Drying of hydrocarbon/hydrochloric acid/water admixtures

Liquid purification or separation – Processes – Ion exchange or selective sorption

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34 9, 55 35, 570211, 570239, 570262, 585820, 585823, 585824, C02F 128

Patent

active

051981211

ABSTRACT:
Water-containing mixtures of at least one hydrocarbon/halocarbon and hydrochloric acid, e.g., the methyl chloride feedstream in conventional process for the synthesis of chloromethanes, are desiccated by intimately contacting such mixtures with an effective drying amount of an essentially anhydrous drying agent that includes (i) a metal sulfate, chloride or perchlorate, or (ii) phosphorus pentoxide.

REFERENCES:
patent: 2203144 (1940-06-01), Hammond
patent: 2888494 (1959-05-01), Kissling
patent: 3267644 (1966-08-01), Jacobowsky
patent: 4145260 (1979-03-01), Steele et al.
patent: 4307260 (1981-12-01), Moore et al.
patent: 4418233 (1983-11-01), Danz et al.
patent: 4663052 (1987-05-01), Sherman et al.
Kirk-Othmer, Concise Encyclopedia of Chemical Technology, 1985, pp. 374-375.

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