Method for separating valuable metals from lead anode mud

A technology for lead anode slime and valuable metals, which is applied in the field of separating valuable metals from lead anode slime, can solve the problems of low direct recovery rate and impact on copper recovery rate, and achieve simple process, high recovery rate and low temperature Effect
CN101798629AInactive Publication Date: 2010-08-11ZHUZHOU SMELTER GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHUZHOU SMELTER GRP
Publication Date
2010-08-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for separating valuable metals from lead anode mud, aiming to provide a new method for separating valuable metals in lead anode mud by using a wet method. The invention is characterized in that the purpose of more thoroughly separating the valuable metals in the lead anode mud is achieved through several steps of acid leaching, hydrolyzing to deposit antimony, hydrolyzing to deposit bismuth, vulcanizing to deposit copper and concentrating to crystallize. Meanwhile, compared with the traditional method, the method has simple flow, small environmental pollution and high metal recovery rate. The invention is mainly used for non-ferrous enterprises to separate the valuable metals from the lead anode mud.
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Description

technical field

[0001] The invention relates to a method for separating valuable metals, in particular to a method for separating valuable metals from lead anode slime. Background technique

[0002] The anode slime produced in the electrolytic refining process of lead contains gold, silver, arsenic, antimony, bismuth, tellurium, copper and other valuable metal substances. The lead anode slime must be treated to recover the valuable metals.

[0003] The lead anode slime is treated by the pyrotechnic process, and the lead content in the obtained antimony dust is as high as 2-5%, and the silver content is 500-1000g / t, which not only affects the recovery rate of lead and silver, but also cannot obtain No. Antimony: The grade of bismuth slag obtained by the pyrotechnic process is 20-30% low and contains high lead, antimony and silver. When bismuth is refined, a silver removal process must be added. The time for lead removal is long, the amount of chlorine gas is large, and the op...

Claims

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