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公开(公告)号：CA2450107A1
公开(公告)日：2003-01-16
申请号：CA2450107
申请日：2002-07-02
Applicant: BASF AG
Inventor： RUMPF BERND , SACHWEH BERND , KERTH STEFFEN , STROFER ECKHARD , KRUGER HEINZ , WOSTBROCK KARL-HEINZ , THIEL JOACHIM , GERBER BERND , WEBER MARKUS
Abstract: The invention relates to a method for the production of a salt-free aqueous hydroxylamine solution by distilling an aqueous solution of an hydroxylammonium salt and a base in a plate column having at least two mechanical plates. The invention is characterized in that packings or structured packings are placed above at least one of the plates of the plate column along the cross section of said column.
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公开(公告)号：CA2451869C
公开(公告)日：2009-11-24
申请号：CA2451869
申请日：2002-07-02
Applicant: BASF AG
Inventor： STROEFER ECKHARD , KRUEGER HEINZ , WOSTBROCK KARL-HEINZ , THIEL JOACHIM , WEBER MARKUS , SACHWEH BERND , KERTH STEFFEN , GERBER BERND , RUMPF BERND
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 sa id column.
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公开(公告)号：DK1406832T3
公开(公告)日：2006-12-11
申请号：DK02745423
申请日：2002-07-02
Applicant: BASF AG
Inventor： WOSTBROCK KARL-HEINZ , THIEL JOACHIM , KRUEGER HEINZ , STROEFER ECKHARD , WEBER MARKUS , GERBER BERND , RUMPF BERND , SACHWEH BERND , KERTH STEFFEN
Abstract: A process for preparing a salt-free aqueous hydroxylamine solution by distilling an aqueous solution of a hydroxylammonium salt and a base in a tray column having at least two mechanical trays, wherein random or structured packings are located above at least one tray of the tray column over the cross section of the column.
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公开(公告)号：AT335709T
公开(公告)日：2006-09-15
申请号：AT02745423
申请日：2002-07-02
Applicant: BASF AG
Inventor： WOSTBROCK KARL-HEINZ , THIEL JOACHIM , KRUEGER HEINZ , STROEFER ECKHARD , WEBER MARKUS , GERBER BERND , RUMPF BERND , SACHWEH BERND , KERTH STEFFEN
Abstract: A process for preparing a salt-free aqueous hydroxylamine solution by distilling an aqueous solution of a hydroxylammonium salt and a base in a tray column having at least two mechanical trays, wherein random or structured packings are located above at least one tray of the tray column over the cross section of the column.
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公开(公告)号：CA2451869A1
公开(公告)日：2003-01-16
申请号：CA2451869
申请日：2002-07-02
Applicant: BASF AG
Inventor： WOSTBROCK KARL-HEINZ , KERTH STEFFEN , KRUEGER HEINZ , THIEL JOACHIM , STROEFER ECKHARD , SACHWEH BERND , RUMPF BERND , GERBER BERND , WEBER MARKUS
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 sa id column.
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Patent Agency Ranking
公开(公告)号：CA2450107C
公开(公告)日：2009-09-22
申请号：CA2450107
申请日：2002-07-02
Applicant: BASF AG
Inventor： GERBER BERND , WEBER MARKUS , KRUGER HEINZ , STROFER ECKHARD , THIEL JOACHIM , RUMPF BERND , WOSTBROCK KARL-HEINZ , SACHWEH BERND , KERTH STEFFEN
Abstract: The invention relates to a method for the production of a salt-free aqueous hydroxylamine solution by distilling an aqueous solution of an hydroxylammonium salt and a base in a plate column having at least two mechanical plates. The invention is characterized in that packings or structured packings are placed above at least one of the plates of the plate column along the cross section of said column.
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公开(公告)号：DE50207808D1
公开(公告)日：2006-09-21
申请号：DE50207808
申请日：2002-07-02
Applicant: BASF AG
Inventor： WOSTBROCK KARL-HEINZ , THIEL JOACHIM , KRUEGER HEINZ , STROEFER ECKHARD , WEBER MARKUS , GERBER BERND , RUMPF BERND , SACHWEH BERND , KERTH STEFFEN
Abstract: A process for preparing a salt-free aqueous hydroxylamine solution by distilling an aqueous solution of a hydroxylammonium salt and a base in a tray column having at least two mechanical trays, wherein random or structured packings are located above at least one tray of the tray column over the cross section of the column.
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公开(公告)号：AT325797T
公开(公告)日：2006-06-15
申请号：AT02777064
申请日：2002-09-11
Applicant: BASF AG
Inventor： LANG ORTMUND , RUMPF BERND , FRAUENKRON MATTHIAS , MANDERBACH THOMAS , STEIN BERND
IPC: C07D487/08 , C07D241/00
Abstract: Highly pure triethylenediamine is obtained by a process in which triethylenediamine is freed from high boilers and then the triethylenediamine is vaporized from the mixture thus obtained and is passed into a liquid solvent. The process makes it possible in particular to obtain highly pure solutions of triethylenediamine. Crystallization is generally unnecessary.
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公开(公告)号：AT282580T
公开(公告)日：2004-12-15
申请号：AT02767163
申请日：2002-07-02
Applicant: BASF AG
Inventor： WOSTBROCK KARL-HEINZ , THIEL JOACHIM , KRUEGER HEINZ , STROEFER ECKHARD , WEBER MARKUS , GERBER BERND , RUMPF BERND , SACHWEH BERND , KERTH STEFFEN
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.
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公开(公告)号：DE10319159A1
公开(公告)日：2004-11-18
申请号：DE10319159
申请日：2003-04-29
Applicant: BASF AG
Inventor： LANG ORTMUND , RUMPF BERND , FRAUENKRON MATTHIAS , BOSCH MARCO , BERRSCHE HELMUT , MEIER ANTON
IPC: B01D3/14 , B01D3/32 , C07C209/84 , C07C211/10 , C07D487/08
Abstract: Distillative purification of triethylene diamine (TEDA) is carried out in a partitioned column.
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