Back to results
US 4,362,886 AGranted
Preparation of linear polyalkylene polyamines using metal catalyst
AssigneeAir Products and Chemicals, Inc.
InventorsMichael E. Ford, Thomas A. Johnson
Life of this patent
Estimating the term…
Abstract
A process for selectively preparing predominantly non-cyclic polyalkylene polyamine compounds is disclosed wherein an alkylene polyamine compound is contacted with a hydroxy compound in the presence of a catalytically effective amount of a substance of arsenic, antimony or bismuth at a temperature of from 250.degree. to 300.degree. C. under a pressure sufficient to maintain the reaction mixture essentially in liquid phase. The polyalkylene polyamine thus formed is recovered from the reaction mixture.
Claims8
A process for preparing a noncyclic polyalkylene polyamine comprising the steps of:
- contacting an alkyleneamine compound having two primary amino groups of the formula:
- ##STR4## wherein R is hydrogen or a lower alkyl, X is a number from 2 to about 6, and Y is a number from 1 to about 4 with a hydroxy compound having primary or secondary hydroxyl groups of the general formula:
- ##STR5## wherein R is hydrogen or a lower alkyl, X is a number from 2 to about 6;
- and Y is a number from 0 to about 3;
- said contacting being performed in the presence of a catalytically effective amount of a compound containing bismuth, arsenic or antimony at temperatures sufficient to effect reaction between said alkyleneamine and said hydroxy compound under a pressure sufficient to maintain the reaction mixture essentially in liquid phase.
2 more elements
Dependencies are inferred from the claim text.