Method for continuous synthesis of acylnaphthalene with acylation liquid
US12312304B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2022 |
| Grant date | May 27, 2025 |
| Priority date | — |
| Expiry date | Dec 1, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/00898
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for continuous synthesis of acylnaphthalene includes: mixing a raw solution containing 2-methylnaphthalene with an acylation liquid to obtain an acylation reaction liquid with a molar ratio of the 2-methylnaphthalene: the acylation agent: the Lewis catalyst of 1:1.3:1.5; adding the acylation reaction liquid into a microchannel reactor and a plurality of kettle reactors connected in series to perform acylation reaction, performing hydrolysis reaction on the acylation reaction liquid immediately after the acylation reaction liquid flows out of the plurality of kettle reactors to obtain a mixed solution, and subjecting the mixed solution to separation, rectification and crystallization, to obtain 2-methyl-6-propionylnaphthalene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.