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Gangue inhibitor and beneficiation method of copper sulfide ore containing easily floated gangue minerals

A beneficiation method and gangue mineral technology, applied in flotation, solid separation, etc., can solve the problems of low copper recovery rate, low copper grade of copper concentrate, adverse effects of copper sulfide minerals, etc., to improve surface characteristics, eliminate Harmful ions, beneficial to the effect of floating

Inactive Publication Date: 2020-01-07
NORTHWEST RES INST OF MINING & METALLURGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a gangue depressant to solve the problem that gangue minerals have a very adverse effect on the flotation of copper sulfide minerals
[0004] Another object of the present invention is to provide a method for beneficiating copper sulfide ore containing gangue minerals to solve the problems of low copper grade and low copper recovery in copper concentrates containing gangue minerals copper sulfide ore

Method used

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  • Gangue inhibitor and beneficiation method of copper sulfide ore containing easily floated gangue minerals
  • Gangue inhibitor and beneficiation method of copper sulfide ore containing easily floated gangue minerals
  • Gangue inhibitor and beneficiation method of copper sulfide ore containing easily floated gangue minerals

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Embodiment 1

[0029] Embodiment 1, a kind of beneficiation method that contains easy pumice gangue mineral copper sulfide ore, adopts figure 1 The technological process in the process selects a certain copper sulfide ore. The copper grade of the ore is 0.95%, the sulfur content is 22.39%, the ore contains talc and serpentine, and the magnesium oxide content accounts for 25.32% of the total ore quality. The specific implementation steps are as follows:

[0030] A. Crush the raw ore, and grind the ore until the ore particle size is less than 0.074mm, accounting for 70%, so that the copper sulfide minerals are fully dissociated, add lime, add lime 5500g / t, add water to adjust the pulp until the weight concentration of the pulp is 35%, the pH value of the slurry is 10;

[0031] B. Add 20g / t of collecting foaming agent, 40g / t of auxiliary collector, and 10g / t of collecting agent to the pulp prepared in step A in sequence, stir evenly, and then carry out roughing and flotation operations. 7min,...

Embodiment 2

[0045] Embodiment 2, a kind of beneficiation method that contains easy pumice gangue mineral copper sulfide ore, adopts figure 1 The technological process in the process selects a certain copper sulfide ore. The copper grade of the ore is 0.68%, the sulfur content is 24.87%, the ore contains talc and serpentine, and the magnesium oxide content accounts for 34.30% of the total ore quality. The specific implementation steps are as follows:

[0046] A. Crush the raw ore, grind the ore until the ore particle size is less than 0.074mm, accounting for 75%, so that the copper sulfide minerals are fully dissociated, and add lime when grinding. The amount of lime added is 5000g / t, and water is added to adjust the slurry to the slurry The weight concentration is 29%, and the pH value of the slurry is 9.5;

[0047] B. Add 15g / t collecting foaming agent, 30g / t auxiliary collecting agent, and 18g / t collecting agent to the pulp prepared in step A, and stir evenly, then carry out roughing a...

Embodiment 3

[0061] Embodiment 3, a kind of beneficiation method that contains easy pumice gangue mineral copper sulfide ore, adopts figure 1 The technological process in the process selects a certain copper sulfide ore. The copper grade of the ore is 1.26%, the sulfur content is 21.55%, the ore contains talc and serpentine, and the magnesium oxide content accounts for 41.67% of the total ore quality. The specific implementation steps are as follows:

[0062] A. Crush the raw ore, grind the ore until the ore particle size is less than 0.074mm, accounting for 82%, so that the copper sulfide minerals are fully dissociated, and add lime when grinding. The amount of lime added is 5800g / t, and water is added to the slurry The weight concentration is 33%, and the pH value of the slurry is 10.5;

[0063] B. Add 25g / t collecting foaming agent, 60g / t auxiliary collecting agent, and 14g / t collecting agent to the slurry prepared in step A, stir evenly, and then carry out roughing and flotation opera...

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Abstract

The invention discloses a gangue inhibitor and a beneficiation method of copper sulphide ore containing easily floated gangue minerals, belongs to the technical field of flotation, and solves the problem that gangue minerals have very adverse effects on flotation of copper sulphide ore. The gangue inhibitor comprises sodium polyacrylate, carboxymethyl cellulose, Arabic gum, sodium silicate, sodiumtripolyphosphate, anhydrous sodium sulfite, sodium lignosulfonate and anhydrous zinc sulfate. The method comprises the following steps: adding lime for ore grinding, and adding water for size mixing;sequentially adding a collecting foaming agent, an auxiliary collecting agent and a collecting agent into obtained ore pulp for roughing; adding a collecting agent into obtained roughing tailings, and scavenging for the first time; adding a collecting agent into the scavenging tailings, and carrying out secondary scavenging; sequentially adding pH regulator lime and the gangue inhibitor into an obtained roughing concentrate, and carrying out primary concentration; and adding pH regulator lime into an obtained primary concentration concentrate for secondary concentration. The gangue inhibitoris capable of reducing the floatability of gangue minerals greatly; the method is capable of improving the copper grade and the copper recovery rate of rough concentrate.

Description

technical field [0001] The invention belongs to the technical field of flotation, and in particular relates to a gangue inhibitor and a beneficiation method for copper sulfide ore containing flotable gangue minerals. Background technique [0002] With the continuous development of copper resources, the amount of copper resources is decreasing day by day, the grade of copper ore is gradually decreasing, and the ore is poor, fine and heterogeneous, which makes it more and more difficult to process some copper ore. In my country's copper mines, some copper ores contain a large amount of gangue minerals such as talc and serpentine. The existence of these gangue minerals has a very adverse effect on the flotation of copper sulfide minerals: one is In the process of ore grinding, it is easy to muddy, and the gangue fine mud produced is very easy to absorb and cover the surface of copper sulfide mineral particles, preventing agents such as collectors and foaming agents from interact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/02B03D1/018B03D103/02B03D101/06
CPCB03D1/018B03D1/02B03D2201/06B03D2203/02
Inventor 黄建芬周涛余江鸿吴斌刘守信黄国贤师伟红
Owner NORTHWEST RES INST OF MINING & METALLURGY INST
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