公开(公告)号：DK388786D0

公开(公告)日：1986-08-15

申请号：DK388786

申请日：1986-08-15

Applicant: BASF AG

Inventor： DEGNER DIETER ,  HANNEBAUM HEINZ ,  STEINIGER MICHAEL

IPC: C07C271/10 ,  C25B3/23 ,  C25B3/29 ,  C07C ,  C25B

Abstract: Carbamic acid esters (I) R1NHCOOR2 (I) wherein R1 is H, alkyl, cycloalkyl or alkylaryl and R2 is alkyl, are prepared by electro-oxidation of a formamide (II) R1NHCHO (II) in the presence of an alcohol R2OH and of an ionic halide.

公开(公告)号：DE502006000261D1

公开(公告)日：2008-02-14

申请号：DE502006000261

申请日：2006-06-30

Applicant: BASF AG

Inventor： WINDECKER GUNTHER ,  WECK ALEXANDER ,  STEINIGER MICHAEL ,  BREDEHOEFT JAN PETER ,  BENDER BIANCA ,  KNAPPIK PETER ,  VANDEN HAUTTE DANY ,  PIERRE BERNARD ,  HAFFNER BEATRIX

IPC: B01D3/34 ,  B01D53/14

Abstract: The invention relates to a process for separating off maleic anhydride from a gas stream comprising maleic anhydride, in which a) the gas stream comprising maleic anhydride is brought into contact with a liquid absorbent phase comprising at least one high-boiling inert absorption medium for maleic anhydride and b) maleic anhydride is separated off from the resulting liquid absorbate phase by stripping with a hydrogen-comprising gas as stripping medium in a column, wherein the stripping medium is fed in at two points on the column which are at least one theoretical plate apart.

公开(公告)号：DE102006009839A1

公开(公告)日：2007-09-06

申请号：DE102006009839

申请日：2006-03-01

Applicant: BASF AG

Inventor： MAAS STEFFEN ,  JOHANN THORSTEN ,  STEINIGER MICHAEL ,  SIRCH TILMAN ,  SCHLITTER STEPHAN ,  RITTINGER STEFAN

IPC: C07C29/141 ,  B01J23/72 ,  C07C31/18 ,  C07C31/20

公开(公告)号：DE102006009838A1

公开(公告)日：2007-09-06

申请号：DE102006009838

申请日：2006-03-01

Applicant: BASF AG

Inventor： MAAS STEFFEN ,  JOHANN THORSTEN ,  KOCH MICHAEL ,  SIRCH TILMAN ,  SCHLITTER STEPHAN ,  RITTINGER STEFAN ,  STEINIGER MICHAEL

IPC: C07C29/141 ,  B01J23/72 ,  C07C31/18 ,  C07C31/20

Abstract: A process for catalytically hydrogenating methylolalkanals of the general formula in which R1 and R2 are each independently a further methylol group or an alkyl group having from 1 to 22 carbon atoms or an aryl or aralkyl group having from 6 to 33 carbon atoms, in the liquid phase over a hydrogenation catalyst, which comprises setting a pH of from 7.0 to 9.0 in the hydrogenation effluent by adding at least one tertiary amine, an inorganic base or an inorganic or organic acid to the hydrogenation feed.

公开(公告)号：DE102005049135A1

公开(公告)日：2007-04-19

申请号：DE102005049135

申请日：2005-10-14

Applicant: BASF AG

Inventor： JOHANN THORSTEN ,  MAAS STEFFEN ,  SCHLITTER STEPHAN ,  SIRCH TILMAN ,  KOCH MICHAEL ,  RITTINGER STEFAN ,  STEINIGER MICHAEL ,  PETERSEN HERMANN

IPC: B01J35/02 ,  B01J37/03 ,  C07C29/141

公开(公告)号：MX2007000963A

公开(公告)日：2007-04-16

申请号：MX2007000963

申请日：2006-06-30

Applicant: BASF AG

Inventor： WECK ALEXANDER ,  WINDECKER GUNTHER ,  STEINIGER MICHAEL ,  BREDEHOFT JAN PETER ,  BENDER BIANCA ,  KNAPPIK PETER ,  HAUTTE DANY VANDEN ,  PIERRE BERNARD ,  HAFFNER BEATRIX

IPC: B01D3/00 ,  B01D53/00

Abstract: La invencion se relaciona con un proceso para separar anhidrido maleico de una corriente de gas que comprende anhidrido maleico, en donde (a) la corriente de gas que comprende anhidrido maleico se lleva hacia contacto con una fase absorbente liquido que comprende cuando menos un medio de absorcion inerte de ebullicion elevada para anhidrido maleico y (b) el anhidrido maleico se separa de la fase de absorbato liquido resultante extrayendo con un gas que comprende hidrogeno como medio de extraccion en una columna, en donde el medio de extraccion se alimenta en dos puntos en la columna que estan cuando menos separados en una placa teorica.

公开(公告)号：DE102005042185A1

公开(公告)日：2007-03-08

申请号：DE102005042185

申请日：2005-09-06

Applicant: BASF AG

Inventor： LORENZ RUDOLF ERICH ,  PINKOS ROLF ,  STEINIGER MICHAEL ,  SCHAEFER GERD

IPC: C07C29/76 ,  C07C29/17 ,  C07C31/20 ,  C07C33/035 ,  C07C33/046

Abstract: The present invention relates to processes for making 1,4-butanediol, 1,4-butenediol, or a mixture thereof by processing 1,4-butynediol in a dynamic mixing apparatus in an inert gas atmosphere at from 25 to 150° C. at a shear rate in the radial gap between rotor and stator of the mixing apparatus of more than 100 000 sec-1; phase separating the processed 1,4-butynediol at a temperature of from 25 to 150° C.; removing a bottom phase to obtain purified 1,4-butynediol; and reacting the purified 1,4-butynediol with hydrogen in the presence of a catalyst.

公开(公告)号：FI86715C

公开(公告)日：1992-10-12

申请号：FI863246

申请日：1986-08-08

Applicant: BASF AG

Inventor： DEGNER DIETER ,  HANNEBAUM HEINZ ,  STEINIGER MICHAEL

IPC: C07C271/10 ,  C25B3/23 ,  C25B3/29 ,  C07C269/00 ,  C25B3/02

公开(公告)号：CA1275066A

公开(公告)日：1990-10-09

申请号：CA515607

申请日：1986-08-08

Applicant: BASF AG

Inventor： DEGNER DIETER ,  HANNEBAU HEINZ ,  STEINIGER MICHAEL

IPC: C25B3/29 ,  C07C271/10 ,  C25B3/23 ,  C25B3/02

Abstract: Carbamic acid esters (I) R1NHCOOR2 (I) where R1 is H, alkyl, cycloalkyl or alkylaryl and R2 is alkyl, are prepared by electro-oxidation of a formamide (II) R1NHCHO (II) in the presence of an alcohol R2OH and of an ionic halide.

公开(公告)号：NO163965C

公开(公告)日：1990-08-15

申请号：NO863297

申请日：1986-08-15

Applicant: BASF AG

Inventor： DEGNER DIETER ,  HANNEBAUM HEINZ ,  STEINIGER MICHAEL

IPC: C07C271/10 ,  C25B3/23 ,  C25B3/29 ,  C25B3/02

Abstract: Carbamic acid esters (I) R1NHCOOR2 (I) wherein R1 is H, alkyl, cycloalkyl or alkylaryl and R2 is alkyl, are prepared by electro-oxidation of a formamide (II) R1NHCHO (II) in the presence of an alcohol R2OH and of an ionic halide.