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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.
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公开(公告)号：DE102004058886A1
公开(公告)日：2006-06-08
申请号：DE102004058886
申请日：2004-12-06
Applicant: BASF AG
Inventor： GRAFMANS HORST , MAAS STEFFEN , WECK ALEXANDER , RUETTER HEINZ , SCHULZ MICHAEL , ROS KARL-HEINZ
IPC: C07C231/02 , C07C233/05
Abstract: A process for preparing N,N-dimethylacetamide (DMAC) by continuously reacting methyl acetate (MeOAc) with dimethylamine (DMA) in the presence of a basic catalyst, wherein MeOAc is used in the form of a methanolic solution which is obtained as a by-product in the preparation of polyTHF by transesterifying polyTHF diacetate with methanol.
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公开(公告)号：BR0114428A
公开(公告)日：2003-08-26
申请号：BR0114428
申请日：2001-10-11
Applicant: BASF AG
Inventor： DERNBACH MATTHIAS , SIGWART CHRISTOPH , HESSE MICHAEL , MAAS STEFFEN
Abstract: A process is provided for improving the color number of polyhydric alcohols, especially trimethylolpropane, by catalytic hydrogenation, the polyhydric alcohol used in the hydrogenation having been purified by distillation following its preparation, wherein the hydrogenation is carried out in the presence of a macroporous supported heterogeneous catalyst containing, as the active metal, at least one metal of subgroups VII to X of the Periodic Table.
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公开(公告)号：DE10055181A1
公开(公告)日：2002-05-29
申请号：DE10055181
申请日：2000-11-08
Applicant: BASF AG
Inventor： WEIGL HAGEN , EBEL KLAUS , MAAS STEFFEN , SCHULZ GERHARD , DERNBACH MATTHIAS
IPC: C07C51/235 , C07C51/285 , C07C51/47 , C07C59/105 , C07C59/01
Abstract: The invention relates to a method for producing poly- or monomethylol alkanoic acids of general formula (I), R being the same or different and meaning a substituted or unsubstituted aliphatic hydrocarbon with 1 to 22 C-atoms or a methylol group; from the corresponding poly- or monomethylol alkanals of general formula (II), R having the meaning above, by oxidation with hydrogen peroxide. The poly- or monomethylol alkanal of general formula (II) used in the reaction has an overall content of metal ions of groups 3 to 14 of the periodic table of up to 5 ppm. The method is used especially for producing dimethylol allkanoic acids from the corresponding dimethylol alkanals, especially for producing dimethylol butanal or dimethylol propanal.
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公开(公告)号：DE50112632D1
公开(公告)日：2007-07-26
申请号：DE50112632
申请日：2001-11-02
Applicant: BASF AG
Inventor： DERNBACH MATTHIAS , KOCH MICHAEL , SCHULZ GERHARD , WEIGL HAGEN , MAAS STEFFEN
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.
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Patent Agency Ranking
公开(公告)号：DE102004055731A1
公开(公告)日：2006-05-24
申请号：DE102004055731
申请日：2004-11-18
Applicant: BASF AG
Inventor： PINKOS ROLF , EBEL KLAUS , HAUNERT ANDREA , KOCH MICHAEL , FRIEDRICH MARKO , MAAS STEFFEN
IPC: C07C209/68 , C07B63/00 , C07C209/84 , C07C211/62 , C07C211/63 , C07D521/00
Abstract: Single-step preparation of quaternary ammonium hydroxide (I) comprises conversion of quaternary ammonium formates (IIa) or quaternary ammonium carbonates (IIb) into (I) in the presence of a solvent and a catalyst, which is at least a metal of the groups 8-12 of the periodic system of the elements. Independent claims are included for: (1) (I) obtained by the method; and (2) use of metal of the Group 8-12 of the periodic system of element for preparing (I).
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公开(公告)号：DE10334489A1
公开(公告)日：2005-02-24
申请号：DE10334489
申请日：2003-07-29
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 , C07C29/74
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.
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公开(公告)号：DE10317543A1
公开(公告)日：2004-11-04
申请号：DE10317543
申请日：2003-04-16
Applicant: BASF AG
Inventor： WARTINI ALEXANDER , DERNBACH MATTHIAS , MAAS STEFFEN
IPC: C07C29/141 , C07C29/14 , C07C31/20
Abstract: Disclosed is a method for the catalytic hydrogenation of methylol alkanals of general formula (I), where R 1 and R 2 independently represent an additional methylol group or an alkyl group having with 1 to 22 carbon atoms, or an alkyl group with 1 to 22 C atoms, or an aryl group or aralkyl group with 6 to 33 carbon atoms, in the liquid phase on a hydrogenation catalyst. The inventive method is characterized in that a pH value ranging between 6.3 and 7.8 is adjusted in the hydrogenation feed by adding at least one tertiary amine
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公开(公告)号：BR0115199A
公开(公告)日：2004-02-17
申请号：BR0115199
申请日：2001-11-02
Applicant: BASF AG
Inventor： DERNBACH MATTHIAS , KOCH MICHAEL , SCHULZ GERHARD , WEIGL HAGEN , MAAS STEFFEN
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.
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公开(公告)号：DE10058303A1
公开(公告)日：2002-05-29
申请号：DE10058303
申请日：2000-11-24
Applicant: BASF AG
Inventor： DERNBACH MATTHIAS , MAAS STEFFEN , OHLBACH FRANK , MELDER JOHANN-PETER , SIRCH TILMAN
IPC: C07C29/141 , C07C29/80 , C07C31/22
Abstract: Removal of trialkylammonium formate from polyhydric alcohols produced by aldolization of formaldehyde with a higher aldehyde in the presence of an amine catalyst and hydrogenation of the resulting mono- or polymethylol alkanal comprises treating the aldolization product and/or hydrogenation product with a strongly basic ion exchanger and distilling the hydrogenation product. Removal of trialkylammonium formate from polyhydric alcohols produced by aldolization of formaldehyde with a higher aldehyde in the presence of an amine catalyst and hydrogenation of the resulting mono- or polymethylol alkanal comprises treating the aldolization product and/or hydrogenation product with a strongly basic ion exchanger and distilling the hydrogenation product at a bottom temperature below 200 deg C and a pressure below 400 mbar with a short residence time to remove the trialkylammonium formate together with methanol, trialkylamine and optionally water.
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