Integrated process for the production of 2,6-dimethylnaphthalene
US7718836B2 · kind B2 · utility
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28Claims
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Key dates
| Filing date | Jun 6, 2002 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Nov 30, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to an integrated process for the production of high purity 2,6-dimethylnaphthalene starting from hydrocarbon mixtures containing naphthalene and/or isomers of methylnaphthalene and/or isomers of dimethylnaphthalene and/or isomers of polymethylnaphthalene, and from an alkylating agent, preferably methanol, reacted in the presence of a methylated benzene solvent or mixture of various methylated benzene solvents, preferably selected from toluene, xylene and trimethylbenzene, and a catalyst consisting of ZSM-12 zeolite and an inorganic ligand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.