Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1991-09-30
1993-06-15
Dees, Jose G.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
560248, 210665, 210679, 210683, C07C 5142, B01D 1500
Patent
active
052200582
ABSTRACT:
This invention relates tot he use of ion exchange resins having metal-exchanged thiol functional groups in removing iodide impurities from carboxylic acids and/or carboxylic acid anhydrides. More particularly, this invention provides a process for removing iodide impurities from liquid carboxylic acids and/or carboxylic acid anhydrides using ion exchange resins in which thiol functional groups have been exchanged with silver, palladium or mercury.
REFERENCES:
patent: 4615806 (1986-10-01), Hilton
Fish Barry B.
Prince William D.
Spratt Michael P.
Dees Jos,e G.
MacMillan Keith
Trautlein E. C.
Union Carbide Chemicals & Plastics Technology Corporation
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