Method for purification of ethylene compounds having fluorine-co

Details Method for purification of ethylene compounds having fluorine-co Method for purification of ethylene compounds having fluorine-co

1991-07-03

1992-11-24

Mars, Howard T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568615, 568674, 568677, 568682, 568699, 570158, 570177, 570171, 570180, C07C 4134, C07C 1738

Patent

active

051664534

ABSTRACT:
A purification method of a fluorine-containing alkylethylene comprises reacting the fluorine-containing alkylethylene with powdered metallic zinc in the presence of an aqueous acetic acid solution. By this method, fluorine-containing alkyl iodide and fluorine-containing alkylethyl iodide, contained as impurities in the fluorine-containing alkylethylene, can be removed effectively, for example, to a level of 1 ppm or below.

REFERENCES:
patent: 3046261 (1962-07-01), Iserson
patent: 3053815 (1962-09-01), Barr
patent: 3317618 (1967-05-01), Haszeldine
patent: 4275226 (1981-06-01), Yamabe et al.

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