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Wet treatment comprehensive recycling technology of copper anode mud

A technology of copper anode slime and wet treatment, applied in the direction of photography technology, photography auxiliary technology, process efficiency improvement, etc., can solve the problems of wasting energy, wasting tellurium, tin, pollution, etc., to improve the working environment and reduce smoke The effect of generation and reduction of loss rate

Inactive Publication Date: 2017-06-13
DONGYING FANGYUAN NONFERROUS METALS +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current process only recycles gold, silver, selenium and copper, wasting a lot of valuable metals such as tellurium and tin, which not only wastes a lot of energy, but also causes serious pollution

Method used

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  • Wet treatment comprehensive recycling technology of copper anode mud

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings.

[0013] A copper anode slime wet treatment comprehensive recovery process, the process flow is: copper anode slime - high pressure leaching - copper separation, copper separation liquid to send copper electrowinning - lead separation, lead separation liquid to sink lead to obtain lead sulfate - separation Gold, gold separation liquid reduction to obtain coarse gold powder, then send selenium tellurium platinum palladium process to extract selenium, tellurium, platinum palladium - silver separation, silver separation liquid reduction to obtain coarse silver powder - coarse gold powder casting gold anode, gold electrolysis, electrogold casting into gold ingots - Coarse silver powder is cast into silver anode, silver is electrolyzed, and electrosilver is cast into silver ingots.

[0014] The copper separation: add water and sulfuric acid to the anode slime for slurrying, a...

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Abstract

The invention provides a wet treatment comprehensive recycling technology of copper anode mud. The wet treatment comprehensive recycling technology comprises the technological processes of carrying out high pressure leaching on the copper anode mud; copper leaching: carrying out copper electrowinning on a copper leaching solution; lead leaching: carrying out lead deposition on a lead leaching solution to obtain lead sulfate; gold leaching: carrying out reduction on a gold leaching solution to obtain coarse gold powder, and carrying out selenium tellurium platinum target procedure on the coarse gold powder to extract selenium, tellurium and platinum targets; silver leaching: carrying out reduction on a silver leaching solution to obtain coarse silver powder; casting a gold anode through the coarse gold powder, carrying out gold electrolysis, and carrying out electric gold casting to obtain gold ingots; and casting a silver anode through the coarse silver powder, carrying out silver electrolysis, and carrying out electric silver casting to obtain silver ingots. The wet treatment comprehensive recycling technology has the advantages that the working environment is improved, treatment quantity of downstream procedures is decreased, the recycling rate and direct recovery rate of elements are increased, and the loss rate of gold and silver is decreased.

Description

technical field [0001] The invention relates to the field of nonferrous metallurgy, in particular to a comprehensive recycling process for wet treatment of copper anode slime. Background technique [0002] Copper anode slime is an important material rich in gold, silver, selenium, tellurium, platinum, palladium and other rare and scattered metals. A considerable part of the world's gold and silver production comes from copper anode slime. In the past ten years, with the rising price of gold, the efficient recovery of precious metals such as gold and silver from copper anode slime and the comprehensive utilization of other valuable metals have received increasing attention from various countries. In addition to constantly improving and transforming the traditional pyroprocessing process that has been adopted, new processes for the treatment of copper anode slime have also been studied at home and abroad. The composition of copper anode slime in my country is relatively compl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B7/00C22B15/00C25C1/12C22B13/00C22B11/00C25C1/20C01B19/02
CPCC01B19/02C22B7/007C22B11/042C22B13/045C22B15/0071C22B15/0089C25C1/12C25C1/20Y02P10/20
Inventor 崔志祥王智王海滨胡胜军蔺庆武雒庆堂
Owner DONGYING FANGYUAN NONFERROUS METALS
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