公开(公告)号：DE10234016A1

公开(公告)日：2004-02-05

申请号：DE10234016

申请日：2002-07-26

Applicant: BASF AG

Inventor： WARTINI ALEXANDER ,  SIRCH TILMAN ,  MELDER JOHANN-PETER ,  DERNBACH MATTHIAS

IPC: C07C29/10 ,  C07C29/141 ,  C07C29/88 ,  C07C45/75 ,  C07C29/132 ,  C07C31/18 ,  C07C29/74 ,  C07C45/72

Abstract: The invention relates to a method for increasing yield in the production of polyvalent alcohols, especially trimethylolpropane, obtained by condensing formaldehyde with a higher aldehyde. According to the inventive method, acid treatment is carried out on a mixture (high-boiling fraction) that is obtained by reprocessing, contains derivatives of said alcohols and has a higher boiling point than the respective alcohol, and the polyvalent alcohol is recovered from the acid-treated high-boiling fraction. The inventive method is characterised in that the water content of the high-boiling fraction amounts to between 20 and 90 wt. % in relation to the entire mixture of the high-boiling fraction and water.

公开(公告)号：DE10223055A1

公开(公告)日：2003-12-11

申请号：DE10223055

申请日：2002-05-24

Applicant: BASF AG

Inventor： WARTINI ALEXANDER ,  DERNBACH MATTHIAS ,  TISCHER GERLINDE ,  SIRCH TILMAN

IPC: C07C29/80 ,  C08G6/00 ,  C08G18/42 ,  C08G63/12 ,  C08G63/78 ,  C07C41/03 ,  C07C43/13 ,  C07C51/367 ,  C07C67/31 ,  C07B41/04

Abstract: The invention provides a process for preparing polyester polyols of polyhydric alcohols by mono- or polyesterification of at least one carboxylic acid having at least two acid groups and/or at least one derivative of a dicarboxylic acid with polyhydric alcohols, optionally with the addition of a catalyst, while removing the water of reaction, wherein the polyhydric alcohol used has a formaldehyde acetal content of less than 500 ppm.

公开(公告)号：ES2189247T3

公开(公告)日：2003-07-01

申请号：ES98947430

申请日：1998-08-13

Applicant: BASF AG

Inventor： BERBNER HEINZ ,  ETLING HANS ,  GUENTHER ERHARD ,  SIRCH TILMAN ,  ZETTLER HANS DIETER

IPC: B29C48/38 ,  B29C47/00 ,  B29C48/76 ,  B29C67/24 ,  C08G8/00 ,  C08G12/12 ,  C08G12/32 ,  C08G14/00 ,  B29C47/50 ,  B29C47/76

Abstract: The invention relates to a continuous process for preparing aminoplastics and/or phenolics, in which a precondensate solution is prepared in a first extruder (14), the precondensate solution is continuously fed, with addition of additives, to a second extruder (20) with partial filling in the feed section (E) and devolatilization section (G), devolatilized in the second extruder (20) and then formed to give a molding composition or an end product. The process is particularly suitable for preparing melamine resins, in particular melamine-formaldehyde resins, as well as for preparing urea-formaldehyde resins.

公开(公告)号：AU2002358636A1

公开(公告)日：2003-06-17

申请号：AU2002358636

申请日：2002-12-06

Applicant: BASF AG

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

IPC: C07C29/38 ,  C07B61/00 ,  C07C29/141 ,  C07C29/80 ,  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：BRPI0311150B1

公开(公告)日：2015-10-13

申请号：BR0311150

申请日：2003-05-21

Applicant: BASF AG

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

IPC: C08G65/26

Abstract: "processo para preparar polieteróis de alcoóis polivalentes, e, uso de um álcool polivalente". a invenção refere-se a um processo para preparar polióis de poliéster de alcoóis polivalentes por meio da mono- ou poliesterificação de pelo menos um ácido carboxílico contendo pelo menos dois grupos ácidos e/ou pelo menos um derivado de um ácido dicarboxílico com alcoóis polivalentes, opcionalmente com a adição de um catalisador, e por meio de separação da água de reação. referido processo é caracterizado pelo fato de que o álcool polivalente usado apresenta um teor de acetal de formaldeído inferior a 500 ppm.

公开(公告)号：MY137518A

公开(公告)日：2009-02-27

申请号：MYPI20053040

申请日：2005-07-04

Applicant: BASF AG

Inventor： HAUNERT ANDREA DR ,  PINKOS ROLF DR ,  KRUG THOMAS ,  SIRCH TILMAN ,  KOCH MICHAEL DR ,  TEBBEN GERD-DIETER DR

Abstract: THE PRESENT INVENTION PROVIDES A PROCESS FOR PREPARING 1,6-HEXANEDIOL BY HYDROGENATING DIALKYL ADIPATES, ALKYL 6-HYDROXYCAPROATES, 1,4-CYCLOHEXANEDIONE AND 4-HYDROXYCYCLOHEXAN-1-ONE AS ESTER MIXTURES COMPRISING IMPURITIES, BY A) FREEING RESULTING THE ESTERIFICATION MIXTURE OF EXCESS ALCOHOL AND LOW BOILERS IN A FIRST DISTILLATION STAGE (ALCOHOL REMOVAL), B) CARRYING OUT A SEPARATION OF THE BOTTOM PRODUCT 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, C) CATALYTICALLY HYDROGENATING THE ESTER FRACTION SUBSTANTIALLY FREE OF 1,4- CYCLOHEXANEDIOLS (ESTER HYDROGENATION) AND D) IN A PURIFYING DISTILLATION STAGE, OBTAINING 1 ,6-HEXANEDIOL FROM THE HYDROGENATION EFFLUENT IN A MANNER KNOWN PER SE, WHICH COMPRISES SELECTIVELY HYDROGENATING THE ESTER MIXTURE BEFORE STAGE A) AND/OR BEFORE STAGE B) (PURIFYING HYDROGENATION).

公开(公告)号：MY136163A

公开(公告)日：2008-08-29

申请号：MYPI20034611

申请日：2003-12-03

Applicant: BASF AG

Inventor： FISCHER ROLF-HARTMUTH DR ,  KRUG THOMAS ,  HAUNERT ANDREA DR ,  PER MICHAEL R XD PROF DR ,  SIRCH TILMAN ,  XDCER WOLFRAM ST DR

IPC: C07C29/17

Abstract: THE PRESENT INVENTION PROVIDES A PROCESS FOR PREPARING 1, 6-HEXANEDIOL HAVING A PURITY OF ( )99.5BY WEIGHT BY CATALYTICALLY DIMERIZING ACRYLIC ESTERS AND CATALYTICALLY HYDROGENATING THE HEXENEDIOIC DIESTERS OBTAINED IN THIS WAY TO 1, 6-HEXANEDIOL BY A)DIMERIZING C( )-TO C( )-ACRYLIC ESTERS IN THE PRESENCE OF AT LEAST ONE FHODIUM COMPOUND TO GIVE MIXTURES OF PREDOMINANTLY 2- AND 3-HEXENEDIOIC DIESTERS,B)HYDROGENATING THE RESULTING DIMERIZING EFFLUENT IN THE PRESENCE OF CHROMIUM-FREE-CATALYSTS COMPRISING PREDOMINANTLY COPPER AS THE HYDROGENATION COMPONENT ANDC)PURIFYING THE CRUDE 1, 6-HEXANEDIOL OBTAINED IN THIS WAY BY FRACTIONAL DISTILLATION.

公开(公告)号：BRPI0412987A

公开(公告)日：2006-10-03

申请号：BRPI0412987

申请日：2004-07-07

Applicant: BASF AG

Inventor： KOCH MICHAEL ,  WARTINI ALEXANDER ,  MAAS STEFFEN ,  SIRCH TILMAN ,  DERNBACH MATTHIAS

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

Abstract: Removal of trialkylammonium formates (TAAF) from methylolalkanes obtained by condensation of formaldehyde with higher aldehydes involves decomposing the TAAF at elevated temperature on a titanium dioxide- supported ruthenium-containing catalyst in presence of a hydrogen-containing gas. An independent claim is also included for such a catalyst in which commercially-available titanium dioxide is treated before or after shaping to form the support with 0.1-30 wt.% of an acid in which the TiO 2 is difficultly soluble.

公开(公告)号：AT338740T

公开(公告)日：2006-09-15

申请号：AT02801897

申请日：2002-10-18

Applicant: BASF AG

Inventor： KOCH MICHAEL ,  WARTINI ALEXANDER ,  SIRCH TILMAN ,  DERNBACH MATTHIAS

IPC: C07C29/90 ,  C07C29/88 ,  C07C31/22

Abstract: A method for removing trialkyl ammonium formate from a methylol alkanes obtained by condensation of formaldehyde with a higher aldehyde. The invention is characterized in that trialkyl ammonium formate is decomposed at a high temperature using catalysts containing at least one metal from groups 8-12 of the classification of elements in the presence of gas containing hydrogen. The method makes it possible to separate trialkyl ammonium formate according to the organic Cannizzaro method and according to the hydrogenation method.

公开(公告)号：ES2253699T3

公开(公告)日：2006-06-01

申请号：ES03755042

申请日：2003-05-21

Applicant: BASF AG

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

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

Abstract: Procedimiento para la obtención de poliéteroles de alcoholes polivalentes, de la fórmula (I), en la que R1 y R2 significan, independientemente entre sí, hidrógeno, alquilo con 1 a 10 átomos de carbono, hidroxialquilo con 1 a 10 átomos de carbono, carboxilo o alcoxicarbonilo con 1 a 4 átomos de carbono, mediante reacción de un óxido de alquileno con el alcohol polivalente correspondiente en presencia de una base así como, en caso dado, en presencia de un disolvente, caracterizado porque el alcohol polivalente empleado ha sido obtenido mediante reacción de un aldehído de la fórmula (II) con formaldehído y a continuación transformación del grupo aldehído en un grupo hidroxi mediante hidrogenación catalítica y presenta un contenido en formaldehídoacetal por debajo de 500 ppm.