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Low-grade scheelite in molybdenum floatation tailings

A molybdenum tailings, low-grade technology, applied in the field of recovery of low-grade scheelite, can solve the problems of unsatisfactory indicators, low concentrate grade, low total recovery rate, etc., to achieve small footprint and large equipment processing capacity , The effect of high equipment efficiency

Inactive Publication Date: 2009-04-29
CINF ENG CO LTD
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AI Technical Summary

Problems solved by technology

This method can initially recover the low-grade scheelite in the molybdenum tailings, but its total recovery rate is low, only 50-55%, the concentrate grade is low, only about 20%, and the energy consumption is high. Consumption up to 15.0kw.h, its indicators are not ideal

Method used

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  • Low-grade scheelite in molybdenum floatation tailings
  • Low-grade scheelite in molybdenum floatation tailings

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Embodiment Construction

[0033] The specific process is shown in Figures 1 and 2. First, it enters the desulfurization and separation system for molybdenum: the molybdenum tailings of the molybdenum separation plant flow to the pump pool 1 by itself, and the slurry is sent to the hydrocyclone 3 through the slurry pump 2, and the hydrocyclone 3 The grit flows to the ball mill 4. The ball mill 4, the slurry pump 2 and the cyclone 3 form a closed-circuit grinding cycle, so that the grinding particle size can meet the qualified requirements. The ore slurry with qualified particle size flows to the mixing tank 5 through the overflow of the hydrocyclone 3, and enters the desulfurization flotation column 6 for desulfurization flotation after stirring. The concentrate of the desulfurization flotation column 6 flows into the mixing tank 7, and enters the flotation machine 8 after being stirred, and the molybdenum rough concentration, five times of molybdenum concentration, and three times of molybdenum fine sw...

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Abstract

The invention discloses a recycling method of low grade white tungsten in molybdenum selection tailing, after molybdenum selection tailing is floated and desulfurized, white tungsten rougher flotation adopts one rougher flotation, one scavenging and one preconcentration to replace one rougher flotation, scavenging for three times and preconcentration for three times, and rough concentrate with about 1.2 percent of WO3 is obtained. The method reduces scavenging twice and preconcentration twice, the rougher flotation has high recovery rate which can achieve 75 percent, and is about 10 percent higher than the recovery rate of a flotation machine method; and the used device has high processing capacity and small occupied area, thus greatly reducing the operating personnel and labor intensity.

Description

technical field [0001] The invention relates to the field of smelting and chemical industry, in particular to a method for recovering low-grade scheelite from molybdenum beneficiation tailings. Background technique: [0002] Tungsten is a non-ferrous rare precious metal and an important strategic material, and a non-renewable mineral resource. Its uses are very extensive, involving industries such as steel, military industry, aerospace, electronics, electrical appliances, electric power and chemical industry, while my country's tungsten ore resources are very limited. The molybdenum tailings contain low-grade scheelite, but because the problems of the previous mineral processing methods have not been resolved, it can only be discarded in the tailings pond, and cannot be effectively recovered, wasting mineral resources. [0003] After continuous research and development, the process of recovering low-grade scheelite from molybdenum tailings has made some progress. Generally...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/00B03D1/004B03B1/04B03D101/02B03D101/04
Inventor 李晓健黄光洪马士强彭雪清
Owner CINF ENG CO LTD
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