公开(公告)号：ZA87794B

公开(公告)日：1988-10-26

申请号：ZA87794

申请日：1987-02-04

Applicant: BASF AG

Inventor： KROENER MICHAEL ,  SCHMIDT WILLI ,  OFTRING ALFRED ,  PROLL THEO ,  HARTMANN HEINRICH

IPC: C07C231/24 ,  C07C67/00 ,  C07C231/00 ,  C07C233/00 ,  C07C233/03 ,  C07C233/15 ,  C08F26/00 ,  C08F126/02 ,  C07C

公开(公告)号：NO870442A

公开(公告)日：1987-08-06

申请号：NO870442

申请日：1987-02-04

Applicant: BASF AG

Inventor： KROENER MICHAEL ,  SCHMIDT WILLI ,  OFTRING ALFRED ,  PROLL THEO ,  HARTMANN HEINRICH

IPC: C07C231/24 ,  C07C67/00 ,  C07C231/00 ,  C07C233/00 ,  C07C233/03 ,  C08F26/00 ,  C08F126/02 ,  C07C103/00

CPC classification number: C07C233/00

公开(公告)号：AU6828087A

公开(公告)日：1987-08-06

申请号：AU6828087

申请日：1987-02-04

Applicant: BASF AG

Inventor： KROENER MICHAEL ,  SCHMIDT WILLI ,  OFTRING ALFRED ,  PROLL THEO ,  HARTMANN HEINRICH

IPC: C07C231/24 ,  C07C67/00 ,  C07C231/00 ,  C07C233/00 ,  C07C233/03 ,  C07C233/15 ,  C08F26/00 ,  C08F126/02 ,  C07C102/00 ,  C07C103/127

公开(公告)号：PT84241A

公开(公告)日：1987-03-01

申请号：PT8424187

申请日：1987-02-03

Applicant: BASF AG

Inventor： KROENER MICHAEL ,  SCHMIDT WILLI ,  OFTRING ALFRED ,  PROLL THEO ,  HARTMANN HEINRICH

IPC: C07C231/24 ,  C07C67/00 ,  C07C231/00 ,  C07C233/00 ,  C07C233/03 ,  C07C233/15 ,  C08F26/00 ,  C08F126/02 ,  C07C103/00

公开(公告)号：CZ298267B6

公开(公告)日：2007-08-08

申请号：CZ43697

申请日：1997-02-12

Applicant: BASF AG

Inventor： MACHHAMMER OTTO ,  DAMS ALBRECHT ,  ECK BERND ,  PROLL THEO

IPC: C07C57/04 ,  C07C51/43 ,  C07C57/05 ,  C07C57/07

Abstract: Postup prípravy kyseliny (meth)akrylové zahrnující následující stupne: (I) katalytickou oxidaci propenu nebo izobutenu a/nebo akroleinu nebo methakroleinu v plynné fázi na kyselinu (meth)akrylovou zavzniku plynného reakcního produktu obsahujícího kyselinu (meth)akrylovou; (II) absorpci tohoto reakcního produktu za použití vysokovroucího rozpouštedla; (III) rozdelení rozpouštedla s absorbovaným produktem ze stupne (I), které se získá ve stupni (II), na rozpouštedlo a surovou (meth)akrylovou kyselinu pomocí destilace; (IV) vycištení surové (meth)akrylové kyseliny ze stupne (III) krystalizací za vzniku (meth)akrylové kyseliny; a (V) recirkulaci prinejmenším cásti výsledného matecného louhu dostupne (II) a/nebo stupne (III).

公开(公告)号：BR0210527A

公开(公告)日：2004-06-22

申请号：BR0210527

申请日：2002-06-21

Applicant: BASF AG

Inventor： PROLL THEO ,  MACHHAMMER OTTO ,  SCHINDLER G TZ-PETER ,  LLER-ENGEL KLAUS JOACHIM M

IPC: C07C45/34 ,  B01J27/199 ,  C07B61/00 ,  C07C45/33 ,  C07C45/35 ,  C07C47/22 ,  C07C51/235 ,  C07C57/055 ,  C07C253/26 ,  C07C255/08 ,  C07C5/333

Abstract: Partial oxidation products and/or ammoxidation products of an olefinic hydrocarbon A' are prepared by a process in which said olefinic hydrocarbon is produced during normal operation by partial dehydrogenation and/or oxydehydrogenation of hydrocarbon A and fed in from another source during partial or complete nonoperation of the dehydrogenation and/or oxydehydrogenation.

公开(公告)号：ES2168664T3

公开(公告)日：2002-06-16

申请号：ES97938814

申请日：1997-07-09

Applicant: BASF AG

Inventor： ECK BERND ,  MACHHAMMER OTTO ,  PROLL THEO ,  SCHLIEPHAKE VOLKER ,  MULLER-ENGEL KLAUS JOACHIM

IPC: C07C51/21 ,  C07C51/43 ,  C07C57/04 ,  C07C57/05 ,  C07C57/07

Abstract: A process for preparing acrylic acid or methacrylic acid comprises(a) preparing a gaseous product mixture having essentially the composition of a reaction mixture of the catalytic gas phase oxidation of C3-/C4-alkanes, -alkenes, -alkanols and/or -alkanals and/or precursors thereof to form acrylic acid or methacrylic acid, characterized by(b) condensing said product mixture,(c) crystallizing acrylic acid or methacrylic acid from the solution obtained in step (b), and(d) removing the resulting crystals from the mother liquor.

公开(公告)号：DE59803651D1

公开(公告)日：2002-05-08

申请号：DE59803651

申请日：1998-09-09

Applicant: BASF AG

Inventor： ECK BERND ,  MACHHAMMER OTTO ,  PROLL THEO ,  SCHLIEPHAKE VOLKER ,  THIEL JOACHIM ,  BROELLOS KLAUS

IPC: C07C51/43 ,  C07C51/44 ,  C07C57/07

Abstract: A process for preparing acrylic acid or methacrylic acid comprises preparing a gaseous product mixture having essentially the composition of a reaction mixture of the catalytic gas phase oxidation of C3-/C4-alkanes, -alkenes, -alkanols and/or -alkanals and/or precursors thereof to form acrylic acid or methacrylic acid. The product is removed from the gaseous product mixture by a process comprising the following steps:(a) condensing said gaseous product mixture,(b) crystallizing acrylic acid or methacrylic acid from the solution obtained in step (a),(c) removing the resulting crystals from the mother liquor, and(d) recycling at least a portion of said mother liquor from step (c) into step (a).

公开(公告)号：DE59706057D1

公开(公告)日：2002-02-21

申请号：DE59706057

申请日：1997-07-09

Applicant: BASF AG

Inventor： ECK BERND ,  MACHHAMMER OTTO ,  PROLL THEO ,  SCHLIEPHAKE VOLKER ,  MUELLER-ENGEL JOACHIM

IPC: C07C57/04 ,  C07C51/21 ,  C07C51/43 ,  C07C57/05 ,  C07C57/07

Abstract: A process for preparing acrylic acid or methacrylic acid comprises(a) preparing a gaseous product mixture having essentially the composition of a reaction mixture of the catalytic gas phase oxidation of C3-/C4-alkanes, -alkenes, -alkanols and/or -alkanals and/or precursors thereof to form acrylic acid or methacrylic acid, characterized by(b) condensing said product mixture,(c) crystallizing acrylic acid or methacrylic acid from the solution obtained in step (b), and(d) removing the resulting crystals from the mother liquor.

公开(公告)号：CZ2001271A3

公开(公告)日：2001-06-13

申请号：CZ2001271

申请日：1999-07-21

Applicant: BASF AG

Inventor： ECK BERND ,  HEILEK JOERG ,  SCHLIEPHAKE VOLKER ,  PROLL THEO ,  BROELLOS KLAUS ,  MACHHAMMER OTTO ,  THIEL JOACHIM

IPC: C07C51/43 ,  C07C57/07