发明名称 |
Preparation of a high purity and high concentration hydroxylamine free base |
摘要 |
A high purity aqueous solution of hydroxylamine product is prepared by treating an aqueous solution of hydroxylammonium salt with a base like ammonia at low temperatures. A novel process can be carried out by separating the ammonium salt side product from hydroxylamine with a low temperature filtration and a resin-exchange process. The concentration of the hydroxylamine product is further improved by a safe distillation process that produces a high purity and high concentration hydroxylamine product with reduced risks of explosion.
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申请公布号 |
US2005163694(A1) |
申请公布日期 |
2005.07.28 |
申请号 |
US20040764681 |
申请日期 |
2004.01.26 |
申请人 |
LIN KAUNG-FAR;CHEN JIN-FU;LIN WEI T.;CHEN RUEY-SHING;KUO K. G. |
发明人 |
LIN KAUNG-FAR;CHEN JIN-FU;LIN WEI T.;CHEN RUEY-SHING;KUO K. G. |
分类号 |
C01B21/14;(IPC1-7):C01C1/00 |
主分类号 |
C01B21/14 |
代理机构 |
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代理人 |
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地址 |
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