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Tungsten-molybdenum-silver multi-metal ore beneficiation process

A polymetallic ore and polymetallic technology, which is applied in the field of beneficiation process for processing tungsten-molybdenum-silver polymetallic ore, can solve the problems of low recovery rate and difficult recovery of wolframite, so as to reduce consumption, improve comprehensive utilization rate and reduce cost Effect

Inactive Publication Date: 2020-03-27
SHENYANG RES INST OF NONFERROUS METALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this process is that it is difficult to recover wolframite, which is easy to overgrind, and the recovery rate is low

Method used

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  • Tungsten-molybdenum-silver multi-metal ore beneficiation process

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Effect test

Embodiment 1

[0034] The processed ore raw ore contains WO 3 0.323%, Mo 0.088%, Ag 67.20g / t. After the raw ore is ground (-0.075mm 60% to 65%), the molybdenum rough concentrate is obtained by flotation; the molybdenum rough concentrate is re-grinded (-0.038mm 85% to 90%) and then selected. Using kerosene as the molybdenite collector, the molybdenum concentrate contains 47.58% molybdenum after one roughing, four times of beneficiation, and two times of sweeping, and the molybdenum recovery rate is 85.43%; the flotation tailings are divided into +0.4mm and - Two grades of 0.4mm, +0.4mm use jig re-election to obtain tungsten-silver mixed concentrate 1; jigging tailings are ground to -0.075mm, 70%~80% are returned to high-frequency sieve, and -0.4mm part is re-selected Obtain tungsten-silver mixed concentrate 2, and the equipment is a shaker. The tungsten-silver mixed concentrate 1 and the tungsten-silver mixed concentrate 2 are mixed, and then the silver is flotation, after one stage of gri...

Embodiment 2

[0036] The processed ore raw ore contains WO 3 0.308%, Mo0.091%, Ag 70.30g / t. After the raw ore is ground (-0.075mm 60% to 65%), the molybdenum rough concentrate is obtained by flotation; the molybdenum rough concentrate is re-grinded (-0.038mm 85% to 90%) and then selected. Using kerosene as the molybdenite collector, the molybdenum concentrate contains 47.62% molybdenum after one roughing, four times of beneficiation, and two times of sweeping, and the molybdenum recovery rate is 85.30%; the flotation tailings are divided into +0.4mm and - Two grades of 0.4mm, +0.4mm use jig re-election to obtain tungsten-silver mixed concentrate 1; jigging tailings are ground to -0.075mm, 70%~80% are returned to high-frequency sieve, and -0.4mm part is re-selected Obtain tungsten-silver mixed concentrate 2, and the equipment is a shaker. The tungsten-silver mixed concentrate 1 and the tungsten-silver mixed concentrate 2 are mixed, and then the silver is flotation, after one stage of grind...

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Abstract

The invention provides a tungsten-molybdenum-silver multi-metal ore beneficiation process. The beneficiation process comprises the steps that (1) tungsten-molybdenum-silver multi-metal ores are crushed, grinded and floated to prepare molybdenum rough concentrates; (2) the molybdenum rough concentrates are grinded and selected to obtain molybdenum concentrates; (3) molybdenum floatation tailings are classified and reselected to obtain tungsten-silver mixed concentrates; (4) the tungsten-silver mixed concentrates are grinded; and (5) silver is floated to prepare silver concentrates and tungstenconcentrates. The beneficiation process can prevent excessive grinding and excessive crushing of molybdenite and wolframite to gradually achieve the monomer dissociation to obtain the qualified molybdenum concentrates and tungsten concentrates under the precondition of guaranteeing the recovery rate; the floatation separation is performed after preparation of the tungsten-silver mixed concentratesthrough reselection, so that the ore flotation quantity is reduced, and the use level of flotation medicaments is reduced; and valuable elements of tungsten, molybdenum and silver in the ores can befully recovered to improve the comprehensive utilization rate of resources.

Description

technical field [0001] The invention relates to a beneficiation process for processing tungsten-molybdenum-silver polymetallic ore, which belongs to the technical field of non-ferrous metal ore beneficiation. Background technique [0002] The polymetallic sulfide ore containing tungsten, molybdenum and silver has many kinds of minerals, complex composition and low grade. Molybdenite and wolframite are brittle and easy to be crushed, and it is easy to adopt stage grinding and multi-stage separation processes; associated silver mainly exists in the form of independent silver minerals, most of which are distributed in its metal sulfide carrier, and are usually used The method of recovering its carrier mineral achieves the recovery of silver. Separation of polymetallic sulfide ore containing wolframite at home and abroad often adopts the process of preferentially selecting sulfide ore and flotation tailings to select tungsten. The traditional process is used to process tungste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B9/00
CPCB03B9/00
Inventor 孟宪瑜于雪高起鹏秦贵杰
Owner SHENYANG RES INST OF NONFERROUS METALS
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