公开(公告)号：DE1151506B

公开(公告)日：1963-07-18

申请号：DEB0061419

申请日：1961-02-24

Applicant: BASF AG

Inventor： CRAUBNER DR HANS ,  HRUBESCH DR ADOLF ,  BURGER DR HEINZ ,  KRZIKALLA DR REINHARD

IPC: C07D233/56 ,  C09K15/30

公开(公告)号：DE1138934B

公开(公告)日：1962-10-31

申请号：DEB0056153

申请日：1960-01-07

Applicant: BASF AG

Inventor： CRAUBNER DR HANS ,  HRUBESCH DR ADOLF

IPC: C08F283/00 ,  C08F283/04

公开(公告)号：DE1133547B

公开(公告)日：1962-07-19

申请号：DEB0058505

申请日：1960-07-07

Applicant: BASF AG

Inventor： JOST DR KONRAD ,  GEHM DR ROBERT ,  HRUBESCH DR ADOLF

IPC: C08K5/30

公开(公告)号：DE1111391B

公开(公告)日：1961-07-20

申请号：DEB0056152

申请日：1960-01-07

Applicant: BASF AG

Inventor： CRAUBNER DR HANS ,  HRUBESCH DR ADOLF

IPC: C08F8/30 ,  C08F291/12

公开(公告)号：DE1088049B

公开(公告)日：1960-09-01

申请号：DEB0039640

申请日：1956-03-24

Applicant: BASF AG

Inventor： HRUBESCH DR ADOLF

公开(公告)号：DE1026025B

公开(公告)日：1958-03-13

申请号：DEB0041628

申请日：1956-09-04

Applicant: BASF AG

Inventor： HRUBESCH DR ADOLF ,  FRANKE DR WALTER

公开(公告)号：DE1004318B

公开(公告)日：1957-03-14

申请号：DEB0038745

申请日：1956-01-17

Applicant: BASF AG

Inventor： HRUBESCH DR ADOLF ,  FRANKE DR WALTER

公开(公告)号：DE1002329B

公开(公告)日：1957-02-14

申请号：DEB0030597

申请日：1954-04-14

Applicant: BASF AG

Inventor： HRUBESCH DR ADOLF

IPC: C23F11/10

公开(公告)号：DE831755C

公开(公告)日：1952-02-18

申请号：DEB0003047

申请日：1950-04-15

Applicant: BASF AG

Inventor： HRUBESCH DR ADOLF ,  SCHLICHTING DR OTTO

IPC: A61K8/49 ,  A61Q17/04

公开(公告)号：DE1568094A1

公开(公告)日：1970-05-06

申请号：DE1568094

申请日：1966-03-24

Applicant: BASF AG

Inventor： SUTER DR HUBERT ,  NOHE DR HEINZ ,  BECK DR FRITZ ,  HRUBESCH DR ADOLF

IPC: C25B3/25 ,  C07C51/40

Abstract: 1,176,036. Cyclohexadiene dicarboxylic acids. BADISCHE ANILIN- & SODA-FABRIK A.G. 23 March, 1967 [24 March, 1966], No. 13721/67. Heading C2C. [Also in Division C7] 3,5 or 2,5-Cyclohexadiene-1,2 or 1,4-dicarboxylic acid is produced by electrochemical hydrogenation of o- and/or tere-phthalic acid in aqueous H 2 SO 4 at 70-100‹ C. with a current density of 1-40 amp./sq. dm. on a cathode of Cd, Sn, Bi, Tl, or an alloy of at least two of the metals Pb, Hg, Ag, Cd, Sn, Tl and Bi; the cathode metal or alloy may be amalgamated. The phthalic acid may be dispersed in a concentration of 2-8% in aqueous H 2 SO 4 of concentration 2-50% by weight. The hydrogenation cell may be a heated or cooled doublewalled tube provided with a cylindrical cathode on or as its inner wall surrounding a cylindrical porous clay diaphragm and a water-cooled lead pipe anode; alternatively, the anode may be of Pb, Pt, PbO 2 , graphite or SiC. The catholyte may be continuously fed to the cell by a metering pump; withdrawn catholyte may be returned to the cell after crystallizing out the product and adding phthalic acid. Aqueous H 2 SO 4 may form the anolyte.