Catalyst removal from alcohol alkoxylates
US4329515A · kind A · utility
1Cited by
4References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 28, 1980 |
| Grant date | May 11, 1982 |
| Priority date | — |
| Expiry date | Nov 28, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C41/03
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Basic compounds of Ba and Sr used in the production of peaked alcohol alkoxylates can be removed from the products by precipitating with some polybasic organic acids. Examples of effective acids include glutaric, diglycolic, adipic, and azelaic acids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.