公开(公告)号：MX9800905A

公开(公告)日：1998-05-31

申请号：MX9800905

申请日：1996-07-26

Applicant: BASF AG

Inventor： ACHHAMMER GUNTHER ,  ROPER MICHAEL

IPC: C07C67/54 ,  C07C69/716

Abstract: Los ésteres 5-formilvaléricos se separan, en un rendimiento no menor de 90%, por destilacion de una mezcla del éster formilvalérico de éster 5-formilvalérico y cualquiera de éster 3- o 4-formilvalérico o una mezcla de los ésteres 3- y 4-formilvaléricos, en donde los radicales éster de los ésteres formilvaléricos respectivos son idénticos, en donde el éster 3- o 4-formilvalérico o una mezcla de éstos se separa del éster 5-formilvalérico en una columna de destilacion a una presion en el rango desde 2 a 100 mbar y una temperatura no mayor de 150 degree C (medida como la temperatura en la parte inferior de la columna( y los ésteres utilizando son los metil o etil ésteres correspondientes, en donde la pureza del éster 5-formilvalérico es no menos de 98% y. como impureza, el éster 4-formilvalérico está presente en una cantidad no mayor de 100ppm.

公开(公告)号：AU4208297A

公开(公告)日：1998-04-14

申请号：AU4208297

申请日：1997-08-29

Applicant: BASF AG

Inventor： KANAND JURGEN ,  ROPER MICHAEL

IPC: C07C41/00 ,  C07B61/00 ,  C07C41/06 ,  C07C43/00 ,  C07C43/15

Abstract: In a process for producing alkoxybutenes, 1,3-butadiene or a butadiene-containing hydrocarbon mixture is reacted with an alcohol of formula ROH (I) at an increased temperature and pressure in the presence of a Brönsted acid, yielding a mixture of addition products of formulas (II) and (III), in which the radical R is a C2-C20 alkyl, alkenyl, cycloalkyl or cycloalkenyl group substituted or not with 1 to 2 C1-C10 alkoxy or hydroxy groups, or is a C2-C10 aryl or C7-C11 aralkyl group or a methyl group. The disclosed improvement consists in that the reaction is carried out in the presence of water.

公开(公告)号：AU1948795A

公开(公告)日：1995-10-03

申请号：AU1948795

申请日：1995-03-06

Applicant: BASF AG

Inventor： KNEUPER HEINZ-JOSEF ,  ARON MAIK ,  KORGITZSCH FRANK-MICHAEL ,  NILLES MICHAEL ,  HARDER WOLFGANG ,  ROPER MICHAEL ,  PACIELLO ROCCO

IPC: B01J23/46 ,  B01J31/40 ,  C07B61/00 ,  C07C27/22 ,  C07C29/141 ,  C07C29/16 ,  C07C31/02 ,  C07C45/50 ,  C07C45/80 ,  C07C47/02 ,  C07C51/235 ,  C07C209/00

Abstract: PCT No. PCT/EP95/00825 Sec. 371 Date Sep. 13, 1996 Sec. 102(e) Date Sep. 13, 1996 PCT Filed Mar. 6, 1995 PCT Pub. No. WO95/25080 PCT Pub. Date Sep. 21, 1995An industrial preparation of aldehydes and/or alcohols from olefins of more than 3 carbon atoms by a catalytic hydroformylation of the olefin reactant at a pressure of from 50 to 1000 bar and a temperature of from 50 to 180 DEG C. in the presence of an uncomplexed rhodium catalyst homogeneously dissolved in the reaction medium. The catalytic activity of the rhodium is maintained, first by extracting it from the initially discharged reaction mixture by means of an aqueous solution of a nitrogen-containing complexing agent such as sulfonated or carboxylated pyridines, quinolines or the like. In a recycle of the complexed rhodium to be reused in the hydroformylation reaction, the aqueous rhodium-containing extract is fed to a precarbonylation stage where it subjected to a required precarbonylation in the presence of an essentially water-insoluble organic liquid and in the presence of carbon monoxide, synthesis gas or another gas mixture containing carbon monoxide at from 50 to 1000 bar and from 50 to 180 DEG C. The mixture discharged from this precarbonylation stage is then separated into an organic phase containing the main part of the rhodium and an aqueous phase containing the complexing agent. The resulting rhodium-containing organic phase with the regenerated catalyst is then fed into the hydroformylation stage to complete its recycle.