A selective flocculation-column flotation recovery method and system for fine-grained molybdenum beneficiation tailings

A fine-grained and selective technology, applied in selective deposition, flotation, solid separation, etc., can solve problems such as complex process, high cost, and large pollution, and achieve low operating cost, efficient separation, and good economic benefits and the effect of social benefits

Inactive Publication Date: 2017-11-14
CHINA UNIV OF MINING & TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the above-mentioned chemical methods generally have the disadvantages of complex process, large pollution and high cost.

Method used

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  • A selective flocculation-column flotation recovery method and system for fine-grained molybdenum beneficiation tailings
  • A selective flocculation-column flotation recovery method and system for fine-grained molybdenum beneficiation tailings
  • A selective flocculation-column flotation recovery method and system for fine-grained molybdenum beneficiation tailings

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with specific examples.

[0030] Such as figure 2 Shown is the system of the present invention, including the first mixing tank 1 and the second mixing tank 2 connected in sequence, and the second mixing tank 2 is connected with the first roughing cyclone-static microbubble flotation through the first feeding pump 3 Column 4, the first roughing cyclone-static micro-bubble flotation column 4 is provided with a first roughing circulation pump 8 between the top and the bottom, the first roughing cyclone-static micro-bubble flotation column 4 and the first fine Swirl flow-static microbubble flotation column 5 is connected, also connected with scavenging swirl flow-static microbubble flotation column 7 by the second feed pump 6, sweeping swirl flow-static microbubble flotation column 7 top and A scavenging circulation pump 10 is arranged between the bottoms, and the scavenging cyclone-static microbubble f...

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Abstract

The invention discloses a selective flocculation-column flotation recovery method and system for fine-grained molybdenum concentrating tailings. The method is as follows: adding a dispersant and a collector to carry out the first stirring and pulping, so that the ore particles are fully dispersed And improve the hydrophobicity of the surface of the target ore particles; add flocculants and foaming agents for the second stirring and slurrying, so that the target ore particles are selectively flocculated; use the cyclone-static micro-bubble flotation column to carry out copper-molybdenum mixed flotation, using a Coarse-finish-sweeping flotation process to obtain copper-molybdenum mixed flotation concentrate and tailings; in copper-molybdenum mixed flotation concentrate, add inhibitors for third stirring and pulping; use cyclone-static micro-bubble flotation column Separation of copper and molybdenum is carried out, and a rough-fine flotation process is adopted to obtain molybdenum concentrate and copper concentrate. The present invention effectively combines two fine particle separation methods of selective flocculation and column flotation, recycles molybdenum and copper in molybdenum concentrate tailings, improves the comprehensive utilization rate of mineral resources, and has good economic benefits and social benefits.

Description

technical field [0001] The invention belongs to the technical field of secondary utilization of mineral resources, and in particular relates to a selective flocculation-column flotation recovery method and system for fine-grained molybdenum concentrating tailings. Background technique [0002] As an important strategic metal, molybdenum is widely used in the fields of metallurgy, machinery, chemical industry, national defense and electronics, and has become one of the indispensable raw materials for the development of modern high technology. In the molybdenum concentration process, there is a common problem of high molybdenum content in the tailings, resulting in the loss of a large amount of molybdenum metal from the molybdenum concentration tailings. If it can be recycled, it will not only help to improve the comprehensive utilization rate of resources and increase the economic benefits of enterprises, but also be conducive to environmental protection. [0003] Molybdenum...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D3/06B03D1/14B03D101/02B03D101/04B03D101/06B03D103/02
Inventor 马子龙曹亦俊廖寅飞张海军
Owner CHINA UNIV OF MINING & TECH
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