公开(公告)号：DE10236279A1

公开(公告)日：2004-02-19

申请号：DE10236279

申请日：2002-08-08

Applicant: BASF AG

Inventor： SCHWIRTEN KURT ,  DISTELDORF WALTER ,  GOLFIER GUENTHER ,  PETERS JARREN

IPC: C07C67/58 ,  C07C67/60 ,  C07C67/48 ,  B01J38/00 ,  C07C69/44 ,  C07C69/80

Abstract: A method for removing esterification catalyst from crude plasticizer ester based on dicarboxylic acid and 8-13C alcohols, by treatment with aqueous alkali at 10-100 degrees C followed by separation of the hydrolyzed catalyst-containing aqueous phase under gravity, in which the crude ester is treated before or during phase separation with salts(s) of di- or multi-valent metal(s).

公开(公告)号：AU6758501A

公开(公告)日：2002-01-14

申请号：AU6758501

申请日：2001-07-04

Applicant: BASF AG

Inventor： BREITSCHEIDEL BORIS ,  SELBERDINGER RICHARD ,  ROSSATO KLAUS ,  STORZUM UWE ,  HOLZMANN JURGEN ,  DISTELDORF WALTER ,  UBLER CHRISTOPH ,  MORSBACH BERND ,  PETERS JARREN ,  GOLFIER GUNTER

IPC: C07B61/00 ,  C07C29/141 ,  C07C29/16 ,  C07C31/125 ,  C07C45/50 ,  C07C47/02 ,  C07C67/08 ,  C07C69/80 ,  C08K5/12 ,  C08L27/06

Abstract: A process is described for preparing mixtures of diesters of phthalic acid with decanols and tridecanols by reacting phthalic acid or a reactive derivative of phthalic acid with a mixture made from at least one decanol and at least one tridecanol. Mixtures obtainable in this way are also described, as is their use as plasticizers for molding compositions, and also mixtures of isomeric tridecanols suitable for preparing the mixtures of diesters.

公开(公告)号：CA2394764A1

公开(公告)日：2001-07-05

申请号：CA2394764

申请日：2000-12-12

Applicant: BASF AG

Inventor： MORSBACH BERND ,  DISTELDORF WALTER ,  BREITSCHEIDEL BORIS ,  HALLER CHRISTIANE ,  HOLZMANN JURGEN

IPC: C08G63/16 ,  C08G63/20 ,  C08K5/11 ,  C08L27/06 ,  C08L67/02

Abstract: The invention relates to polyesters that are appropriate as softeners and th at are obtainable by reacting aliphatic dicarboxylic acids, neopentylglycol, at least one further diol and a nonanol mixture. Said nonanol mixture substantially consists of 1-nonanol, monomethyl octanols, dimethyl heptanols and monoethyl heptanols. The invention further relates to the nonanol mixtur e and to the use of the inventive polyesters as softeners.

公开(公告)号：ES2153291B1

公开(公告)日：2001-07-01

申请号：ES9801411

申请日：1998-07-03

Applicant: BASF AG

Inventor： BESSLING BERND ,  KNAB JEAN WERNER ,  WELKER RUDIGER ,  DISTELDORF WALTER ,  LOHE BERN

IPC: B01J31/08 ,  B01D3/00 ,  B01D3/14 ,  B01J8/04 ,  B01J19/24 ,  B01J19/32 ,  C07B61/00 ,  C07C67/08 ,  C07C67/54 ,  C07C69/14 ,  C07C69/16

Abstract: A process for preparing esters from alcohol and carboxylic acid by a) feeding a mixture, comprising at least alcohol and/or carboxylic acid as educts, into a distillation column with separated sections containing reactive and conventional internals, wherein the reactive internals are arranged below the inlet of the mixture and conventional internals are arranged above the inlet of the mixture, b) reaction of the alcohol and the carboxylic acid in the reactive internals in presence of a catalyst, c) distillative separation of the evolving reaction mixture into the higher boiling ester and a lower boiling azeotrope containing alcohol, water and ester, wherein the ester accumulates in the bottom and the azeotrope is removed overhead, d) separation of the azeotrope in a phase separator in an aqueous phase and in an organic phase and the organic phase to be returned to the top of the column, wherein in step b) a heterogenous catalyst is utilized and in step c) the ester is taken off above the bottom as pure product between further conventional internals which differ in their arrangement from those in step a) and which are arranged above the inlet of a circulating evaporator.