Benefication method for concentrating fine tungsten ore in tailings by warming scheelite

A beneficiation method and fine-grained technology, which is applied in the field of reclaiming fine-grained tungsten ore, can solve the problems of no sorting, poor sorting effect, unfavorable flotation of black and white tungsten minerals, etc., and achieve simple process flow and beneficiation The effect of stable process and low chemical cost
CN101579653AInactive Publication Date: 2009-11-18GUANGZHOU RES INST OF NON FERROUS METALS
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGZHOU RES INST OF NON FERROUS METALS
Publication Date
2009-11-18
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a benefication method for concentrating fine tungsten ore in tailings by warming scheelite, which is characterized by comprising the following steps in turn: performing desliming and reagent removal; condensing concentrate after desliming and reagent removal, which is added with water, into 26 to 44 percent of pulp density, and controlling the pH of pulp at about 8.5; performing floatation on the fine tungsten ore; adding regulators of sodium fluosilicate, soluble glass, aluminium sulphate and lead nitrate; and adding collecting agents of benzohydroxamic acid and sulfated oleate soap, and performing rough concentration, concentration and scavenging to obtain the fine tungsten ore concentration and fine tungsten tailings. The method has simple recovery process flow, stable benefication process, high tungsten recovery rate, and low cost of reagents; the used benefication reagents do not pollute environment; and tailing water can meet the emission requirement. The method is suitable for the fine tungsten ore, of which the WO3 content is 0.95 to 5.10 percent, the ratio of peanut ore to the scheelite is between 1:9 to 9:1, and the occupancy rate of WO3 metal smaller than 30 microns is more than or equal to 60 percent, and which is subjected to concentration of the tailings by warming the scheelite and then reconcentration of the tailings by a shaker.
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Description

technical field

[0001] The invention relates to a beneficiation method for recovering fine-grained tungsten ore from scheelite heating and concentrating tailings. Background technique

[0002] my country is rich in tungsten resources, ranking first in the world in both reserves and output. In the symbiotic ore of scheelite and wolframite, the ratio of scheelite to wolframite is 1:9~9:1. At present, the beneficiation method of black and white tungsten symbiotic ore is mixed flotation to obtain black and white tungsten mixed concentrate, and scheelite heated and concentrated to obtain scheelite concentrate and scheelite heated and selected tailings, and scheelite heated and selected tailings The ore is re-selected by shaking table to obtain coarse-grained black tungsten concentrate and fine-grained tungsten ore in scheelite heating flotation tailings, and fine-grained tungsten ore in scheelite heating flotation tailings is fine-grained Fine-grained tungsten concentrates and ...

Claims

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