公开(公告)号：DE102005049135A1

公开(公告)日：2007-04-19

申请号：DE102005049135

申请日：2005-10-14

Applicant: BASF AG

Inventor： JOHANN THORSTEN ,  MAAS STEFFEN ,  SCHLITTER STEPHAN ,  SIRCH TILMAN ,  KOCH MICHAEL ,  RITTINGER STEFAN ,  STEINIGER MICHAEL ,  PETERSEN HERMANN

IPC: B01J35/02 ,  B01J37/03 ,  C07C29/141

公开(公告)号：DE50207749D1

公开(公告)日：2006-09-14

申请号：DE50207749

申请日：2002-12-06

Applicant: BASF AG

Inventor： SIRCH TILMAN ,  KAIBEL GERD ,  WARTINI ALEXANDER ,  DERNBACH MATTHIAS

IPC: C07C29/38 ,  C07C29/80 ,  C07B61/00 ,  C07C29/141 ,  C07C31/22

Abstract: Trimethylolpropane is isolated from a reaction mixture which has been obtained by reaction of n-butyraldehyde with formaldehyde in the presence of a base and, if appropriate, hydrogenation of the resulting mixture by distilling the mixture by means of a dividing wall column or a distillation column with a precolumn or a distillation column with an after-column. The process has low capital costs and a low energy consumption and gives reduced formation of high-boiling by-products.

公开(公告)号：CA2547261A1

公开(公告)日：2006-05-11

申请号：CA2547261

申请日：2005-10-27

Applicant: BASF AG

Inventor： TEBBEN GERD-DIETER ,  DIEFENBACHER ARMIN ,  KRAUSE ALFRED ,  HECK LUDWIG E ,  BORGEL FRANZ ,  SIRCH TILMAN

IPC: C07C29/149 ,  C07C31/20

Abstract: The present invention provides a process for preparing 1,6-hexanediol from a carboxylic acid mixture which comprises adipic acid, 6-hydroxycaproic acid and small amounts of 1,4-cyclohexanediols and is obtained as a by-product in the oxidation of cyclohexane to cyclohexanone/cyclohexanol with oxygen or oxygen-containing gases and by water extraction of the reaction mixture, by esterification of the acids and hydrogenation, in which a) the mono- and dicarboxylic acids present in the aqueous dicarboxylic acid mixture are reacted with a low molecular weight alcohol to give the corresponding carboxylic esters, b) the resulting esterification mixture is freed of excess alcohol and low boilers in a first distillation stage, c) a separation of the bottom product is carried out in a second distillation stage into an ester fraction substantially free of 1,4-cyclohexanediols and a fraction comprising at least the majority of the 1,4-cyclohexanediols, d) the ester fraction substantially free of 1,4-cyclohexanediols is catalytically hydrogenated and e) 1,6-hexanediol is obtained in a purifying distillation stage from the hydrogenation effluent while removing an alcohol-low boiler mixture in a manner known per se, wherein alcohol is removed by a membrane system from the mixtures, obtained after the esterification in stage b) and/or after the hydrogenation in stage e), of alcohols and low boilers and recycled into the esterification.

公开(公告)号：MXPA06000481A

公开(公告)日：2006-04-05

申请号：MXPA06000481

申请日：2004-07-07

Applicant: BASF AG

Inventor： SIRCH TILMAN

IPC: B01J21/06 ,  B01J23/46 ,  B01J35/00 ,  B01J35/10 ,  B01J37/06 ,  B01J37/14 ,  B01J37/18 ,  C07C29/38 ,  C07C29/88

Abstract: Se describe un metodo para retirar formiato de trialquilamonio de metilolalcanos obtenidos mediante la condensacion del formaldehido con un aldehido mas elevado. El metodo inventivo se caracteriza porque el formiato de trialquilamonio se descompone a una temperatura incrementada en un catalizador que se coloca en un soporte de dioxido de titanio y contiene rutenio en presencia de un gas que contiene hidrogeno. El metodo hace posible separar el formiato de trialquilamonio de metilolalcanos producidos de acuerdo con el metodo Cannizzaro organico y el metodo dr hidratacion.

公开(公告)号：DE50301693D1

公开(公告)日：2005-12-22

申请号：DE50301693

申请日：2003-05-21

Applicant: BASF AG

Inventor： WARTINI ALEXANDER ,  DERNBACH MATTHIAS ,  HACKMANN CLAUS ,  SIRCH TILMAN

IPC: C07C29/38 ,  C07C31/22 ,  C08G65/26 ,  C08G65/28

Abstract: The invention provides a process for preparing polyetherols of polyhydric alcohols by reacting an alkylene oxide with the appropriate polyhydric alcohol in the presence of a base and in the presence or absence of a solvent, wherein the polyhydric alcohol used has a formaldehyde acetal content of less than 500 ppm.

公开(公告)号：BR0311150A

公开(公告)日：2005-03-15

申请号：BR0311150

申请日：2003-05-21

Applicant: BASF AG

Inventor： WARTINI ALEXANDER ,  DERNBACH MATTHIAS ,  HACKMANN CLAUS ,  SIRCH TILMAN

IPC: C08G65/26

公开(公告)号：DE10316658A1

公开(公告)日：2004-10-28

申请号：DE10316658

申请日：2003-04-11

Applicant: BASF AG

Inventor： MODI ANDREA ,  FISCHER ROLF-HARTMUTH ,  KRUG THOMAS ,  SIRCH TILMAN

IPC: C07C67/31 ,  C07C67/60 ,  C07C29/16 ,  C07C69/675

Abstract: Alkyl 6-hydroxycaproates (I) preparation comprises reacting alkyl 2-, 3- and/or 4-pentenoates (II) with carbon monoxide and hydrogen to form 3-, 4- and 5-formylvalerates (III); hydrogenating and separating (I) from alkyl 6C hydroxycarboxylates (IV) produced. First step is in presence of rhodium compound and tertiary organic polyphosphite (A) and the hydrogenation uses catalyst from subgroup I or VI-VIII. Preparation of alkyl 6-hydroxycaproates (I) comprises reacting alkyl 2-, 3- and/or 4-pentenoates (II) with carbon monoxide and hydrogen to form a mixture consisting mainly of 3-, 4- and 5-formylvalerates (III); hydrogenating this mixture and separating (I) from the mixture of alkyl 6C hydroxycarboxylates (IV) produced. The first step is in presence of a rhodium compound and a tertiary organic polyphosphite (A) and the hydrogenation is in the presence of a catalyst containing at least one element of subgroup I or VI-VIII.

公开(公告)号：AU2003299298A1

公开(公告)日：2004-07-09

申请号：AU2003299298

申请日：2003-12-03

Applicant: BASF AG

Inventor： FISCHER ROLF-HARTMUTH ,  KRUG THOMAS ,  HAUNERT ANDREA ,  ROPER MICHAEL ,  SIRCH TILMAN ,  STUER WOLFRAM

IPC: C07C29/17 ,  C07C69/593 ,  C07C29/149 ,  C07C31/20 ,  C07C67/347

Abstract: Production of 1,6-hexanediol of purity at least 99.5 % comprises: (1) catalytically dimerizing a 1-8C acrylic acid ester in presence of rhodium compounds to a mixture mainly of 2- and 3-hexenedioic acid diesters; (2) hydrogenating the ester mixture in chromium-free mainly copper-containing catalysts; and (3) purifying the resulting diol mixture by fractional distillation.

公开(公告)号：AU2003283386A1

公开(公告)日：2004-06-15

申请号：AU2003283386

申请日：2003-11-11

Applicant: BASF AG

Inventor： FISCHER ROLF-HARTMUTH ,  KRUG THOMAS ,  SIRCH TILMAN ,  HAUNERT ANDREA

IPC: C07C29/149 ,  C07C31/20

公开(公告)号：DE10253751A1

公开(公告)日：2004-06-03

申请号：DE10253751

申请日：2002-11-19

Applicant: BASF AG

Inventor： MODI ANDREA ,  FISCHER ROLF-HARTMUTH ,  KRUG THOMAS ,  SIRCH TILMAN

IPC: C07C29/149 ,  C07C31/20