-
公开(公告)号:MX9804788A
公开(公告)日:1998-10-31
申请号:MX9804788
申请日:1998-06-15
Abstract: La presente invencion se refiere a una solucion acuosa de hidroxilamina que se prepara por un proceso en el que la solucion obtenida mediante el tratamiento de una sal de hidroxilamonio con una base se separa por destilacion en una solucion acuosa de hidroxilamina y una fraccion de sales. El proceso novedoso se puede llevar a cabo en una forma sencilla y moderada y a escala industrial grande. Debido a la carga térmica baja, la concentracion baja de la hidroxilamina y al tiempo de estancia corto en el proceso, se reduce al mínimo el riesgo de descomposicion.
-
公开(公告)号:TR199801163T2
公开(公告)日:1998-09-21
申请号:TR9801163
申请日:1996-12-20
-
公开(公告)号:NO982847A
公开(公告)日:1998-08-17
申请号:NO982847
申请日:1998-06-19
CPC classification number: C01B21/1445 , B01D3/146 , B01D3/38 , C01B21/1463 , C01B21/1472
-
公开(公告)号:NO982847D0
公开(公告)日:1998-06-19
申请号:NO982847
申请日:1998-06-19
-
公开(公告)号:CA2239253C
公开(公告)日:2006-01-31
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 sho rt dwelling time during implementation of the process.
-
公开(公告)号:NO319309B1
公开(公告)日:2005-07-11
申请号:NO982847
申请日:1998-06-19
-
公开(公告)号:PT868399E
公开(公告)日:2003-01-31
申请号:PT96944616
申请日:1996-12-20
-
公开(公告)号:DK0868399T3
公开(公告)日:2002-10-07
申请号:DK96944616
申请日:1996-12-20
-
19.
-
公开(公告)号:HRP960599A2
公开(公告)日:1998-02-28
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.
-
-
-
-
-
-
-
-
-