Preparation of linear polyethylenepolyamines with silica-alumina catalysts
US4547591A · kind A · utility
34Cited by
2References
4Claims
0Family size
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Key dates
| Filing date | Dec 16, 1983 |
| Grant date | Oct 15, 1985 |
| Priority date | — |
| Expiry date | Dec 16, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C209/16
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a process for preparing predominantly linear polyethylenepolyamines from the catalyzed reaction of (1) an ethyleneamine and an alkanolamine, (2) ethyleneamines or (3) an alkanolamine and ammonia. The catalyst employed is a silica-alumina catalyst. An acidic phosphorus cocatalyst may be used in conjunction with the silica-alumina catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.