Treatment of sulfur-containing HF-alkylation feed, hydrocarbon p

Details Treatment of sulfur-containing HF-alkylation feed, hydrocarbon p Treatment of sulfur-containing HF-alkylation feed, hydrocarbon p

1980-07-29

1982-02-23

Doll, John

Chemistry of hydrocarbon compounds

Saturated compound synthesis

By condensation of a paraffin molecule with an olefin-acting...

55 71, 423241, 585723, 585842, C07C 256, C07C 258, C07C 710

Patent

active

043169988

ABSTRACT:
HF is removed from hydrocarbon streams, e.g., a propane liquid stream from HF alkylation by water washing, the wash stream being contacted with solid caustic to remove moisture therefrom. The used wash water containing HF is combines with aqueous caustic obtained from said contacting and the admixture is used to contact HF acid soluble oil to remove HF therefrom. The thus, used aqueous stream separated from this last contacting is reacted with a calcium compound to form insoluble calcium fluoride and a supernatant aqueous liquid containing regenerated caustic. The regenerated caustic is used to remove the sulfur compounds from the alkylation hydrocarbons feed.

REFERENCES:
patent: 2282712 (1942-05-01), Engs et al.
patent: 2288865 (1942-07-01), Baehr et al.
patent: 2371759 (1945-03-01), King et al.
patent: 3886220 (1975-05-01), Carter
patent: 4123351 (1978-10-01), Chapman et al.
The Merck Index, 8th Ed., p. 855 (1968).

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