发明名称 |
METHOD FOR PRODUCING AN AQUEOUS HYDROXYLAMINE SOLUTION DEVOID OF SALT |
摘要 |
<p>A process for preparing a salt-free aqueous hydroxylamine solution by reacting an aqueous solution of a hydroxylammonium salt with a base to give a mixture and separating from said mixture by distillation a salt-free aqueous hydroxylamine solution, involving using as a base an aqueous solution of a mixture of NaOH and KOH in a molar ratio Na<SUP>+</SUP>:K<SUP>+</SUP> in the range from 70:30 to 95:5 and with a total concentration of Na<SUP>+</SUP> and K<SUP>+</SUP> in the range from 0.1 to 10 m/m % based on the total amount of the mixture.</p> |
申请公布号 |
EP1409401(B1) |
申请公布日期 |
2004.12.15 |
申请号 |
EP20020753076 |
申请日期 |
2002.07.02 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
WOSTBROCK, KARL-HEINZ;STROEFER, ECKHARD;WEBER, MARKUS;KERTH, STEFFEN |
分类号 |
C01B21/14;(IPC1-7):C01B21/14 |
主分类号 |
C01B21/14 |
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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