Process for the production of phthalic anhydride
US4435580A · kind A · utility
1Cited by
1References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 3, 1982 |
| Grant date | Mar 6, 1984 |
| Priority date | — |
| Expiry date | May 3, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/313
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A system for producing phthalic anhydride by the catalytic oxidation of naphthalene, wherein without creating a significant pressure drop in the system substantially all of the catalyst particles are removed from the product stream before the product stream is sent to a battery of switch condensers for recovery of the phthalic anhydride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.