Catalyst system and process for producing bisphenol-A
US11260378B2 · kind B2 · utility
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6References
14Claims
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Key dates
| Filing date | Apr 18, 2018 |
| Grant date | Mar 1, 2022 |
| Priority date | — |
| Expiry date | Jul 11, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C39/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst system useful in the production of bisphenol-A comprises (a) an acidic heterogeneous catalyst; (b) a first catalyst promoter comprising at least one organic sulfur-containing compound; and (c) a second catalyst promoter different from the first catalyst promoter and comprising at least one organic Brønsted acidic ionic compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.