Recyclable boron trifluoride catalyst and method of using same
US4209654A · kind A · utility
3Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1978 |
| Grant date | Jun 24, 1980 |
| Priority date | — |
| Expiry date | Oct 16, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
When saturated with boron trifluoride, certain polyhydric alcohols form adducts which catalyze reactions for which boron trifluoride is catalytic. The adduct is recovered from the reaction mixture and recycled, greatly reducing boron and fluoride values in the product and in any effluent. Examples include propylation of toluene in the presence of a recycled adduct of boron trifluoride with mannitol or sorbitol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.