公开(公告)号：DE50106594D1

公开(公告)日：2005-07-28

申请号：DE50106594

申请日：2001-11-21

Applicant: BASF AG

Inventor： OOST CARSTEN ,  KAIBEL GERD ,  LAAS HARALD ,  SCHMITT PETER ,  VON ERDEN JENS

IPC: B01D1/22 ,  B01D3/00 ,  B01D3/14 ,  B01D3/32 ,  C07D311/72

公开(公告)号：DE10359434A1

公开(公告)日：2005-07-21

申请号：DE10359434

申请日：2003-12-17

Applicant: BASF AG

Inventor： SZARVAS LASZLO ,  MASSONNE KLEMENS ,  LAAS HARALD ,  EXNER KAI MICHAEL ,  GLAS DETLEV

IPC: C07F9/54 ,  C07C403/00 ,  C07C1/34 ,  C07B61/00

Abstract: The present invention relates to a process for preparing quaternary phosphonium salts by reacting a ternary phosphine with an optionally substituted, saturated or monounsaturated or polyunsaturated electrophile having from 3 to 25 carbon atoms in ternary solvent mixtures.

公开(公告)号：RU2188823C2

公开(公告)日：2002-09-10

申请号：RU97121291

申请日：1997-12-22

Applicant: BASF AG

Inventor： BALDENIUS KAI-UWE ,  KAISER WULF ,  BOCKSTIEGEL BERNHARD ,  LAAS HARALD ,  SCHULZ BERNHARD ,  SCHMITT PETER ,  GLIETENBERG HELMUT

IPC: B01J27/138 ,  C07D311/72

公开(公告)号：AU2793402A

公开(公告)日：2002-06-03

申请号：AU2793402

申请日：2001-11-21

Applicant: BASF AG

Inventor： OOST CARSTEN ,  KAIBEL GERD ,  LAAS HARALD ,  SCHMITT PETER ,  ERDEN JENS VON

IPC: B01D1/22 ,  B01D3/00 ,  B01D3/14 ,  B01D3/32 ,  C07D311/72

公开(公告)号：DE10359433A1

公开(公告)日：2005-07-21

申请号：DE10359433

申请日：2003-12-17

Applicant: BASF AG

Inventor： EXNER KAI MICHAEL ,  MASSONNE KLEMENS ,  LAAS HARALD ,  GLAS DETLEV ,  SZARVAS LASZLO

IPC: C07B61/00 ,  C07C1/34 ,  C07C67/293 ,  C07C403/12 ,  C07C403/20

公开(公告)号：AT298330T

公开(公告)日：2005-07-15

申请号：AT01989492

申请日：2001-11-21

Applicant: BASF AG

Inventor： OOST CARSTEN ,  KAIBEL GERD ,  LAAS HARALD ,  SCHMITT PETER ,  VON ERDEN JENS

IPC: B01D1/22 ,  B01D3/00 ,  B01D3/14 ,  B01D3/32 ,  C07D311/72

公开(公告)号：CA2454367A1

公开(公告)日：2003-02-13

申请号：CA2454367

申请日：2002-07-09

Applicant: BASF AG

Inventor： RUMPF BERND ,  LAAS HARALD ,  VON ERDEN JENS ,  KINNER FRANK

IPC: B01D1/00 ,  B01D1/22 ,  B01D3/14 ,  C07D311/72

Abstract: The invention relates to a method for treating a product stream containing vitamin E acetate, consisting of the following stages: a) the product stream is fed to a thin-film evaporator, falling-film evaporator or flash evaporato r and a stream predominantly containing vitamin E acetate is drawn off as a bottom stream from said evaporator; b) the vapour stream from stage a) is fe d to a partial condensation consisting of at least two stages. The invention also relates to falling-film evaporators for separating substance mixtures, whereby one or more heat exchangers are directly integrated into the vapour chamber of the falling-film evaporator.

公开(公告)号：DE10135714A1

公开(公告)日：2003-02-06

申请号：DE10135714

申请日：2001-07-21

Applicant: BASF AG

Inventor： LAAS HARALD ,  ERDEN JENS VON ,  KINNER FRANK ,  RUMPF BERND

IPC: B01D1/00 ,  B01D1/22 ,  B01D3/14 ,  C07D311/72

Abstract: Processing of a vitamin E-acetate containing product stream, comprises: (1) feeding a product stream to a thin-film evaporator, falling film evaporator or flash evaporator where the sump stream predominantly comprises vitamin E-acetate; and (2) subjecting the evaporated stream from step (A) to an at least two step partial condensation.

公开(公告)号：DE19733503A1

公开(公告)日：1999-02-04

申请号：DE19733503

申请日：1997-08-01

Applicant: BASF AG

Inventor： BALDENIUS KAI-UWE ,  KAISER WULF ,  BOCKSTIEGEL BERNHARD ,  LAAS HARALD ,  SCHULZ BERNHARD ,  SCHMITT PETER ,  GLIETENBERG HELMUT

IPC: C07D311/72

Abstract: Preparation of alpha -tocopherol or alpha -tocopheryl acetate comprises reaction of 2,3,5-trimethylhydroquinone (TMH) with phytol or isophytol (IP) in the presence of a zinc halide condensation catalyst and a proton donor, optionally with a final esterification step using acetic anhydride. The reaction involves: (A) a water immiscible or poorly water-miscible non-polar solvent; and (B) 1-4 mole water per mole zinc halide.

公开(公告)号：CA1250307A

公开(公告)日：1989-02-21

申请号：CA446005

申请日：1984-01-25

Applicant: BASF AG

Inventor： LAAS HARALD ,  TAVS PETER ,  HANNEBAUM HEINZ ,  STROEZEL MANFRED

IPC: C07C46/08 ,  C07F15/06 ,  C07C50/04 ,  C07C119/10

Abstract: IMPROVED PROCESS FOR THE PREPARATION OF SALCOMINE AS WELL AS THE PREPARATION OF TRIMETHYL-p-BENZOQUINONE FROM TRIMETHYLPHENOL USING THE RESULTANT SALCOMINE of the Disclosuore Improved process for the preparation of salcomine useful as an oxidation catalyst for the oxidation of alkylated phenols to the corresponding alkylated p-benzo-quinones by reacting salicylaldehyde with ethylenediamine in a mole ratio of about 2:1 and a cobalt salt in a liquid reaction medium wherein the reaction medium is a linear or cyclic carboxamide which is disubstituted on the nitrogen, in particular dimethylformamide, and the cobalt salt is cobalt carbonate or with the cobalt hydroxide carbonate, 2 CoCO3.3 Co(OH)2.H2O. Preparation of the salcomine in accordance with the invention offers significant advantages, both in the preparation of the salcomine itself and in the subsequent oxidation of the trimethylphenol to trimethyl-p-benzoquinone utilizing the salcomine.