Method and device for producing ethylamine and butylamine

Details Method and device for producing ethylamine and butylamine Method and device for producing ethylamine and butylamine

2007-01-09

2007-01-09

Davis, Brian (Department: 1621)

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

Organic compounds

Amino nitrogen containing

Reexamination Certificate

active

10495278

ABSTRACT:
A process for preparing ethylamines, butylamines and mixed ethyl/butylamines comprising the following steps:(i) Hydroamination of butadiene and ethylene by means of a monoalkylamine and/or a dialkylamine in which alkyl=ethyl and/or butyl in the presence of an alkali metal amide as catalyst,(ii) isomerization of the amines obtained in the hydroamination (i), if appropriate under the following conditions:(iia) prior fractionation into particular fractions and/or(iib) isomerization under hydrogenating conditions and/or(iic) isomerization in the presence of ammonia,(iii) fractionation of the resulting product mixture with isolation of the desired product amines and recycle of the amines suitable as starting material to step (i).

REFERENCES:
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patent: 5763668 (1998-06-01), Dingerdissen
patent: 6576796 (2003-06-01), Funke et al.
patent: 100300619 (2002-01-01), None
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J. Am. Chem.Soc. 76 (1954) pp. 1895-1902.

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