Process for preparing a mixture of amino-methyl-cyclohexanes and

Details Process for preparing a mixture of amino-methyl-cyclohexanes and Process for preparing a mixture of amino-methyl-cyclohexanes and

1997-03-10

1998-04-21

Raymond, Richard L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

564451, C07C20972

Patent

active

057419299

ABSTRACT:
For the continuous preparation of a mixture of amino-methyl-cyclohexanes and diamino-methyl-cyclohexanes by catalytic hydrogenation of diamino-toluenes with hydrogen at temperatures of from 150.degree. to 260.degree. C. and an H.sub.2 pressure of from 20 to 500 bar, use is made of a fixed-bed catalyst comprising ruthenium on an Al.sub.2 O.sub.3 support treated with compounds of rare earth metals, of manganese and alkali metal hydroxides or alkaline earth metal hydroxides.

REFERENCES:
patent: 3424792 (1969-01-01), Cross
patent: 3445516 (1969-05-01), Cross
patent: 3520928 (1970-07-01), Greco
patent: 4161492 (1979-07-01), Weissel
patent: 4186145 (1980-01-01), Weissel
patent: 4943549 (1990-07-01), Immel et al.

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