Oxidative methylation of organic compounds
US4982038A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1990 |
| Grant date | Jan 1, 1991 |
| Priority date | — |
| Expiry date | Apr 25, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S585/943
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for the oxidative methylation of propylene to ethylene and butenes, isobutylene to isoprene, toluene to styrene and enthylbenzene and acetonitrile to acrylonitrile utilizing a series of contact materials comprising at least one Group IIA metal or lanthanum and oxygen; at least two Group IIA metals, Lanthanum Series metals, zinc, or titanium and oxygen, at least one Group IA metal, at least one Group IIA metal, Lanthanum Series metals, zinc or titanium and oxygen, at least one Group IA metal or Group IIA metal, phosphorous and oxygen, cobalt, at least one of zirconium, zinc, nickel, indium, lead or bismuth, phosphorous, at least one Group IA metal and oxygen, or cobalt, at least one Group IA metal, silicon and oxygen
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.