A process for recovering tungsten from extremely low-grade tungsten-containing tailings

Abstract

The invention relates to a process for recovering tungsten from very low grade tungstenic tailings, and belongs to the technical field of metallic compound group extraction from ores or concentrates in a wet process. The process comprises grading of buffer pools, rough concentration of flannelette chutes, rough concentration of swing beds, fine concentrationof mongolian yurts, and scavenging of the swing beds. 2 buffer pools, 10-15 flannelette chutes, 2-4 mongolian yurts and 10-15 swing beds are selected in a matched manner. The mass percent of W03 in the processed very low grade tungstenic tailings is 0.04-0.08%. Through recovery of low grade tungsten in the tailings, high grade and high recovery rate can be obtained, the economic benefits of a concentrating mill, and the comprehensive utilization of resources can be realized.

Description

technical field [0001] The invention relates to a process for recovering tungsten from extremely low-grade tungsten-containing tailings, especially a method suitable for recovering tungsten from low-grade tungsten-containing tailings. Background technique [0002] With the continuous development of mines, more and more mine tailings have become a difficult problem for enterprises and countries. Tailings contain a large amount of heavy metals such as tungsten, molybdenum, bismuth, etc., which will not only pollute the soil, affect the normal growth of plants, affect the water body, destroy the ecosystem, but also cause a large loss of resources. [0003] As we all know, rare metals are important strategic resources of the country, and tungsten is a typical rare metal with extremely important uses and is a strategic metal. It is an important part of contemporary high-tech new materials. Electron optical materials, special alloys, new functional materials and organometallic co...

AI Technical Summary

Problems solved by technology

Therefore, the enrichment ratio of this extremely low-grade tungsten-containing tailings in the separation process (the concentrate and the WO in the tailings 3 Ratio of content) is difficult to increase, and secondly, the distribution of tungsten-containing minerals and gangue minerals is uneven, and the degree of dissociation of tungsten-containing minerals is different. Different sorting equipment and processes are required to sort tailings with different particle sizes. , these types of tungsten-containing tailings sorting technology is more difficult and the recovery cost is increased

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