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：AU1699002A

公开(公告)日：2002-05-21

申请号：AU1699002

申请日：2001-11-02

Applicant: BASF AG

Inventor： DERNBACH MATTHIAS ,  KOCH MICHAEL ,  SCHULZ GERHARD ,  WEIGL HAGEN ,  MAAS STEFFEN

IPC: C07B61/00 ,  C07C29/141 ,  C07C31/20 ,  C07C31/22 ,  C07C31/24 ,  C07C45/78 ,  C07C47/19

Abstract: In a process for the catalytic hydrogenation of a polymethylolalkanal or a monomethylolalkanal of the formula (I) where R may be identical or different and are each a substituted or unsubstituted aliphatic hydrocarbon having from 1 to 22 carbon atoms, an aryl or arylalkyl group having from 6 to 22 carbon atoms or a methylol group, in the presence of a copper-containing catalyst, the hydrogenation feed comprising the polymethylolalkanal or monomethylolalkanal has a total content of metal ions of groups 3 to 14 of the Periodic Table of the Element of up to 5 ppm.

公开(公告)号：AU3366801A

公开(公告)日：2001-07-09

申请号：AU3366801

申请日：2000-12-27

Applicant: BASF AG

Inventor： DERNBACH MATTHIAS ,  KRATZ DETLEF ,  STAMMER ACHIM ,  SCHULZ GERHARD

IPC: C07B61/00 ,  C07C29/14 ,  C07C31/22 ,  C07C45/75 ,  C07C45/82 ,  C07C45/83 ,  C07C45/86 ,  C07C47/058 ,  C07C47/19 ,  C07C45/80

Abstract: Formaldehyde is removed by distillation from reaction solutions containing a methlolated alkanal which was obtained from the reaction of formaldehyde with an alkanal which has at least one acidic hydrogen atom alpha to the carbonyl function or from the reaction of a 2-alkylacrolein or acrolein with water and formaldehyde, by a process in which this reaction was carried out in the presence of catalytic amounts of organic amine. The process permits the improved removal of formaldehyde from the reaction mixture and furthermore facilitates the hydrogenation of the alkanals thus obtained to give polyols.

公开(公告)号：DE19963442A1

公开(公告)日：2001-07-05

申请号：DE19963442

申请日：1999-12-28

Applicant: BASF AG

Inventor： DERNBACH MATTHIAS ,  KRATZ DETLEF ,  STAMMER ACHIM ,  HAAKE MATHIAS ,  KOCH MICHAEL ,  SCHULZ GERHARD

IPC: C07B61/00 ,  C07C29/141 ,  C07C29/80 ,  C07C29/90 ,  C07C31/22 ,  C07C29/88 ,  C07C31/18

Abstract: The invention relates to a method, whereby the colour number of polyhydric alcohols, in particular, trihydroxymethylpropane, can be significantly improved by hydrogenation. The method is characterized in that an alcohol is used in the hydrogenation, which has been previously purified by distillation. The conventional catalysts for hydrogenation are used as catalysts, preferably copper, nickel, palladium or ruthenium.

公开(公告)号：DE19963441A1

公开(公告)日：2001-07-05

申请号：DE19963441

申请日：1999-12-28

Applicant: BASF AG

Inventor： DERNBACH MATTHIAS ,  KRATZ DETLEF ,  WALTER MARC ,  SCHULZ GERHARD

IPC: B01J21/06 ,  B01J23/72 ,  B01J23/94 ,  C07C29/141 ,  C07C45/75 ,  C07B41/02 ,  C07C29/145 ,  C07C45/61

Abstract: Catalysts containing copper as an active component ,and used in the hydrogenation of methylol-aldehydes to methylol-alcohols, are regenerated in an oxygen-containing medium and activated prior to re-use in a hydrogen-containing medium. An Independent claim is included for use of the catalyst regeneration process is in the hydrogenation of hydroxypivalaldehyde, 2,2-dimethylolbutanal, 2,2-dimethylolpropionaldehyde, 3-hydroxypropionaldehyde and/or trimethylolacetaldehyde.

公开(公告)号：CA2466295C

公开(公告)日：2010-01-12

申请号：CA2466295

申请日：2001-11-15

Applicant: BASF AG

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

IPC: C07C29/80 ,  C07C29/76 ,  C07C31/22

Abstract: The invention relates to a method for removing acetals containing formaldehy de from polyvalent alcohols, especially trimethylolpropane. The inventive metho d is characterised in that the polyvalent alcohol is liberated of low-boiling constituents after it has been produced by distillation, is then subjected t o tempering and is repurified, preferably by means of distillation.

公开(公告)号：AT364587T

公开(公告)日：2007-07-15

申请号：AT01993593

申请日：2001-11-02

Applicant: BASF AG

Inventor： DERNBACH MATTHIAS ,  KOCH MICHAEL ,  SCHULZ GERHARD ,  WEIGL HAGEN ,  MAAS STEFFEN

IPC: C07C29/141 ,  C07B61/00 ,  C07C31/20 ,  C07C31/22 ,  C07C31/24 ,  C07C45/78 ,  C07C47/19

Abstract: In a process for the catalytic hydrogenation of a polymethylolalkanal or a monomethylolalkanal of the formula (I) where R may be identical or different and are each a substituted or unsubstituted aliphatic hydrocarbon having from 1 to 22 carbon atoms, an aryl or arylalkyl group having from 6 to 22 carbon atoms or a methylol group, in the presence of a copper-containing catalyst, the hydrogenation feed comprising the polymethylolalkanal or monomethylolalkanal has a total content of metal ions of groups 3 to 14 of the Periodic Table of the Element of up to 5 ppm.

公开(公告)号：ES2271376T3

公开(公告)日：2007-04-16

申请号：ES02801897

申请日：2002-10-18

Applicant: BASF AG

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

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

Abstract: Procedimiento para la descomposición de formiato de trialquilamonio a partir de metilolalcanos, que han sido obtenidos mediante condensación de formaldehído con un aldehído superior, a 100 hasta 250ºC y a una presión mayor que 106 Pa, caracterizado porque se descompone el formiato de trialquilamonio sobre catalizadores que contienen, al menos, un metal de los grupos octavo a decimosegundo del Sistema Periódico, con aporte de gases que contengan hidrógeno.

公开(公告)号：ES2266015T3

公开(公告)日：2007-03-01

申请号：ES00985231

申请日：2000-12-21

Applicant: BASF AG

Inventor： DERNBACH MATTHIAS ,  KRATZ DETLEF ,  STAMMER ACHIM ,  RUST HARALD ,  SCHULZ GERHARD

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

Abstract: Procedimiento para la destilación de purificación de trimetilolpropano procedente de la hidrogenación de 2, 2-dimetilolbutanal, que presenta las etapas siguientes: a) reacción de n-butiraldehído con formaldehído en presencia de cantidades catalíticas de una amina terciaria e hidrogenación de la mezcla obtenida de este modo para dar una mezcla que contiene trimetilolpropano; b) separación por destilación del agua, del metanol, de la trialquilamina y/o del formiato de trialquilamonio a presiones > 200 mbares, preferentemente > 400 mbares, temperaturas en la cola > 140ºC, preferentemente desde 160 hasta 180ºC, así como tiempos de residencia prolongados, que se lleva a cabo de tal manera que al menos la parte preponderante del TMP con el formiato de trialquilamonio, formado en la etapa (a) reaccione para dar formiatos de TMP que permanecen en la cola y trialquilamina que se elimina por destilación con agua y con metanol, c) calentamiento del residuo, obtenido en b) en vacío a una temperatura,a la que sea volátil el trimetilolpropano y se disocien al menos parcialmente los compuestos con un punto de ebullición mayor que el del trimetilolpropano, con separación mediante destilación del trimetilolpropano así como de los compuestos más fácilmente volátiles que el trimetilolpropano; d) destilación del destilado, obtenido en c) y separación de los compuestos fácilmente volátiles y obtención de TMP puro; e) destilación facultativa del trimetilolpropano, obtenido en d), para la obtención de TMP con un menor índice de color APHA.

公开(公告)号：AT334957T

公开(公告)日：2006-08-15

申请号：AT02792927

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.