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公开(公告)号：ES2209870T3
公开(公告)日：2004-07-01
申请号：ES00926738
申请日：2000-03-15
Applicant: BASF AG
Inventor： OLBERT GERHARD , CORR FRANZ , REUTER PETER , WAMBACH LUDWIG , HAMMON ULRICH
Abstract: A multitube fixed bed reactor and the use of such a reactor for carrying out catalytic gas-phase reactions, in particular for carrying out exothermic and endothermic catalytic gas-phase reactions such as the preparation of phthalic anhydride (PA), acrylic acid, methacrylic acid (MAA), acrolein, maleic anhydride (MA), glyoxal, phosgene, hydrocyanic acid or vinyl formamide (VFA). In a relatively large multitube reactor in which a large amount of heat of reaction is generated owing to the numerous catalyst tubes ( 17 ) and has to be removed, it is proposed that the ratio of tube spacing t to external tube diameter d a be made dependent on the reactor diameter or on the external tube bundle diameter d RBa . At an external diameter of the catalyst tube bundle ( 18 ) of more than 4 meters, a ratio of tube spacing d to external tube diameter d a of at least 1.3 is preferred.
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公开(公告)号：CZ292724B6
公开(公告)日：2003-12-17
申请号：CZ199996
申请日：1996-07-04
Applicant: BASF AG
Inventor： BECKER RAINER , KERSTEN SIEGFRIED , ROSS KARL-HEINZ , STADLER KLAUS PETER , HARRO WACHE , WAMBACH LUDWIG , WEYER HANS-JURGEN
IPC: C07C209/12 , C07C211/63
Abstract: In the present invention, there is described a process for preparing (2-chloroethyl)-ammonium chloride by reacting 1,2-dichloroethane with trimethyl amine. Which preparation process comprises mixing the 1,2-dichloroethane with the trimethyl amine at a temperature ranging from 50 to 100 degC and then increasing stepwise or continuously the temperature to 120 to 200 degC.
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Patent Agency Ranking
公开(公告)号：DE3631414A1
公开(公告)日：1988-03-24
申请号：DE3631414
申请日：1986-09-16
Applicant: BASF AG
Inventor： WAMBACH LUDWIG
IPC: B01D53/14 , C07D207/22 , C07D207/26 , C07D207/267 , C07D209/54 , C07D207/273 , C07D209/02
Abstract: alpha -Pyrrolidones and cyclic amidines Ia and Ib, respectively, for washing gases. (Ia) (Ib) where R1 and R2 are each C1-C8-alkyl, C1-C8-alkoxy, C3-C10-cycloalkyl or C3-C10-cycloalkoxy or are bonded to one another to form a ring, R3 is hydrogen, C1-C6-alkyl, phenyl or naphthyl and R4 and R5 are each hydrogen or C1-C4-alkyl, are prepared by a method in which an amine II (II) where R3' is hydrogen, tert-butyl, phenyl or naphthyl, is reacted with an alpha , beta -unsaturated carboxylic acid derivative III (III) where X is OR', -NR'R'', -NHR' or -NH2 and R' and R'' are each C1-C8-alkyl, C3-C8-cycloalkyl or phenyl, or with an alpha , beta -unsaturated nitrile IV (IV) in the presence of a free radical initiator, and, where R3' is hydrogen and it is intended to prepare a compound in which R3' is C1-C6-alkyl, the product obtainable in this procedure is reacted with an alkylating agent to introduce a C1-C6-alkyl group.
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公开(公告)号：MY125244A
公开(公告)日：2006-07-31
申请号：MYPI20001007
申请日：2000-03-14
Applicant: BASF AG
Inventor： CORR FRANZ , OLBERT GERHARD , REUTER PETER , WAMBACH LUDWIG , HAMMOM ULRICH
Abstract: THE PRESENT INVENTION RELATES TO MULTITUBE REACTOR AND THE USE OF SUCH A REACTOR FOR CARRYING OUT CATALYTIC GAS-PHASE REACTIONS, IN PARTICULAR FOR CARRYING OUT EXOTHERMIC AND ENDOTHERMIC CATALYTIC GAS-PHASE REACTIONS SUCH AS THE PREPARATION OF PHTHALIC ANYHYDRIDE (PA), ACRYLIC ACID, METHACRYLIC ACID (MAA), ACROLEIN, MAEIC ANHYDRIDE (MA), GLYOXAL, PHOSGENE, HYDROCYANIC ACID OR VINYL FORMAMIDE (VFA). IN A RELATIVELY LARGE MULTITUBE REACTOR IN WHICH A LARGE AMOUNT OF HEAT OF REACTION IS GENERATE OWING TO THE NUMEROUS CATALYST TUBES (17) AND HAS TO BE REMOVED, IT IS PROPOSED THAT THE RATIO OF TUBE SPACING t TO EXTERNAL TUBE DIAMETER da BE MADE DEPENDENT ON THE REACTOR DIAMETER OR ON THE EXTERNAL TUBE BUNDLE DIAMETER dRBa. AT THE EXTERNAL DIAMETER OF THE CATALYST TUBE BUNDLE (18) OF MORE THAN 4 METERS, A RATIO OF TUBE SPACING d TO EXTERNAL TUBE DIAMETER da OF AT LEAST 1.3 IS PREFER-RED.(FIGURE 3)
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公开(公告)号：DE50004079D1
公开(公告)日：2003-11-20
申请号：DE50004079
申请日：2000-03-15
Applicant: BASF AG
Inventor： OLBERT GERHARD , CORR FRANZ , REUTER PETER , WAMBACH LUDWIG , HAMMON ULRICH
Abstract: A multitube fixed bed reactor and the use of such a reactor for carrying out catalytic gas-phase reactions, in particular for carrying out exothermic and endothermic catalytic gas-phase reactions such as the preparation of phthalic anhydride (PA), acrylic acid, methacrylic acid (MAA), acrolein, maleic anhydride (MA), glyoxal, phosgene, hydrocyanic acid or vinyl formamide (VFA). In a relatively large multitube reactor in which a large amount of heat of reaction is generated owing to the numerous catalyst tubes ( 17 ) and has to be removed, it is proposed that the ratio of tube spacing t to external tube diameter d a be made dependent on the reactor diameter or on the external tube bundle diameter d RBa . At an external diameter of the catalyst tube bundle ( 18 ) of more than 4 meters, a ratio of tube spacing d to external tube diameter d a of at least 1.3 is preferred.
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公开(公告)号：MXPA01009012A
公开(公告)日：2002-01-01
申请号：MXPA01009012
申请日：2001-09-06
Applicant: BASF AG
Inventor： OLBERT GERHARD , CORR FRANZ , REUTER PETER , WAMBACH LUDWIG , HAMMON ULRICH
Abstract: A multitube fixed bed reactor and the use of such a reactor for carrying out catalytic gas-phase reactions, in particular for carrying out exothermic and endothermic catalytic gas-phase reactions such as the preparation of phthalic anhydride (PA), acrylic acid, methacrylic acid (MAA), acrolein, maleic anhydride (MA), glyoxal, phosgene, hydrocyanic acid or vinyl formamide (VFA). In a relatively large multitube reactor in which a large amount of heat of reaction is generated owing to the numerous catalyst tubes ( 17 ) and has to be removed, it is proposed that the ratio of tube spacing t to external tube diameter d a be made dependent on the reactor diameter or on the external tube bundle diameter d RBa . At an external diameter of the catalyst tube bundle ( 18 ) of more than 4 meters, a ratio of tube spacing d to external tube diameter d a of at least 1.3 is preferred.
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公开(公告)号：HU9601915A2
公开(公告)日：1997-05-28
申请号：HU9601915
申请日：1996-07-12
Applicant: BASF AG
Inventor： BECKER RAINER , KERSTEN SIEGFRIED , ROSS KARL-HEINZ , STADLER KLAUS PETER , WACHE HARRO , WAMBACH LUDWIG , WEYER HANS-JUERGEN
IPC: C07C209/12 , C07C211/63
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