Comprehensive recovery and beneficiation process for wolframite and scheelite and associated valuable metals of wolframite and scheelite

A technology of valuable metals, black and white tungsten, applied in the field of beneficiation technology, can solve the problems of low recovery rate of tungsten ore and large dosage of chemicals, and achieve the effects of improving comprehensive utilization rate, low production cost and simple process flow

Active Publication Date: 2021-06-04
WUHAN UNIV OF TECH
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  • 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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  • Comprehensive recovery and beneficiation process for wolframite and scheelite and associated valuable metals of wolframite and scheelite
  • Comprehensive recovery and beneficiation process for wolframite and scheelite and associated valuable metals of wolframite and scheelite
  • Comprehensive recovery and beneficiation process for wolframite and scheelite and associated valuable metals of wolframite and scheelite

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 wolframite and scheelite and associated valuable metals of wolframite and scheelite. The comprehensive recovery and beneficiation process comprises the following steps: tungsten-molybdenum-copper polymetallic ore is crushed, ground and floated to obtain copper-molybdenum mixed rough concentrate and copper-molybdenum flotation tailings; the copper-molybdenum mixed rough concentrate is subjected to ore grinding and molybdenum floating and copper inhibiting separation, and molybdenum concentrate and copper concentrate are obtained; the copper-molybdenum flotation tailings are graded, and oversize products and undersize products are obtained; the oversize product is subjected to gravity separation, and gravity separation rough concentrate and gravity separation tailings are obtained; the reselected rough concentrate is subjected to ore grinding and flotation, and tungsten concentrate 1 is obtained; and the undersize products and the gravity separation tailings are subjected to ore grinding and flotation, and tungsten concentrate 2 is obtained. According to the beneficiation process, over-crushing of the ore can be effectively avoided, monomer dissociation is gradually achieved, and qualified tungsten concentrate, molybdenum concentrate and copper concentrate are obtained on the premise that the recovery rate is guaranteed, so that valuable elements in the ore are fully recovered, and the comprehensive utilization rate of resources is increased.

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