Process for removing naphthalene from alkylaromatics
US7189887B2 · kind B2 · utility
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Key dates
| Filing date | Dec 13, 2004 |
| Grant date | Mar 13, 2007 |
| Priority date | — |
| Expiry date | May 7, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S203/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the reduction of naphthalene in process streams containing alkylaromatic solvents. Naphthalene is contacted with alkylbenzenes in a distillation column reactor in the presence of transalkylation catalyst to produce alkylnaphthalenes which are concurrently separated by fractional distillation as bottoms and the alkylbenzenes are separated as overheads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.