-
公开(公告)号:BR0109572A
公开(公告)日:2004-10-13
申请号:BR0109572
申请日:2001-03-19
Applicant: BASF AG
Inventor: LLER ULRICH M , TELES JOAQUIM HENRIQUE , RIEBER NORBERT , WALCH ANDREAS , BASSLER PETER , REHFINGER ALWIN , WENZEL ANNE , HARDER WOLFGANG
IPC: B01J8/02 , B01J29/90 , C07D301/12 , B01J19/00
Abstract: Continuous reaction of an organic compound with hydroperoxide using a catalyst comprises using at least two parallel reactors and a high stream flow. An independent claim is included for the apparatus used comprising at least two parallel isothermal fixed bed reactors, a separator(s) and an adiabatic fixed bed reactor(s).
-
公开(公告)号:BR0307813A
公开(公告)日:2004-12-21
申请号:BR0307813
申请日:2003-02-28
Applicant: BASF AG
Inventor: PESCHEL WERNER , ADRIAN TILL , RUST HARALD , TTCHER ARND B , HILLMER THOMAS , LLER ULRICH M , PAPP RAINER
Abstract: A process for preparing cyclohexanol from benzene by: a) preparing cyclohexene by hydrogenating benzene in the presence of a catalyst, and b) preparing cyclohexanol by hydrating the cyclohexene in the presence of a catalyst, comprises: carrying out steps a) and b) in a reaction facility which has a bottom region at the lower end, a top region at the upper end, and a reaction zone between the top region and the bottom region which contains the catalyst according to steps a) and b), evaporating a portion of the benzene using the heat of reaction in the reaction zone, condensing it in the top region and returning it to the reaction zone, and withdrawing a reaction mixture containing cyclohexanol in the bottom region.
-
公开(公告)号:BR0012653A
公开(公告)日:2002-04-09
申请号:BR0012653
申请日:2000-07-21
Applicant: BASF AG
Inventor: LLER ULRICH M , MERKLE HANS RUPERT
Abstract: In a process for preparing N-phosphonomethylglycine or a salt thereof by bringing phosphonomethyliminodiacetic acid or a salt thereof into contact with at least one oxygen-containing oxidant in the presence of a heterogeneous catalyst, the heterogeneous catalyst comprises at least one silicate.
-
公开(公告)号:BR0312382A
公开(公告)日:2005-04-12
申请号:BR0312382
申请日:2003-07-17
Applicant: BASF AG
Inventor: LLER ULRICH M , VOSS HARTWIG , SCHUBERT ERICH , HILL FRIEDRICH , PETERSEN HERMANN
IPC: B01J29/04 , B01J29/06 , B01J29/89 , C01B21/14 , C01B39/02 , C07B41/02 , C07C239/08 , C07C249/04 , C07C249/08 , C07D301/12
Abstract: In a process for concentrating an at least partially crystalline solid containing at least one zeolite in a mixture comprising at least one auxiliary, for example a template compound, and said solid, the mixture is ultrafiltrated in a step (II) to divide the mixture into a retentate and a permeate, the solids content in the retentate being higher than that in the mixture and the solids content in the permeate being lower than that in the mixture. This procedure allows auxiliaries, in particular template compounds, present in the permeate to be recycled into a crystallizing step (I) upstream of step (II).
-
-
-