-
-
公开(公告)号:AU1304097A
公开(公告)日:1997-07-14
申请号:AU1304097
申请日:1996-12-20
-
公开(公告)号:ES2181933T3
公开(公告)日:2003-03-01
申请号:ES96944616
申请日:1996-12-20
-
公开(公告)号:HRP960599B1
公开(公告)日:2001-12-31
申请号:HRP960599
申请日:1996-12-19
Applicant: BASF AG
Abstract: A process for separating a fraction containing low and middle boilers from a mixture of low, middle and high boilers, which involves treating the mixture in a column with low-boiler vapor in the bottom, so that the middle-boiling component accumulates in the low-boiler vapor and can be obtained at the temperature level of the low-boiling component.
-
公开(公告)号:AT222565T
公开(公告)日:2002-09-15
申请号:AT96944616
申请日:1996-12-20
-
公开(公告)号:AU707648B2
公开(公告)日:1999-07-15
申请号:AU1304097
申请日:1996-12-20
-
公开(公告)号:BR9612053A
公开(公告)日:1999-02-23
申请号:BR9612053
申请日:1996-12-20
-
公开(公告)号:TR9801163T2
公开(公告)日:1998-09-21
申请号:TR9801163
申请日:1996-12-20
CPC classification number: C01B21/1445 , B01D3/146 , B01D3/38 , C01B21/1463 , C01B21/1472
-
公开(公告)号:NO982847L
公开(公告)日:1998-08-17
申请号:NO982847
申请日:1998-06-19
-
公开(公告)号:CA2239253A1
公开(公告)日:1997-06-26
申请号:CA2239253
申请日:1996-12-20
Abstract: A process is disclosed for producing an aqueous solution of free hydroxylamine. A solution obtained by treating an hydroxylammonium salt with a base is treated with water or water vapour at a temperature ? 80 ~C, so as to separate the solution into an aqueous hydroxylamine fraction and a salt fraction. This process is soft and easy to implement on a large scale. The risk of decomposition is minimised because of the low thermal stresses, the low hydroxylamine concentration and the short dwelling time during implementation of the process.
-
-
-
-
-
-
-
-
-