Catalysts and processes for the preparation of unsaturated nitriles
US4000177A · kind A · utility
3Cited by
8References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1975 |
| Grant date | Dec 28, 1976 |
| Priority date | — |
| Expiry date | Mar 25, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Catalysts for the preparation of unsaturated nitriles by the ammoxidation of olefins, the catalysts comprising oxides of antimony, tin, tungsten, and copper having the general formula EQU Sb.sub.a Sn.sub.b W.sub.c Cu.sub.d O.sub.e (I) wherein a is from one to ten, b is from one to ten, c is from 0.01 to 5, d is from 0.01 to 5, and e is the number of oxygen atoms in combination with the metallic elements of formula (I), together with processes for preparing unsaturated nitriles by olefin ammoxidation, and particularly for preparing acrylonitrile from propylene, utilizing such catalysts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.