阅读说明：本技术 氧化铅锌矿浮选铅锌的选矿药剂及其制备方法 (Beneficiation reagent for lead and zinc oxide ore flotation and preparation method thereof ) 是由 李振宇 王志丰 郭海宁 包玺琳 姜永智 王李鹏 何海涛 苗培 于 2020-04-28 设计创作，主要内容包括：一种氧化铅锌矿浮选铅锌的选矿药剂及其制备方法,由以下重量份的原料制成：柴油15-25、碳酸钠10-20、硫化钠20-30、3,3-二甲基丁酸40-50、硫磺13-18、酯化黄药15-30、3-氨基-2丁烯酸25-45、生石灰4-5、活化剂20-24。本发明具有选别效率高、产率大、用量少、工艺流程简单可靠、易于操作等特点,适于复硫化、氧化混合铅锌矿选矿应用,能为该铅锌矿带来很好的经济效益。(The beneficiation reagent for lead and zinc oxide ore flotation and the preparation method thereof are prepared from the following raw materials in parts by weight: 15-25 parts of diesel, 10-20 parts of sodium carbonate, 20-30 parts of sodium sulfide, 40-50 parts of 3, 3-dimethylbutyric acid, 13-18 parts of sulfur, 15-30 parts of esterified xanthate, 25-45 parts of 3-amino-2-butenoic acid, 4-5 parts of quicklime and 20-24 parts of an activator. The method has the characteristics of high sorting efficiency, high yield, small using amount, simple and reliable process flow, easy operation and the like, is suitable for ore dressing of the re-vulcanized and oxidized mixed lead-zinc ore, and can bring good economic benefit to the lead-zinc ore.)

1. The beneficiation reagent for lead and zinc oxide ore flotation is characterized by being prepared from the following raw materials in parts by weight: 15-25 parts of diesel, 10-20 parts of sodium carbonate, 20-30 parts of sodium sulfide, 40-50 parts of 3, 3-dimethylbutyric acid, 13-18 parts of sulfur, 15-30 parts of esterified xanthate, 25-45 parts of 3-amino-2-butenoic acid, 4-5 parts of quicklime and 20-24 parts of an activator.

2. The lead-zinc oxide ore flotation lead-zinc beneficiation reagent according to claim 1, characterized by being prepared from the following raw materials in parts by weight: 15 parts of diesel oil, 10 parts of sodium carbonate, 20 parts of sodium sulfide, 40 parts of 3, 3-dimethylbutyric acid, 13 parts of sulfur, 15 parts of esterified xanthate, 25 parts of 3-amino-2-butenoic acid, 4 parts of quicklime and 20 parts of an activator.

3. The lead-zinc oxide ore flotation lead-zinc beneficiation reagent according to claim 1, characterized by being prepared from the following raw materials in parts by weight: 25 parts of diesel oil, 20 parts of sodium carbonate, 30 parts of sodium sulfide, 50 parts of 3, 3-dimethylbutyric acid, 18 parts of sulfur, 30 parts of esterified xanthate, 45 parts of 3-amino-2-butenoic acid, 5 parts of quicklime and 24 parts of an activator.

4. The lead-zinc oxide ore flotation lead-zinc beneficiation reagent according to claim 1, characterized by being prepared from the following raw materials in parts by weight: 20 parts of diesel oil, 15 parts of sodium carbonate, 25 parts of sodium sulfide, 45 parts of 3, 3-dimethylbutyric acid, 15 parts of sulfur, 18 parts of esterified xanthate, 35 parts of 3-amino-2-butenoic acid, 4.5 parts of quicklime and 22 parts of an activator.

5. The preparation method of the beneficiation reagent for lead and zinc oxide ore flotation is characterized by comprising the following steps:

A. preparing diesel oil, sodium carbonate and sulfur into 20-40% oily solution;

B. adding sodium sulfide, 3-dimethylbutyric acid and esterified xanthate into the oily solution obtained in the step A, wherein the reaction time is 15-50 min, and the stirring speed is 100-;

C. adding 3-amino-2-butenoic acid, quicklime and an activating agent into the solution obtained in the step B, stirring at the speed of 20-150 r/min, reacting for 1-2 h, and filtering, wherein the reaction temperature and the filtering temperature are 20-50 ℃; the product is a mixture of oily liquid and aqueous solution, wherein the weight percentage of the oily liquid is 30-70%, and the weight percentage of the aqueous solution is 30-70%;

D. c, evaporating the filtrate obtained by filtering in the step C, wherein the specific gravity of the evaporated solution is 1.76g/cm³～3.27g/cm³；

E. The cooling mode adopts gradient cooling, and the cooling temperature is 15-35 ℃;

F. and E, carrying out suction filtration on the cooling liquid in the step E, wherein the suction filtration time is 40-80 min.

6. The preparation method of the beneficiation reagent for lead and zinc oxide flotation of lead and zinc ores according to claim 5, characterized in that: and the reaction time in the step B is 30min, and the stirring speed is 140 r/min.

7. The preparation method of the beneficiation reagent for lead and zinc oxide flotation of lead and zinc ores according to claim 5, characterized in that: and C, in the step C, the stirring speed is 90 r/min, the reaction is carried out for 1.5h, and then the filtration is carried out, wherein the reaction temperature and the filtration temperature are 35 ℃.

8. The preparation method of the beneficiation reagent for lead and zinc oxide flotation of lead and zinc ores according to claim 5, characterized in that: the cooling temperature in said step E was at 25 ℃.

9. The preparation method of the beneficiation reagent for lead and zinc oxide flotation of lead and zinc ores according to claim 5, characterized in that: and F, suction filtration time of the step F is 60 min.

Technical Field

The invention relates to the technical field of beneficiation, in particular to a beneficiation reagent for lead and zinc flotation of lead-zinc oxide ores and a preparation method thereof.

Background

At present, the raw materials of lead-zinc ore in China mainly comprise lead-zinc sulfide, lead-zinc oxide, mixed lead-zinc sulfide and oxide, and the like. According to the technological conditions of dressing and smelting, three natural types of lead-zinc ore are drawn out according to the proportion of lead-zinc oxide and lead-zinc sulfide. Namely sulfide ore, containing lead and zinc oxide less than 10 percent; oxidizing ore containing lead and zinc oxide more than 30%; the mixed ore contains 10 to 30 percent of lead and zinc oxide.

The current lead-zinc oxide ore flotation process adopts flotation agents such as xanthate, thiophosphate, mercaptan, thiamine ester, xanthate, black drug ester, xanthate and the like as the dominant collecting agents, but in actual ore dressing, the results mostly fail to meet the design requirements, the lead-zinc concentrate recovery rate is low, and the waste of mineral resources is caused.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art and provides a lead and zinc oxide ore dressing agent for lead and zinc flotation, which has the advantages of high sorting efficiency, high yield, small using amount, simple and reliable process flow and a preparation method thereof.

The invention relates to a lead and zinc oxide ore dressing agent for lead and zinc flotation, which is characterized by being prepared from the following raw materials in parts by weight: 15-25 parts of diesel, 10-20 parts of sodium carbonate, 20-30 parts of sodium sulfide, 40-50 parts of 3, 3-dimethylbutyric acid, 13-18 parts of sulfur, 15-30 parts of esterified xanthate, 25-45 parts of 3-amino-2-butenoic acid, 4-5 parts of quicklime and 20-24 parts of an activator.

In the technical scheme of the beneficiation reagent for lead and zinc flotation of lead and zinc oxide ores, the further preferable technical scheme is characterized in that:

1. the feed is prepared from the following raw materials in parts by weight: 15 parts of diesel oil, 10 parts of sodium carbonate, 20 parts of sodium sulfide, 40 parts of 3, 3-dimethylbutyric acid, 13 parts of sulfur, 15 parts of esterified xanthate, 25 parts of 3-amino-2-butenoic acid, 4 parts of quicklime and 20 parts of an activator;

2. the feed is prepared from the following raw materials in parts by weight: 25 parts of diesel oil, 20 parts of sodium carbonate, 30 parts of sodium sulfide, 50 parts of 3, 3-dimethylbutyric acid, 18 parts of sulfur, 30 parts of esterified xanthate, 45 parts of 3-amino-2-butenoic acid, 5 parts of quicklime and 24 parts of an activator;

3. the feed is prepared from the following raw materials in parts by weight: 20 parts of diesel oil, 15 parts of sodium carbonate, 25 parts of sodium sulfide, 45 parts of 3, 3-dimethylbutyric acid, 15 parts of sulfur, 18 parts of esterified xanthate, 35 parts of 3-amino-2-butenoic acid, 4.5 parts of quicklime and 22 parts of an activator.

The invention relates to a preparation method of a beneficiation reagent for lead and zinc flotation of lead and zinc oxide ores, which is characterized by comprising the following steps: A. preparing diesel oil, sodium carbonate and sulfur into 20-40% oily solution; B. adding sodium sulfide, 3-dimethylbutyric acid and esterified xanthate into the oily solution obtained in the step A, wherein the reaction time is 15-50 min, and the stirring speed is 100-; C. adding 3-amino-2-butenoic acid, quicklime and an activating agent into the solution obtained in the step B, stirring at the speed of 20-150 r/min, reacting for 1-2 h, and filtering, wherein the reaction temperature and the filtering temperature are 20-50 ℃; the product is a mixture of oily liquid and aqueous solution, wherein the weight percentage of the oily liquid is 30-70%, and the weight percentage of the aqueous solution is 30-70%; D. c, evaporating the filtrate obtained by filtering in the step C, wherein the specific gravity of the evaporated solution is 1.76g/cm³～3.27g/cm³(ii) a E. The cooling mode adopts gradient cooling, and the cooling temperature is 15-35 ℃; F. and E, carrying out suction filtration on the cooling liquid in the step E, wherein the suction filtration time is 40-80 min.

In the technical scheme of the preparation method of the beneficiation reagent for lead and zinc oxide ore flotation, the further preferable technical scheme is characterized in that:

1. the reaction time in the step B is 30min, and the stirring speed is 140 r/min;

2. in the step C, the stirring speed is 90 revolutions per minute, the reaction is carried out for 1.5 hours, and then the filtration is carried out, wherein the reaction temperature and the filtration temperature are 35 ℃;

3. the cooling temperature in the step E is 25 ℃;

4. and F, suction filtration time of the step F is 60 min.

Compared with the prior art, the method has the characteristics of high sorting efficiency, high yield, small using amount, simple and reliable process flow, easy operation and the like, is suitable for the ore dressing application of the re-vulcanized and oxidized mixed lead-zinc ore, and can bring good economic benefit to the lead-zinc ore.

Detailed Description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.