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公开(公告)号:AT302178T
公开(公告)日:2005-09-15
申请号:AT00958412
申请日:2000-08-10
Applicant: BASF AG
Inventor: PESCHEL WERNER , BESSLING BERND , REUTER PETER , LORZ PETER MICHAEL , ULRICH BERNHARD , KNAB JEAN WERNER , KUMMER MATTHIAS , RUEHL THOMAS
IPC: B01D3/00 , B01D3/10 , B01D3/14 , C07C51/573 , C07C63/16 , C07D307/89
Abstract: On-spec phthalic anhydride is prepared by distillative purification of crude phthalic anhydride by a process in which crude phthalic anhydride is fed to a distillation column which is operated at reduced pressure, the low boilers are removed at the top or in the vicinity of the top of the distillation column and the on-spec phthalic anhydride is removed from the column via a side take-off.
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公开(公告)号:ES2246249T3
公开(公告)日:2006-02-16
申请号:ES00958412
申请日:2000-08-10
Applicant: BASF AG
Inventor: PESCHEL WERNER , BESSLING BERND , REUTER PETER , LORZ PETER MICHAEL , ULRICH BERNHARD , KNAB JEAN WERNER
IPC: B01D3/00 , B01D3/10 , B01D3/14 , C07C51/573 , C07C63/16 , C07D307/89
Abstract: Procedimiento para la obtención de anhídrido de ácido ftálico correspondiente a especificación mediante purificación por destilación de anhídrido de ácido ftálico crudo, caracterizado porque se alimenta anhídrido de ácido ftálico crudo a una columna de destilación, que se acciona a presión reducida, se extrae los productos de bajo punto de ebullición en la cabeza o en la proximidad de la cabeza de la columna de destilación, y se extrae el anhídrido de ácido ftálico correspondiente a especificación a través de una descarga lateral de la columna.
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公开(公告)号:DE19824532A1
公开(公告)日:1999-12-09
申请号:DE19824532
申请日:1998-06-03
Applicant: BASF AG
Inventor: HEIDEMANN THOMAS , ROSOWSKI FRANK , LINDEN GERD , SEUFERT MICHAEL , HEFELE GERHARD , LORZ PETER MICHAEL
IPC: B01J23/22 , B01J27/198 , B01J37/02 , C07C51/265 , C07C51/31 , C07C63/16 , B01J31/06 , C07C51/215 , C07C51/255 , C07D307/89
Abstract: The invention relates to a method for producing shell catalysts for the catalytic vapor-phase oxidation of aromatic carboxylic acids and/or carboxylic acid anhydrides comprised of a supporting core and of catalytically active metal oxides which are deposited in a shell-shaped manner on said supporting core. The inventive catalysts are obtained by spraying an aqueous active mass suspension, said suspension containing the active metal oxides, at higher temperatures onto the hot supporting material which has a temperature ranging from 50 to 450 DEG C. The aqueous active mass suspension contains 1 to 10 wt. %, with regard to the solid content of the active mass suspension, of a binding agent comprised of A) a polymerizate obtained by radical polymerization, containing 5 to 100 wt. % of monomers (a) in the form of ethylenically unsaturated acid anhydrides or ethylenically unsaturated dicarboxylic acids whose carboxyl groups can form an anhydride and containing 0 to 95 wt. % monoethylenically unsaturated monomers (b) with the provision that the monomers (a) and (b) comprise, on average, a maximum of 6 carbon atoms which are not functionalized with groups containing oxygen, and of B) an alkanolamine having at least 2 OH groups, a maximum of 2 nitrogen atoms and a maximum of 8 C-atoms, whereby the weight ratio A:B ranges from 1:0.05 to 1:1.
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公开(公告)号:ES2097056T3
公开(公告)日:1997-03-16
申请号:ES94921615
申请日:1994-06-20
Applicant: BASF AG
Inventor: PACIELLO ROCCO , ROPER MICHAEL , KNEUPER HEINZ-JOSEF , LANGGUTH ERNST , LORZ PETER MICHAEL
IPC: B01J31/28 , C07B61/00 , C07C45/50 , C07C47/02 , C07F9/6571 , C07F9/6574 , C07F15/00
Abstract: PCT No. PCT/EP94/01999 Sec. 371 Date Aug. 7, 1995 Sec. 102(e) Date Aug. 7, 1995 PCT Filed Jun. 20, 1994 PCT Pub. No. WO95/00525 PCT Pub. Date Jan. 5, 1995Phosphorus-containing calixarenes of the general formula I I and a process for their preparation are described. Additionally, a process for the preparation of aldehydes by the hydroformylation of C3-C20-olefins by means of rhodium or ruthenium carbonyl complexes, in which the phosphorus-containing calixarenes of the formula I are used as ligands, is described.
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公开(公告)号:ID28000A
公开(公告)日:2001-05-03
申请号:ID20002517
申请日:1999-06-02
Applicant: BASF AG
Inventor: HEIDEMANN THOMAS , ROSOWSKI FRANK , LINDEN GERD , SEUFERT MICHAEL , HEFELE GERHARD , LORZ PETER MICHAEL
IPC: B01J23/22 , B01J27/198 , B01J37/02 , C07C51/265 , C07C51/31 , C07C63/16
Abstract: The invention relates to a method for producing shell catalysts for the catalytic vapor-phase oxidation of aromatic carboxylic acids and/or carboxylic acid anhydrides comprised of a supporting core and of catalytically active metal oxides which are deposited in a shell-shaped manner on said supporting core. The inventive catalysts are obtained by spraying an aqueous active mass suspension, said suspension containing the active metal oxides, at higher temperatures onto the hot supporting material which has a temperature ranging from 50 to 450° C. The aqueous active mass suspension contains 1 to 10 wt. %, with regard to the solid content of the active mass suspension, a binding agent comprised of A) a polymerizate obtained by radical polymerization, containing 5 to 100 wt. % of monomers (a) in the form of ethylenically unsaturated acid anhydrides or ethylenically unsaturated dicarboxylic acids whose carboxyl groups can form an anhydride and containing 0 to 95 wt. % monoethylenically unsaturated monomers (b) with the provision that the monomers (a) and (b) comprise, on average, a maximum of 6 carbon atoms which are not functionalized with groups containing oxygen, and of B) an alkanolamine having at least 2 OH groups, a maximum of 2 nitrogen atoms and a maximum of 8 C-atoms, whereby the weight ratio A:B ranges from 1:0.05 to 1:1.
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公开(公告)号:AU6994300A
公开(公告)日:2001-03-19
申请号:AU6994300
申请日:2000-08-10
Applicant: BASF AG
Inventor: PESCHEL WERNER , BESSLING BERND , REUTER PETER , LORZ PETER MICHAEL , ULRICH BERNHARD , KNAB JEAN WERNER , KUMMER MATTHIAS , RUHL THOMAS
IPC: B01D3/00 , B01D3/10 , B01D3/14 , C07C51/573 , C07C63/16 , C07D307/89
Abstract: On-spec phthalic anhydride is prepared by distillative purification of crude phthalic anhydride by a process in which crude phthalic anhydride is fed to a distillation column which is operated at reduced pressure, the low boilers are removed at the top or in the vicinity of the top of the distillation column and the on-spec phthalic anhydride is removed from the column via a side take-off.
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公开(公告)号:DE19939629A1
公开(公告)日:2001-02-22
申请号:DE19939629
申请日:1999-08-20
Applicant: BASF AG
Inventor: PESCHEL WERNER , BESLING BERND , REUTER PETER , LORZ PETER MICHAEL , ULRICH BERNHARD
IPC: B01D3/00 , B01D3/10 , B01D3/14 , C07C51/573 , C07C63/16 , C07D307/89
Abstract: Production of phthalic anhydride involves the distillation of crude PA under reduced pressure. Production of phthalic anhydride (PA) which complies with specifications involves the distillation of crude PA under reduced pressure in a column from which the volatiles are taken off at or near the top of the column and the pure PA is taken off at a side arm.
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