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Method for enriching and separating noble metal in aluminum-containing noble metal liquid by two-step method

A precious metal, two-step technology, applied in the petrochemical field, can solve the problems of short production cycle, high production efficiency and low production efficiency, and achieve the effect of short production cycle, high production efficiency and few steps.

Inactive Publication Date: 2010-04-28
HOOTECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production cycle is short and the production efficiency is high. After the exchange, the precious metal in the solution is further replaced by aluminum metal, which overcomes the shortcomings of low production efficiency and low recovery rate of the single enrichment method, and truly realizes the unity of simplicity and high efficiency.

Method used

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  • Method for enriching and separating noble metal in aluminum-containing noble metal liquid by two-step method
  • Method for enriching and separating noble metal in aluminum-containing noble metal liquid by two-step method
  • Method for enriching and separating noble metal in aluminum-containing noble metal liquid by two-step method

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Embodiment

[0023] The present invention will be described in further detail below by way of examples. The purpose is to verify the method and effect of the two-step enrichment and separation of noble metals in aluminum solutions containing noble metals.

[0024] According to the process flow chart shown in the accompanying drawing:

[0025] 1 Take three kinds of aluminum concentration (0.5~3.0mol L -1 ) The liquid containing noble metal platinum anion is the implementation of this case as raw material. Take 3500L of each kind, test its concentration respectively, see Table 1.

[0026] 2 exchanges

[0027] The liquid containing precious metal platinum anion is adsorbed by anion exchange resin:

[0028] The anion exchange resin adopts the commercially available R410 anion exchange resin, and the exchange rate is 80-160L h -1 .

[0029] The exchange effect is shown in Table 1:

[0030] Table I

[0031]

[0032] It can be seen from the above table that industrial operation require...

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Abstract

The invention discloses a method for enriching and separating noble metal in aluminum-containing noble metal liquid by a two-step method, which belongs to the field of petrochemical. Two steps of ion exchange and substitution are organically combined together, so that most of the noble metal in the liquid is separated and enriched onto anion selective resin through the ion exchange, while a small quantity of noble metal ions which are not enriched are enriched through the substitution for recycling. The method of the invention is short in production period and high in production efficiency; and the noble metal in solution obtained by the substitution is further substituted by aluminum metal. The method of the invention has the advantages of overcoming the defects of low production efficiency and low recovery rate of a single enriching method and really realizing the integration of simplicity and high efficiency.

Description

technical field [0001] The invention relates to waste recycling technology in the field of petrochemical industry, in particular to a two-step method for enriching and separating precious metals in aluminum-containing precious metal liquids. It is especially suitable for the enrichment and separation of aluminum-based carrier precious metal materials. Background technique [0002] Precious metals play a very important role in national defense, scientific research, national economic construction and people's lives. Under the circumstances that the available precious metal resources are limited and the contradiction between resource supply and demand is becoming more and more prominent, recycling precious metals in waste is an extremely important way to solve the shortage of precious metal resources. [0003] At present, the most commonly used method for recovering precious metals from waste at home and abroad is the wet recovery technology, such as US Patent No. 5,304,359. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B3/42C22B3/46C22B3/24C22B11/00
CPCY02P10/20
Inventor 夏军
Owner HOOTECH
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