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Beneficiation method for recycling scheelite from tungsten ore rich in mispickel

A beneficiation method and tungsten ore technology are applied in the field of beneficiation for recovering scheelite, which can solve the problems of low tungsten beneficiation recovery rate and the like

Inactive Publication Date: 2008-09-24
GUANGZHOU RES INST OF NON FERROUS METALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The beneficiation recovery rate of tungsten by oxidized paraffin soap flotation is low

Method used

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  • Beneficiation method for recycling scheelite from tungsten ore rich in mispickel
  • Beneficiation method for recycling scheelite from tungsten ore rich in mispickel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Embodiment 1: Tungsten ore raw ore contains WO 3 0.30%, As 2.86%. According to the pharmaceutical system listed in Table 1, after adding sodium carbonate and water glass to adjust the slurry, add the collector sulfated oleic acid soap, stir for 2 minutes, and go through 1 rough selection, 2 selections, and 3 sweeps to obtain white powder. Tungsten coarse concentrate containing WO 3 5.27%, recovery rate 86.47%.

Embodiment 2

[0010] Embodiment 2: Tungsten ore raw ore contains WO 3 0.36%, As 5.81%. According to the medicament system listed in Table 1, after adding sodium carbonate and water glass to adjust the slurry, add the collector sulfated oleic acid soap, stir for 5 minutes, and after 1 rough selection, 2 selections, and 2 sweeps, white powder is obtained. Tungsten coarse concentrate containing WO 3 4.97%, the recovery rate is 86.99%.

Embodiment 3

[0011] Embodiment 3: Tungsten ore raw ore contains WO 3 0.35%, As 4.82%. According to the medicament system listed in Table 1, after adding sodium carbonate and water glass to adjust the slurry, add the collector sulfated oleic acid soap, stir for 8 minutes, and through 1 rough selection, 2 selections, and 3 sweeps, white powder is obtained. Tungsten coarse concentrate containing WO 3 4.42%, the recovery rate was 89.04%.

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Abstract

The invention relates to an ore dressing method for recycling scheelite from tungsten ore which is rich in arsenopyrite. The method is characterized in that: (1) the flotation of sulphide ore is performed: the tungsten ore is crushed, ground and floated so as to obtain the sulphide ore and sulphide ore flotation tailing which are mainly composed of arsenopyrite; (2) the rough flotation of scheelite is performed: the sulphide ore flotation tailing is mixed with sodium carbonate and sodium silicate, then is added with a collector, namely, sulfating nascent soap; the scheelite concentrate and the coarse ore and the scheelite coarse flotation tailing are obtained by stirring, rough flotation, fine flotation and scavenging. The method provided by the invention is characterized in that the process is simple, the beneficiation reagent has low cost, the recovery rate of tungsten is high, and scheelite concentrate and coarse ore with the recovery rate of tungsten ranging from 80 to 90 percent and containing WO3 which accounts for 4 to 10 percent is obtained.

Description

technical field [0001] The invention relates to a mineral processing method, in particular to a mineral processing method for recovering scheelite from tungsten ore rich in arsenopyrite. Background technique [0002] Arsenopyrite is symbiotic with pyrite, scheelite, wolfite, diopside, tremolite, garnet, fluorite, quartz, sericite, calcite and other minerals. Separating arsenopyrite and scheelite from tungsten ore has always been considered a difficult problem in mineral processing. The presence of arsenopyrite in tungsten concentrate products not only affects the quality of concentrate products and the subsequent metallurgical treatment process, but also unfavorable sales price and sales, and brings serious environmental problems at the same time. The in-depth study on the removal of arsenopyrite from tungsten ore is of great significance no matter in terms of environmental protection or improving the benefit of dressing and smelting. At present, the recovery of associated...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/00B03B1/00B03D1/012B03D101/02B03D103/02
Inventor 周晓彤邓丽红何晓娟郑少冰
Owner GUANGZHOU RES INST OF NON FERROUS METALS
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