Removal of halide impurities from organic liquids

Details Removal of halide impurities from organic liquids Removal of halide impurities from organic liquids

1991-11-25

1994-04-05

Dees, Jose G.

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

Organic compounds

Carboxylic acids and salts thereof

560248, 210665, 210679, 210683, 210690, C07C 5142, B01D 1504

Patent

active

053006852

ABSTRACT:
A method is provided for removing iodide compounds, particularly alkyl iodide compounds, from iodine-containing liquids, particularly carboxylic acids and anhydrides manufactured by the carbonylation of alcohols, ethers, esters, and the like in the presence of a rhodium catalyst and an alkali metal or alkaline earth metal salt, particularly a lithium salt, wherein the carboxylic acid or anhydride is contacted with a silver or mercury salt coordinated to a polymeric resin containing functional groups having the capability to quaternize with or form ionic salts with the alkyl halides.

REFERENCES:
patent: 4615806 (1986-10-01), Hilton
patent: 4664753 (1987-05-01), Erpenbach et al.

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