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Flotation separation process of copper sulfide lead ore

A copper sulfide and lead ore technology, applied in flotation, solid separation and other directions, can solve the problems of complicated operation, ecological environment pollution, and difficult application of heating method, achieve good beneficiation indicators, low cost of chemicals, and reduced sensitivity Effect

Active Publication Date: 2019-01-08
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Commonly used methods for floating copper to suppress lead include dichromate method, cyanide method and heating method, etc., but the dichromate method and cyanide method are very serious to the ecological environment pollution, and the heating method is complicated to operate and difficult to control. Difficult; the commonly used floating lead copper inhibition method generally uses cyanide or a cyanide-based mixture as an inhibitor to inhibit copper sulfide minerals. Due to environmental protection pressure and the dissolution of cyanide on precious metals, it is currently less used

Method used

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  • Flotation separation process of copper sulfide lead ore

Examples

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Comparison scheme
Effect test

Embodiment 1

[0018] This embodiment is a kind of ore flotation separation process of copper-lead sulfide ore. Taking a copper-lead polymetallic sulfide ore in Shaanxi as an ore sample, the raw ore contains 0.19% Cu grade, the primary copper sulfide occupation rate is 58.97%, and the secondary copper sulfide occupation rate is 58.97%. The rate is 30.24%, and the Pb grade is 0.42%. The specific steps are as follows:

[0019] (1) Prepare combined inhibitors: mix ferric sulfate and magnesium chloride at a mass ratio of 3:1 to obtain combined inhibitors; prepare combined collectors: mix ethylthiocarbamate, O-isooctyl-N-ethoxy Carbonylthiocarbamate and 4-terpene alcohol are mixed according to the mass ratio of 4:1:1 to obtain a combined collector;

[0020] (2) Grinding the copper-lead sulfide ore until the mass percentage of the particle fineness is less than 0.074mm is 95%;

[0021] (3) adding water to the grinding product of step (2) to adjust the mass percentage concentration of the pulp to ...

Embodiment 2

[0025] This embodiment is a kind of flotation separation process of copper-lead sulfide ore. Taking a copper-lead polymetallic sulfide ore in Yunnan as an ore sample, the raw ore contains 0.23% Cu grade, the primary copper sulfide share is 55.97%, and the secondary copper sulfide share is 32.24%, Pb grade 0.58%, the specific steps are as follows:

[0026] (1) Prepare combined inhibitors: mix ferric sulfate and magnesium chloride at a mass ratio of 3:2 to obtain combined inhibitors; prepare combined collectors: mix ethylthiocarbamate, O-isooctyl-N-ethoxy Carbonylthiocarbamate and 4-terpene alcohol are mixed according to the mass ratio of 8:2.5:3 to obtain a combined collector;

[0027] (2) Grinding the copper-lead sulfide ore until the mass percentage of the particle fineness is less than 0.074mm is 85%;

[0028] (3) adding water to the grinding product in step (2) to adjust the mass percentage concentration of the pulp to 30%;

[0029] (4) The product obtained in step (3) is...

Embodiment 3

[0032] This embodiment is a kind of flotation separation process of copper-lead sulfide ore. A copper-lead polymetallic sulfide ore in Shaanxi is used as an ore sample. 18.24%, Pb grade 1.34%, the specific steps are as follows:

[0033] (1) Prepare combined inhibitors: mix ferric sulfate and magnesium chloride at a mass ratio of 6:5 to obtain combined inhibitors; prepare combined collectors: mix ethylthiocarbamate, O-isooctyl-N-ethoxy Carbonylthiocarbamate and 4-terpene alcohol are mixed according to the mass ratio of 6:2:3 to obtain a combined collector;

[0034] (2) Grinding the copper-lead sulfide ore until the mass percentage of the particle fineness is less than 0.074mm is 70%;

[0035] (3) adding water to the grinding product of step (2) to adjust the mass percentage concentration of the pulp to 35%;

[0036] (4) The product of step (3) is subjected to flotation through the sorting closed-circuit process of "one rough, three fine and two sweeps, and the medium ore is r...

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Abstract

The invention discloses a flotation separation process of copper sulfide lead ore. The copper sulfide lead ore is ground till the mass percent of the partial ore with the particle fineness less than 0.074 mm is 70%-95%; water is added into the ground copper sulfide lead ore to adjust the mass percent concentration of ore pulp to 25-35%; and 200g / t-1500g / t of a combined inhibitor, namely, a mixtureof ferric sulfate and magnesium chloride is added into the ore pulp, and 40g / t-120g / t of a combined collecting agent composed of ethionine ester, O-isooctyl-N-ethyoxyl carbonyl thionocarbamates and 4-terpene alcohol is added to carry out floatation separation. According to the flotation separation process, flotation separation of the copper sulfide lead ore is realized; and the process is simple,low in reagent cost, high in concentrate quality and free of environmental pollution.

Description

technical field [0001] The invention relates to a flotation separation process of copper-lead sulfide ore, which belongs to the technical field of mineral processing. Background technique [0002] Copper and lead, as the main metal mineral products related to the national economy and people's livelihood, can be used in many fields of industrial and agricultural production. With the development of the economy, copper and lead mineral resources have been exploited and utilized on a large scale, making the amount of resources increasingly scarce, the processing capacity of refractory ores is increasing, and the processing of ores is becoming more and more difficult, especially the ores containing copper and lead minerals. Flotation separation is more difficult; at the same time, as people begin to pay more and more attention to environmental protection and energy consumption reduction, higher and higher requirements are put forward for resource utilization, energy consumption a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/00B03D1/002B03B1/00B03D1/012B03D1/008B03D101/06B03D103/02B03D101/02
CPCB03B1/00B03D1/00B03D1/002B03D1/008B03D1/012B03D2201/06B03D2201/02B03D2203/02
Inventor 赵刘闯刘全军梁远琴江旭纪慧超余力罗斌
Owner KUNMING UNIV OF SCI & TECH
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