公开(公告)号：US5837107A

公开(公告)日：1998-11-17

申请号：US688281

申请日：1996-07-29

申请人： Otto Watzenberger ,  Hans-Michael Schneider ,  Bernd Leutner ,  Albrecht Wilhelm Friederang

发明人： Otto Watzenberger ,  Hans-Michael Schneider ,  Bernd Leutner ,  Albrecht Wilhelm Friederang

IPC分类号： B01D3/14 ,  B01D3/38 ,  C01B21/14

CPC分类号： B01D3/146 ,  B01D3/38 ,  C01B21/1445 ,  C01B21/1463 ,  C01B21/1472 ,  Y10S203/20

摘要： An aqueous solution of free hydroxylamine is prepared by a process in which the solution obtained by treating a hydroxylammonium salt with a base is separated into an aqueous hydroxylamine solution and a salt fraction by treatment with water or steam at .ltoreq.80.degree.0 C. The novel process can be carried out in a simple and gentle manner and on a large industrial scale. Owing to the low thermal load, the low concentration of hydroxylamine and the short residence time in the process, the risk of decomposition is minimized.

摘要翻译： 通过以下方法制备游离羟胺的水溶液，其中将通过用碱处理羟基铵盐获得的溶液在80℃下用水或蒸汽处理分离成羟胺溶液和盐馏分。 新颖的过程可以简单而温和的方式进行，在大型工业规模上进行。 由于热负荷低，羟胺浓度低，停留时间短，分解风险降低。