Process for the reduction of phenol content in a crude organic stream recovered from a phenol stripper
US5487816A · kind A · utility
4Cited by
6References
5Claims
0Family size
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Key dates
| Filing date | Jun 24, 1994 |
| Grant date | Jan 30, 1996 |
| Priority date | — |
| Expiry date | Jun 24, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C37/72
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process to separate in a fractionation zone an admixture comprising phenol, alpha-methylstyrene and water to produce an alpha-methylstyrene stream containing a minimum of phenol. The pH of the overhead aqueous phase is adjusted with a base to greater than about 6.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.