Patent · US Expired

Production of unsaturated nitriles

US4139552A · kind A · utility

13Cited by
8References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 4, 1974
Grant dateFeb 13, 1979
Priority date—
Expiry dateJan 4, 1994

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02P20/52
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

Catalysts containing iron, molybdenum, bismuth and nickel, cobalt, magnesium, zinc, cadmium, calcium or beryllium have been found to give especially large volumes of acrylonitrile or methacrylonitrile in a given time when manganese, antimony, thorium, zirconium, yttrium or mixtures thereof are incorporated into the catalyst.

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