Production and use of dialkylbiphenyl isomer mixtures
US9856186B2 · kind B2 · utility
1Cited by
28References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2015 |
| Grant date | Jan 2, 2018 |
| Priority date | — |
| Expiry date | Jan 4, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process is described for converting at least one isomer of a dialkyl-substituted biphenyl compound, such as at least one 2,X′ dialkylbiphenyl isomer (where X′ is 2′, 3′ and/or 4′), into at least one different isomer, 3,3′, 3,4′ and/or 4,4′ dialkylbiphenyl isomer. The process comprises contacting a feed comprising the dialkyl-substituted biphenyl compound isomer with an acid catalyst under isomerization conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.