Catalysts and processes for the preparation of unsaturated nitriles
US4035410A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1975 |
| Grant date | Jul 12, 1977 |
| Priority date | — |
| Expiry date | Mar 25, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Catalysts for the preparation of unsaturated nitriles by the ammoxidation of olefins, such catalysts being oxides of antimony and of tin together with one or more polyvalent metal oxides and one or more monovalent metal compositions of the general formula EQU Sb.sub.a Sn.sub.b (Me.sub.c).sub.m (A.sub.d).sub.n O.sub.e (I) wherein Me represents a polyvalent metal and A a monovalent metal; a is from one to ten, b is from one to ten, c is from 0.01 to five, and d is from 0.01 to five; m and n are integers equal to or greater than one; and e is the number of oxygen atoms combined with the metallic elements, together with processes for preparing nitriles by ammoxidation of olefins, especially acrylonitrile from propylene, utilizing such ammoxidation catalysts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.