Catalysts and processes for preparing unsaturated nitriles
US4115434A · kind A · utility
3Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1977 |
| Grant date | Sep 19, 1978 |
| Priority date | — |
| Expiry date | Apr 22, 1997 |
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 a combination of the oxides of antimony, tin, zirconium, copper, and tungsten having the general formula: EQU Sb.sub.a Sn.sub.b Zr.sub.c Cu.sub.d W.sub.e O.sub.f where a is from 1 to 10, b is from 1 to 10, c is 1, d is from 0.01 to 5, e is from 0.01 to 0.05, and f is the number of oxygen atoms in the oxidized combination with the metallic elements, together with processes for the preparation of nitriles by olefin ammoxidation, particularly acrylonitrile produced by ammoxidizing propylene, using such catalysts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.