Efficient flotation collecting agent for zinc sulfide and application of agent

A collector, zinc sulfide technology, applied in flotation, chemical instruments and methods, solid separation and other directions, can solve the problems of low zinc recovery rate, slow zinc floating speed, large amount of copper sulfate, etc., to achieve efficient recovery of zinc, The effect of high cost of chemicals and high cost of wastewater treatment

Active Publication Date: 2020-12-11
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the existing problems in zinc sulfide flotation, the purpose of the present invention is to provide a high-efficiency flotation collector of zinc sulfide and its application. The collector of the present invention can significantly improve the recovery rate of zinc flotation and solve the Problems such as large copper consumption, slow zinc floating speed, and low zinc recovery rate

Method used

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  • Efficient flotation collecting agent for zinc sulfide and application of agent
  • Efficient flotation collecting agent for zinc sulfide and application of agent
  • Efficient flotation collecting agent for zinc sulfide and application of agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A Inner Mongolia sulfur as lead-zinc ore, lead ore 3.01%, 2.43% zinc, 21.35% sulfur. The lead-zinc sulphide ore sulfur ore belongs. Complex ore mineral composition, each as a mineral fine disseminated ore is the major metallic minerals pyrite, galena and sphalerite iron, limonite small or trace amounts of lead sulfate or the like cerussite . Zinc sulfide minerals in the mine (including Fe> 8%) Marmatite mainly poor floatability, flotation recovery difficult. High sulfur content ore, will interfere with the flotation of lead and zinc.

[0032] In this embodiment from 2-hydroxyethyl HQ-Zn dibutyl dithiocarbamate (structural formula shown Ⅰ), 2-hydroxy-1-thiol mercapto group (e.g., the structure shown in Formula Ⅱ) and octanol mass percent accounted for 95.5%, 2%, 2.5%, uniformly mixed by adding liquid.

[0033]

[0034](1) The original mine uses the process of lead and zinc minerals with priority floating lead and zerce zinc; the original mine mills to the milling fineness ...

Embodiment 2

[0050] The process flow is basically the same as in Example 1, and the zinc coarse selection uses HQ-Zn, but the dosage amount is adjusted. The flotation results are shown in Table 1.

[0051] Zinc coarse: lime 500g / t, copper sulfate 200g / t, HQ-Zn50 g / t, pine alcohol oil 9g / t; zinc scans one: HQ-Zn30g / t; zinc scans 2: HQ-Zn 15g / T; zinc selection 1: lime 200g / t; zinc selection 2: lime 100g / t; results shown in 5 # in Table 1.

Embodiment 3

[0053] The process flow is basically the same as in Example 1, and the zinc coarse selection uses HQ-Zn, but the dosage amount is adjusted. The flotation results are shown in Table 1.

[0054] Zinc coarse: lime 500g / t, copper sulfate 200g / t, HQ-Zn 30g / t, pine alcohol oil 9g / t; zinc scans one: HQ-Zn10 g / t; zinc scans 2: HQ-Zn 5g / t; zinc selection 1: lime 200g / t; zinc selection 2: lime 100g / t; results shown in Table 1.

[0055] Table 1 Test 1 # ~ Test 7 # full process closed circuit comparison test results / %

[0056]

[0057]

[0058] As can be seen from Table 1, HQ-Zn (Example 1 (7 #)) is relative to a single capture agent Hedd (ratio 1 (2 #)), DET (ratio 3) (3 #)), the zinc-zinc grace in the zinc concentrate obtained by HQ-Zn is 51.41%, and the recovery rate of zinc operation is also 93.90%. When the three pharmaceutical groups are combined with zinc capture, a synergistic effect is produced. Get better zinc fluttering results. Contrast HQ-Zn (Example 1 (7 #))...

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Abstract

The invention discloses an efficient flotation collecting agent for zinc sulfide and application of the efficient flotation collecting agent, and the efficient flotation collecting agent is composed of the following components in percentage by mass: 92%-98% of 2-hydroxyethyl dibutylcarbamodithioate, 1.5%-5% of 2-hydroxy-1-mercaptomercaptan and 0.5%-3% of octanol. According to the synergistic effect of the medicament, the 2-hydroxyethyl dibutylcarbamodithioate, the 2-hydroxy-1-mercaptomercaptan and a non-ionic collecting agent octanol are used as the zinc combined collecting agent. The combinedcollecting agent has good collecting performance on zinc sulfide minerals, the collecting performance on pyrite is weak, and the purpose of efficiently recycling zinc can be achieved. According to the zinc combined collecting agent HQ-Zn, when a higher zinc recovery rate is obtained, the dosage of copper sulfate is 1/5-1/2 of that of copper sulfate in a sodium butyl xanthate system, and the dosage of HQ-Zn is 1/4-3/5 of that of sodium butyl xanthate. After the agent and the method are adopted, raw ore containing 0.3%-5% of lead, 0.3%-7% of zinc and 1%-25% of sulfur is treated, the zinc gradein the zinc concentrate can be larger than 50%, and the zinc operation recovery rate is larger than 88%.

Description

Technical field [0001] The present invention belongs to the technical field of mineral processing, particularly relates to an efficient flotation collectors zinc sulfide and its application. Background technique [0002] Zinc is an important strategic resources in my country, plays an important role in the non-ferrous metals industry. Mainly zinc metal used in the manufacture of brass, zinc and casting alloys. Resource mainly of zinc sulfide based ore, iron sulfide minerals / sphalerite. When the iron content in zinc flash more than 6%, referred marmatite. As sphalerite isomorphous mixed iron content increased, the activator ions of copper decreased in adsorption capacity of the surface is not conducive to collector adsorption. Thus, Marmatite floatability inferior sphalerite floatability. When the lead-zinc sulphide ore flotation separation, compared to galena, iron / sphalerite poor floatability, can not be directly xanthate flotation collector. As the slurry system inevitably ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/018B03B7/00B03B9/00B03D101/02B03D103/02B03D101/06B03D101/04
CPCB03B7/00B03B9/00B03D1/018B03D2201/02B03D2201/04B03D2201/06B03D2203/02
Inventor 魏茜焦芬覃文庆杨聪仁刘维韩俊伟董刘洋
Owner CENT SOUTH UNIV
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