Method of making dimethylnaphthalenes
US5955641A · kind A · utility
30Cited by
29References
50Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 1998 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | May 28, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/30
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The method of the invention includes making dimethyinaphthalenes by first contacting, in an alkylation zone, at alkylation conditions, a toluene-containing stream with a pentene-containing stream in the presence of an acid alkylation catalyst. At least a portion of the toluene and pentenes react to form pentyltoluenes. At least a portion of the pentyltoluenes is then contacting in a reforming zone with reforming catalyst, at reforming conditions. At least a portion of the pentyltoluenes is converted to dimethylnaphthalenes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.