Reconstruction process of middle ore circulation mode based on copper-molybdenum potential control flotation separation

A potential control and circulation technology, applied in flotation, solid separation and other directions, can solve the problems of long separation process, difficult operation, large consumption of chemicals, etc., to shorten the selection process, reduce the amount of circulation, and improve the recovery rate.

Active Publication Date: 2021-01-22
有研资源环境技术研究院(北京)有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Due to the fast oxidation speed of sodium sulfide and sodium hydrogen sulfide, the reagent consumption in the process of potential regulation flotation is relatively large
In addition, the copper-molybdenum mixed concentrate obtained by mixed flotation has a large mud content, low quality, high silicon-aluminum content, and fine grinding is required in the separation process of copper and molybdenum, which leads to the foam viscosity in the process of copper-molybdenum potential regulation flotation. Extremely large, severe mechanical entrainment, lengthy separation process, and vicious cycle of floating mud gangue, which brings many problems such as large consumption of chemicals, unstable indicators, high mutual content of concentrates, and difficult operation

Method used

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  • Reconstruction process of middle ore circulation mode based on copper-molybdenum potential control flotation separation
  • Reconstruction process of middle ore circulation mode based on copper-molybdenum potential control flotation separation
  • Reconstruction process of middle ore circulation mode based on copper-molybdenum potential control flotation separation

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Embodiment 1

[0043] In a porphyry-type copper-molybdenum deposit in the Jungar area of ​​Xinjiang, the molybdenum-containing minerals in the ore are mainly molybdenite, the copper is mainly chalcopyrite and bornite, and the gangue minerals are mainly mica, quartz and weathered feldspar. The molybdenum grade in the copper-molybdenum mixed concentrate after copper-molybdenum mixed flotation is 0.62%, and the copper grade is 20.15%.

[0044]After the main process of copper-molybdenum mixed flotation is to obtain the copper-molybdenum mixed concentrate for drug removal, the method of the present invention is used to go through one roughing and one sweeping to obtain molybdenum rough concentrate and copper concentrate, and the flotation concentration of roughing and sweeping is 22% and 20% respectively, the amount of roughing sodium sulfide is 18kg / t, the amount of sodium thioglycolate is 0.1kg / t, the roughing time is 6 minutes, the amount of sweeping sodium sulfide is 15kg / t, and the amount of ...

Embodiment 2

[0049] A porphyry-type copper-molybdenum deposit in the Narigongma area of ​​Qinghai. The molybdenum-containing minerals in the ore are mainly molybdenite, the copper is mainly bornite and chalcopyrite, and the gangue minerals are mainly quartz, mica, and weathered feldspar. After copper-molybdenum mixed flotation, the molybdenum grade in the copper-molybdenum mixed concentrate is 0.62%, and the copper grade is 20.15%.

[0050] After the main process of copper-molybdenum mixed flotation is to obtain the copper-molybdenum mixed concentrate for drug removal, the method of the present invention is used to go through one roughing and one sweeping to obtain molybdenum rough concentrate and copper concentrate, and the flotation concentration of roughing and sweeping is 25% and 23% respectively, the amount of roughing sodium sulfide is 28kg / t, the amount of sodium thioglycolate is 0.2kg / t, the roughing time is 7 minutes, the amount of sweeping sodium sulfide is 25kg / t, and the amount ...

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Abstract

The invention discloses a process for reconstructing the circulation mode of middlings based on copper-molybdate potential-controlled flotation separation. According to the process, regarding the problems of large middling circulation volume, long copper-molybdate separation flow, serous argillization, large chemical consumption, unstable index, difficult operation and the like in a porphyritic copper-molybdate mixed concentrated copper-molybdate potential-controlled flotation separation process, the circulation loop of middlings with large mud amount in the copper-molybdate potential-controlled flotation separation process is reconstructed, the operation concentration ratio of molybdate concentrate is effectively improved, the circulation volume of argillized gangue is reduced, the operation frequency in the molybdate dressing phase is greatly reduced, and great economic benefit is brought.

Description

technical field [0001] The invention belongs to the technical field of non-ferrous metal beneficiation, and relates to a process for reconstructing medium ore circulation mode based on copper-molybdenum potential control flotation separation, aiming at copper-molybdenum mixed concentrate obtained by mixed flotation in porphyry copper-molybdenum ore. Background technique [0002] Porphyry-type copper-molybdenum ore is an important source of copper-molybdenum ore in my country. It is commonly found in granite porphyry and surrounding rocks. Generally, hydrothermal alteration related to its mineralization is silicified and sericitized. Therefore, the main gangue minerals in porphyry copper-molybdenum deposits are mainly quartz, mica, weathered feldspar and chlorite. [0003] The copper-molybdenum potential-regulated flotation separation process is a process for copper-molybdenum potential-regulated flotation separation using the principle that copper minerals are suppressed at l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/00B03D103/02
Inventor 陈勇宋永胜温建康李文娟
Owner 有研资源环境技术研究院(北京)有限公司
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