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Beneficiation method for black and white tungsten fine deposit

A beneficiation method, the technology of black and white tungsten, applied in flotation, solid separation, etc., can solve the problems of low recovery rate and achieve the effects of low cost of chemicals, high recovery rate of tungsten, and simple recovery process

Inactive Publication Date: 2008-09-24
广东省资源综合利用研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When this method is used for black and white tungsten mixed flotation, the black and white tungsten mixed flotation concentrate WO 3 The content is similar, but the recovery rate is lower

Method used

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  • Beneficiation method for black and white tungsten fine deposit
  • Beneficiation method for black and white tungsten fine deposit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Black and white tungsten fine mud contains WO 3 0.37%, less than 30 micron particle size WO 3 The metal occupancy rate is 67%, and the ratio of black and white tungsten is 6:4. The black and white tungsten fine mud is deslimed by gravity separation, and the obtained gravity concentrate is concentrated to a concentration of 35% by a thickener, and then sulfide ore flotation is carried out. Sulfide ore flotation tailings were added with adjusting agents sodium carbonate, water glass, aluminum sulfate and lead nitrate according to the reagent system in Table 1, and stirred for 8 minutes. After adding collector sulfated oleic acid soap and stirred for 6 minutes, mixed flotation of black and white tungsten was carried out. After 1 rough selection, 2 selections, and 2 scans, the WO content is obtained. 3 8.29% black and white tungsten mixed flotation concentrate, the recovery rate is 75.58%.

Embodiment 2

[0015] Black and white tungsten fine mud contains WO 3 0.3%, less than 30 micron particle size WO 3 The metal occupancy rate is 73%, of which the black and white tungsten ratio is 6:4. The black and white tungsten fine mud is deslimed by gravity separation, and the gravity separation concentrate obtained is concentrated to a concentration of 33% by a thickener, and then sulfide ore flotation is carried out. Sulfide ore flotation tailings according to the pharmaceutical system in Table 1, add regulator sodium carbonate, water glass, aluminum sulfate, lead nitrate, stir for 6 minutes, add collector sulfated oleic acid soap and stir for 7 minutes, then mix black and white tungsten Flotation, after 1 roughing, 3 times of fine selection, 2 times of sweeping, to get the WO containing 3 15.13% black and white tungsten mixed flotation concentrate, the recovery rate is 77.59%.

Embodiment 3

[0017] Black and white tungsten fine mud contains WO 3 0.21%, less than 30 micron particle size WO 3 The metal occupancy rate is 81%, and the black and white tungsten ratio is 5:4. The black and white tungsten fine mud is first deslimed by gravity separation, and the obtained gravity concentrate is concentrated to a concentration of 30% by a thickener, and then subjected to sulfide ore flotation. Sulfide ore flotation tailings according to the pharmaceutical system in Table 1, add regulator sodium carbonate, water glass, aluminum sulfate, lead nitrate, stir for 10 minutes, add collector sulfated oleic acid soap, after stirring for 5 minutes, black and white tungsten Mixed flotation, after 1 roughing, 2 sweeps and 2 refinements, 10.63% WO was obtained 3 Black and white tungsten mixed flotation concentrate with a recovery rate of 73.60%.

[0018] It can be seen from Table 1 that for 0.10-0.50% WO 3 , less than 30 micron particle grade WO 3 Metal occupancy rate ≥ 60%, three ...

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Abstract

The invention relates to an ore dressing method for black-and-white tungsten fine deposit. The method is characterized in that: (1) gravity concentrate and gravity tailings are obtained by gravity desliming; (2) sulphide concentrate and sulphide ore flotation tailing are obtained by sulphide flotation; (3) the mixed flotation of black-and-white tungsten is performed, the sulphide ore flotation tailing is added with a regulator such as sodium carbonate, sodium silicate, aluminum sulfate, and lead nitrate, and is also added with a collector such as sulfating nascent soap; black-and-white tungsten mixed flotation concentrate and black-and-white mixed flotation tailing are obtained after one-time rough flotation, two or three times of fine flotation and two or three times of scavenging. The method provided by the invention is characterized in that the recovery process of the black-and-white tungsten fine deposit is simple, the flotation process of mixed black-and-white tungsten is stable, the recovery rate of tungsten is high and the cost of the dose is low. The method is suitable for the black-and-white tungsten fine deposit of which the content WO3 ranges from 0.10 to 0.50 percent, the WO3 is less than 30 micrometers and metals account for no less than 60 percent.

Description

technical field [0001] The invention relates to a beneficiation method for recovering black and white tungsten minerals from black and white tungsten fine mud. Background technique [0002] my country is rich in tungsten resources, and its reserves and output rank first in the world. At present, the key to the total recovery rate of tungsten in various tungsten processing plants is the recovery of tungsten fine sludge. my country's tungsten fine mud has the characteristics of high yield, high metal content, fine particle size, etc., and generally accounts for 10-15% of the original ore volume of Longlong. WO 3 Content 0.15~0.5%, WO 3 The amount of metal accounts for the total WO of the Long ore 3 15-20% of the total, WO in fine mud less than 74 microns 3 WO with a metal occupancy rate of 85-99% and a particle size of less than 30 microns 3 The metal occupancy rate exceeds 60%, and the separation effect of gravity beneficiation is poor at the particle size of less than 30...

Claims

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Application Information

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IPC IPC(8): B03D1/00
Inventor 周晓彤邓丽红管则皋罗传胜
Owner 广东省资源综合利用研究所
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