Method of manufacturing ethyleneamines
AssigneeUnion Carbide Chemicals & Plastics Technology Corporation
InventorsDavid M. Petraitis, Stephen W. King, Thomas Z. Srnak
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Abstract
The present invention provides methods of manufacturing ethyleneamines that makes use of an ethyleneamine-generating process that is coupled to a transamination process. The combination of an ethyleneamine-generating process with a transamination process improves the mix flexibility that can be obtained from the single process allowing the production of ethyleneamine compositions having an improved and more desirable product mix.
Claims20
A method of manufacturing ethyleneamines, the method comprising the steps of:
- (a) manufacturing an ethyleneamines composition comprising a mixture of ethyleneamines using an ethyleneamine-generating process;
- and
- (b) transaminating at least a portion of the ethyleneamines composition in the presence of a hydrogenation/dehydrogenation catalyst to form a transaminated ethyleneamines composition;
- wherein the transaminated ethyleneamines composition comprises at least one ethyleneamine that is present in an amount that is greater than an amount that the at least one ethyleneamine is present in the ethyleneamines composition that is transaminated in step (b).
A method of manufacturing ethyleneamines, the method comprising the steps of:
- (a) manufacturing an ethyleneamines composition comprising one or more ethyleneamines using an ethyleneamine-generating process selected from an ethylenedichloride (EDC) process, a reductive amination (RA) process, and a condensation process;
- and
- (b) transaminating at least a portion of the ethyleneamines composition in the presence of a transamination catalyst to form a transaminated ethyleneamines composition;
- wherein the transaminated ethyleneamines composition comprises at least one ethyleneamine that is present in an amount that is greater than an amount that the at least one ethyleneamine is present in the ethyleneamines composition that is transaminated in step (b).
Dependencies are inferred from the claim text.