A kind of beneficiation method for separating rare metal concentrate and quartz feldspar concentrate

A technology of rare metals and mineral processing methods, applied in chemical instruments and methods, solid separation, wet separation, etc., can solve the problems of difficult development, low recovery rate, complex mineral composition, etc., achieve low cost of mineral processing and increase recovery rate , The effect of improving resource utilization

Inactive Publication Date: 2020-05-22
李梅 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Taking a complex polymetallic mine as an example, it contains various rare metal resources such as uranium, niobium, tantalum, rare earth, beryllium, zirconium, etc. The mineral composition is complex, the content of rare metal elements is low, and it is difficult to develop. , still failed to realize the development and utilization of polymetallic ore
The main reason is that polymetallic ores are rich in many types of valuable elements, including more than 20 industrially usable elements such as uranium, niobium, tantalum, rare earth, beryllium, and zirconium. The occurrence states of these elements are scattered, and various minerals The valuable elements contained in each other are serious, resulting in the inability to obtain a single, high-grade rare metal concentrate
Summarizing the results of mineral processing research in the past 40 years, they all aim to obtain three products: rare earth concentrate, niobium concentrate and zirconium concentrate, but these three products all have problems of low grade and low recovery rate, and the amount of tailings Large, accounting for 90% of the original ore
[0004] In addition, polymetallic ores contain high thorium and uranium content, which are radioactive ores. If the traditional beneficiation process for obtaining the above three kinds of concentrate products is adopted, the radioactivity of the concentrate and tailings will exceed the standard, and the discharge of a large number of radioactive tailings will cause Potential environmental and safety hazards

Method used

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  • A kind of beneficiation method for separating rare metal concentrate and quartz feldspar concentrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] With the rare metal zirconium, uranium, niobium, beryllium, rare earth, titanium mineral total amount as 5.0%, the polymetallic ore with quartz feldspar content of 85.0% as raw material ore, using the process method of the present invention, such as figure 1 As shown, the following process steps are carried out:

[0038] (1) Take the polymetallic ore whose particle size is -0.5mm and account for more than 50%, carry out one stage of shaker gravity separation, obtain one stage of gravity separation concentrate and one stage of gravity separation tailings; the condition of the first stage of shaker gravity separation is 30% , the mass ratio of the first section of gravity separation concentrate and one section of gravity separation tailings is 2:98;

[0039] (2) Grinding the one-stage gravity-selection tailings described in step (1) until the particle size is -0.1mm, the weight percentage accounts for more than 80%, and carrying out two-stage shaker gravity separation to ...

Embodiment 2

[0045] With the rare metal zirconium, uranium, niobium, beryllium, rare earth, titanium mineral total amount as 8.65%, the polymetallic ore with quartz feldspar content 78.30% as raw material ore, utilize the process method of the present invention to carry out the following process steps:

[0046] (1) Take the polymetallic ore whose particle size is -0.5mm and account for more than 85%, and carry out one stage of shaking table gravity separation to obtain one stage of gravity separation concentrate and one stage of gravity separation tailings; the condition of said one stage of shaking table gravity separation is ore pulp concentration 10%, the mass ratio of the first stage of gravity separation concentrate and the first stage of gravity separation tailings is 1.8:98.2;

[0047] (2) Grinding the one-stage gravity-selection tailings described in step (1) until the particle size is -0.1mm, the weight percentage accounts for more than 85%, and carrying out two-stage shaker gravit...

Embodiment 3

[0053] With the rare metal zirconium, uranium, niobium, beryllium, rare earth, titanium mineral total amount as 10.25%, the polymetallic ore with quartz feldspar content 82.67% as raw material ore, utilize the process method of the present invention to carry out the following process steps:

[0054] (1) Take the polymetallic ore whose particle size is -0.5mm and account for more than 70%, carry out one stage of shaking table gravity separation, obtain one stage of gravity separation concentrate and one stage of gravity separation tailings; the condition of said one stage of shaking table gravity separation is the concentration of ore pulp 30%, the mass ratio of the first stage of gravity separation concentrate and the first stage of gravity separation tailings is 5:95;

[0055] (2) Grinding the one-stage gravity-selection tailings described in step (1) until the particle size is -0.1mm, the weight percentage accounts for more than 80%, and carrying out two-stage shaker gravity ...

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Abstract

The invention relates to a beneficiation method for separating rare metal concentrate and quartz feldspar concentrate. Polymetallic ore is subjected to gravity separation by a shaking table, and gravity concentrate, secondary gravity concentrate, gravity middling and gravity tailings are obtained; the gravity concentrate is subjected to strong magnetic separation, strong magnetic concentrate and strong magnetic tailings are obtained, wherein the strong magnetic concentrate is rare polymetallic bulk concentrate containing uranium, niobium, beryllium, rare earth and titanium, and the strong magnetic tailings are zirconium concentrate; and gravity middling is subjected to strong magnetic separation, strong magnetic concentrate and strong magnetic tailings are obtained, wherein the strong magnetic tailings are the quartz feldspar concentrate. According to the method, the recovery rate of rare metal mineral of the polymetallic ore can be remarkably improved to 70% or above, in addition, quartz feldspar which originally serves as tailings is recovered in a concentrate product mode, the resource utilization rate is greatly increased, and the method is free of any beneficiation reagents and has the remarkable economic and environmental benefits.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and in particular relates to a mineral processing method for separating rare metal concentrates and quartz feldspar concentrates. Background technique [0002] my country's development from the current stage to developed countries still needs a lot of resources to support it, especially rare metal mineral resources. Increasing the development and utilization of my country's poor ore and complex mineral resources is to expand my country's mineral resources and promote the development of mining circular economy. Foundation. [0003] Taking a complex polymetallic mine as an example, it contains various rare metal resources such as uranium, niobium, tantalum, rare earth, beryllium, zirconium, etc. The mineral composition is complex, the content of rare metal elements is low, and it is difficult to develop. , still failed to realize the development and utilization of polymetallic ore. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B7/00
CPCB03B7/00
Inventor 李梅高凯张栋梁
Owner 李梅
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