Document Type and Number:
Japanese Patent JPH0112745
Kind Code:
B2
Abstract:
This invention relates to an improved hydrogenation process wherein methylenedianiline is reduced to form bis (para-aminocyclohexyl)methane (PACM). The process contemplates contacting methylenedianiline and hydrogen in the presence of a two component metal catalyst comprising rhodium and ruthenium under mild hydrogenation conditions. Use of the mixed metal catalyst system allows one to obtain a preselected isomer ratio having from about 5-40% by weight, typically 14-28% by weight of the trans,trans- configurational isomer.
Inventors:
JEREMIA PATORITSUKU KEESHII
MAIKERU JOSEFU FUASORUKA
MAIKERU JOSEFU FUASORUKA
Application Number:
JP1120687A
Publication Date:
March 02, 1989
Filing Date:
January 20, 1987
Export Citation:
Assignee:
AIR PROD & CHEM
International Classes:
C07B61/00; B01J23/00; B01J23/46; C07C65/24; C07C67/00; C07C209/00; C07C209/68; C07C209/72; C07C211/36; C07C211/37; C07C211/54
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