公开(公告)号：CA2492261C

公开(公告)日：2010-09-28

申请号：CA2492261

申请日：2003-07-14

Applicant: BASF AG

Inventor： GOEBBEL HANS-GEORG ,  GERLACH TILL ,  WEGNER GUENTER ,  FUCHS HARTWIG ,  UNVERRICHT SIGNE ,  SALDEN AXEL

IPC: C07C29/141 ,  C07B61/00 ,  C07C33/025

Abstract: Disclosed is a method for selective hydrogenation of citronellal to form citronellol, wherein a liquid phase in which the citronellal is dissolved and in which particles of a catalyst are suspended, said catatalyst resulting in preferential hydrogenation of carbon-oxygen double bonds in relation to carbon carbon bonds, is guided in the presence of a gas containing hydrogen through a device which inhibits the transport of the catalyst particles.

公开(公告)号：AT384034T

公开(公告)日：2008-02-15

申请号：AT03763837

申请日：2003-07-14

Applicant: BASF AG

Inventor： GOEBBEL HANS-GEORG ,  GERLACH TILL ,  WEGNER GUENTER ,  FUCHS HARTWIG ,  UNVERRICHT SIGNE ,  SALDEN AXEL

IPC: C07C29/141 ,  C07B61/00 ,  C07C33/025

Abstract: A process is described for selectively hydrogenating citronellal to citronellol in which a liquid phase, in which the citronellal is dissolved and particles of a catalyst are suspended which is capable of preferentially hydrogenating carbon-oxygen double bonds over carbon-carbon double bonds, is conducted through a device which inhibits the transport of the catalyst particles in the presence of a hydrogen-containing gas.

公开(公告)号：PL371671A1

公开(公告)日：2005-06-27

申请号：PL37167102

申请日：2002-02-15

Applicant: BASF AG

Inventor： NOE RALF ,  HIBST HARTMUT ,  HALBRITTER KLAUS ,  MAAS-BRUNNER MELANIE ,  BREITSCHEIDEL BORIS ,  KAIBEL GERD ,  MASSONNE KLEMENS ,  SALDEN AXEL ,  EBEL KLAUS ,  BERGNER EIKE JOHANNES ,  HAESE FRANK

IPC: C07C51/087 ,  C07C51/347 ,  C07C61/24 ,  C07C61/29 ,  C07C67/08 ,  C07C69/75 ,  C07C69/753 ,  C08K5/12 ,  C07C67/02 ,  C07C51/567

Abstract: The invention relates to a process for preparing cyclohexanedicarboxylic acids or derivatives thereof, such as esters and/or anhydrides, encompassing the reaction of diene/maleic acid anhydride mixtures, in particular of butadiene/maleic acid anhydride mixtures or of mixtures of maleic acid anhydrides and C5-dienes to give alkyl-substituted or unsubstituted cyclohexenedicarboxylic acid anhydrides in the condensed phase, ester formation, and then hydrogenation to give the corresponding cyclohexanedicarboxylic acid derivative, and also to the use of the cyclohexanedicarboxylic acids or derivatives thereof prepared according to the invention as plasticizers for plastics.

公开(公告)号：DE10330934A1

公开(公告)日：2005-02-17

申请号：DE10330934

申请日：2003-07-08

Applicant: BASF AG

Inventor： SALDEN AXEL ,  LANZENDOERFER FRANZ ,  UNVERRICHT SIGNE

IPC: B01D3/14 ,  C07C45/82 ,  C07C47/21

Abstract: A method for the continuous isolation of citronellal or citronellol from crude mixtures involves rectification in a partition-wall column with upper and lower combining column sections, a side feed inlet and a side take-off for the pure product. A rectification method for the continuous isolation of citronellal (I) or citronellol (II) from a crude mixture containing at least one of these compounds, involves (a) feeding the mixture into the side of a feeder column (3, 4) with a concentrating section (3) above the feed inlet (9) and a stripper section (4) below (9), (b) providing an upper combining column (2) communicating with the top of section (3) and fitted with a condenser (12) at the top of (2), plus another combining column (7) with a heater (14) at the bottom of the stripper (4), (c) providing a take-off column (5, 6) which communicates with columns (2) and (7), and (d) taking off (I) or (II) as a side product from column (5, 6), plus low-boilers from the top of column (2) and high-boilers from the bottom of column (7).