Title:
新規水素化触媒を用いる芳香族アミンの製造法
Document Type and Number:
Japanese Patent JP4251411
Kind Code:
B2
Abstract:
PCT No. PCT/EP98/01985 Sec. 371 Date Oct. 7, 1999 Sec. 102(e) Date Oct. 7, 1999 PCT Filed Apr. 6, 1998 PCT Pub. No. WO98/46557 PCT Pub. Date Oct. 22, 1998Aromatic amines are produced by catalytic hydrogenation of corresponding aromatic nitro compounds in the gas phase, by carrying out the hydrogenation in the presence of catalysts which, besides palladium, vanadium and lead, contain in addition molybdenum, tungsten and/or rhenium on a ceramic support having a BET surface area of less than 40 m3/g, at temperatures of from 180 DEG C. to 500 DEG C. in a catalyst bed and in a molar ratio of hydrogen to the nitro group or nitro groups of 3:1 to 30:1.
Inventors:
Langer, Reinhard
Bouilly, Hans-Joseph
Gallus, Manfred
Yenchiu, Jörg Dietrich
Bouilly, Hans-Joseph
Gallus, Manfred
Yenchiu, Jörg Dietrich
Application Number:
JP54343198A
Publication Date:
April 08, 2009
Filing Date:
April 06, 1998
Export Citation:
Assignee:
Bayer Actien Gezershyaft
International Classes:
C07C209/36; B01J23/64; B01J23/648; B01J23/656; C07B61/00; C07C201/10; C07C205/06; C07C211/46; C07C211/51
Domestic Patent References:
| JP55066545A | ||||
| JP8059570A | ||||
| JP8059569A |
Attorney, Agent or Firm:
Patent business corporation Odashima patent office
Heigo Odashima
Heigo Odashima