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Copper-lead separation flotation inhibitor and applications thereof

A copper-lead separation and inhibitor technology is applied in the separation of copper sulfide and lead sulfide minerals, mineral processing, and complex copper-lead-zinc beneficiation and separation. Inexpensive effect

Active Publication Date: 2014-01-15
HUNAN RES INST FOR NONFERROUS METALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to invent a new type of copper-lead separation flotation inhibitor to inhibit lead sulfide minerals, which can significantly improve the copper-lead separation effect and solve the problem of copper-lead separation. difficult question

Method used

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  • Copper-lead separation flotation inhibitor and applications thereof
  • Copper-lead separation flotation inhibitor and applications thereof
  • Copper-lead separation flotation inhibitor and applications thereof

Examples

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Effect test

Embodiment 1

[0033] The copper mineral in a complex lead-zinc mine in Jiangxi is recovered by the present invention as raw ore. The raw ore contains 0.30-0.80% copper, 2.00-4.50% lead, and 3.00-6.50% zinc. The raw ore has complex properties and various useful minerals are embedded. The particle size is uneven, and some minerals are distributed in fine particles. The symbiosis relationship between copper minerals and lead minerals is complex, the particle size of the distribution is fine, the lead minerals have very good buoyancy, and the separation of copper and lead minerals is very difficult.

[0034] (1) The raw ore adopts the process of mixed flotation and separation to select copper and lead minerals; the raw ore is ground to -200 mesh, accounting for 82.15%, and then 600 g / t of sodium carbonate, 600 g / t of zinc sulfate and 200 g / t of sulfide are added Sodium as an inhibitor, 10 g / t xanthate and 30 g / t Z-200 # As a collector for copper-lead mixed flotation operations.

[0035] (2) Co...

Embodiment 2

[0042] A complex copper-lead-zinc mine in Qinghai is used as raw ore. The raw ore contains 0.60-1.00% copper, 2.80-5.00% lead, and 4.00-6.80% zinc. The mosaic relationship between copper, lead and zinc minerals in the ore is complex, and the mosaic particle size is extremely fine. First adopt copper-lead mixed flotation to obtain copper-lead mixed concentrate (same as embodiment 1), and then carry out copper-lead separation operation.

[0043] The specific copper-lead separation process is shown in the appendix figure 2 , The copper-lead separation operation adopts one roughing, two selections, and one sweeping operation. For the obtained copper-lead mixed concentrate, first add 300 g / t activated carbon and 1200 g / t sodium sulfide, stir for 6 minutes, then add 150 g / t CXM, stir for 5 minutes, then add 15 g / t Z-200 # , after stirring for 2 minutes, carry out the copper-lead separation roughing operation; after the roughing operation, carry out two beneficiation operations to...

Embodiment 3

[0049] A complex copper-lead-zinc sulfide ore in Gansu is used as the raw ore. The raw ore contains 0.36-0.59% copper, 1.82-3.21% lead, and 2.00-4.50% zinc. The main copper sulfide mineral in the ore is tetrahedrite, followed by chalcopyrite, and the ore-forming tetrahedrite is replaced by pyrite, arsenopyrite, pyrrhotite, sphalerite, and galena in multiple stages. Segmentation, wrapping, and erosion make it very complex in structure. Chalcopyrite is distributed in the gangue in the form of intermittent raindrops, and its nature is relatively simple.

[0050] Raw ore adopts the priority flotation process of roughing, three-selecting and two-sweeping to select copper. For the specific separation process of copper and lead, see the attached image 3 , rough selection with 1000 g / ton sodium sulfite, 1000 g / ton zinc sulfate, 60 g / ton Z-200 # As a collector, selection 1 adds 150 g / t CXM and 400 g / t zinc sulfate as inhibitors; selection 2 adds 75 g / t CXM and 200 g / t zinc sulfate a...

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Abstract

The invention belongs to the field of complicated copper-lead-zinc sulphide ore beneficiation separation and provides a copper-lead separation flotation inhibitor and applications thereof. The copper-lead separation flotation inhibitor is formed by mixing polymeric ferric sulfate solution with a mass concentration of 5.0%-6.0% and glycerin solution with a mass concentration of 0.8%-1.2%, wherein the mass ratio of the polymeric ferric sulfate solution to the glycerin solution is 1:1-4. Addition of the inhibitor in copper-lead separation operation can remarkably improve copper and lead concentrate qualities, evidently lower mutual containing of copper and lead, and improve flotation recovery rate of copper and lead minerals. The copper-lead separation flotation inhibitor and the applications thereof have the advantages that the copper-lead separation flotation inhibitor is environment-friendly, efficient in sorting, low in reagent cost, easy to operate and the like and applicable to the complicated copper-lead-zinc sulphide ore beneficiation separation.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, relates to the field of complex copper-lead-zinc beneficiation and separation, is mainly used in the field of separation of copper sulfide and lead sulfide minerals, and specifically provides a copper-lead separation flotation inhibitor and its application. Background technique [0002] With the development of society, the utilization rate of resources is increasing day by day, the properties of ore are becoming more and more complex, and the difficulty of beneficiation technology is becoming more and more difficult. The original ore of complex copper-lead-zinc minerals has variable properties, close symbiotic relationship, and mutual replacement. In particular, copper and lead minerals are very similar in nature, often interspersed with fine particles, and separation is very difficult. [0003] The widely used copper-lead separation reagent methods include dichromate method, cyanide m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/018B03D101/06B03D103/02
Inventor 杨建文董艳红陈代雄祁忠旭薛伟李晓东曾惠明胡波朱雅卓
Owner HUNAN RES INST FOR NONFERROUS METALS
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