发明名称 |
METHOD FOR PRODUCING HIGHLY PURE AQUEOUS HYDROXYLAMINE SOLUTIONS |
摘要 |
The invention relates to a method for the production of highly pure aqueous solution from free hydroxylamine, wherein the diluted aqueous hydroxylamine solution is concentrated in a column, the vapor containing hydroxylamine is removed from the bottom of the column via a side-stream and highly pure hydroxylamine is obtained through condensation of the vapors. The inventive method is simple and mild, can be used in large-scale production and yields "electronic grade" hydroxylamine.
|
申请公布号 |
CA2293319(A1) |
申请公布日期 |
1998.12.23 |
申请号 |
CA19982293319 |
申请日期 |
1998.06.18 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
STROEFER, ECKHARD;SCHELLING, HEINER;WATZENBERGER, OTTO;PFAB, PETER |
分类号 |
B01D3/00;C01B21/14;(IPC1-7):C01B21/14 |
主分类号 |
B01D3/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|