| 发明名称 |
FREMGANGSMAATE FOR RESIRKULERING AV BRUKT METALLSULFATHOLDIG SVOVELSYRE. |
| 摘要 |
<p>Spent metal sulphate-containing sulphuric acid is recirculated by means of evaporation of the dilute sulphuric acid containing dissolved metal sulphates to a content of 40 to 85 % of H2SO4, relative to salt-free acid. The metal sulphates are separated off by filtration, and the sulphuric acid separated off is re-used.</p> |
| 申请公布号 |
NO167970(C) |
申请公布日期 |
1992.01.02 |
| 申请号 |
NO19860000712 |
申请日期 |
1986.02.26 |
| 申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
LAILACH, GUENTER;GERKEN, RUDOLF;FUERDEN, ARMIN VAN |
| 分类号 |
C01B17/90;C22B3/08;C22B3/22;C22B34/12;C23G1/36;(IPC1-7):C01B17/90 |
主分类号 |
C01B17/90 |
| 代理机构 |
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代理人 |
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