Patent · US Active

Alkali metal-modified vanadium-phosphorus oxide (VPO) catalyst

US9931618B2 · kind B2 · utility

2Cited by

32References

12Claims

0Family size

Assignee

CLARIANT INTERNATIONAL LTD · CH

Inventors

Thomas Cotter · Cypress, US
Andreas Reitzmann · Stephanskirchen, DE
Gerhard Mestl · Munich, DE
Gabriele Donabauer · Bruckmühl, DE
Susanne Roehrer · Bad Aibling, DE

Key dates

Filing date	Mar 30, 2015
Grant date	Apr 3, 2018
Priority date	—
Expiry date	Mar 30, 2035

Classification

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

Abstract

The present invention relates to a catalyst containing a vanadium-phosphorus oxide and an alkali metal, wherein the proportion by weight of alkali metal in the vanadium-phosphorus oxide is in the range from 10 to 400 ppm, based on the total weight of the vanadium-phosphorus oxide, a process for producing it and also the use of the catalyst for the gas-phase oxidation of hydrocarbons, in particular for preparing maleic anhydride.

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