公开(公告)号：AT284837T

公开(公告)日：2005-01-15

申请号：AT02753076

申请日：2002-07-02

Applicant: BASF AG

Inventor： WOSTBROCK KARL-HEINZ ,  STROEFER ECKHARD ,  WEBER MARKUS ,  KERTH STEFFEN

IPC: C01B21/14

Abstract: A process for preparing a salt-free aqueous hydroxylamine solution by reacting an aqueous solution of a hydroxylammonium salt with a base to give a mixture and separating from said mixture by distillation a salt-free aqueous hydroxylamine solution, involving using as a base an aqueous solution of a mixture of NaOH and KOH in a molar ratio Na + :K + in the range from 70:30 to 95:5 and with a total concentration of Na + and K + in the range from 0.1 to 10 m/m % based on the total amount of the mixture.

公开(公告)号：DE10313497A1

公开(公告)日：2004-10-14

申请号：DE10313497

申请日：2003-03-25

Applicant: BASF AG

Inventor： STERZEL HANS-JOSEF ,  STROEFER ECKHARD ,  WEBER MARKUS ,  FRIEDRICH HOLGER

IPC: C01B7/19 ,  C01B21/083 ,  C01C1/16

Abstract: Method for preparing trifluoramine (I) by reacting ammonia and fluorine in presence of ammonium hydrogendifluoride (X), where (X) is present in a fluidized bed, in solid form.

公开(公告)号：DE10238995A1

公开(公告)日：2004-02-26

申请号：DE10238995

申请日：2002-08-20

Applicant: BASF AG

Inventor： WOELFERT ANDREAS ,  MUELLER CHRISTIAN ,  STROEFER ECKHARD ,  WEBER MARKUS ,  PFEFFINGER JOACHIM ,  KNOESCHE CARSTEN

IPC: C07B43/10 ,  C07C263/10 ,  C07C265/12 ,  C07C265/14 ,  C08G73/00

Abstract: A method for the production of aromatic di-isocyanates (I) by gas-phase reaction of phosgene with diamines involves carrying out the reaction in a reaction zone under a pressure of more than 3 bar and less than 20 bar. An Independent claim is also included for a production unit for this process, in which the ratio of production capacity to phosgene hold-up is more than 3200 tonnes di-isocyanate per annum/kg phosgene.

公开(公告)号：AU2003232761A1

公开(公告)日：2003-12-02

申请号：AU2003232761

申请日：2003-05-13

Applicant: BASF AG

Inventor： FIENE MARTIN ,  WEBER MARKUS ,  STROFER ECKHARD ,  HARTH KLAUS ,  WALSDORFF CHRISTIAN

IPC: C01B7/01 ,  C01B7/04

Abstract: The present invention relates to a process for the continuous preparation of chlorine by reaction of hydrogen chloride with oxygen in the presence of a heterogeneous catalyst, in which the conversion of hydrogen chloride in a single pass through the reactor is restricted to from 15 to 90%.

公开(公告)号：AU2002360937A1

公开(公告)日：2003-06-10

申请号：AU2002360937

申请日：2002-11-19

Applicant: BASF AG

Inventor： STROFER ECKHARD ,  PFEFFINGER JOACHIM ,  WEBER MARKUS ,  KNOSCHE CARSTEN ,  WOLFERT ANDREAS ,  MULLER CHRISTIAN

IPC: C07C263/10 ,  B01J12/00 ,  C07C265/14

Abstract: The invention relates to a method for producing isocyanates by reacting primary amines with phosgene in the gaseous phase. Said method is characterized in that the reaction of amine and phosgene occurs in a reaction channel, the internal dimensions of which have a width/height ratio of at least 2/1.

公开(公告)号：NO20025379A

公开(公告)日：2003-05-12

申请号：NO20025379

申请日：2002-11-08

Applicant: BASF AG

Inventor： STROEFER ECKHARD ,  WOSTBROCK KARL-HEINZ ,  WEBER MARKUS

IPC: B01D3/00 ,  A23K20/105 ,  C07B61/00 ,  C07C51/10 ,  C07C51/42 ,  C07C51/44 ,  C07C53/04 ,  C07C53/06

CPC classification number: C07C51/10 ,  A23K20/105 ,  B01D3/141 ,  C07C51/44 ,  C07C53/06

公开(公告)号：DE10134389A1

公开(公告)日：2003-01-16

申请号：DE10134389

申请日：2001-07-04

Applicant: BASF AG

Inventor： WOSTBROCK KARL-HEINZ ,  STROEFER ECKHARD ,  WEBER MARKUS ,  KERTH STEFFEN

IPC: C01B21/14

Abstract: The invention relates to a method for producing an aqueous hydroxylamine solution that is devoid of salt by reacting an aqueous solution of a hydroxylammonium salt with a base to obtain a mixture and by separating an aqueous hydroxylamine solution devoid of salt by distillation from said mixture. The method is characterised in that an aqueous solution of a mixture of NaOH and KOH with a molar ratio of Na+: K+ in the region of between 70: 30 and 95: 5 and a total concentration of Na+ and K+ in the region of between 0.1 and 10 m/m % (in relation to the total quantity of the mixture) is used as the base.

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

IPC: B01D3/14 ,  B01D3/16 ,  B01J19/30 ,  B01J19/32 ,  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 sa id column.

公开(公告)号：AU3547501A

公开(公告)日：2001-09-03

申请号：AU3547501

申请日：2001-02-14

Applicant: BASF AG

Inventor： WEBER MARKUS ,  STERZEL HANS-JOSEF ,  STROFER ECKHARD ,  WATZENBERGER OTTO

IPC: C01B21/14 ,  C07C217/20 ,  C07C235/60

Abstract: N,N,N-Tri((het)aryl-(hetero)alk(en)yl, (het)aryl-(hetero)alkynyl and (het)aryl-(hetero)cycloalk(en)yl)-amines (I), with a total of not less than 6 alkoxy and hydroxy substituents, and their salts are new. N,N,N-Tri((het)aryl-(hetero)alk(en)yl, (het)aryl-(hetero)alkynyl and (het)aryl-(hetero)cycloalk(en)yl)-amines of formula (I), with a total of not less than 6 alkoxy and hydroxy substituents, and their salts are new: N(A 1>R 1>)(A 2>R 2>)(A 3>R 3>) (I) A 1>, A 2>, A 3>alkylene, alkenylene, alkynylene, cycloalkylene or cycolalkenylene groups, which may have 1, 2 or 3 substituents selected from alkoxy, hydroxy and keto and/or carbon (C) atom(s) replaced by heteroatom(s) selected from nitrogen (N), oxygen (O) and sulfur (S); R 1>, R 2>, R 3>aryl or 5- or 6-membered unsaturated heterocyclyl with 1, 2 or 3 N, O or S heteroatoms. A 1>, A 2>, A 3>, R 1>, R 2> and R 3> groups contain a total of not less than 6 alkoxy and hydroxy substituents. An independent claim is also included for stabilized hydroxylamine solutions containing compound(s) (I) as stabilizer.