Selective flocculation-column flotation recovery method and system of micro-fine particle molybdenum cleaner tailings

Abstract

The invention discloses a selective flocculation-column flotation recovery method and system of micro-fine particle molybdenum cleaner tailings. The method includes the following steps that: a dispersing agent and a collecting agent are added, so that first stirring and pulp conditioning is performed, and therefore, mineral particles can be fully dispersed, and the surface hydrophobicity of target mineral particles can be improved; a flocculating agent and a foaming agent are added, so that second stirring and pulp conditioning is performed, and therefore, the target mineral particles can be flocculated selectively; the cyclonic-static fine bubble floatatation column is utilized to perform copper-molybdenum mixed floating, and a roughing-concentration-scavenging floatation process is adopted, and as a result, copper-molybdenum mixed floated concentrates and tailings can be obtained; an inhibitor is added in the copper-molybdenum mixed floated concentrates, so that third stirring and pulp conditioning is performed; and the cyclonic-static fine bubble floatatation column is utilized to perform copper-molybdenum separation, and a roughing-concentration floatation process is adopted, so that molybdenum concentrates and copper concentrates can be obtained. According to the selective flocculation-column flotation recovery method and system of micro-fine particle molybdenum cleaner tailings of the invention adopted, two kinds of micro-fine particle separation ways, namely, selective flocculation and column flotation, are adopted to recover molybdenum and copper in molybdenum concentrates and tailings, and therefore, the comprehensive utilization rate of mineral resources can be improved, and the selective flocculation-column flotation recovery method and system have excellent 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...

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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.

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