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A kind of precious metal ore flotation agent and its application

A technology for flotation reagents and precious metals, which is applied in flotation, solid separation and other directions, and can solve the problems of low flotation recovery rate and large dosage of reagents.

Active Publication Date: 2021-04-20
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems of low flotation recovery rate of existing flotation reagents and large dosage of reagents, the object of the present invention is to provide a precious metal ore flotation reagent

Method used

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  • A kind of precious metal ore flotation agent and its application
  • A kind of precious metal ore flotation agent and its application
  • A kind of precious metal ore flotation agent and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The raw ore in the present embodiment is copper oxide gold-silver ore, and the oxidation degree of raw ore is higher;

[0037] 1. Raw ore metal grade and phase analysis

[0038] The copper grade of the raw ore in this example is detected to be 0.86%, the gold grade is 1.02g / t, and the silver grade is 8.65g / t. The main metal minerals in the ore are hematite, bornite, chalcocite, malachite, cuprite, natural copper and a small amount of pyrite. Gangue minerals are mainly quartz, a small amount of carbonate minerals, skarn minerals and clay minerals.

[0039] 2. Drug regimen

[0040] The medicament scheme of the present invention: butyl xanthate 0.05g, isopentyl xanthate 0.04g, ethyl thiocarbamate 0.02g, triphenylphosphine 0.015g, triphenylphosphine oxide 0.03g and foaming agent 2# oil 0.02 g was stirred evenly to obtain the flotation agent of the present invention.

[0041] 3. Flotation process

[0042] (1) Add lime 500g / t to 500g copper oxide gold and silver raw ore,...

Embodiment 2

[0052] The raw ore in this embodiment is copper sulfide gold-silver ore, and the raw ore is substantially free of oxidation.

[0053] 1. Raw ore metal grade and phase analysis

[0054] The copper grade of the raw ore in this embodiment is detected to be 0.65%, the gold grade is 0.89g / t, and the silver grade is 7.94g / t. The copper-bearing minerals in the ore are chalcocite, azurite, blue chalcocite, bornite and tetrahedrite. The content of precious metal minerals such as gold and silver is relatively low, and they are distributed in copper minerals in the form of fine particles embedded or scattered. Gangue minerals are mainly quartz, dolomite and mica.

[0055] 2. Drug regimen

[0056] The medicament scheme of the present invention: stir 0.045g of amylxanthate, 0.04g of butyl sodium black medicine, 0.015g of triphenylphosphine, 0.02g of triphenylphosphine oxide and 0.01g of foaming agent 2# oil to obtain the present invention The flotation agent.

[0057] 3. Flotation pro...

Embodiment 3

[0068] The raw ore in this embodiment is lead-zinc-gold-silver ore, and the raw ore is substantially free of oxidation.

[0069] 1. Raw ore metal grade and phase analysis

[0070] After testing, the grade of lead in this embodiment is 7.23%, the grade of zinc is 3.68%, the grade of gold is 0.98g / t, and the grade of silver is 10.65g / t. The raw ore is associated with precious metals such as gold and silver. The main useful minerals in the ore are galena and sphalerite. The common associated ores are pyrite and copper sulfide. Gold and silver mainly exist in the form of isomorphism. in galena and sphalerite lattices. Gangue minerals are mainly quartz and clay minerals.

[0071] 2. Drug regimen

[0072] The medicament scheme of the present invention: butylammonium black medicine 0.05g, butyl sodium black medicine 0.05g, ethylthiazide 0.04g, butyl xanthate 0.03g, triphenylphosphine 0.015g, triphenylphosphine oxide 0.015g and foaming agent 0.01 g of 2# oil was stirred evenly to ...

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Abstract

The invention discloses a precious metal ore flotation agent and its application, which comprises the following components in parts by weight: 1-25 parts of collector A; 1-15 parts of collector B; 1-8 parts of foaming agent ; The collector A is selected from at least one of xanthate collectors, black drug collectors and ester collectors; the collector B is selected from triphenylphosphine and triphenyl at least one of phosphine oxides. Compared with traditional xanthate collectors, black drug collectors, ester collectors and combined collectors, the flotation agent of the present invention can greatly Improve the flotation recovery rate of precious metal ores, and at the same time, the dosage of chemicals is significantly lower than that of traditional chemicals. It has a stronger ability to collect precious metals and higher efficiency. Flotation agent cost.

Description

technical field [0001] The invention belongs to the technical field of mineral flotation, and in particular relates to a precious metal flotation agent and its application. Background technique [0002] Gold and silver are precious and rare metals. They are also indispensable resources for economic development and daily life. They also play a vital role in international finance. Therefore, all countries in the world attach great importance to the production and processing of gold and silver. With the rapid development of my country's economy, the production and consumption of gold and silver are increasing day by day, and there is an urgent need to increase the output value of gold and silver. The associated gold and silver minerals in nonferrous metal mineral resources are one of the important sources of gold and silver, so it is of great significance to improve the recovery rate of gold and silver in nonferrous metal mineral resources. [0003] Traditional primary preciou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/012B03D1/014B03D101/02B03D103/02
CPCB03D1/012B03D1/014B03D2201/02B03D2203/025
Inventor 孙伟陈攀曹建卢小龙
Owner CENT SOUTH UNIV