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公开(公告)号：DE59803544D1
公开(公告)日：2002-05-02
申请号：DE59803544
申请日：1998-08-28
Applicant: BASF AG
Inventor： WEYER HANS-JUERGEN , STAMM ARMIN , WEBER THEODOR , HENKELMANN JOCHEM
IPC: B01J31/02 , C07B61/00 , C07C329/02
Abstract: PCT No. PCT/EP98/05525 Sec. 371 Date Feb. 17, 2000 Sec. 102(e) Date Feb. 17, 2000 PCT Filed Aug. 28, 1998 PCT Pub. No. WO99/11611 PCT Pub. Date Mar. 11, 1999A catalyst used for preparing thiochloroformates by reacting thiols with phosgene is a cyclic urea or cyclic thiourea which may be in the form of a salt obtainable by reaction with a hydrohalic acid or phosgene.
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公开(公告)号：AT215070T
公开(公告)日：2002-04-15
申请号：AT98948890
申请日：1998-08-28
Applicant: BASF AG
Inventor： WEYER HANS-JUERGEN , STAMM ARMIN , WEBER THEODOR , HENKELMANN JOCHEM
IPC: B01J31/02 , C07B61/00 , C07C329/02
Abstract: PCT No. PCT/EP98/05525 Sec. 371 Date Feb. 17, 2000 Sec. 102(e) Date Feb. 17, 2000 PCT Filed Aug. 28, 1998 PCT Pub. No. WO99/11611 PCT Pub. Date Mar. 11, 1999A catalyst used for preparing thiochloroformates by reacting thiols with phosgene is a cyclic urea or cyclic thiourea which may be in the form of a salt obtainable by reaction with a hydrohalic acid or phosgene.
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公开(公告)号：AU4648501A
公开(公告)日：2001-09-12
申请号：AU4648501
申请日：2001-02-28
Applicant: BASF AG
Inventor： STAMM ARMIN , KNEUPER HEINZ-JOSEF , HENKELMANN JOCHEM , WEBER THEODOR , BUSCH RALPH
Abstract: The invention relates to a method for producing chlorocarboxylic acid chlorides of formula (I), wherein R and R , independently from one another, mean a hydrogen atom, an organic radical containing carbon, a halogen, a nitro or cyano group and Y means an alkylene chain having 1 to 10 carbon atoms in the chain which is unsubstituted or is substituted by organic radicals that contain carbon, by halogen, nitro and/or cyano groups, whereby the alkylene chain can be interrupted by an ether-, thioether-, tertiary amino- or keto group, whereby the organic radicals of Y and/or R and/or R can be connected to one another and thereby form a non-aromatic system, whereby said radicals contain carbon, by converting a lactone of formula (II), wherein R , R and Y have the aforementioned meanings, using a hydrogen chloride and phosgene in the presence of a catalyst. Hydrogen chloride is added before and/or while phosgene is added. The hydrogen chloride is only introduced at a temperature of at least 60 DEG C. A pyridine compound is used as the catalyst.
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公开(公告)号：DE19943858A1
公开(公告)日：2001-03-15
申请号：DE19943858
申请日：1999-09-13
Applicant: BASF AG
Inventor： BUSCH RALPH , KNEUPER HEINZ-JOSEF , WEBER THEODOR , MUELLER WINFRIED , STAMM ARMIN , HENKELMANN JOCHEM
Abstract: The invention relates to a method for purifying acid chlorides which have been produced by converting carboxylic acids with carbon oxychloride or thionyl chloride in the presence of a catalyst adduct. The acid chlorides are treated with a hydro halide of carboxylic acid amides of general formula (I), wherein R stands for hydrogen or C1- to C3-alkyl; R and R , independently from one another, mean C1- to C4-alkyl or R and R together mean a C4- or C5-alkylene chain. The thus purified acid chloride is isolated by separation said acid chloride from the carboxylic acid amide hydro halide-phase.
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公开(公告)号：CA1223604A
公开(公告)日：1987-06-30
申请号：CA476317
申请日：1985-03-12
Applicant: BASF AG
Inventor： HERTEL OTTO , JESCHEK GERHARD , KLINK WALTER , KOERNIG WOLFGANG , WEBER THEODOR , RATEIKE FRITZ
Abstract: of the disclosure: A process for the preparation of pourable choline chloride/silica powders by mixing silica with choline chloride and, where appropriate, drying this mixture, wherein spray-dried or fluidized beddried silica which has a particle size of from 30 to 250 .mu.m is mixed with an aqueous choline chloride solution which contains from 70 to 80% by weight, based on the solution, of choline chloride and is at from 40 to 80.degree.C, thereafter from 0.05 to 0.4% by weight, based on the mixture, of magnesium stearate or calcium stearate is added and, if appropriate the resulting mixture is dried.
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Patent Agency Ranking
公开(公告)号：HU228660B1
公开(公告)日：2013-05-28
申请号：HU0202605
申请日：2000-08-31
Applicant: BASF AG
Inventor： BUSCH RALPH , KNEUPER HEINZ-JOSEF , WEBER THEODOR , MUELLER WINFRIED , STAMM ARMIN , HENKELMANN JOCHEM
Abstract: The invention relates to a method for producing acid chlorides by converting carboxylic acids with carbon oxychlorides or thionyl chloride in the presence of a catalyst adduct of an N,N-disubstituted formamide of general formula (I) and carbon oxychloride or thionyl chloride. In the formula, R and R , independently from one another, mean C1- to C4-alkyl or R and R together mean a C4- or C5-alkylene chain. According to the inventive method, hydrogen chloride is added during and/or after the conversion.
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公开(公告)号：AT364591T
公开(公告)日：2007-07-15
申请号：AT04765603
申请日：2004-09-24
Applicant: BASF AG
Inventor： REUTEMANN WERNER , WEBER THEODOR , ROSS KARL-HEINZ , JULIUS MANFRED
IPC: C07C209/86 , C07C209/16 , C07C209/90 , C07C211/04
Abstract: The invention relates to a method of avoiding corrosion in the separation of methylamine from a product stream ( 10 ) which is obtained in the preparation of methylamines by gas-phase reaction of methanol and ammonia and includes monomethylamine, dimethylamine, trimethylamine, ammonia and methanol as components, where ammonia is separated off by pure distillation in a first column ( 1 ), the remaining components of the product stream obtained as bottoms ( 12 ) are fed to a second column ( 2 ). Trimethylamine ( 14 ) is separated off in the second column ( 2 ) by extractive distillation with introduction of water. The further components of the product stream obtained as bottoms ( 15 ) from the second column ( 2 ) are fed to a third column ( 3 ), in which monomethylamine and dimethylamine are separated off at the top. The monomethylamine and dimethylamine are separated by distillation in a fourth column ( 4 ). To avoid corrosion alkali metal hydroxide is added to the second or third column ( 3 ).
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公开(公告)号：DE10344283A1
公开(公告)日：2005-04-21
申请号：DE10344283
申请日：2003-09-24
Applicant: BASF AG
Inventor： REUTEMANN WERNER , WAMBSGANS ROLF , POPLOW FRANK , WEBER THEODOR , ROS KARL-HEINZ , JULIUS MANFRED
IPC: C07C209/16 , C07C211/04 , C07C209/24
Abstract: The invention relates to a process for preparing methylamines by gas-phase reaction of methanol and ammonia as starting materials at a pressure in the range from 15 to 30 bar in the presence of heterogeneous catalyst. The starting materials are vaporized in one or more heat exchangers (1, 2, 3), superheated to produce a feed gas stream and subsequently fed into a reactor (4), with the mixing of the starting materials being able to be carried out in the feed stream to one of the heat exchangers (1, 2, 3) or at any desired position in a heat exchanger (1, 2, 3). A product gas stream comprising monomethylamine, dimethylamine and trimethylamine and also reaction by-products is taken off from the reactor (4). To control the reactor inlet temperature of the starting materials to a temperature in the range from 360° C. to 370° C., all or some of the feed gas stream or the product gas stream is passed through an adjustable valve (5) in order to vary the pressure and thus the condensation temperature.
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公开(公告)号：DE50007400D1
公开(公告)日：2004-09-16
申请号：DE50007400
申请日：2000-08-31
Applicant: BASF AG
Inventor： BUSCH RALPH , KNEUPER HEINZ-JOSEF , WEBER THEODOR , MUELLER WINFRIED , STAMM ARMIN , HENKELMANN JOCHEM
Abstract: The invention relates to a method for producing acid chlorides by converting carboxylic acids with carbon oxychlorides or thionyl chloride in the presence of a catalyst adduct of an N,N-disubstituted formamide of general formula (I) and carbon oxychloride or thionyl chloride. In the formula, R and R , independently from one another, mean C1- to C4-alkyl or R and R together mean a C4- or C5-alkylene chain. According to the inventive method, hydrogen chloride is added during and/or after the conversion.
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公开(公告)号：DE10231085A1
公开(公告)日：2004-01-22
申请号：DE10231085
申请日：2002-07-10
Applicant: BASF AG
Inventor： HENKELMANN JOCHEM , WEBER THEODOR , ROHDE THORSTEN , BUSCH RALPH
IPC: C07C273/18 , C07C275/06
Abstract: The invention relates to a process for the preparation of tetrasubstituted ureas by reaction of the corresponding amines with phosgene in the presence of an aqueous inorganic base at a temperature in the range from 0 to 150° C., which comprises: feeding the corresponding amine, the phosgene and the aqueous inorganic base on average continuously to the reaction apparatus, forming a two-phase system in the reaction apparatus through the choice of the tetrasubstituted ureas to be prepared, through the mixing ratios of the substances and substance mixtures to be fed in, through the temperature during the reaction and, where appropriate, through the feed of an organic solvent which is not completely miscible with water, and discharging the reaction mixture on average continuously from the reaction apparatus.
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