Process for the preparation of saturated primary fatty amines by

Details Process for the preparation of saturated primary fatty amines by Process for the preparation of saturated primary fatty amines by

1991-12-12

1992-12-29

Elmore, Carolyn

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

Organic compounds

Amino nitrogen containing

564463, C07C20948

Patent

active

051753707

ABSTRACT:
According to the new process, the hydrogenation of unsaturated fatty acid nitriles or mixtures of unsaturated and saturated fatty acid nitriles is carried out in the liquid phase in the presence of nickel catalysts or cobalt catalysts. In a first reaction step the fatty acid nitrile, in the presence of ammonia, is treated with hydrogenation hydrogen until all the nitrile groups are hydrogenated to predominantly primary amino groups. After the ammonia content in the reaction mixture obtained from the first step has been adjusted to a value of at most 0.1 mol of ammonia per mole of fatty acid nitrile used, a second reaction step is used to hydrogenate the double bonds present to saturated bonds. The desired primary and saturated fatty amine is obtained in a very high yield and has an iodine number of at most 5.

REFERENCES:
patent: 3163676 (1964-12-01), Potts
patent: 3293298 (1966-12-01), Szabo
patent: 3574754 (1971-04-01), Specken

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