发明名称 |
PREPARATION OF AQUEOUS SOLUTIONS OF FREE HYDROXYLAMINE |
摘要 |
A process is disclosed for producing an aqueous solution of free hydroxylamine. A solution obtained by treating an hydroxylammonium salt with a base is treated with water or water vapour at a temperature ? 80 C, so as to separate the solution into an aqueous hydroxylamine fraction and a salt fraction. This process is soft and easy to implement on a Large scale. The risk of decomposition is minimised because of the low thermal stresses, the low hydroxylamine concentration and the sho rt dwelling time during implementation of the process.
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申请公布号 |
CA2239253(C) |
申请公布日期 |
2006.01.31 |
申请号 |
CA19962239253 |
申请日期 |
1996.12.20 |
申请人 |
BASF CORPORATION;BASF AKTIENGESELLSCHAFT |
发明人 |
WATZENBERGER, OTTO;SCHNEIDER, HANS-MICHAEL;LEUTNER, BERND;FRIEDERANG, ALBRECHT WILHELM |
分类号 |
B01D1/28;C01B21/14;B01D3/14;B01D3/38 |
主分类号 |
B01D1/28 |
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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