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Copper-molybdenum separation electric potential flotation process

A potential and flotation technology, applied in flotation, solid separation, etc., can solve the problems of difficult control of foam grade, high production cost, and influence on molybdenum recovery rate, so as to stabilize foam grade, increase recovery rate, and inhibit copper minerals Effect

Inactive Publication Date: 2017-04-26
CHINA GOLD INNER MONGOLIA MINING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the above method is that not only the production cost is high, but also the implementation is difficult. Due to the large number of separations in the copper-molybdenum separation process, it is difficult to control the foam grade of each operation, which makes it difficult to reach the standard grade of molybdenum concentrate or copper and molybdenum concentrate. Too high, affecting the recovery rate of molybdenum

Method used

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Examples

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Effect test

Embodiment 1

[0008] Copper-molybdenum separation potential flotation process, including raw ore crushing, ore grinding steps, mixed flotation steps, and separation flotation steps. In the separation flotation step, the pH value of the ore pulp is kept at 10, and the concentration of copper and molybdenum separation is set. At 42%, the flow rate is set at 45 m3 / h, and the potential of the roughing pulp is controlled at -530mv by adding the amount of sodium hydrosulfide. Then, 180ml / min of polyacrylamide modified substance is added as a copper inhibitor to separate the rough The selected molybdenum foam grade is controlled at 9-12%, and the copper grade is controlled at 11.2-15%. The grade ranges of copper and molybdenum for other operations are: Refined 1: Molybdenum 10.5-14.5%, containing 10-13% copper; Refined 2: Molybdenum 16.7-20.3%, containing copper 9.8-12.4%; Refined 3: Molybdenum 20.1- 26.0%, containing 7.3-10.4% copper; refined four: molybdenum 24.7-32.0%, containing 5.3-7.6% coppe...

Embodiment 2

[0010] Copper-molybdenum separation potential flotation process, including raw ore crushing, ore grinding steps, mixed flotation steps, and separation flotation steps. In the separation flotation step, the pH value of the ore pulp is kept at 11, and the concentration of copper and molybdenum separation is set. At 40%, the flow rate is set at 40 m3 / h, and the potential of the roughing pulp is controlled at -510mv by adding the amount of sodium hydrosulfide. Then, 180ml / min of polyacrylamide modified substance is added as a copper inhibitor to separate the coarse The selected molybdenum foam grade is controlled at 9-12%, and the copper grade is controlled at 11.2-15%. The grade ranges of copper and molybdenum for other operations are: Refined 1: Molybdenum 10.5-14.5%, containing 10-13% copper; Refined 2: Molybdenum 16.7-20.3%, containing copper 9.8-12.4%; Refined 3: Molybdenum 20.1- 26.0%, containing 7.3-10.4% copper; refined four: molybdenum 24.7-32.0%, containing 5.3-7.6% copp...

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Abstract

The invention discloses a copper-molybdenum separation electric potential flotation process. The copper-molybdenum separation electric potential flotation process comprises the steps of raw ore crushing, ore grinding, mixed flotation and separation flotation. In the separation flotation step, the ph value of pulp is kept at 10-11, and rougher flotation pulp electric potential is controlled to -510 mv to -530 mv; and then 180 ml / min of polyacrylamide modified matter is added as a copper inhibitor, the grade of separation rougher flotation foam molybdenum is controlled to 9%-12%, the copper grade is controlled to 11.2%-15%. Electric potential flotation is adopted, rougher flotation electric potential is controlled to be within a certain range, copper minerals can be restrained to the maximum, the foam grade of corresponding work is stabilized, a large amount of sodium bisulfide can be saved, the molybdenum recovery rate is increased, meanwhile, mutual containing in copper-molybdenum concentrate is lowered, and the effect is also very significant.

Description

technical field [0001] The invention relates to the technical field of non-ferrous metal beneficiation, in particular to a copper-molybdenum separation potential flotation process in copper-molybdenum ore. Background technique [0002] Copper suppression and floating molybdenum is a traditional separation process of copper and molybdenum. In order to improve the separation effect of copper and molybdenum, the measures commonly used are: 1) concentration and drug removal; 2) steam heating; 3) adding sodium sulfide in stages; 4) flotation with nitrogen . The disadvantage of the above method is that not only the production cost is high, but also the implementation is difficult. Due to the large number of separations in the copper-molybdenum separation process, it is difficult to control the foam grade of each operation, which makes it difficult to reach the standard grade of molybdenum concentrate or copper and molybdenum concentrate. If it is too high, it will affect the reco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/02
CPCB03D1/02
Inventor 张引王兴华邵松松周文彬
Owner CHINA GOLD INNER MONGOLIA MINING
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