公开(公告)号：ES2069350T3

公开(公告)日：1995-05-01

申请号：ES92111113

申请日：1992-07-01

Applicant: BASF AG

Inventor： GEHRER EUGEN DR ,  HARDER WOLFGANG DR ,  KNUTH BERNHARD DR ,  VOGEL HERBERT DR

IPC: B01J31/02 ,  C07B61/00 ,  C07C45/00 ,  C07C45/75 ,  C07C49/17 ,  C07D277/22 ,  C07D277/34

公开(公告)号：DE4335172A1

公开(公告)日：1995-04-20

申请号：DE4335172

申请日：1993-10-15

Applicant: BASF AG

Inventor： DOCKNER TONI DR ,  NESTLER GERHARD DR ,  HERBST HOLGER DR ,  LERMER HELMUT DR ,  MARTAN HANS DR ,  VOGEL HERBERT DR ,  EXNER HERBERT DR

IPC: C07C57/04 ,  C07C51/487 ,  C07C57/055 ,  C07C57/07 ,  C07C57/075 ,  C07C51/64

Abstract: A process for the purification of crude (meth)acrylic acid in which the crude (meth)acrylic acid is worked up by distillation after addition of a primary amine compound and of an organic sulphonic acid.

公开(公告)号：CZ386792A3

公开(公告)日：1993-12-15

申请号：CS386792

申请日：1992-12-23

Applicant: BASF AG

Inventor： DUEMBGEN GERD DR ,  FIEDLER ECKHARD DR ,  HAMMON ULRICH DR ,  THIESSEN FRITZ DR ,  VOGEL HERBERT DR

IPC: C07C51/44 ,  C07C51/487 ,  C07C51/50 ,  C07C57/04 ,  C07C57/055 ,  C07C57/07

公开(公告)号：DE4201697A1

公开(公告)日：1993-07-29

申请号：DE4201697

申请日：1992-01-23

Applicant: BASF AG

Inventor： DUEMBGEN GERD DR ,  FIEDLER ECKHARD DR ,  HAMMON ULRICH DR ,  THIESSEN FRITZ DR ,  VOGEL HERBERT DR

IPC: C07C51/44 ,  C07C51/487 ,  C07C51/50 ,  C07C57/04 ,  C07C57/055 ,  C07C57/07

公开(公告)号：DE59602040D1

公开(公告)日：1999-07-08

申请号：DE59602040

申请日：1996-03-01

Applicant: BASF AG

Inventor： HEFNER WERNER DR ,  MACHHAMMER OTTO DR ,  NEUMANN HANS-PETER DR ,  TENTEN ANDREAS DR ,  RUPPEL WILHELM DR ,  VOGEL HERBERT DR

IPC: C07C27/00 ,  C07C27/14 ,  C07C45/35 ,  C07C47/22 ,  C07C51/25 ,  C07C57/04 ,  C07C57/05 ,  C07C57/055

Abstract: In continuous gas phase oxidn. of C3H6 to acrolein (I) and/or acrylic acid (II) with heterogeneous catalyst in an oxidn. reactor, the charge gas mixt. (III) contains only inert diluent gas(es) (IIIA) in addn. to C3H6 and O2 and (pt. of) (IIIA) is sepd. from the prodn. gas mixt. and recycled to the oxidn. reactor. The novelty is that (IIIA) consists of over 85 vol. % 1-5C satd. hydrocarbon(s).

公开(公告)号：CZ285212B6

公开(公告)日：1999-06-16

申请号：CZ247694

申请日：1994-10-07

Applicant: BASF AG

Inventor： DOCKNER TONI DR ,  NESTLER GERHARD DR ,  HERBST HOLGER DR ,  LERMER HELMUT DR ,  MARTAN HANS DR ,  VOGEL HERBERT DR ,  EXNER HERBERT DR

IPC: C07C57/04 ,  C07C51/487 ,  C07C57/055 ,  C07C57/07 ,  C07C57/075

Abstract: A process for the purification of crude (meth)acrylic acid in which the crude (meth)acrylic acid is worked up by distillation after addition of a primary amine compound and of an organic sulphonic acid.

公开(公告)号：DE19747790C1

公开(公告)日：1998-11-26

申请号：DE19747790

申请日：1997-10-29

Applicant: BASF AG

Inventor： JUNG MATTHIAS ,  ROSSKOPP DORIS ,  SCHIERBAUM BURKHARD ,  VOGEL HERBERT DR ,  HANSEN HANSPETER DR ,  ZIPPERER BERNHARD DR

IPC: C07C51/48 ,  C07C59/00 ,  B01D11/00 ,  C07B63/00 ,  C07C51/41 ,  C07C51/44 ,  C07C59/08

Abstract: - Continuous concentration of dilute aqueous solutions of hydroxycarboxylic acids (I) comprises (a) extracting (I) with an optimised extractant system of an organic solvent (II) and an alkylamine (III); (b) distilling (II) from the extract; and (c) extracting (I) from the residue as water-soluble salt with an aqueous ammonia or alkylamine (IV) solution.

公开(公告)号：ES2116795T3

公开(公告)日：1998-07-16

申请号：ES96103128

申请日：1996-03-01

Applicant: BASF AG

Inventor： HEFNER WERNER DR ,  MACHHAMMER OTTO DR ,  NEUMANN HANS-PETER DR ,  TENTEN ANDREAS DR ,  RUPPEL WILHELM DR ,  VOGEL HERBERT DR

IPC: C07B35/04 ,  C07B41/06 ,  C07B41/08 ,  C07C27/00 ,  C07C45/32 ,  C07C45/35 ,  C07C47/22 ,  C07C51/235 ,  C07C51/25 ,  C07C51/265 ,  C07C57/05 ,  C07D301/08

Abstract: Continuous gas phase partial oxidn. of an organic cpd. (I) with heterogeneous catalyst in an oxidn. reactor uses a charge gas mixt. contg. (I) O2 and an inert diluent gas (II), which consists partly of combustible gases (IIA). The novelty is that the (IIA) fraction of (II) in the prod. gas stream leaving the oxidn. reactor is not recycled to partial oxidn. but used in another chemical reaction.

公开(公告)号：CZ9600735A3

公开(公告)日：1996-10-16

申请号：CZ73596

申请日：1996-03-08

Applicant: BASF AG

Inventor： WERNER HEFNER DR ,  OTTO MACHHAMMER DR ,  NEUMANN HANS-PETER DR ,  TENTEN ANDREAS DR ,  RUPPEL WILHELM DR ,  VOGEL HERBERT DR

IPC: C07B35/04 ,  C07B41/06 ,  C07B41/08 ,  C07C27/00 ,  C07C45/35 ,  C07C47/22 ,  C07C51/235 ,  C07C51/25 ,  C07C51/265 ,  C07C57/05 ,  C07D301/08

CPC classification number: C07D301/08 ,  C07C45/35 ,  C07C51/235 ,  C07C51/25 ,  C07C51/252 ,  C07C51/265 ,  C07C47/22

公开(公告)号：DE19508532A1

公开(公告)日：1996-09-12

申请号：DE19508532

申请日：1995-03-10

Applicant: BASF AG

Inventor： HEFNER WERNER DR ,  MACHHAMMER OTTO DR ,  NEUMANN HANS-PETER DR ,  TENTEN ANDREAS DR ,  RUPPEL WILHELM DR ,  VOGEL HERBERT DR

IPC: C07C45/35 ,  C07C51/25 ,  C07C57/05 ,  C07C47/22

Abstract: In continuous gas phase oxidn. of C3H6 to acrolein (I) and/or acrylic acid (II) with heterogeneous catalyst in an oxidn. reactor, the charge gas mixt. (III) contains only inert diluent gas(es) (IIIA) in addn. to C3H6 and O2 and (pt. of) (IIIA) is sepd. from the prodn. gas mixt. and recycled to the oxidn. reactor. The novelty is that (IIIA) consists of over 85 vol. % 1-5C satd. hydrocarbon(s).