Beneficiation method for recovering wolframite from tailings

A mineral processing method and wolframite technology, which is applied in the mineral processing field of recycling wolframite, can solve problems such as difficult to achieve safety and environmental protection, environmental pollution, pipeline and equipment corrosion, and achieve the effect of reducing operating costs and avoiding environmental pollution

Inactive Publication Date: 2020-02-21
CHANGCHUN GOLD RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a beneficiation method for recovering wolframite from tailings, so as to solve the problems of easy corrosion of pipelines and equipment, serious environmental pollution, and difficulty in meeting relevant national standards for safety and environmental protection

Method used

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  • Beneficiation method for recovering wolframite from tailings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Described method comprises the following steps:

[0029] (1) Grinding wolframite tailings to -0.075mm content is 70%;

[0030] (2) Under the magnetic field intensity of 0.1T, carry out magnetic separation to step (1) gain, obtain weak magnetic concentrate and weak magnetic tailings;

[0031] (3) under the magnetic field intensity of 0.8T, carry out magnetic separation to the weak magnetic tailings gained in step (2), obtain strong magnetic concentrate and non-magnetic tailings;

[0032] (4) classifying the strong magnetic concentrate obtained in step (3), being divided into two grades of +0.0515mm and -0.051mm, and getting the coarse grade wherein;

[0033] (5) carry out re-election to step (4) gain, during re-election, first carry out rough selection, obtain rough selection concentrate, rough selection ore and rough selection tailings, when sweeping, the selected raw material is rough selection, Obtain the scavenging concentrate and scavenging tailings, combine the r...

Embodiment 2

[0041] Described method comprises the following steps:

[0042] (1) Grinding wolframite tailings to -0.075mm content is 80%;

[0043] (2) Under the magnetic field intensity of 0.15T, carry out magnetic separation to step (1) gain, obtain weak magnetic concentrate and weak magnetic tailings;

[0044] (3) Under the magnetic field intensity of 1.1T, carry out magnetic separation to the weak magnetic tailings gained in step (2), obtain strong magnetic concentrate and non-magnetic tailings;

[0045](4) classify the strong magnetic concentrate obtained in step (3), and divide it into two grades of +0.051~0.075mm and -0.051~-0.075mm, and get the coarse grade;

[0046] (5) carry out re-election to step (4) gain, during re-election, first carry out rough selection, obtain rough selection concentrate, rough selection ore and rough selection tailings, when sweeping, the selected raw material is rough selection, Obtain the scavenging concentrate and scavenging tailings, combine the roug...

Embodiment 3

[0054] Described method comprises the following steps:

[0055] (1) Grinding the wolframite tailings until the content of -0.075mm is 90%;

[0056] (2) Under the magnetic field intensity of 0.2T, carry out magnetic separation to step (1) gain, obtain weak magnetic concentrate and weak magnetic tailings;

[0057] (3) Under the magnetic field strength of 1.4T, carry out magnetic separation to the weak magnetic tailings gained in step (2), obtain strong magnetic concentrates and non-magnetic tailings;

[0058] (4) classifying the strong magnetic concentrate obtained in step (3), being divided into two grades of +0.075mm and -0.075mm, and getting the coarse grade wherein;

[0059] (5) carry out re-election to step (4) gain, during re-election, first carry out rough selection, obtain rough selection concentrate, rough selection ore and rough selection tailings, when sweeping, the selected raw material is rough selection, Obtain the scavenging concentrate and scavenging tailings, ...

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Abstract

The invention relates to a beneficiation method for recovering wolframite from tailings, and belongs to the technical field of beneficiation recovery. The beneficiation method for recovering wolframite from tailings comprises the steps: (1) grinding wolframite tailings until the -0.075mm content is 70-90%; (2) performing magnetic separation on the materials obtained in the step (1) under the magnetic field intensity of 0.1-0.2T to obtain weak magnetic concentrate and weak magnetic tailings; (3) performing magnetic separation on the weak magnetic tailings obtained in the step (2) under the magnetic field intensity of 0.8-1.4T to obtain strong magnetic concentrate and non-magnetic tailings; (4) classifying the strong magnetic concentrate obtained in the step (3) into two grades of +0.051-0.075 mm, and -0.051-0.075 mm, and taking the coarse fraction therein; and (5) carrying out gravity separation on the materials obtained in the step (4), firstly carrying out roughing separation to obtain roughed concentrate, roughed middlings and roughed tailings, carrying out scavenging separation, wherein the feeding raw materials are the roughed middlings to obtain scavenged concentrate and scavenged tailings, and combining the roughed concentrate with the scavenged concentrate to obtain gravity separation wolframite concentrate. According to the beneficiation method for recovering wolframitefrom tailings, a flotation process which can be adopted in conventional wolframite beneficiation recovery is avoided, any chemical agent does not need to be added, and secondary pollution to the environment is avoided.

Description

technical field [0001] The invention relates to the technical field of beneficiation and recovery, in particular to a beneficiation method for recovering wolframite from tailings. Background technique [0002] With the continuous development of my country's economy, a large number of mineral resources have been developed and utilized, and the resources are becoming increasingly exhausted. The recycling of useful components in tailings as a secondary resource can not only effectively alleviate the shortage of resources, improve resource utilization efficiency, but also reduce the storage area of ​​tailings, reduce the pollution of heavy metal ions in tailings to the environment, and avoid landslides to the greatest extent. , Collapse and other disasters. Black tungsten is a non-metallic aluminosilicate mineral widely used in materials industry, chemical industry, paint industry, cosmetics and other industries. The tailings of most metamorphic rock metal mines contain a larg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00B03B9/06B03C1/30
CPCB03B7/00B03B9/06B03C1/30Y02W30/52
Inventor 高歌王艳王铜马冬梅孙景
Owner CHANGCHUN GOLD RES INST
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