Trimethylaluminum process
US4925962A · kind A · utility
6Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1988 |
| Grant date | May 15, 1990 |
| Priority date | — |
| Expiry date | Oct 24, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F5/062
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Trimethylaluminum is made by gradually feeding a methyl halide to a reaction vessel containing a tri-C.sub.2+ alkylaluminum (e.g. triethylaluminum) and a catalyst formed from a bismuth compound and an alkyl or aryl organoaluminum compound thereby forming trimethylaluminum and C.sub.2+ alkyl halide and continuously distilling the C.sub.2+ alkyl halide, and any methyl halide that fails to react, from the reaction vessel thereby avoiding the accumulation of trialkylaluminum and alkyl halide which not only tends to form alkylaluminum halides but can be very hazardous on a large scale if a temperature excursion should occur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.