Selective preparation of diethylenetriamine

Details Selective preparation of diethylenetriamine Selective preparation of diethylenetriamine

1991-06-25

1995-04-25

O'Sullivan, Peter

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

Organic compounds

Amino nitrogen containing

544358, 544401, 544402, 564479, 564480, C07C20916, C07C20964, C07C20900

Patent

active

054100860

ABSTRACT:
This invention relates to a method for controlling the weight ratio of diethylenetriamine to piperazine in a process in which ethylenediamine, or a mixture of ethylenediamine and monoethanolamine, and hydrogen are maintained in the presence of a hydrogenation catalyst, which method comprises adjusting the hydrogen concentration in the liquid phase in an amount sufficient to effectuate control of the weight ratio of diethylenetriamine to piperazine in said process.

REFERENCES:
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patent: 3285920 (1966-11-01), Muhlbaur et al.
patent: 3714259 (1973-01-01), Lichtenwalter et al.
patent: 4036881 (1977-07-01), Brennan et al.
patent: 4234730 (1980-11-01), McConnell et al.
patent: 4547591 (1985-10-01), Brennan et al.
patent: 4568746 (1986-02-01), Cowherd, III

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