Method to defoul bisphenol-phenol adduct fouled crystallizer coolers
US5856589A · kind A · utility
2Cited by
4References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 8, 1997 |
| Grant date | Jan 5, 1999 |
| Priority date | — |
| Expiry date | Aug 8, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C39/16
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An improvement in the continuous preparation of a bisphenol comprising maintaining the efficiency of the adduct crystallizer. The improvement comprises maintaining the Delta-T of the crystallizer at less than about 4.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.