公开(公告)号：DE3465253D1

公开(公告)日：1987-09-17

申请号：DE3465253

申请日：1984-12-14

Applicant: BASF AG

Inventor： WEISS FRANZ-JOSEF DR ,  HABERMANN WOLFGANG CHEM ING ,  HAMMES PETER DR DIPL ING ,  RITZ JOSEF DR ,  THOMAS ERWIN ,  THOMA PETER DR DIPL ING

IPC: C25B1/00 ,  B01D57/02 ,  B01D61/44 ,  B01D61/50 ,  B01D61/54 ,  C01B21/14 ,  C01C1/26 ,  B01D13/02

公开(公告)号：DE3471591D1

公开(公告)日：1988-07-07

申请号：DE3471591

申请日：1984-12-14

Applicant: BASF AG

Inventor： WEISS FRANZ-JOSEF DR ,  HABERMANN WOLFGANG CHEM ING ,  HAMMES PETER DR DIPL ING ,  FROMMER ELMAR DR ,  THOMAS ERWIN DR ,  THOMA PETER DR DIPL ING

IPC: C25B3/00 ,  C01B21/14 ,  C25B1/00 ,  B01D13/02

Abstract: Aqueous solutions of hydroxylamine are prepared from aqueous hydroxylammonium salt solutions by electrodialysis by a method in which the aqueous hydroxylammonium salt solution is fed into the middle zone of an electrolysis cell, which is divided into a cathode zone, an anode zone and a middle zone by means of semipermeable membranes, and is electrolyzed, and the catholyte used is an alkali metal hydroxide solution containing ammonia and/or amines.