Method of separating methylolphenols from solutions
US3981929A · kind A · utility
11Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 1974 |
| Grant date | Sep 21, 1976 |
| Priority date | — |
| Expiry date | May 16, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C37/86
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method of separating methylolphenols from an organic solution containing the methylolphenols by contacting the organic solution with an aqueous alkaline borate solution in which lithium ions are present in a quantity greater than any other single alkali metal ion for a period of time sufficient to form a solid complex of the lithium and boron with the methylolphenols which then are separated from the organic solution. The methylolphenols subsequently may be recovered from the complex by decomposing the complex with acid and dissolving the released methylolphenols in an organic solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.