发明名称 |
SULFATE REMOVAL FROM ALKALI METAL CHLORATE SOLUTIONS AND PRODUCTION OF ALKALI METAL CHLORATE INCLUDING SAID REMOVAL |
摘要 |
A process for the removal of substantially chromium free sulfate from aqueous alkali metal solutions containing chromate and sulfate which includes mixing said solutions having a pH of between about 2.5 and 4.5 with a calcium-containing material for a time and at a temperature sufficient to form a gypsum precipitate and separating said gypsum precipitate from said solutions ; as well as a process for the production of alkali metal chlorate by electrolysis of alkali metal chloride including said removal.
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申请公布号 |
CA2037718(C) |
申请公布日期 |
1998.11.24 |
申请号 |
CA19912037718 |
申请日期 |
1991.03.07 |
申请人 |
KREBS & CIE |
发明人 |
SZANTO, ISTVAN;DIETRICH, MARC |
分类号 |
C01B11/14;C25B1/34;C25B15/08;(IPC1-7):C25B1/26;C01F11/46 |
主分类号 |
C01B11/14 |
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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