公开(公告)号：MY126887A

公开(公告)日：2006-10-31

申请号：MYPI20015305

申请日：2001-11-20

Applicant: BASF AG

Inventor： DR HOLGER BORCHERT ,  DR FRANK STEIN ,  DR GERD KAIBEL ,  ALEXANDER WECK ,  DR ROLF-HARTMUTH FISCHER ,  DR RALF-THOMAS RAHN ,  DR STEPHAN SCHLITTER ,  DR MARKUS R0XD6SCH

IPC: C07D307/08 ,  C07B61/00 ,  C07D307/33

Abstract: THE PRESENT INVENTION RELATES TO A PROCESS FOR THE GAS-PHASE HYDROGENATION OF C?-DICARBOXYLIC ACIDS AND/OR THEIR DERIVATIVES OVER A CATALYST BASED ON COPPER OXIDE TO GIVE SUBSTITUTED OR UNSUBSTITUTED Y-BUTYROLACTONE AND/OR TETRAHYDROFURAN, WHICH A FIRST REACTION ZONE IN WHICH THE C?-DICARBOXYLIC ACID AND /OR ITS DERIVATIVES IS/ARE REACTED TO GIVE A MIXTURE COMPRISING A SUBSTITUTED OR UNSUBSTITUTED TUTED Y-BUTROLACTONE AS MAIN PRODUCT AND A SUBSEQUENT SECOND REACTION ZONE IN WHICH THE SUBSTITUTED OR UNSUBSTITUTED Y-BUTYROLACTONE PRESENT IN THE MIXTURE FROM THE FIRST HYDROGENATION STEP IS REACTED AT A TEMPERATURE LOWER THAN THE TEMPERATURE IN THE FIRST HYDROGENATION STEP TO GIVE SUBSTITUTED OR UNSUBSTITUTED TETRAHYDROFURAN.

公开(公告)号：MY126658A

公开(公告)日：2006-10-31

申请号：MYPI20015567

申请日：2001-12-06

Applicant: BASF AG

Inventor： ALEXANDER WECK ,  DR ROLF-HARTMUTH FISCHER ,  DR RALF-THOMAS RAHN ,  DR MARKUS R0XD6SCH ,  DR BORCHERT HOLGER ,  DR STEPHAN SCHLITTER

IPC: C07D315/00 ,  B01J23/72 ,  B01J23/76 ,  B01J23/78 ,  B01J23/80 ,  B01J23/83 ,  B01J23/89 ,  B01J35/10 ,  B01J37/00 ,  B01J37/03 ,  C07B61/00 ,  C07D307/08 ,  C07D307/32 ,  C07D307/33

Abstract: A HYDROGENATION CATALYST WHICH IS SUITABLE, IN PARTICULAR, FOR THE HYDROGENATION OF MALEIC ANHYDRIDE AND ITS DERIVATIVES TO THF OR ITS DERIVATIVES COMPRISES COPPER OXIDE AND AT LEAST ONE FURTHER METAL OR COMPOUND THEREOF, PREFERABLY AN OXIDE, SELECTED FROM THE GROUP CONSISTING OF AI,Si, Zn, La, Ce, THE ELEMENTS OF GROUPS IIIA TO VIIIA AND THE ELEMENTS OF GROUPS IA AND IIA AND HAVING A PORE VOLUME OF > 0.01 ML/G FOR PORE DIAMETERS OF > 50 NM AND A RATIO OF THE PORE VOLUME OF MACROPORES HAVING A DIAMETER OF > 50 NM TO THE TOTAL PORE VOLUME FOR PORES HAVING A DIAMETER OF >4 NM OF > 10%.

公开(公告)号：MY140665A

公开(公告)日：2010-01-15

申请号：MYPI20063072

申请日：2006-06-28

Applicant: BASF AG

Inventor： GUNTHER WINDECKER ,  ALEXANDER WECK ,  MICHAEL STEINIGER DR ,  PETER BREDEHOFT JAN ,  BIANCA CARDONE ,  PETER KNAPPIK ,  DANY VANDEN HAUTTE ,  BERNARD PIERRE ,  BEATRIX HAFFNER

IPC: B01D53/14

Abstract: THE INVENTION RELATES TO A PROCESS FOR SEPARATING OFF MALEIC ANHYDRIDE FROM A GAS STREAM COMPRISING MALEIC ANHYDRIDE, IN WHICH A) THE GAS STREAM COMPRISING MALEIC ANHYDRIDE IS BROUGHT INTO CONTACT WITH A LIQUID ABSORBENT PHASE COMPRISING AT LEAST ONE HIGH-BOILING INERT ABSORPTION MEDIUM FOR MALEIC ANHYDRIDE AND B) MALEIC ANHYDRIDE IS SEPARATED OFF FROM THE RESULTING LIQUID ABSORBATE PHASE BY STRIPPING WITH A HYDROGEN-COMPRISING GAS AS STRIPPING MEDIUM IN A COLUMN, WHEREIN THE STRIPPING MEDIUM IS FED IN AT TWO POINTS ON THE COLUMN WHICH ARE AT LEAST ONE THEORETICAL PLATE APART.

公开(公告)号：MY131137A

公开(公告)日：2007-07-31

申请号：MYPI20032156

申请日：2003-06-10

Applicant: BASF AG

Inventor： DR MICHAEL HESSE ,  ALEXANDER WECK ,  DR ROLF-HARTMUTH FISCHER ,  DR STEPHAN SCHLITTER ,  DR MARKUS R0XD6SCH ,  DR GUNNAR HEYDRICH ,  DR NILS BOTTKE ,  GUNTHER WINDECKER ,  DR HOLGER BORCHERT ,  DR MARKUS SCHUBERT

IPC: C07C29/149 ,  C07B61/00 ,  C07C31/20

Abstract: THE PRESENT INVENTION RELATES TO A PROCESS FOR PREPARING OPTIONALLY ALKYL-SUBSTITUTED 1,4-BUTANEDIOL BY TWO-STAGE CATALYTIC HYDROGENATION IN THE GAS PHASE OF C4-DICARBOXYLIC ACIDS AND/OR OF DERIVATIVES THEREOF HAVING THE FOLLOWING STEPS: A) INTRODUCING A GAS STREAM OF A C4-DICARBOXYLIC ACID OR OF A DERIVATIVE THEREOF AT FROM 200 TO 300?C AND FROM 10 TO 100 BAR INTO A FIRST REACTOR OR INTO A FIRST REACTION ZONE OF A REACTOR AND CATALYTICALLY HYDROGENATING IT IN THE GAS PHASE TO A PRODUCT WHICH CONTAINS MAINLY OPTIONALLY ALKYL-SUBSTITUTED ?-BUTYROLACTONE; B) INTRODUCING THE PRODUCT STREAM OBTAINED IN THIS WAY INTO A SECOND REACTOR OR INTO A SECOND REACTION ZONE OF A REACTOR AT A TEMPERATURE OF FROM 140?C TO 260?C AND CATALYTICALLY HYDROGENATING IT IN THE GAS PHASE TO OPTIONALLY ALKYL-SUBSTITUTED 1,4-BUTANEDIOL; STEPS A) AND B) BEING CARRIED OUT AT THE SAME PRESSURE; C) REMOVING THE DESIRED PRODUCT FROM INTERMEDIATES, BY-PRODUCTS AND ANY UNCONVERTED REACTANTS; D) OPTIONALLY RECYCLING UNCONVERTED INTERMEDIATES INTO ONE OR BOTH HYDROGENATION STAGES,SAID HYDROGENATION STAGES EACH USING A CATALYST WHICH COMPRISES 5% BY WEIGHT,PREFERABLY FROM 5 TO 95% BY WEIGHT, IN PARTICULAR FROM 20 TO 90% BY WEIGHT, OF AN OXIDIC SUPPORT, AND THE PRODUCT MIXTURE REMOVED FROM THE FIRST HYDROGENATION STAGE BEING INTRODUCED WITHOUT FURTHER PURIFICATION INTO THE SECOND HYDROGENATION STAGE.

公开(公告)号：MY127165A

公开(公告)日：2006-11-30

申请号：MYPI20015603

申请日：2001-12-10

Applicant: BASF AG

Inventor： DR MICHAEL HESSE ,  DR FRANK STEIN ,  ALEXANDER WECK ,  DR RALF-THOMAS RAHN ,  DR STEPHAN SCHLITTER ,  DR MARKUS R0XD6SCH ,  DR BORCHERT HOLGER ,  DR ROLF-HARTMUTH FISCHER

IPC: C07D307/08 ,  C07B61/00 ,  C07C51/36 ,  C07C55/10 ,  C07D307/32 ,  C07D307/33

Abstract: C?-DICARBOXYLIC ACIDS OR DERIVATIVES THEREOF ARE HYDROGENATED IN THE GAS PHASE IN A FLUIDIZED-BED REACTOR. IT IS POSSIBLE TO USE CATALYST COMPOSITIONS KNOWN PER SE.

公开(公告)号：MY127153A

公开(公告)日：2006-11-30

申请号：MYPI20010089

申请日：2001-01-10

Applicant: BASF AG

Inventor： DR OTTO MACHHAMMER ,  DR PETER ZEHNER ,  DR UWE STABEL ,  DR CLAUS HECHLER ,  ALEXANDER WECK ,  GERHARD OLBERT

IPC: C07D307/60 ,  F28F3/00 ,  B01J8/02 ,  B01J19/24 ,  B01J35/04 ,  C07C51/215 ,  C07C57/145

Abstract: A PROCESS FOR THE PREPARATION OF MALEIC ANHYDRIDE BY HETEROGENEOUSLY CATALYZED GASPHASE OXIDATION IN A REACTOR WITH FEED FOR THE REACTION MIXTURE (1) AT ONE END OF THE REACTOR AND DISCHARGE OF THE PRODUCT MIXTURE (2) AT THE OPPOSITE END OF THE REACTOR, AND WITH DEVICES FOR DISSIPATING THE HEAT OF REACTION WHICH ARE ARRANGED IN THE REACTOR INTERIOR AND THROUGH WHICH A HEATEXCHANGE MEDIUM FLOWS AND WHICH ARE DESIGNED AS HEAT-EXCHANGER PLATES (8).(FIG 1,1A)

公开(公告)号：MY126926A

公开(公告)日：2006-10-31

申请号：MYPI20011883

申请日：2001-04-20

Applicant: BASF AG

Inventor： DR GERD KAIBEL ,  ALEXANDER WECK ,  DR RALF-THOMAS RAHN

IPC: C07D307/08 ,  B01D3/14 ,  B01D3/26 ,  B01D3/42 ,  C07C27/28 ,  C07C29/80 ,  C07C31/20 ,  C07D307/33

Abstract: IN A PROCESS FOR THE CONTINUOUS FRACTIONAL DISTILLATION OF MIXTURES COMPRISING TETRAHYROFURAN, ?-BUTYROLACTONE AND/OR 1,4-BUTANEDIOL TO GIVE AT LEAST THREE FRACTIONS, THE FRACTIONATION IS CARRIED OUT IN AN ASSEMBLY OF DISTLLATION COLUMNS (K1A, K1B, K2, K3) COMPRISING AT LEAST ONE DIVIDING WALL COLUMN OR AT LEAST ONE ASSEMBLY OF THERMALLY COUPLED CONVENTIONAL DISTILLATION COLUMNS. (FIG.8)