阅读说明：本技术 一种从含金重选尾矿中回收多金属的选矿方法 (Beneficiation method for recovering polymetallic from gold-containing gravity separation tailings ) 是由 杨洪英 佟琳琳 牛会群 陈桥 张勤 于 2020-12-04 设计创作，主要内容包括：一种从含金重选尾矿中回收多金属的选矿方法,包括以下步骤：(1)将含金重选尾矿制成矿浆；(2)加入水玻璃制成活化矿浆；(3)进行一次粗选；(4)一次粗选精矿制成二次矿浆,进行尼尔森精选；(5)尼尔森尾矿浓缩制成三次矿浆；进行二次粗选；(6)将二次粗选精矿进行两级精选和两级扫选,精矿为铜铅混合矿,尾矿为锌粗矿；(7)铜铅混合矿制成四次矿浆进行两级精选；尾矿铅精矿；精矿铜精矿；(8)锌粗矿制成五次矿浆；进行三次粗选；(9)三次粗选精矿进行两级精选,三次粗选尾矿进行三级扫选,精矿为锌精矿；尾矿作为硫粗矿；(10)向硫粗矿粗选后精矿进行一级精选。本发明的方法大幅度提高含金重选尾矿中有价金属的利用率,提高了多种有价金属的回收率。(A beneficiation process to recover polymetallic from gold-bearing gravity tailings, comprising the steps of: (1) preparing gold-containing gravity tailings into ore pulp; (2) adding water glass to prepare activated ore pulp; (3) carrying out primary roughing; (4) preparing the primary roughing concentrate into secondary ore pulp, and carrying out Nielsen concentration; (5) concentrating the Nielsen tailings to prepare tertiary ore pulp; carrying out secondary roughing; (6) carrying out two-stage concentration and two-stage scavenging on the secondary roughing concentrate, wherein the concentrate is a copper-lead mixed ore, and the tailings are zinc roughing; (7) preparing copper-lead mixed ore into ore pulp for four times, and carrying out two-stage concentration; tailing lead concentrate; concentrate copper concentrate; (8) preparing the zinc coarse ore into five times of ore pulp; carrying out three times of rough separation; (9) carrying out two-stage concentration on the third roughing concentrate, and carrying out three-stage scavenging on the third roughing tailings, wherein the concentrate is zinc concentrate; the tailings are used as sulfur crude ore; (10) and carrying out primary concentration on the concentrate after the sulfur rough ore is roughly selected. The method greatly improves the utilization rate of valuable metals in the gold-containing gravity tailings and improves the recovery rate of various valuable metals.)

1. A beneficiation method for recovering polymetallic from gold-containing gravity tailings is characterized by comprising the following steps:

(1) adding water into the gold-containing gravity tailings, and stirring to prepare ore pulp, wherein the mass concentration of the ore pulp is 35-45%; the gold-containing gravity tailings are obtained by jigging and gravity separation of gold-containing lead-zinc ores, the solid content of the gold-containing gravity tailings contains 1.2-1.5 g/t of Au, contains 1.6-2.0% of Pb, 12-18% of Pb, 2.3-2.7% of Cu and accounts for more than or equal to 85% of the total mass of the part with the particle size of less than or equal to 0.074 mm;

(2) adding activating agent water glass into the ore pulp, and then uniformly stirring to prepare activated ore pulp; adding water glass according to the solid component of 300-400 g/t ore pulp;

(3) placing the activated ore pulp into a flotation machine, sequentially adding a collecting agent and a foaming agent, and then performing primary roughing to obtain primary roughed concentrate and primary roughed tailings; the collecting agent is butyl xanthate, and the addition amount of the collecting agent is according to solid components in 100-200 g/t ore pulp; the foaming agent is 11^#Oil, the addition amount of which is 30-50 g/t of solid components in the ore pulp;

(4) adding water into the primary roughed concentrate to prepare secondary ore pulp with the mass concentration of 30-50%, carrying out Nielsen concentration on the secondary ore pulp by using a Nielsen concentrator, and controlling the gravity value to be 40-80G to obtain Nielsen concentrate and Nielsen tailings; the Nielsen concentrate is used as gold concentrate;

(5) concentrating the Nielsen tailings into tertiary ore pulp with the mass concentration of 30-35% by using a thickener; adding lime into the tertiary ore pulp to adjust the pH value to 10-12, adding inhibitor zinc sulfate, collecting agent ethionine and foaming agent pinitol oil, and then carrying out secondary roughing to obtain secondary roughed concentrate and secondary roughed tailings; wherein the addition amount of zinc sulfate is 300-400 g/t of solid components of the tertiary ore pulp; the adding amount of the ethidium and nitrogen is 400-600 g/t of the solid components of the tertiary ore pulp, and the adding amount of the pinitol oil is 50-60 g/t of the solid components of the tertiary ore pulp;

(6) carrying out primary concentration and secondary concentration on the secondary roughing concentrates, and carrying out primary scavenging and secondary scavenging on the secondary roughing tailings, wherein the primary concentrated concentrates obtained by the primary concentration are subjected to secondary concentration, and the secondary concentrated concentrates obtained by the secondary concentration are used as copper-lead mixed ores; mixing the primary concentrated tailings obtained from the primary concentrate and the primary scavenging concentrate obtained from the primary scavenging with the tertiary ore pulp simultaneously to carry out secondary roughing; carrying out secondary scavenging on the primary scavenged tailings obtained by the primary scavenging, mixing secondary scavenged concentrate obtained by the secondary scavenging with the primary scavenged tailings to carry out secondary scavenging together, and taking the secondary scavenged tailings obtained by the secondary scavenging as zinc rough ores; wherein, the collecting agent amyl xanthate is added in the primary scavenging, and the addition amount is 50-100 g/t of solid components of the secondary rougher tailings; adding a collecting agent amyl xanthate into the secondary scavenging, wherein the addition amount is 50-100 g/t of solid components of the primary scavenging tailings;

(7) concentrating the copper-lead mixed ore by using a thickener to prepare four times of ore pulp with the mass concentration of 25-35%; adding an inhibitor, a collecting agent and a foaming agent into the ore pulp for four times in sequence, and then carrying out three-time concentration and four-time concentration; the inhibitor is sodium sulfide, and the addition amount of the inhibitor is 300-400 g/t of solid components of the ore pulp for four times; the collecting agent is ethyl xanthate, and the adding amount of the collecting agent is 100-200 g/t of the solid component t of the ore pulp for four times; the foaming agent is terpineol oil, and the addition amount of the solid component of the ore pulp is 20-30 g/t for four times; the tailings obtained by the third fine concentration are used as lead concentrate; carrying out four-time concentration on the three-time concentration concentrate obtained by the three-time concentration, and mixing the four-time concentration tailings obtained by the four-time concentration with the three-time concentration concentrate obtained by the three-time concentration to carry out four-time concentration; four times of concentration concentrate obtained by four times of concentration is used as copper concentrate;

(8) concentrating the zinc coarse ore into quintic ore pulp with the mass concentration of 25-30% by using a thickener; adding lime into the fifth-time ore pulp to adjust the pH value to 10-12, adding an activating agent copper sulfate, a collecting agent isobutyl xanthate and foaming agent terpineol oil, and then performing tertiary roughing to obtain tertiary roughed concentrate and tertiary roughed tailings; wherein the addition amount of copper sulfate is 200-400 g/t of solid components of the quintic ore pulp, the addition amount of isobutyl xanthate is 80-120 g/t of solid components of the quintic ore pulp, and the addition amount of pine alcohol oil is 20-40 g/t of solid components of the quintic ore pulp;

(9) carrying out five times of concentration and six times of concentration on the three-time roughing concentrates, and carrying out three times of scavenging, four times of scavenging and five times of scavenging on the three-time roughing tailings, wherein the five times of concentration concentrates obtained by the five times of concentration are carried out six times of concentration, and the six times of concentration concentrates obtained by the six times of concentration are used as zinc concentrates; mixing the five-time concentration tailings obtained by the five-time concentration and the three-time scavenging concentrates obtained by the three-time scavenging with the five-time ore pulp for three-time roughing; performing four times of scavenging on the three scavenged tailings obtained by the three times of scavenging, performing five times of scavenging on the four scavenged tailings obtained by the four times of scavenging, and taking the five times of scavenged tailings obtained by the five times of scavenging as the sulfur rough ore; mixing the four-time scavenging concentrate obtained by the four-time scavenging with the three-time scavenging tailings for four-time scavenging, and mixing the five-time scavenging concentrate obtained by the five-time scavenging with the four-time scavenging tailings for five-time scavenging; adding a collecting agent isobutyl xanthate into the tertiary roughing concentrate during the tertiary scavenging, wherein the addition amount of the collecting agent isobutyl xanthate is 30-50 g/t of solid components of the tertiary roughing concentrate;

(10) adding a collecting agent butyl xanthate into the crude sulfur ores, wherein the addition amount of the butyl xanthate is 40-80 g/t of the solid components of the crude sulfur ores, and then carrying out four-time roughing to obtain four-time roughed concentrate and four-time roughed tailings; carrying out six scavenging on the four-time roughing tailings, and carrying out seven fine concentration on the four-time roughing concentrates; seven concentrated concentrates obtained by seven times of concentration are used as sulfur concentrates, and seven concentrated tailings obtained by seven times of concentration and four rough tailings are mixed for six times of scavenging.

2. The beneficiation method for recovering polymetallic from gold-containing gravity tailings according to claim 1, wherein in the step (4), the gold concentrate contains 7.2-7.7 g/t Au; the yield of the gold concentrate is 0.1-0.25%.

3. A beneficiation method for recovering polymetallic materials from gold-containing gravity tailings according to claim 1, wherein in the step (7), the copper concentrate contains 11-16% by mass of Cu.

4. A beneficiation method for recovering polymetallic from gold-containing gravity tailings according to claim 1, wherein in the step (7), the lead concentrate contains 34-42% by mass of Pb.

5. A beneficiation method for recovering polymetallic from gold-containing gravity tailings according to claim 1, wherein in the step (9), the zinc concentrate contains 23-29% Zn by mass.

6. The beneficiation method for recovering the polymetallic from the gold-containing reselection tailings according to claim 1, characterized in that the recovery rate of Au is 50.5-59%, the recovery rate of Cu is 70-78.10%, the recovery rate of Pb is 68-75%, and the recovery rate of Zn is 63-70%.

7. A beneficiation method for recovering polymetallic from gold-containing gravity tailings according to claim 1, wherein in the step (10), the sulfur concentrate contains S39-43% by mass, and the recovery rate of S is 51.2-61.5%.

Technical Field

The invention belongs to the technical field of beneficiation, and particularly relates to a beneficiation method for recovering multiple metals from gold-containing gravity tailings.

Background

At present, most metallurgical enterprises in China have the problem that tailings are difficult to treat, and the comprehensive utilization rate of the tailings is low, so that the tailings resources are seriously wasted, and the surrounding environmental safety is also harmed. After the gold-containing lead-zinc ore is subjected to jigging reselection treatment, the obtained reselection tailings contain complex chemical components and mainly contain valuable metals such as gold, copper, zinc, lead, iron and the like, and the valuable metals are effectively recovered, so that the metal recovery rate and the metal utilization rate of the tailings can be improved, and the economic benefit of metallurgical enterprises can be improved; the most important point is that the pressure on the surrounding environment can be effectively reduced. The method for recovering various valuable metals in the gravity separation tailings mainly adopts related processes of a Nielsen gravity separation method, a combined priority flotation method, a medium gravity separation flotation method and the like. Under the background of the decreasing mineral resources, the secondary recovery of various valuable metals in tailings is the direction worthy of research nowadays.

Disclosure of Invention

The invention aims to provide a beneficiation method for recovering multiple metals from gold-containing gravity tailings, so as to solve the problems of low comprehensive recovery rate and low comprehensive utilization rate of the metals in complex tailings.

The method of the invention comprises the following steps:

1. adding water into the gold-containing gravity tailings, and stirring to prepare ore pulp, wherein the mass concentration of the ore pulp is 35-45%; the gold-containing gravity tailings are obtained by jigging and gravity separation of gold-containing lead-zinc ores, the solid content of the gold-containing gravity tailings contains 1.2-1.5 g/t of Au, contains 1.6-2.0% of Pb, 12-18% of Pb, 2.3-2.7% of Cu and accounts for more than or equal to 85% of the total mass of the part with the particle size of less than or equal to 0.074 mm;

2. adding activating agent water glass into the ore pulp, and then uniformly stirring to prepare activated ore pulp; adding water glass according to the solid component of 300-400 g/t ore pulp;

3. placing the activated ore pulp into a flotation machine, adding a collecting agent and a foaming agent in sequence, and then carrying outPerforming secondary roughing to obtain primary roughed concentrate and primary roughed tailings; the collecting agent is butyl xanthate, and the addition amount of the collecting agent is according to solid components in 100-200 g/t ore pulp; the foaming agent is 11^#Oil, the addition amount of which is 30-50 g/t of solid components in the ore pulp;

4. adding water into the primary roughed concentrate to prepare secondary ore pulp with the mass concentration of 30-50%, carrying out Nielsen concentration on the secondary ore pulp by using a Nielsen concentrator, and controlling the gravity value to be 40-80G to obtain Nielsen concentrate and Nielsen tailings; the Nielsen concentrate is used as gold concentrate;

5. concentrating the Nielsen tailings into tertiary ore pulp with the mass concentration of 30-35% by using a thickener; adding lime into the tertiary ore pulp to adjust the pH value to 10-12, adding inhibitor zinc sulfate, collecting agent ethionine and foaming agent pinitol oil, and then carrying out secondary roughing to obtain secondary roughed concentrate and secondary roughed tailings; wherein the addition amount of zinc sulfate is 300-400 g/t of solid components of the tertiary ore pulp; the adding amount of the ethidium and nitrogen is 400-600 g/t of the solid components of the tertiary ore pulp, and the adding amount of the pinitol oil is 50-60 g/t of the solid components of the tertiary ore pulp;

6. carrying out primary concentration and secondary concentration on the secondary roughing concentrates, and carrying out primary scavenging and secondary scavenging on the secondary roughing tailings, wherein the primary concentrated concentrates obtained by the primary concentration are subjected to secondary concentration, and the secondary concentrated concentrates obtained by the secondary concentration are used as copper-lead mixed ores; mixing the primary concentrated tailings obtained from the primary concentrate and the primary scavenging concentrate obtained from the primary scavenging with the tertiary ore pulp simultaneously to carry out secondary roughing; carrying out secondary scavenging on the primary scavenged tailings obtained by the primary scavenging, mixing secondary scavenged concentrate obtained by the secondary scavenging with the primary scavenged tailings to carry out secondary scavenging together, and taking the secondary scavenged tailings obtained by the secondary scavenging as zinc rough ores; wherein, the collecting agent amyl xanthate is added in the primary scavenging, and the addition amount is 50-100 g/t of solid components of the secondary rougher tailings; adding a collecting agent amyl xanthate into the secondary scavenging, wherein the addition amount is 50-100 g/t of solid components of the primary scavenging tailings;

7. concentrating the copper-lead mixed ore by using a thickener to prepare four times of ore pulp with the mass concentration of 25-35%; adding an inhibitor, a collecting agent and a foaming agent into the ore pulp for four times in sequence, and then carrying out three-time concentration and four-time concentration; the inhibitor is sodium sulfide, and the addition amount of the inhibitor is 300-400 g/t of solid components of the ore pulp for four times; the collecting agent is ethyl xanthate, and the adding amount of the collecting agent is 100-200 g/t of the solid component t of the ore pulp for four times; the foaming agent is terpineol oil, and the addition amount of the solid component of the ore pulp is 20-30 g/t for four times; the tailings obtained by the third fine concentration are used as lead concentrate; carrying out four-time concentration on the three-time concentration concentrate obtained by the three-time concentration, and mixing the four-time concentration tailings obtained by the four-time concentration with the three-time concentration concentrate obtained by the three-time concentration to carry out four-time concentration; four times of concentration concentrate obtained by four times of concentration is used as copper concentrate;

8. concentrating the zinc coarse ore into quintic ore pulp with the mass concentration of 25-30% by using a thickener; adding lime into the fifth-time ore pulp to adjust the pH value to 10-12, adding an activating agent copper sulfate, a collecting agent isobutyl xanthate and foaming agent terpineol oil, and then performing tertiary roughing to obtain tertiary roughed concentrate and tertiary roughed tailings; wherein the addition amount of copper sulfate is 200-400 g/t of solid components of the quintic ore pulp, the addition amount of isobutyl xanthate is 80-120 g/t of solid components of the quintic ore pulp, and the addition amount of pine alcohol oil is 20-40 g/t of solid components of the quintic ore pulp;

9. carrying out five times of concentration and six times of concentration on the three-time roughing concentrates, and carrying out three times of scavenging, four times of scavenging and five times of scavenging on the three-time roughing tailings, wherein the five times of concentration concentrates obtained by the five times of concentration are carried out six times of concentration, and the six times of concentration concentrates obtained by the six times of concentration are used as zinc concentrates; mixing the five-time concentration tailings obtained by the five-time concentration and the three-time scavenging concentrates obtained by the three-time scavenging with the five-time ore pulp for three-time roughing; performing four times of scavenging on the three scavenged tailings obtained by the three times of scavenging, performing five times of scavenging on the four scavenged tailings obtained by the four times of scavenging, and taking the five times of scavenged tailings obtained by the five times of scavenging as the sulfur rough ore; mixing the four-time scavenging concentrate obtained by the four-time scavenging with the three-time scavenging tailings for four-time scavenging, and mixing the five-time scavenging concentrate obtained by the five-time scavenging with the four-time scavenging tailings for five-time scavenging; adding a collecting agent isobutyl xanthate into the tertiary roughing concentrate during the tertiary scavenging, wherein the addition amount of the collecting agent isobutyl xanthate is 30-50 g/t of solid components of the tertiary roughing concentrate;

10. adding a collecting agent butyl xanthate into the crude sulfur ores, wherein the addition amount of the butyl xanthate is 40-80 g/t of the solid components of the crude sulfur ores, and then carrying out four-time roughing to obtain four-time roughed concentrate and four-time roughed tailings; carrying out six scavenging on the four-time roughing tailings, and carrying out seven fine concentration on the four-time roughing concentrates; seven concentrated concentrates obtained by seven times of concentration are used as sulfur concentrates, and seven concentrated tailings obtained by seven times of concentration and four rough tailings are mixed for six times of scavenging.

In the step 3, the primary rougher tailings obtained by the primary rougher flotation are used as flotation tailings 1; in the step 10, six scavenging tailings obtained by six scavenging are used as flotation tailings 2; flotation tailings 1 and flotation tailings 2 are taken as total tailings.

In the step 4, the gold concentrate contains 7.2-7.7 g/t of Au; the yield of the gold concentrate is 0.1-0.25%.

In the step 7, the copper concentrate contains 11-16% by mass of Cu.

In the step 7, the lead concentrate contains 34-42% of Pb by mass percent.

In the step 9, the zinc concentrate contains 23-29% of Zn by mass percent.

In the method, the recovery rate of Au is 50.5-59%, the recovery rate of Cu is 70-78.10%, the recovery rate of Pb is 68-75%, and the recovery rate of Zn is 63-70%.

In the step 10, the sulfur concentrate contains 39-43% of S by mass percent, and the recovery rate of S is 51.2-61.5%.

The gold-containing gravity tailings directly enter a common flotation stage according to a traditional method, so that a large amount of valuable metals in the tailings are lost. The invention adopts a mode of combining flotation and Nielsen gravity separation, firstly recovers most of gold, and then performs flotation combination, greatly improves the utilization rate of valuable metals in the gold-containing gravity separation tailings, can obtain high-grade gold concentrate, lead concentrate, zinc concentrate and copper concentrate, and can also obtain sulfur concentrate. Compared with the prior art, the recovery rate of various valuable metals in the gold-containing gravity tailings is improved, and the method has great economic benefit; the method has low discharge rate of the solid wastes of the tailings, meets the national discharge standard, and can reduce the pollution to the environment to the minimum.

Drawings

Fig. 1 is a schematic flow chart of a beneficiation method for recovering polymetallic from gold-containing gravity tailings in an embodiment of the present invention.

Detailed Description

The gold-containing gravity tailings used by the invention are tailings produced by a process for jigging gravity separation of gold-containing lead-zinc ores in some concentrating plant in Hainan.

All flotation reagents adopted by the invention are commercial products.

The embodiment of the invention adopts a thickener model NSL-66.

The Nielsen concentrator in the embodiment of the invention is of a type MD-3.

Example 1

The flow is shown in figure 1;

adding water into the gold-containing gravity tailings, and stirring to prepare ore pulp, wherein the mass concentration of the ore pulp is 35%; the gold-containing gravity tailings are obtained by jigging and gravity separation of gold-containing lead-zinc ores, the solid content of the gold-containing gravity tailings contains 1.5g/t of Au, 18% of Pb, 2.0% of Cu and 2.7% of Zn by mass, and the part with the particle size of less than or equal to 0.074mm accounts for 85% of the total mass;

adding activating agent water glass into the ore pulp, and then uniformly stirring to prepare activated ore pulp; adding water glass according to the solid component of 300g/t ore pulp;

placing the activated ore pulp into a flotation machine, sequentially adding a collecting agent and a foaming agent, and then performing primary roughing to obtain primary roughed concentrate and primary roughed tailings; the collecting agent is butyl xanthate, and the addition amount of the collecting agent is 200g/t of solid components in ore pulp; the foaming agent is 11^#Oil, the addition of which is according to the solid component in the ore pulp of 50 g/t;

adding water into the primary roughing concentrate to prepare secondary ore pulp with the mass concentration of 30%, carrying out Nielsen concentration on the secondary ore pulp by using a Nielsen concentrator, and controlling the gravity value to be 80G to obtain Nielsen concentrate and Nielsen tailings; the Nielsen concentrate is used as gold concentrate;

concentrating the Nielsen tailings into three times of ore pulp with the mass concentration of 30% by using a thickener; adding lime into the tertiary ore pulp to adjust the pH value to 12, adding inhibitor zinc sulfate, collecting agent ethionine and foaming agent pinitol oil, and then carrying out secondary roughing to obtain secondary roughed concentrate and secondary roughed tailings; wherein the addition amount of the zinc sulfate is the solid component of the ore pulp of 400g/t three times; the adding amount of the ethidium and nitrogen is 600g/t of the solid component of the tertiary ore pulp, and the adding amount of the pinitol oil is 60g/t of the solid component of the tertiary ore pulp;

carrying out primary concentration and secondary concentration on the secondary roughing concentrates, and carrying out primary scavenging and secondary scavenging on the secondary roughing tailings, wherein the primary concentrated concentrates obtained by the primary concentration are subjected to secondary concentration, and the secondary concentrated concentrates obtained by the secondary concentration are used as copper-lead mixed ores; mixing the primary concentrated tailings obtained from the primary concentrate and the primary scavenging concentrate obtained from the primary scavenging with the tertiary ore pulp simultaneously to carry out secondary roughing; carrying out secondary scavenging on the primary scavenged tailings obtained by the primary scavenging, mixing secondary scavenged concentrate obtained by the secondary scavenging with the primary scavenged tailings to carry out secondary scavenging together, and taking the secondary scavenged tailings obtained by the secondary scavenging as zinc rough ores; wherein, the collecting agent amyl xanthate is added in the primary scavenging, and the addition amount is 100g/t of solid components of the secondary roughing tailings; adding a collecting agent amyl xanthate into the secondary scavenging, wherein the addition amount is 100g/t of solid components of the primary scavenging tailings;

concentrating the copper-lead mixed ore by using a thickener to prepare four-time ore pulp with the mass concentration of 25%; adding an inhibitor, a collecting agent and a foaming agent into the ore pulp for four times in sequence, and then carrying out three-time concentration and four-time concentration; the inhibitor is sodium sulfide, and the addition amount of the inhibitor is 400g/t of solid components of ore pulp for four times; the collecting agent is ethyl xanthate, and the addition amount of the collecting agent is 200g/t of the solid component t of the ore pulp for four times; the foaming agent is pine oil, and the addition amount of the pine oil is 30g/t of solid components of ore pulp for four times; the tailings obtained by the third fine concentration are used as lead concentrate; carrying out four-time concentration on the three-time concentration concentrate obtained by the three-time concentration, and mixing the four-time concentration tailings obtained by the four-time concentration with the three-time concentration concentrate obtained by the three-time concentration to carry out four-time concentration; four times of concentration concentrate obtained by four times of concentration is used as copper concentrate;

concentrating the zinc coarse ore into five times of ore pulp with the mass concentration of 30% by using a thickener; adding lime into the fifth-time ore pulp to adjust the pH value to 12, adding an activating agent copper sulfate, a collecting agent isobutyl xanthate and foaming agent terpineol oil, and then carrying out three-time rough concentration to obtain three-time rough concentrate and three-time rough tailings; wherein the addition amount of copper sulfate is 400g/t of solid components of the quintic ore pulp, the addition amount of isobutyl xanthate is 120g/t of solid components of the quintic ore pulp, and the addition amount of pinitol oil is 40g/t of solid components of the quintic ore pulp;

carrying out five times of concentration and six times of concentration on the three-time roughing concentrates, and carrying out three times of scavenging, four times of scavenging and five times of scavenging on the three-time roughing tailings, wherein the five times of concentration concentrates obtained by the five times of concentration are carried out six times of concentration, and the six times of concentration concentrates obtained by the six times of concentration are used as zinc concentrates; mixing the five-time concentration tailings obtained by the five-time concentration and the three-time scavenging concentrates obtained by the three-time scavenging with the five-time ore pulp for three-time roughing; performing four times of scavenging on the three scavenged tailings obtained by the three times of scavenging, performing five times of scavenging on the four scavenged tailings obtained by the four times of scavenging, and taking the five times of scavenged tailings obtained by the five times of scavenging as the sulfur rough ore; mixing the four-time scavenging concentrate obtained by the four-time scavenging with the three-time scavenging tailings for four-time scavenging, and mixing the five-time scavenging concentrate obtained by the five-time scavenging with the four-time scavenging tailings for five-time scavenging; adding a collecting agent isobutyl xanthate into the tertiary roughing concentrate during the tertiary scavenging, wherein the addition amount of the collecting agent isobutyl xanthate is 50g/t of solid components of the tertiary roughing concentrate;

adding a collecting agent butyl xanthate into the sulfur crude ore, adding the solid component of the sulfur crude ore in an amount of 80g/t, and then carrying out four-time roughing to obtain four-time roughing concentrate and four-time roughing tailings; carrying out six scavenging on the four-time roughing tailings, and carrying out seven fine concentration on the four-time roughing concentrates; seven times of concentrated concentrate obtained by seven times of concentration is used as sulfur concentrate, seven times of concentrated tailings obtained by seven times of concentration and four times of rough tailings are mixed for six times of scavenging;

the primary rougher tailings obtained by the primary rougher flotation are used as flotation tailings 1; taking six scavenging tailings obtained by six scavenging as flotation tailings 2; flotation tailings 1 and 2 are used as total tailings;

the gold concentrate contains 7.7g/t of Au; the yield of gold concentrate is 0.21%; the copper concentrate contains 16% of Cu by mass percent; the lead concentrate contains 42 percent of Pb by mass percent; the zinc concentrate contains 29 percent of Zn by mass percent;

the recovery rate of Au is 57%, the recovery rate of Cu is 78.1%, the recovery rate of Pb is 75% and the recovery rate of Zn is 70%;

the sulfur concentrate contains 43 percent of S according to mass percent, and the recovery rate of S is 61.5 percent.

Example 2

The method is the same as example 1, except that:

(1) the mass concentration of the ore pulp is 40%; the solid component of the gold-containing reselection tailings contains 1.3g/t of Au, 15% of Pb, 1.8% of Cu and 2.5% of Zn according to mass percentage, and the part with the particle size less than or equal to 0.074mm accounts for 90% of the total mass;

(2) the adding amount of the water glass is according to the solid component of 350g/t ore pulp;

(3) the addition amount of the butyl xanthate is according to the solid component in the ore pulp of 150 g/t; 11^#The oil is added according to the solid component in the ore pulp of 40 g/t;

(4) the mass concentration of the secondary ore pulp is 40%, and the Nielson concentration gravity value is 60G;

(5) the mass concentration of the tertiary pulp is 33%; lime is added into the tertiary pulp to adjust the pH value to 11; adding zinc sulfate according to the solid component of the triple ore pulp at 350 g/t; the adding amount of the ethidium and the azote is the solid component of the tertiary ore pulp of 500g/t, and the adding amount of the pinitol oil is the solid component of the tertiary ore pulp of 55 g/t;

(6) the addition amount of the primary scavenging amyl xanthate is 80g/t of solid components of the secondary roughing tailings; the addition amount of the second scavenging amyl xanthate is 80g/t of the solid component of the first scavenging tailings;

(7) the mass concentration of the four times of ore pulp is 30 percent; the addition amount of the sodium sulfide is 350g/t of the solid component of the ore pulp for four times; the adding amount of the ethyl xanthate is 150g/t of the solid component of the ore pulp for four times; the addition amount of the pine oil is the solid component of the ore pulp of 25g/t four times;

(8) the mass concentration of the ore pulp is 28 percent for five times; adding lime to adjust the pH value to 11; the adding amount of copper sulfate is 300g/t of solid components of the quintic ore pulp, the adding amount of isobutyl xanthate is 100g/t of solid components of the quintic ore pulp, and the adding amount of pine oil is 30g/t of solid components of the quintic ore pulp;

(9) the adding amount of the isobutyl xanthate during the third scavenging is 40g/t of the solid components of the third roughing concentrate;

(10) the addition amount of the butyl xanthate in the sulfur crude ore is 60g/t of the solid component of the sulfur crude ore;

(11) the gold concentrate contains 7.7g/t of Au; the yield of gold concentrate is 0.25%; the copper concentrate contains 15 percent of Cu by mass percent; the lead concentrate contains 39% of Pb by mass percent; the zinc concentrate contains 27% of Zn by mass percent;

(12) the recovery rate of Au is 59%, the recovery rate of Cu is 76%, the recovery rate of Pb is 73%, and the recovery rate of Zn is 69%;

(13) the sulfur concentrate contains 40% of S by mass percent, and the recovery rate of S is 53.7%.

Example 3

The method is the same as example 1, except that:

(1) the mass concentration of the ore pulp is 45 percent; the solid component of the gold-containing reselection tailings contains 1.2g/t of Au, 12% of Pb, 1.6% of Cu and 2.3% of Zn according to mass percentage, and the part with the particle size less than or equal to 0.074mm accounts for 95% of the total mass;

(2) adding water glass according to the solid component of 300g/t ore pulp;

(3) the addition amount of the butyl xanthate is according to the solid component in the ore pulp of 100 g/t; 11^#The oil is added according to the solid component in the ore pulp of 30 g/t;

(4) the mass concentration of the secondary ore pulp is 50%, and the Nielson concentration gravity value is 40G;

(5) the mass concentration of the tertiary pulp is 35 percent; lime is added into the tertiary pulp to adjust the pH value to 10; adding zinc sulfate according to the solid component of the ore pulp of three times at 300 g/t; the adding amount of the ethidium and the azote is 400g/t of solid components of the tertiary ore pulp, and the adding amount of the pinitol oil is 50g/t of solid components of the tertiary ore pulp;

(6) the addition amount of the primary scavenging amyl xanthate is 50g/t of solid components of the secondary roughing tailings; the addition amount of the second scavenging amyl xanthate is 50g/t of the solid component of the first scavenging tailings;

(7) the mass concentration of the four ore pulps is 35 percent; the addition amount of the sodium sulfide is 300g/t of the solid component of the ore pulp for four times; the adding amount of the ethyl xanthate is 100g/t of the solid component t of the ore pulp for four times; the addition amount of the pine oil is 20g/t of the solid component of the ore pulp for four times;

(8) the mass concentration of the ore pulp is 25 percent for five times; adding lime to adjust the pH value to 10; the adding amount of copper sulfate is 200g/t of solid components of the quintic ore pulp, the adding amount of isobutyl xanthate is 80g/t of solid components of the quintic ore pulp, and the adding amount of pine oil is 20g/t of solid components of the quintic ore pulp;

(9) the adding amount of the isobutyl xanthate during the third scavenging is 30g/t of solid components of the third roughing concentrate;

(10) the addition amount of the butyl xanthate in the sulfur crude ore is 40g/t of the solid component of the sulfur crude ore;

(11) the gold concentrate contains 7.4g/t of Au; the yield of gold concentrate is 0.1%; the copper concentrate contains 11% of Cu by mass percent; the lead concentrate contains 34 percent of Pb by mass percent; the zinc concentrate contains 23 percent of Zn by mass percent;

(12) the recovery rate of Au is 50.5%, the recovery rate of Cu is 70%, the recovery rate of Pb is 68%, and the recovery rate of Zn is 63%;

(13) the sulfur concentrate contains 39% of S by mass percent, and the recovery rate of S is 51.2%.