公开(公告)号：BR9508232A

公开(公告)日：1998-05-19

申请号：BR9508232

申请日：1995-07-04

Applicant: BASF AG

Inventor： IRGANG MATTHIAS ,  STOPS PETER ,  MIESEN ERNEST ,  MENGER VOLKMAR ,  GRAF FRITZ

IPC: B01J23/60 ,  B01J23/66 ,  B01J23/89 ,  C07B61/00 ,  C07C29/17 ,  C07C33/035

Abstract: PCT No. PCT/EP95/02592 Sec. 371 Date Mar. 20, 1997 Sec. 102(e) Date Mar. 20, 1997 PCT Filed Jul. 4, 1995 PCT Pub. No. WO96/01242 PCT Pub. Date Jan. 18, 1996A process is disclosed for the selective hydrogenation of butynediol to 2-butene-1,4-diol using a palladium catalyst to which either copper and zinc, or silver and zinc, or copper, silver and zinc are added as doping agents. In the preferred embodiment, it has been possible, by optimizing the composition of the catalyst, to improve the activity and selectivity of the catalysts in question while also eliminating the need to handle toxic substances during the catalyst manufacturing process.

公开(公告)号：HUT76706A

公开(公告)日：1997-10-28

申请号：HU9700013

申请日：1995-07-04

Applicant: BASF AG

Inventor： GRAF FRITZ ,  IRGANG MATTHIAS ,  MENGER VOLKMAR ,  MIESEN ERNEST ,  STOPS PETER

IPC: B01J23/60 ,  B01J23/66 ,  B01J23/89 ,  C07B61/00 ,  C07C29/17 ,  C07C33/035 ,  C07B35/02

Abstract: PCT No. PCT/EP95/02592 Sec. 371 Date Mar. 20, 1997 Sec. 102(e) Date Mar. 20, 1997 PCT Filed Jul. 4, 1995 PCT Pub. No. WO96/01242 PCT Pub. Date Jan. 18, 1996A process is disclosed for the selective hydrogenation of butynediol to 2-butene-1,4-diol using a palladium catalyst to which either copper and zinc, or silver and zinc, or copper, silver and zinc are added as doping agents. In the preferred embodiment, it has been possible, by optimizing the composition of the catalyst, to improve the activity and selectivity of the catalysts in question while also eliminating the need to handle toxic substances during the catalyst manufacturing process.

公开(公告)号：FR2552426B1

公开(公告)日：1986-11-28

申请号：FR8414519

申请日：1984-09-21

Applicant: BASF AG

Inventor： WICKENHAEUSER GERHARD ,  HEIDA BERND ,  GRAF FRITZ ,  HUPFER LEOPOLD

IPC: C07C59/153 ,  C07C51/00 ,  C07C51/48 ,  C07C67/00

Abstract: Aqueous glyoxylic acid solutions, essentially free of other acids, are recovered from aqueous solutions which still contain other acids, by a method in which the aqueous solution is mixed with an organic nitrogen compound at as high as 50 DEG C., the phases are separated, and the glyoxylic acid is extracted from the organic phase with water, at a higher temperature.

公开(公告)号：FR2552426A1

公开(公告)日：1985-03-29

申请号：FR8414519

申请日：1984-09-21

Applicant: BASF AG

Inventor： WICKENHAEUSER GERHARD ,  HEIDA BERND ,  GRAF FRITZ ,  HUPFER LEOPOLD

IPC: C07C59/153 ,  C07C51/00 ,  C07C51/48 ,  C07C67/00

Abstract: Aqueous glyoxylic acid solutions, essentially free of other acids, are recovered from aqueous solutions which still contain other acids, by a method in which the aqueous solution is mixed with an organic nitrogen compound at as high as 50 DEG C., the phases are separated, and the glyoxylic acid is extracted from the organic phase with water, at a higher temperature.

公开(公告)号：FR1428785A

公开(公告)日：1966-02-18

申请号：FR9871

申请日：1965-03-19

Applicant: BASF AG

Inventor： STASTNY FRITZ ,  GRAF FRITZ

IPC: C08J9/00

公开(公告)号：FR1347407A

公开(公告)日：1963-12-27

申请号：FR922645

申请日：1963-01-25

Applicant: BASF AG

Inventor： STASTNY FRITZ ,  UNTERSTENHOEFER LEO ,  GRAF FRITZ ,  LOEFFLER HANS-JUERGEN

IPC: B29C44/34 ,  C08J9/35

公开(公告)号：FR1346185A

公开(公告)日：1963-12-13

申请号：FR923449

申请日：1963-02-01

Applicant: BASF AG

Inventor： STASTNY FRITZ ,  GRAF FRITZ ,  GAETH RUDOLF ,  SCHWENKE WOLFGANG ,  JUNG JOHANN

IPC: C05D9/00

公开(公告)号：CA556527A

公开(公告)日：1958-04-29

申请号：CA556527D

Applicant: BASF AG

Inventor： SCHNITZLER ERWIN ,  TOEPEL TIM ,  GRAF FRITZ