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Beneficiation method for directional enrichment of precious metal

A beneficiation method and directional enrichment technology, which can be used in flotation, solid separation and other directions, and can solve problems such as difficulty in achieving low-cost and efficient enrichment and beneficiation

Pending Publication Date: 2021-05-28
INST OF RESOURCES COMPREHENSIVE UTILIZATION GUANGDONG ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the existing defects or deficiencies that it is difficult to realize low-cost and high-efficiency enrichment and beneficiation for trace-level precious metal ores, and to provide a beneficiation method for directional enrichment of precious metals

Method used

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  • Beneficiation method for directional enrichment of precious metal
  • Beneficiation method for directional enrichment of precious metal
  • Beneficiation method for directional enrichment of precious metal

Examples

Experimental program
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Embodiment 1～3

[0031] This embodiment provides a series of beneficiation methods for directional enrichment of precious metals, such as figure 1 , the specific process is as follows.

[0032] (1) Fine grinding: Grinding to -0.020mm accounts for 80% to 94%;

[0033] (2) Rapid flotation: Adjust the pulp to a concentration of 25% to 35%, add collectors and foaming agents in sequence, and perform rapid flotation to obtain high-grade platinum-palladium concentrate;

[0034] (3) Platinum and palladium carrier flotation: add regulator, collector and foaming agent in sequence, and adopt a closed circuit of primary roughing, primary sweeping and secondary selection for platinum and palladium carrier flotation.

[0035] Among them, the ore grinding to -0.020mm accounts for 80%, 85%, and 94% respectively in Examples 1 to 3, and the adjusted pulp concentration is 25%, 35%, and 30%, respectively.

[0036] The ore supply information, selected reagents and dosage, other condition controls, and ore dressi...

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Abstract

The invention relates to a beneficiation method for directional enrichment of precious metal. The beneficiation method comprises the steps of ore grinding, rapid flotation and platinum-palladium carrier flotation. Through special collection of the platinum and palladium minerals and optimization of the flotation process structure, selective directional enrichment of the platinum and palladium minerals can be achieved, the platinum and palladium mineral separation enrichment ratio is high, and the process is simple, easy to operate and low in cost.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and in particular relates to a beneficiation method for directional enrichment of precious metals. [0002] technical background [0003] Platinum group metals are known as "the most important high-tech metals" and are key supporting materials for national strategic high-tech industries such as precision electronics, aero-engines, and optical fiber manufacturing. my country is a big consumer of platinum group metals, but its resources are extremely scarce, and its dependence on foreign countries is over 95%. Restricted by the technical blockade, the utilization rate of relevant domestic mineral resources is very low. [0004] my country's platinum group metal mineral resources are mainly concentrated in paragenetic or associated ores, with low grade, fine particle size, complex and difficult to separate. Famous mines include Jinchuan in Gansu, Jinbaoshan in Yunnan and Hongshila in Hebe...

Claims

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Application Information

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IPC IPC(8): B03D1/018B03D101/00B03D101/02B03D101/04B03D103/02
CPCB03D1/018B03D2201/007B03D2201/02B03D2201/04B03D2203/025
Inventor 王成行胡真李沛伦李强汪泰邹坚坚姚艳清杨凯志
Owner INST OF RESOURCES COMPREHENSIVE UTILIZATION GUANGDONG ACAD OF SCI
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