BPA process improvement
US7902408B2 · kind B2 · utility
1Cited by
9References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 1, 2008 |
| Grant date | Mar 8, 2011 |
| Priority date | — |
| Expiry date | Dec 8, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present disclosure enables phenol recovery, purification and recycle in a simple, economic manner from waste streams from, for example, a phenol/acetone production process, e.g., a phenol/acetone plant or an upstream cumene hydroperoxide cleavage process step, and BPA production step, for use in the reaction with acetone to produce BPA. The disclosure therefore reduces the overall consumption of phenol in the production of BPA.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.