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Composite inhibitor for chalcopyrite flotation and chalcopyrite flotation method

A compound inhibitor and chalcopyrite technology, which is applied in flotation, solid separation, etc., can solve the problems of toxic and poor chalcopyrite inhibitors, and achieve the goals of inhibiting buoyancy, increasing adsorption capacity, and raw material safety Effect

Active Publication Date: 2019-07-23
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the object of the present invention is to provide a chalcopyrite flotation inhibitor and a copper-containing mineral flotation method to solve the problem of toxic chalcopyrite inhibitor and poor effect in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] This example provides an inhibitor, wherein the dosage of copper sulfate is 250 mg / L, and the dosage of thiomalic acid is 250 mg / L.

[0027] Present embodiment also provides a kind of chalcopyrite flotation method, and this preparation method adopts the prescription of above-mentioned inhibitor, and this method comprises the following steps:

[0028] The flotation machine used in the experiment is a hanging cell flotation machine, the ore used is chalcopyrite single mineral, the pulp concentration is 20%, the experimental drug system is: sodium hydroxide is used as pH regulator, pH=10; the inhibitor is copper sulfate and The compound inhibitor of thiomalic acid, the dosage of copper sulfate is 250mg / L, the dosage of thiomalic acid is 250mg / L; xanthate is used as collector, the dosage is 250mg / L; No. 2 oil is used as foaming agent, the dosage is 22.5mg / L . The order of dosing is: sodium hydroxide→inhibitor→xanthate→No. 2 oil. Foam and tailings products are collected, d...

Embodiment 2

[0031] This example provides an inhibitor, wherein the dosage of copper sulfate is 300 mg / L, and the dosage of thiomalic acid is 300 mg / L.

[0032] Present embodiment also provides a kind of chalcopyrite flotation method, and this preparation method adopts the prescription of above-mentioned inhibitor, and this method comprises the following steps:

[0033] The flotation machine used in the experiment is a hanging cell flotation machine, the ore used is chalcopyrite single mineral, the pulp concentration is 30%, the experimental reagent system is: sodium hydroxide is used as pH regulator, pH=9; For the compound inhibitor of thiomalic acid, the dosage of copper sulfate is 300mg / L, and the dosage of thiomalic acid is 300mg / L; xanthate is used as collector, and the dosage is 300mg / L; No. 2 oil is used as foaming agent, and the dosage is 25mg / L. The order of dosing is: sodium hydroxide→inhibitor→xanthate→No. 2 oil. Foam and tailings products are collected, dried and weighed to ca...

Embodiment 3

[0036] This embodiment provides a kind of inhibitor, wherein the consumption of copper sulfate is 350 mg / L, and the consumption of thiomalic acid is 350 mg / L.

[0037] Present embodiment also provides a kind of chalcopyrite flotation method, and this preparation method adopts the prescription of above-mentioned inhibitor, and this method comprises the following steps:

[0038] The flotation machine used in the experiment is a hanging cell flotation machine, the ore used is chalcopyrite single mineral, the pulp concentration is 20%, the experimental drug system is: sodium hydroxide is used as a pH regulator, pH=8; the inhibitor is copper sulfate and For the composite inhibitor of thiomalic acid, the dosage of copper sulfate is 350mg / L, and the dosage of thiomalic acid is 350mg / L; kerosene is used as a collector, and the dosage is 1000mg / L; No. 2 oil is used as a foaming agent, and the dosage is 30mg / L. The order of dosing is: sodium hydroxide → inhibitor → kerosene → No. 2 oil....

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PUM

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Abstract

The invention provides a composite inhibitor for chalcopyrite flotation. The composite inhibitor comprises a Cu<2+>-containing compound and thiomalic acid. The invention also provides a chalcopyrite flotation method. According to the method, the composite inhibitor is added to chalcopyrite slurry, and the dosage of copper sulfate in the composite inhibitor is 200-500 mg / L, dosage of thiomalic acidis 200-500 mg / L, and the mass ratio of copper sulfate to thiomalic acid is 1:1. The inhibitor is a copper ion reinforced thiomalic acid composite inhibitor, and the novel composite inhibitor is the first in the field of copper ore-containing flotation and provides a novel idea for research on composite use of ions and mercapto compounds as inhibitors.

Description

technical field [0001] The invention relates to the technical field of mineral processing, and relates to a mineral processing agent, a preparation and a mineral processing method, in particular to a chalcopyrite flotation compound inhibitor and a chalcopyrite flotation method. Background technique [0002] Chalcopyrite (CuFeS2) is one of the most abundant and widely distributed copper-bearing minerals, accounting for about 70% of the earth's copper. Chalcopyrite is often co-existed with other non-ferrous metal sulfide ores, which brings difficulties to its utilization. The recovery and utilization of chalcopyrite is mainly realized by flotation method. During flotation separation, the inhibitors of chalcopyrite mainly include cyanide, sodium sulfide, and thioglycolic acid. The inhibitory effect of cyanide inhibitors is the best, but they are highly toxic. Coupled with the strengthening of environmental protection awareness in our country, such inhibitors will be gradually ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/018B03D1/02B03D101/06B03D103/02
CPCB03D1/018B03D1/02B03D2201/06B03D2203/02
Inventor 张崇辉何廷树卜显忠陈伟王森
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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