Patent · US Expired

Oxidation catalyst prepared with NH.sub.3

US4170572A · kind A · utility

1Cited by
4References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 16, 1978
Grant dateOct 9, 1979
Priority date
Expiry dateMay 16, 1998

Classification

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

Abstract

An improved process for catalytically oxidizing alpha-beta unsaturated aliphatic aldehydes in the vapor phase with molecular oxygen to produce alpha-beta unsaturated carboxylic acids using a catalyst composition which has been thermally activated in the presence of ammonia, and which comprises the elements Mo, V, W, Cr and Cu.

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