Process for the production of bisphenol A
US6512148B1 · kind B1 · utility
5Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2001 |
| Grant date | Jan 28, 2003 |
| Priority date | — |
| Expiry date | Sep 26, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2531/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the production of bisphenol A, including providing a melt of a crystalline adduct of bisphenol A and phenol, contacting the melt with a cation donating solid to neutralize the strong acid therewith, and then heating the melt to vaporize and remove phenol from the melt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.