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公开(公告)号:CA2492269A1
公开(公告)日:2004-01-22
申请号:CA2492269
申请日:2003-07-14
Applicant: BASF AG
Inventor: MILLER CHRISTIAN , GOEBBEL HANS-GEORG , KAIBEL GERD , AQUILA WERNER , DOBLER WALTER , DIRNSTEINER THOMAS , HAHN THILO , BREUER KLAUS
Abstract: A method for the production of tetrahydrogeranylacetone is disclosed, whereb y pseudoionone, geranylacetone and/or dihydrogeranylacetone in the liquid phas e, in which particles of a catalyst, for the preferential hydrogenation of carb on- carbon double bonds before carbon-oxygen double bonds, are suspended, is fed through a device along in the presence of a gas comprising hydrogen, said device preventing the transport of the catalyst particles.
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公开(公告)号:AU2002361017A1
公开(公告)日:2003-06-17
申请号:AU2002361017
申请日:2002-12-05
Applicant: BASF AG
Inventor: DOBLER WALTER , HAAKE MATHIAS , SIGL MARCUS , MILLER CHRISTIAN
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公开(公告)号:DE10123066A1
公开(公告)日:2002-11-14
申请号:DE10123066
申请日:2001-05-11
Applicant: BASF AG
Inventor: ANSMANN ANDREAS , HENKELMANN JOCHEM , KINDLER ALOIS , ETZRODT HEINZ , OOST CARSTEN , STUTZ SUSANNE , TRAGUT CHRISTIAN , BOCKSTIEGEL BERNHARD , REIMER KLAUS , STROEZEL MANFRED , DOBLER WALTER
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公开(公告)号:NO942523D0
公开(公告)日:1994-07-04
申请号:NO942523
申请日:1994-07-04
Applicant: BASF AG
Inventor: ERNST HANSGEORG , DOBLER WALTER , PAUST JOACHIM , RHEUDE UDO
IPC: C07C41/18 , C07C45/45 , C07C49/303 , C07C403/24 , C07D317/46 , C07D317/50 , C07D317/54 , C07D407/06 , C07D407/12 , C07F9/54 , C09B23/10 , C07D
Abstract: Compounds of the general formula I in which R is H or C1-C4-alkyl, R is C1-C4-alkyl and R is an ether, silyl ether or acetal protective group which can be converted into a hydroxyl group by hydrolysis, in particular one of the radicals and a process for the production of these compounds by reacting an alkenyne of the general formula II in an inert solvent with additional use of lithium amide with a cyclohexenone of the general formula III and the use of the compounds of the formula I for the production of astaxanthin.
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公开(公告)号:DE50308608D1
公开(公告)日:2007-12-27
申请号:DE50308608
申请日:2003-07-14
Applicant: BASF AG
Inventor: GOEBBEL HANS-GEORG , KAIBEL GERD , MILLER CHRISTIAN , DOBLER WALTER , DIRNSTEINER THOMAS , HAHN THILO , BREUER KLAUS , AQUILA WERNER
Abstract: A process is described for preparing tetrahydrogeranylacetone in which pseudoionone, geranylacetone and/or dihydrogeranylacetone in a liquid phase, in which particles of a catalyst which is capable of preferentially hydrogenating carbon-carbon double bonds over carbon-oxygen double bonds are suspended, is conducted through a device which inhibits the transport of the catalyst particles in the presence of a hydrogen-containing gas.
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公开(公告)号:DE50210664D1
公开(公告)日:2007-09-20
申请号:DE50210664
申请日:2002-12-05
Applicant: BASF AG
Inventor: KAIBEL GERD , MILLER CHRISTIAN , DOBLER WALTER , DIRNSTEINER THOMAS , SIGL MARCUS , JANSEN HELMUT , KAIBEL BJOERN
IPC: B01D3/26 , B01D3/00 , B01J19/32 , B01J8/00 , B01J8/02 , B01J8/04 , B01J8/12 , B01J19/24 , B01J21/04 , B01J23/10 , B01J35/02 , C07B61/00 , C07C45/28 , C07C45/72 , C07C45/74 , C07C49/203
Abstract: A column is described for carrying out reactive distillations in the presence of a heterogeneous particulate catalyst having an ordered packing or random packings which form intermediate spaces in the column interior, the quotient of the hydraulic diameter for the gas flow through the ordered packing or the random packings and the equivalent diameter of the catalyst particles being in the range from 2 to 20, preferably in the range from 5 to 10, in such a manner that the catalyst particles are introduced into the intermediate spaces, distributed and discharged loose under the action of gravity.
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公开(公告)号:DE102005017314B3
公开(公告)日:2006-10-26
申请号:DE102005017314
申请日:2005-04-14
Applicant: BASF AG
Inventor: ERNST HANSGEORG , KELLER ANDREAS , KOENIG JOSEF , DOBLER WALTER
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公开(公告)号:DE10359026A1
公开(公告)日:2005-07-21
申请号:DE10359026
申请日:2003-12-15
Applicant: BASF AG
Inventor: DOBLER WALTER , BAHR NICOLAUS , KINDLER ALOIS , MILLER CHRISTIAN , SALDEN AXEL
IPC: C07C45/62 , C07C45/74 , C07D231/12 , C07D231/14 , C07D231/16 , C07D231/18 , C07D231/38 , C07D231/56 , C07D233/54 , C07D235/06 , C07D249/12 , C07D257/04 , C07D311/72 , C07D401/12 , C07D403/12 , C07D409/04 , C07D473/34 , C07C45/72 , C07C49/04 , C07C29/145 , C07C33/025 , C07C33/03
Abstract: The present invention relates to a process for preparing tetrahydrogeranylacetone (tetrahydropseudoionone) by aldol condensation of citral with acetone and subsequent hydrogenation. The invention further relates to the use of thus obtained tetrahydro-geranylacetone for preparing phytol, isophytol, tocopherol and/or tocopherol derivatives. In addition, the invention relates to processes for preparing tocopherols and/or tocopherol derivatives.
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公开(公告)号:AU2003251465A1
公开(公告)日:2004-03-29
申请号:AU2003251465
申请日:2003-07-24
Applicant: BASF AG
Inventor: DOBLER WALTER , KAIBEL GERD , MILLER CHRISTIAN , OOST CARSTEN , STROEZEL MANFRED , HAAKE MATHIAS , AQUILA WERNER
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公开(公告)号:DE10163335A1
公开(公告)日:2003-07-10
申请号:DE10163335
申请日:2001-12-21
Applicant: BASF AG
Inventor: KAIBEL GERD , MILLER CHRISTIAN , KLAS KATRIN , KINDLER ALOIS , AQUILA WERNER , DOBLER WALTER , BREUER KLAUS , POMMER ACHIM , DIRNSTEINER THOMAS
Abstract: Distillation column has a dividing wall which divides it into inflow and extraction sections, and upper and lower column zones. The mixture for distillation comprises a vapor feed which enters between the upper and lower inflow sections, between which the side extraction point removes vapor. The inflow and the extraction zones are offset relative too the dividing wall. The vapor feed rate is equal in all zones of the column. The distillation column has a dividing wall (TW) which divides it into an inflow section (2,4), an extraction section (3,5), and common upper (1) and lower (6) column zones. The mixture for distillation is at least partially a vapor feed (F) which enters between the upper and lower inflow sections, and the side extraction point (B) removes vapor between the upper and lower extraction zones. The cross sectional surfaces of the inflow and the extraction zones are set by an offset in the dividing wall. The F-factor is equal in all the zones of the column, defined as the product of the gas flow speed in m/seconds multiplied with the square root of the gas density in kg/m3.
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