US 6,806,379 B2 · Preparation of alkylamines

Abstract

A continuous process for preparing alkylamines comprises reacting continuous streams of ammonia and alkyl halide in a molar ratio of at least 10:1 in a pressure reactor. The ultimate reaction mixture has a temperature of >80° C., a pressure of >40 bar and an ammonium halide content of >1% by weight, and comprises two phases (A) a first phase comprising at least 75% by weight of the total amount of ammonium halide formed, and (B) a second phase comprising at least 80% by weight of the total amount of alkylamine formed. The first and second phases are separated, and an alkylamine product is recovered therefrom.

Claims20

Dependent claims

A continuous process for preparing alkylamines, comprising:

reacting ammonia and alkyl halide in a molar ratio of at least 10:1 under pressure in a reactor, the ultimate reaction mixture prior to separation having a temperature of >80° C., a pressure of >40 bar and an ammonium halide content of >1% by weight, and comprising two phases:
(A) a first phase comprising at least 75% by weight of the total amount of ammonium halide formed, and
(B) a second phase comprising at least 80% by weight of the total amount of alkylamine formed,
and separating said first and second phases at a temperature greater than 80°C.

1 more element

Dependencies are inferred from the claim text.

Preparation of alkylamines

Life of this patent

Preparation of alkylamines

Life of this patent

Abstract

Claims20