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DISSOLUTION OF THERMOELECTRIC MATERIALS CONTAINING Te WITH OXALIC ACID 发明授权

2023-06-29 2500 308K 0

专利信息

申请日期 2025-07-17 申请号 KR1020120062287
公开(公告)号 KR101331836B1 公开(公告)日 2013-11-15
公开国别 KR 申请人省市代码 全国
申请人 RECYTEC INC; KOREA INST SCI TECH
简介 The present invention relates to a dissolution method of tellurium (Te) which collects Te, a high price rare metal, by dissolving a material containing Bi2Te3. The dissolution method uses an aqueous solution containing oxalic acid and hydrogen peroxide and inserts the material containing Bi2Te3 into the aqueous solution after adding copper ions as a catalyst, instead of using a strong acidic aqueous solution including hydrochloric acid or sulfuric acid. The dissolution method is capable of economically obtaining a Te dissolved solution in an environmentally friendly way.


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