Mineral dressing method for black and white tungsten minerals

A beneficiation method, black and white tungsten technology, applied in flotation, solid separation, etc., can solve the problem of low grade of black and white tungsten mixed coarse concentrate, large amount of collector CF and activator, low yield of black and white tungsten mixed rough concentrate To achieve the effect of improving the comprehensive utilization rate of mine resources, high grade of tungsten coarse concentrate and high tungsten recovery rate

Inactive Publication Date: 2005-03-30
GUANGZHOU RES INST OF NON FERROUS METALS
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Problems solved by technology

However, the amount of collector CF and activator used in this method is relatively large, the collector price is relatively expensive, the cost of reagents is high, the yield of black and white tungsten mixed rough concentrate is relatively high, and its fluorite content is high. not too high

Method used

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  • Mineral dressing method for black and white tungsten minerals

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Embodiment Construction

[0011] Crush the raw ore and grind it to -0.074mm, accounting for 80-85%. After removing the magnetite by magnetic separation and flotation to remove sulfide minerals, add water glass, aluminum sulfate, lead nitrate, and stir for 1-10 minutes; add and collect Benzohydroxamic acid, sulfated oleic acid soap or Tal soap and kerosene, stirred for 1-10 minutes; mixed flotation of black and white tungsten in neutral pulp medium, after 1 roughing, 2-5 times of concentration , 2-3 times of sweeping, the pH value of the tungsten flotation pulp is 6.5-8.5, and the concentration of the roughing pulp is 35-50%.

[0012] The floating sulfide tailings of Examples 1-4 contain WO 3 0.53%-0.55%, CaF 2 16-25%, of which the ratio of black and white tungsten is about 2.5:7.5.

[0013] The floating sulfide tailings of Examples 5-8 contain WO 3 0.63%-0.65%, CaF 2 16-25%, of which the ratio of black and white tungsten is about 4.0:6.0.

[0014] The floating sulfide tailings of Examples 9-10...

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Abstract

A technology for dressing the mixture of wolframite and scheelite incldues magnetic separation to remove iron, floatation for removing sulfide ore, adding water glass, aluminium sulfate and lead nitrate for regulating sludge, adding benzhdroxyoximic acid, sulfated oleic soap and kerosene, and combined floatation.

Description

technical field [0001] The invention relates to a mineral separation method, in particular to a mineral beneficiation method. Background technique [0002] Flotation and separation of black and white tungsten minerals from sulfide ore, magnetite, wolframite, scheelite, garnet, fluorite, calcite, quartz, feldspar, mica and other complex polymetallic ores has always been a difficult mineral processing subject . After removal of magnetite and sulfide minerals, effective separation is extremely difficult due to the similar surface planktonic properties of tungsten minerals and calcium gangue minerals such as fluorite. At present, there are many methods studied: fatty acid lime method, fatty acid caustic soda method, and CF method or copper iron spirit method. [0003] The principle process flow is: for usually containing WO 3 0.2%-2.0%, wherein the ratio of black and white tungsten is 1:9-9:1. After the raw ore is crushed and ground, the tailings do not need to add acid afte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/00B03D1/018
Inventor 张先华张忠汉戴子林林日孝周晓彤
Owner GUANGZHOU RES INST OF NON FERROUS METALS
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