Lewis acid halide catalysts for preparation of polyamines
US4399308A · kind A · utility
14Cited by
8References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 28, 1981 |
| Grant date | Aug 16, 1983 |
| Priority date | — |
| Expiry date | Apr 28, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C213/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for selectively preparing predominantly non-cyclic polyalkylene polyamine compounds is disclosed wherein an alkylene polyamine compound is contacted with an alkanolamine compound in the presence of a catalytically effective amount of a Lewis acid halide substance at a temperature of from 200.degree. to 350.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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.