发明名称 |
METHOD FOR PRODUCING AN AQUEOUS HYDROXYLAMINE SOLUTION DEVOID OF SALT |
摘要 |
The invention relates to a method for producing an aqueous hydroxylamine solution that is devoid of salt by reacting an aqueous solution of a hydroxylammonium salt with a base to obtain a mixture and by separating an aqueous hydroxylamine solution devoid of salt by distillation from said mixture. The method is characterised in that an aqueous solution of a mixtur e of NaOH and KOH with a molar ratio of Na+: K+ in the region of between 70: 3 0 and 95: 5 and a total concentration of Na+ and K+ in the region of between 0 .1 and 10 m/m % (in relation to the total quantity of the mixture) is used as t he base.
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申请公布号 |
CA2451482(A1) |
申请公布日期 |
2003.01.16 |
申请号 |
CA20022451482 |
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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地址 |
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