Catalyst for oxidation or ammoxidation, and process for producing the same
US7919430B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2007 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Mar 10, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
It is an object to provide a novel oxide catalyst for producing an unsaturated acid or unsaturated nitrile by which reaction results are good and a high yield can be stably maintained for a prolonged period of time, a process for producing the oxide catalyst, and a process for producing an unsaturated acid or unsaturated nitrile using the oxide catalyst. According to the present invention, there is provided an oxide catalyst represented by following compositional formula (1):Mo1VaSbbNbcMndWeYfOn (1)wherein Y represents at least one element selected from alkaline earth metals and rare earth metals; a, b, c, d, e, f, and n each represents an atomic ratio based on one atom of Mo; 0.1≦a≦1, 0.01≦b≦1, 0.01≦c≦1, 0≦d≦0.1, 0≦e≦0.1, 0<(d+e)≦0.1, 0≦f≦1; and n is a number determined by valencies of the constituent metals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.