Patent · US Active

Three-layered, four-layered, or five-layered catalyst systems for producing phthalic anhydride

US7985705B2 · kind B2 · utility

4Cited by

11References

1Claims

0Family size

Assignee

BASF SE

Inventors

Sebastian Storck · Mannheim, DE
Jürgen Zühlke · Speyer, DE
Samuel Neto · Brussels, BE
Frank Rosowski · Mannheim, DE

Key dates

Filing date	Feb 18, 2010
Grant date	Jul 26, 2011
Priority date	—
Expiry date	Feb 18, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2523/00
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Catalyst systems for preparing phthalic anhydride by means of gas-phase oxidation of o-xylene and/or naphthalene, and a process for preparing phthalic anhydride using the catalyst systems.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.