Recyclable boron trifluoride catalyst and method of using same

Details Recyclable boron trifluoride catalyst and method of using same Recyclable boron trifluoride catalyst and method of using same

1979-11-23

1980-10-07

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

585525, C07C 356, C07C 318

Patent

active

042270278

ABSTRACT:
When saturated with boron trifluoride, certain polyhydric alcohols form adducts which catalyze hydrocarbon alkyl transfer 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, and the oligomerization of decene by a recycled adduct of boron trifluoride with mannitol or butanediol. Some of the catalysts become viscous on cooling and are thus more easily separated from the reaction products which remain in a separate liquid phase.

REFERENCES:
patent: 2425839 (1947-08-01), Schulze et al.
patent: 3382291 (1968-05-01), Brennan
patent: 3780128 (1973-12-01), Shubkin
patent: 3957664 (1974-05-01), Heilman et al.
patent: 4032591 (1977-06-01), Cupples et al.
patent: 4045507 (1977-08-01), Cupples et al.
patent: 4045508 (1977-08-01), Cupples et al.
patent: 4172855 (1979-10-01), Shubkin

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