公开(公告)号：ES2223637T3

公开(公告)日：2005-03-01

申请号：ES00987467

申请日：2000-12-28

Applicant: BASF AG

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

IPC: C07C29/88 ,  C07C29/141 ,  C07C29/80 ,  C07C31/22

Abstract: Procedimiento para aumentar el rendimiento en la obtención de alcoholes polivalentes obtenidos por hidrogenación a partir de alcanales metilolados, por descomposición de los derivados de éstos alcoholes, añadiéndose a una mezcla, que contiene éstos derivados, desde 5 ppm hasta un 1 % en peso de ácidos adecuados, la mezcla se calienta a temperaturas desde 150 hasta 280ºC y, a continuación, se separa por destilación el alcohol polivalente.

公开(公告)号：DE10237746A1

公开(公告)日：2004-03-11

申请号：DE10237746

申请日：2002-08-17

Applicant: BASF AG

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

IPC: C07C45/82 ,  C07C45/83 ,  C07C29/80 ,  C07B63/00 ,  C07C29/141 ,  C07C47/22

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：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：AU751354B2

公开(公告)日：2002-08-15

申请号：AU3419299

申请日：1999-03-30

Applicant: BASF AG ,  BASF CORP

Inventor： KOBER REINER ,  HOBBS DAVID ,  GIBSON SCOTT W ,  FERSCH KENNETH ,  RADEMACHER WILHELM ,  BOTZEM JORG ,  FREDE MARKUS ,  DERNBACH MATTHIAS ,  GOTTSCHE REIMER ,  DOTZER REINHARD

IPC: C07D295/02 ,  A01N33/12 ,  A01N43/40 ,  A01N59/14 ,  C01B35/12 ,  C07D295/037

Abstract: The invention provides novel mepiquat plant growth regulator compositions which have improved hygroscopicity and corrosion characteristics. The novel mepiquat plant growth regulator compositions of the invention can be readily prepared from technical mepiquat chlorid inter alia by electrochemical ion exchange processes or by quaternization of N-methylpiperidine with dimethylcarbonate as starting material.

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.