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A comprehensive recovery and beneficiation process of black and white tungsten ore and its associated valuable metals

A technology of valuable metals, black and white tungsten, applied in the direction of solid separation, chemical instruments and methods, wet separation, etc., can solve the problems of low recovery rate of tungsten ore, large dosage of chemicals, etc., to improve comprehensive utilization rate and production cost The effect of low cost and simple process flow

Active Publication Date: 2022-05-10
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, it is necessary to provide a comprehensive recovery ore dressing process of black and white tungsten ore and its associated valuable metals, which is used to solve the problem of low recovery rate of fine-grained tungsten ore and the dosage of medicament big technical problem

Method used

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  • A comprehensive recovery and beneficiation process of black and white tungsten ore and its associated valuable metals
  • A comprehensive recovery and beneficiation process of black and white tungsten ore and its associated valuable metals
  • A comprehensive recovery and beneficiation process of black and white tungsten ore and its associated valuable metals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] An ore body in Jiangxi, the ore contains 0.119% tungsten, 0.1% molybdenum, and 0.2% copper, and the raw ore dosage is 300g.

[0043] The beneficiation process includes the following steps:

[0044] (1) After the ore is crushed, the ore is ground to a fineness of -0.075mm, accounting for 55%, and then a copper-molybdenum mixed coarse concentrate and copper-molybdenum flotation tailings are obtained through a rough separation; wherein, the concentration of the flotation pulp is 30%; The molybdenum collector is butyl xanthate and thiocarbamate, the dosage is 85g / t and 15g / t respectively; the foaming agent is methyl isobutyl carbinol, the dosage is 25g / t; the gangue inhibitor is water glass , the dosage is 1200g / t;

[0045] (2) Grind the above-mentioned copper-molybdenum mixed coarse concentrate until the fineness is -0.038mm, which accounts for 77%, and then use floating molybdenum to suppress copper to separate. Copper concentrate was obtained; among them, the concentra...

Embodiment 2

[0051] In an ore body in Inner Mongolia, the ore contains 0.13% tungsten, 0.09% molybdenum, and 0.30% copper, and the raw ore consumption is 300g.

[0052] The beneficiation process includes the following steps:

[0053] (1) After the ore is crushed, the ore is ground to a fineness of -0.075mm, accounting for 60%, and then a copper-molybdenum mixed coarse concentrate and copper-molybdenum flotation tailings are obtained through a rough separation; wherein, the concentration of the flotation pulp is 30%; The molybdenum collector is butyl xanthate and thiocarbamate, the dosage is 80g / t and 20g / t respectively; the foaming agent is methyl isobutyl carbinol, the dosage is 30g / t; the gangue inhibitor is water glass , the dosage is 1000g / t;

[0054] (2) Grind the above-mentioned copper-molybdenum mixed coarse concentrate until the fineness is -0.038mm, accounting for 80%, and then use floating molybdenum to suppress copper to separate, after a rough separation, four times of concent...

Embodiment 3

[0060] In a certain ore body in Liaoning, the ore contains 0.113% tungsten, 0.082% molybdenum, and 0.35% copper, and the raw ore consumption is 300g.

[0061] The beneficiation process includes the following steps:

[0062] (1) After the ore is crushed, it is ground to a fineness of -0.075mm, accounting for 50%, and then through a rough separation to obtain copper-molybdenum mixed coarse concentrate and copper-molybdenum flotation tailings; wherein, the concentration of flotation pulp is 35%; The molybdenum collector is butyl xanthate and thiocarbamate, the dosage is 90g / t and 10g / t respectively; the foaming agent is methyl isobutyl carbinol, the dosage is 20g / t; the gangue inhibitor is water glass , the dosage is 1300g / t;

[0063] (2) Grind the above-mentioned copper-molybdenum mixed coarse concentrate until the fineness is -0.038mm, accounting for 75%, and then use floating molybdenum to suppress copper to separate, after a rough separation, four times of concentration to o...

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Abstract

The invention discloses a comprehensive recovery and beneficiation process for black and white tungsten ore and its co-associated valuable metals. Molybdenum flotation tailings; the above-mentioned copper-molybdenum mixed rough concentrate is then separated by grinding and floating molybdenum and copper suppression to obtain molybdenum concentrate and copper concentrate; the above-mentioned copper-molybdenum flotation tailings are classified to obtain oversize and sieve The bottom material; the above-mentioned oversize material is re-selected to obtain gravity-selected coarse concentrate and gravity-selected tailings; the above-mentioned gravity-selected rough concentrate is then subjected to grinding and flotation to obtain tungsten concentrate 1; the above-mentioned under-screen material is obtained Grinding and flotation are carried out with the above gravity separation tailings to obtain tungsten concentrate 2. The beneficiation process of the invention can effectively avoid the over-grinding of the ore, gradually realize the dissociation of monomers, obtain qualified tungsten concentrate, molybdenum concentrate and copper concentrate under the premise of ensuring the recovery rate, so as to fully recover the ore in the ore. Valuable elements, improve the comprehensive utilization of resources.

Description

technical field [0001] The invention relates to the technical field of beneficiation technology, in particular to a comprehensive recovery and beneficiation process of black and white tungsten ore and its associated valuable metals. Background technique [0002] High melting point, high specific gravity and high hardness are important properties of tungsten. Tungsten is one of the irreplaceable basic materials of the national economy and modern national defense, and is an important strategic material widely used in important fields such as aerospace, machinery manufacturing, petroleum, new materials, and national defense industry. Therefore, all countries have attached great importance to the development and utilization of tungsten resources. my country's tungsten resource reserves account for about 60% of the world's total, but the types of tungsten deposits are complex and diverse, mainly scheelite and wolframite symbiotic ore, mostly fine-grained embedded type, rich ore,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B7/00
CPCB03B7/00
Inventor 杨思原王欠欠刘诚徐艳玲
Owner WUHAN UNIV OF TECH