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Method for preparing and using collecting agent for gold, silver and platinum family elements

A collector and platinum group technology, applied in solid separation, flotation, etc., can solve problems such as rapid diffusion, limited solubility, and high foam viscosity

Active Publication Date: 2011-04-13
北京天任瑞创科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Firstly, the collector has foaming properties, and its foam has high viscosity; secondly, because the solubility of oily thiourethane in the aqueous solution of black medicine is limited, it needs to be used together with auxiliary collectors for better results. When the absorbent is thiourethane, there is also the problem of rapid diffusion in the pulp

Method used

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  • Method for preparing and using collecting agent for gold, silver and platinum family elements
  • Method for preparing and using collecting agent for gold, silver and platinum family elements
  • Method for preparing and using collecting agent for gold, silver and platinum family elements

Examples

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Embodiment Construction

[0020] The invention is further illustrated by, but not limited to, the following examples.

[0021] Add black drug solution into the container, then add allyl alkylthiocarbamate under stirring, and finally add alkanol, make it mix uniformly, and obtain the product of the present invention.

[0022] Use a ball mill to grind the ore until the fineness of the coarse and fine products is +75μm, accounting for 40% of the mass content, and -38μm, accounting for 90%. Machine re-grinding and re-election, fine particles are separated by stirring flotation machine flotation, one roughing, one sweeping, three beneficiation, respectively output concentrate 2 and tailings.

[0023] In example 1-5, select isobutyl sodium black medicine (A), N-allyl-O-ethyl thiocarbamate (B), n-butanol to make collector flotation certain sulfide ore gold, capture The dosage of the agent is 70g / t, and the agent system is shown in Table 1.

[0024] Table 1: Components and proportioning of collectors of exam...

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Abstract

The invention discloses a method for preparing collecting agent for gold, silver and platinum family elements. The collecting agent can be obtained by adding alkanol in a black powder solution of allylic alkyl sulfur ammonia ester and fully stirring at room temperature to be transparent. The invention also provides a use method of the collecting agent, comprising the following steps of: grinding ore to a proper fineness to ensure that the mass fraction of solids in ore pulp is 20-50 percent; then adding lime or sulfuric acid and adjusting the pH value of the ore pulp to be 8.0-11.0; and finally adding 4-30g / t foaming agent and 2-100g / t collecting agent and foaming the gold, silver and platinum family elements according to the conventional method. The collecting agent has the advantages of favorable selectivity, high collection performance and moderate foaming viscosity and greatly improves the grade and the recovery rate of gold, silver, platinum / palladium metals.

Description

(1) Technical field [0001] The invention relates to the preparation and application method of a collector for gold, silver and platinum group elements. (2) Background technology [0002] Froth flotation is a mineral processing and separation method with mature technology, high separation efficiency and wide application range. Its main feature is to use the difference in wettability of the mineral surface to selectively enrich a or several purpose materials. Collectors commonly used in froth flotation process include xanthate, black medicine, thiourethane, xanthate formate, thiourea, etc. [0003] U.S. Patent No. 3,925,218 discloses that oil-soluble dialkylthiocarbamate is dissolved in dialkyl dithiophosphate (commonly known as black medicine, hereinafter referred to as black medicine) aqueous solution, and the prepared mixture solution helps to improve the floating of copper. Select recovery rate. The possible reason is that dialkylthiocarbamate dissolves in the black che...

Claims

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Application Information

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IPC IPC(8): B03D1/012B03D1/014B03D1/02B03D101/02
Inventor 王强
Owner 北京天任瑞创科技发展有限公司
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