阅读说明：本技术 一种含碳金锑砷混合金矿分离方法 (Method for separating carbon-containing gold-antimony-arsenic mixed gold ore ) 是由 许振凯 张新念 于 2019-11-21 设计创作，主要内容包括：一种含碳金锑砷混合金矿分离方法,包括以下步骤,1)将含碳金锑砷混合精矿运送到调浆搅拌桶内进行调浆；2)往步骤1)的调浆搅拌桶内进行粗选,粗选加入的药剂包括KS-3、酸化水玻璃、硝酸铅、丁铵黑药和乙硫氮；3)将药剂与浆料充分混合均匀后,选出粗锑金精矿；4)将步骤3)的粗锑金精矿进行精选,精选加入的药剂包括KS-3、酸化水玻璃和硝酸铅；充分混合均匀后选出合格的锑金精矿。本发明能够将复杂含碳金锑砷矿分离为锑金精矿和金锑金矿两种合格精矿产品的含碳金锑砷混合金矿分离方法。(A method for separating carbon-containing gold, antimony and arsenic mixed gold ore comprises the following steps of 1) conveying carbon-containing gold, antimony and arsenic mixed concentrate into a size mixing stirring barrel for size mixing; 2) roughing is carried out in the size mixing and stirring barrel in the step 1), and the medicament added in roughing comprises KS-3, acidified water glass, lead nitrate, ammonium nitrate black powder and ethidium nitrate; 3) fully and uniformly mixing the reagent and the slurry to obtain coarse antimony gold concentrate; 4) selecting the crude antimony gold concentrate obtained in the step 3), wherein the selected added medicaments comprise KS-3, acidified water glass and lead nitrate; and after fully and uniformly mixing, selecting qualified antimony gold concentrate. The invention relates to a method for separating carbon-containing gold, antimony and arsenic mixed gold ore, which can separate complex carbon-containing gold, antimony and arsenic ore into two qualified ore concentrate products, namely antimony gold ore concentrate and gold-antimony gold ore concentrate.)

1. A method for separating carbon-containing gold, antimony and arsenic mixed gold ore is characterized by comprising the following steps: comprises the following steps of (a) carrying out,

1) conveying the carbon-containing gold, antimony and arsenic bulk concentrates into a slurry mixing stirring barrel for slurry mixing;

2) roughing is carried out in the size mixing and stirring barrel in the step 1), and the medicament added in roughing comprises 5 parts by weight of KS-3, 1.5 parts by weight of acidified water glass, 1 part by weight of lead nitrate, 0.05 part by weight of ammonium nitrate black drug and 0.2 part by weight of ethidium nitrate, per 1000 parts by weight of carbon-containing gold, antimony and arsenic mixed concentrate;

3) fully and uniformly mixing the reagent and the slurry to obtain coarse antimony gold concentrate;

4) the coarse antimony gold concentrate obtained in the step 3) is selected, and the selected chemicals comprise: adding 1 weight part of KS-3, 0.5 weight part of acidified water glass and 0.5 weight part of lead nitrate into every 1000 weight parts of crude antimony gold concentrate; and after fully and uniformly mixing, selecting qualified antimony gold concentrate.

2. The method for separating the mixed gold ore containing carbon, gold, antimony and arsenic according to claim 1, wherein the method comprises the following steps: performing primary scavenging on the tailings obtained in the step 4), wherein the added medicament for the primary scavenging comprises: adding 0.15 weight part of lead nitrate, 0.02 weight part of ammonium nitrate black powder and 0.1 weight part of butyl xanthate into every 1000 weight parts of tailings; and (4) combining the concentrate obtained by one scavenging with the crude antimony gold concentrate obtained in the step 3) and entering the step 4).

3. The method for separating the mixed gold ore containing carbon, gold, antimony and arsenic according to claim 2, characterized by comprising the following steps: and (3) carrying out secondary scavenging on the tailings subjected to the primary scavenging, wherein the added agents for the secondary scavenging comprise: adding 0.1 part by weight of lead nitrate and 0.01 part by weight of ammonium nitrate black powder into every 1000 parts by weight of tailings; and tailings obtained by secondary scavenging are qualified gold-antimony concentrate, and the secondary scavenging concentrate returns to the primary scavenging operation.

4. The method for separating the mixed gold ore containing carbon, gold, antimony and arsenic according to claim 1, wherein the method comprises the following steps: the medicament added in the roughing comprises 5 parts by weight of KS-3, 1.5 parts by weight of acidified water glass, 1 part by weight of lead nitrate, 0.05 part by weight of ammonium nitrate black medicine and 0.2 part by weight of ethidium and nitrogen, which are added into every 1000 parts by weight of the carbon-containing gold, antimony and arsenic mixed concentrate.

5. The method for separating the mixed gold ore containing carbon, gold, antimony and arsenic according to claim 1, wherein the method comprises the following steps: the carefully added medicaments comprise: for every 1000 weight parts of the crude antimony gold concentrate, 1 weight part of KS-3, 0.5 weight part of acidified water glass and 0.5 weight part of lead nitrate were added.

6. The method for separating the mixed gold ore containing carbon, gold, antimony and arsenic according to claim 2, characterized by comprising the following steps: the medicament added in one scavenging comprises: 0.15 part by weight of lead nitrate, 0.02 part by weight of ammonium nitrate nigrosine and 0.1 part by weight of butyl xanthate are added into every 1000 parts by weight of tailings.

7. The method for separating the mixed gold ore containing carbon, gold, antimony and arsenic according to claim 3, wherein the method comprises the following steps: the medicament added in the secondary scavenging comprises: 0.1 weight part of lead nitrate and 0.01 weight part of ammonium nitrate heicide are added into every 1000 weight parts of tailings.

Technical Field

The invention relates to a separation method of complex mixed gold ore, in particular to a separation method of carbon-containing gold, antimony and arsenic mixed gold ore.

Background

The raw ore containing carbon, gold, antimony and arsenic belongs to complex ores which are difficult to process worldwide, the gold, antimony and separation difficulty is high, and the gold, antimony, arsenic and carbon separation of the carbon-containing gold, antimony and arsenic mixed concentrate is more difficult after the raw ore is acted by a medicament. Because the antimony content of the bulk concentrate is not high, carbon and arsenic are contained, and the calcium, magnesium and silicon content is high, if the bulk concentrate is directly smelted, no profit can be generated whether the pyrometallurgy or the hydrometallurgy is adopted, and the environmental protection influence is large. Although mineral separation scholars at home and abroad have a certain research on the worldwide problem of the separation of the complex carbon-containing gold, antimony and arsenic ores, no substantial breakthrough is made all the time, and no relevant documents and production cases are found at home and abroad aiming at the flotation separation technology of the carbon-containing gold, antimony and arsenic bulk concentrates.

If the separation technology of the carbon-containing gold-antimony-arsenic bulk concentrate can be successful, two products with gold and antimony contents within the specified limits are obtained and enter different smelting processes respectively, the influence of smelting cost and environmental protection can be reduced to the maximum extent, the comprehensive recovery utilization rate of resources is improved, and meanwhile, greater economic benefits are created, and similar mineral products are more at home and abroad and are not effectively recovered, so the technology has great popularization value.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a method for separating carbon-containing gold-antimony-arsenic mixed gold ore, which can separate complex carbon-containing gold-antimony-arsenic ore into two qualified ore concentrate products, namely antimony gold ore concentrate and gold-antimony gold ore concentrate.

In order to solve the technical problems, the technical scheme provided by the invention is as follows: a method for separating mixed gold ore containing carbon, gold, antimony and arsenic comprises the following steps,

1) conveying the carbon-containing gold, antimony and arsenic bulk concentrates into a slurry mixing stirring barrel for slurry mixing;

2) roughing is carried out in the size mixing and stirring barrel in the step 1), and the medicament added in roughing comprises 5 parts by weight of KS-3, 1.5 parts by weight of acidified water glass, 1 part by weight of lead nitrate, 0.05 part by weight of ammonium nitrate black drug and 0.2 part by weight of ethidium nitrate, per 1000 parts by weight of carbon-containing gold, antimony and arsenic mixed concentrate;

3) fully and uniformly mixing the reagent and the slurry to obtain coarse antimony gold concentrate;

4) the coarse antimony gold concentrate obtained in the step 3) is selected, and the selected chemicals comprise: adding 1 weight part of KS-3, 0.5 weight part of acidified water glass and 0.5 weight part of lead nitrate into every 1000 weight parts of crude antimony gold concentrate; and after fully and uniformly mixing, selecting qualified antimony gold concentrate.

Preferably, the tailings of the step 4) are subjected to primary scavenging, and the chemicals added in the primary scavenging include: adding 0.15 weight part of lead nitrate, 0.02 weight part of ammonium nitrate black powder and 0.1 weight part of butyl xanthate into every 1000 weight parts of tailings; and (4) combining the concentrate obtained by one scavenging with the crude antimony gold concentrate obtained in the step 3) and entering the step 4).

Preferably, the tailings after the first scavenging are subjected to secondary scavenging, and the added reagents for the secondary scavenging comprise: adding 0.1 part by weight of lead nitrate and 0.01 part by weight of ammonium nitrate black powder into every 1000 parts by weight of tailings; and tailings obtained by secondary scavenging are qualified gold-antimony concentrate, and the secondary scavenging concentrate returns to the primary scavenging operation.

Preferably, the agent added in the roughing method comprises 5 parts by weight of KS-3, 1.5 parts by weight of acidified water glass, 1 part by weight of lead nitrate, 0.05 part by weight of ammonium nitrate black and 0.2 part by weight of ethidium per 1000 parts by weight of the carbon-containing gold, antimony and arsenic mixed gold ore concentrate.

In the above method for separating the mixed gold ore containing carbon, gold, antimony and arsenic, preferably, the carefully-selected added reagents comprise: for every 1000 weight parts of the crude antimony gold concentrate, 1 weight part of KS-3, 0.5 weight part of acidified water glass and 0.5 weight part of lead nitrate were added.

Preferably, the agent added in the first scavenging process comprises: 0.15 part by weight of lead nitrate, 0.02 part by weight of ammonium nitrate nigrosine and 0.1 part by weight of butyl xanthate are added into every 1000 parts by weight of tailings.

Preferably, the reagent added in the second scavenging comprises: 0.1 weight part of lead nitrate and 0.01 weight part of ammonium nitrate heicide are added into every 1000 weight parts of tailings.

Compared with the prior art, the invention has the advantages that: firstly, the invention effectively inhibits gangue minerals containing carbon, silicon, calcium, magnesium, arsenic and the like by adopting the high-efficiency combined inhibitor, activates antimony minerals, ensures the recovery rate of antimony, and simultaneously further enriches the antimony and gold grades in the antimony-gold concentrate to meet the quality requirement of smelting raw materials. Secondly, the invention properly improves the gold grade in the antimony-gold concentrate by adopting the selective combined collecting agent and the refined regulation and control of the process, ensures that the antimony grade in the antimony-gold concentrate is in a certain range, and ensures that the benefit of the antimony-gold concentrate entering the hydrometallurgy is maximized. Thirdly, the invention can obtain high-quality antimony gold concentrate with high antimony and high gold and low antimony gold-antimony concentrate, wherein the antimony gold concentrate has a gold grade of 80g/t, an antimony grade of 40g/t and an arsenic grade of 1.5 percent; the gold grade of the gold-antimony concentrate is 50g/t, the antimony grade is 11%, and the arsenic grade is 2%.

Detailed Description

In order to facilitate an understanding of the present invention, the present invention will be described more fully and in detail with reference to the preferred embodiments, but the scope of the present invention is not limited to the specific embodiments described below.

It should be particularly noted that when an element is referred to as being "fixed to, connected to or communicated with" another element, it can be directly fixed to, connected to or communicated with the other element or indirectly fixed to, connected to or communicated with the other element through other intermediate connecting components.

Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.