| abstract |
PROCESS FOR PURIFYING CARBONYLATION PRODUCTS TO REMOVE IODINE IMPURITIES. IODINE IMPURITIES ARE ELIMINATED FROM CARBONYLATION PRODUCTS BY TREATING THESE PRODUCTS WITH ANION EXCHANGE RESIN, FOR EXAMPLE BY SENDING A LIQUID CURRENT OF SUCH PRODUCTS THROUGH A BED OF ANION EXCHANGE RESIN THEN DISTILLING L 'EFFLUENT. APPLICATION: REMOVAL OF ACETIC ACID, ACETIC ANHYDRIDE AND ACETIC ACID ESTERS, OBTAINED BY CATALYTIC CARBONYLATION. |