发明名称 |
PROCESS FOR THE RECOVERY OF SODIUM POLYSULPHIDE FROM SPENT SODIUM/SULPHUR BATTERIES |
摘要 |
<p>A method for removing sodium polysulfide from used sodium/sulfur batteries provides that the cells are granulated under protective measures, the scrap is treated in a solution of sodium cyanide and the solution obtained is treated with air. The solution then contains sodium thiocyanate and sodium hydroxide, which latter can be reacted by means of CO2 to Na2CO3, precipitated and separated.</p> |
申请公布号 |
EP0433654(A3) |
申请公布日期 |
1991.12.18 |
申请号 |
EP19900121761 |
申请日期 |
1990.11.14 |
申请人 |
DEGUSSA AKTIENGESELLSCHAFT |
发明人 |
BILGER, EDGAR, DR.;GUBISCH, URBAN |
分类号 |
H01M10/54;(IPC1-7):H01M10/54 |
主分类号 |
H01M10/54 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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