Trentment method of tin copper slag

A slag treatment, tin-copper technology, applied in the field of combined fire-wet treatment of tin-copper slag, can solve the problems of long process flow, high treatment cost, poor economic benefits, etc., achieve simple and feasible process, good environmental effect and low production cost Reduced effect
CN1786226AInactive Publication Date: 2006-06-14云南锡业集团有限责任公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
云南锡业集团有限责任公司
Publication Date
2006-06-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a tin copper scale fire wet method combining treatment method. It can use simple technique to produce top stannous sulfate product. The tin copper scale is a high tin low copper middle material, packed by tin and copper. The invention combines tin copper scale treatment and stannous sulfate preparing, adopts respectively two segment atmospheric pressure leaching method for copper sulfate test and sulfuric acid solution to effectively separate copper from the tin copper scale, and gain high quality tin fine mineral product, copper sulfate product and stannous sulfate product.
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Description

technical field

[0001] The invention belongs to a treatment method for removing copper slag from tin refining, and in particular relates to a fire-wet combined treatment method for tin-copper slag. Background technique

[0002] In the tin smelting process, after the tin concentrate is reduced and smelted into crude tin, due to the presence of copper in the tin smelting raw materials, the copper content in the crude tin is relatively high. Therefore, sulfur addition and copper removal operations are required to form a copper-containing Tin-copper slag (also known as sulfur slag) with a tin content of 10-30% and a tin content of 30-80%. Most of the tin in this slag exists in the form of metal, oxide or alloy, and most of the copper is in the form of copper sulfide (Cu 2 S) form exists. There are mainly the following methods for the treatment of such tin-copper slag at home and abroad:

[0003] (1) Pyromelting: A certain proportion of flux is added to smelt in a short kiln t...

Claims

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