Process for the preparation of organic solutions
US6727393B2 · kind B2 · utility
0Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2002 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Dec 16, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C37/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of a solution of a quaternary cation and an anion from a deprotonated hydroxy aromatic in an organic solvent by means of a reactive extraction of a quaternary salt in the presence of an aqueous hydroxide solution, a hydroxy aromatic and an organic solvent is disclosed. Also disclosed is a process for the recycling of a quaternary salt phenolate solution from a reaction mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.