Process for HF-catalyzed alkylation of aromatic hydrocarbons

Details Process for HF-catalyzed alkylation of aromatic hydrocarbons Process for HF-catalyzed alkylation of aromatic hydrocarbons

1979-10-09

1980-12-02

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

585456, 585464, C07C 266

Patent

active

042373271

ABSTRACT:
A process for the HF-catalyzed alkylation of aromatic hydrocarbons is disclosed. A first overhead vapor stream removed from a first fractionation column which is used to regenerate the liquid-phase HF is passed directly into an upper intermediate point of a second fractionation column. A hydrocarbon stream containing the feed aromatic hydrocarbon and the product hydrocarbon is separated from liquid-phase HF and is then passed into the second fractionation column. HF dissolved in the hydrocarbon stream is removed from the second column as part of a second overhead vapor stream.

REFERENCES:
patent: 3275702 (1966-09-01), Hutson
patent: 3413373 (1968-11-01), Bloch
patent: 3426092 (1969-02-01), Carson et al.
patent: 3484498 (1969-12-01), Berg
patent: 3494971 (1970-02-01), Fenske
patent: 3501543 (1970-03-01), Hervert
patent: 3721720 (1973-03-01), Chapmen et al.
patent: 3830856 (1974-08-01), Anderson
patent: 3950448 (1976-04-01), Witt
patent: 4072730 (1978-02-01), Winter

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