Method for removing iodine compounds contained in organic medium

Details Method for removing iodine compounds contained in organic medium Method for removing iodine compounds contained in organic medium

1997-04-08

1998-09-01

Geist, Gary

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

Organic compounds

Carboxylic acids and salts thereof

562607, 562898, C07C 5142, C07C 5308, C07C 51573

Patent

active

058012796

ABSTRACT:
An object of the present invention is to provide an operating method which can reduce the amount of silver or mercury dissolved in a solution after contact and can increase the usage of silver or mercury without installing new treating facilities in a process for removing iodine compounds contained in an organic medium, particularly acetic acid or a mixture of acetic acid or acetic anhydride, by contacting them with a cation exchange resin in which at least 1% of the active sites are converted to a silver form or a mercury form.
The operating method described above is characterized by carrying out the operation while elevating the temperatures in stages while contacting the organic medium, particularly acetic acid or a mixture of acetic acid and acetic anhydride, containing the iodine compounds with a cation exchange resin.

REFERENCES:
patent: 4615806 (1986-10-01), Hilton
patent: 5139981 (1992-08-01), Kurland
patent: 5220058 (1993-06-01), Fish et al.
patent: 5227524 (1993-07-01), Jones

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