Catalyst for bisphenol compound production and process for producing bisphenol compound with the catalyst
US6825386B2 · kind B2 · utility
2Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2003 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Aug 27, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2231/347
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Provided are a catalyst of high activity and good heavy substance resistance and alcohol resistance for production of bisphenols, and a method for producing bisphenols with the catalyst. The catalyst is a sulfonic acid-type cation-exchange resin modified with (a) a pyridinealkanethiol and (b) an aminoalkanethiol and/or a thiazolidine; and the method comprises reacting a phenol and a ketone in the presence of the catalyst for producing bisphenols.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.