Assertion: acetic anhydride | /r/HasProperty | obtained by liquid-phase carbonylation
Facets:
value: of an appropriate feedstock
type: OTHER
Source sentences:
text: The invention relates to the purification of carboxylic acids and / or their anhydrides, in particular to the removal of iodide impurities from acetic acid and / or acetic anhydride obtained by liquid-phase carbonylation of an appropriate feedstock selected from the group consisting of methanol, diethyl ether, methyl acetate or mixtures thereof.