Process for removing iodide compounds from carboxylic acids and

Details Process for removing iodide compounds from carboxylic acids and Process for removing iodide compounds from carboxylic acids and

1993-06-03

1994-09-06

Prescott, Arthur C.

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

Organic compounds

Carboxylic acids and salts thereof

210665, C07C 5147, C07C 51573, C07C 5308

Patent

active

053449762

ABSTRACT:
In a process for removing iodide compounds from a liquid composition comprising carboxylic acids having 2 to 6 carbon atoms or anhydrides thereof, by passing the liquid composition through a silver, mercury, palladium and/or rhodium-exchanged strong acid cation exchange resin, prior to contacting with the metal-exchanged resin the composition is contacted with a cation exchanger in the acid form to remove at least a portion of the metal ion contaminants in the liquid composition which have been found to displace the silver, mercury, palladium and/or rhodium from the metal-exchanged resin.

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Amberlyst 15, Technical Bulletin, Rohm & Haas, 1978.
Chemical Processing by Ion Exchange, p. 14, Ion Removed from Glacial Acetic Acid (1978).
Kunin, Amber-Hi-lite, No. 78, Nov. 1963, "Macroreticular Ion Exchange Resins".

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