Invention Grant
- Patent Title: Method for producing an aqueous hydroxylamine solution devoid of salt
- Patent Title (中): 不含盐的羟胺水溶液的制造方法
-
Application No.: US10482212Application Date: 2002-07-02
-
Publication No.: US07029557B2Publication Date: 2006-04-18
- Inventor: Karl-Heinz Wostbrock , Joachim Thiel , Heinz Krüger , Eckhard Ströfer , Markus Weber , Bernd Gerber , Bernd Rumpf , Bernd Sachweh , Steffen Kerth
- Applicant: Karl-Heinz Wostbrock , Joachim Thiel , Heinz Krüger , Eckhard Ströfer , Markus Weber , Bernd Gerber , Bernd Rumpf , Bernd Sachweh , Steffen Kerth
- Applicant Address: DE Ludwigshafen
- Assignee: BASF Aktiengesellschaft
- Current Assignee: BASF Aktiengesellschaft
- Current Assignee Address: DE Ludwigshafen
- Agency: Novak Druce & Quigg, LLP
- Priority: DE10131788 20010704
- International Application: PCT/EP02/07271 WO 20020702
- International Announcement: WO03/004407 WO 20030116
- Main IPC: B01D3/16
- IPC: B01D3/16 ; B01D19/30 ; C01B21/14
Abstract:
The invention relates to a method for producing a highly pure, aqueous hydroxylamine solution by distilling an aqueous solution, devoid of salt, of a hydroxyl ammonium salt in a plate column comprising at least two mechanical plates. Said method is characterised in that packing bodies are arranged between at least two plates of the plate column over the cross-section of said column.
Public/Granted literature
- US20040149564A1 Method for producing an aqueous hydroxylamine solution devoid of salt Public/Granted day:2004-08-05
Information query
