Process for the conversion of t-alkylphenol waste distillation bottoms to para-t-alkylphenol
US4812596A · kind A · utility
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2References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1987 |
| Grant date | Mar 14, 1989 |
| Priority date | — |
| Expiry date | Mar 31, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C37/48
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process is provided for converting waste distillation bottoms containing t-alkylphenols with substantial unknown constituents to useable para-t-alkylphenols. The process comprises heating the waste distillation bottoms with phenol and an acid catalyst to effect transalkylation. The waste distillation bottoms typically result from the production of para-t-alkylphenol and/or 2,4-di-t-alkylphenol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.