Olefin metathesis process
US4073820A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 11, 1976 |
| Grant date | Feb 14, 1978 |
| Priority date | — |
| Expiry date | Nov 11, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/66
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
There is disclosed an olefin metathesis process which comprises subjecting at least one olefin to a catalyst system consisting of (1) salts of the metals selected from the group of tungsten, molybdenum and chromium, said salts being halides or the reaction products of these metal halides with carboxylic acids, phenols and 1,3-diketones, (2) a material selected from the group represented by the formulae: EQU R.sub.3-n MX.sub.n and EQU R.sub.3 M.sub.2 X.sub.3 wherein R is an alkyl radical containing from 1 to 12 carbon atoms, M is selected from the group consisting of aluminum, gallium and indium, X is a halogen from the group of fluorine, chlorine, bromine and iodine, and n equals 0, 1 or 2, and (3) a compound defined by the formula: EQU N R.sub.1 R.sub.2 R.sub.3 in which R.sub.1 and R.sub.2 are selected from the group of hydrogen, alkyl, aralkyl, aryl, alkenyl and alkaryl, R.sub.3 is selected from the group of hydrogen, alkyl and alkenyl, said R's containing from 1 to 20 carbon atoms, to produce olefins containing a higher or lower number of carbon atoms than the original olefins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.