C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 53/00 (2006.01) C07C 51/487 (2006.01) C07C 51/573 (2006.01)
Patent
CA 2098378
Unsaturated ketones such as mesityl oxide may be removed from acetic anhydride, or mixtures of acetic anhydride and acetic acid, by heating a solution comprising (1) acetic anhydride, or a mixture of acetic anhydride and acetic acid, (2) an .alpha.,.beta.-unsaturated ketone, (3) ferrous (Fe II) and/or cobaltous (Co II) ion, (4) a cation selected from alkali metals, alkaline earth metals, quaternary organoammonium, quaternary organophosphonium and mixtures thereof, and (5) iodide ion.
Des cétones non saturées, comme l'oxyde de mésityle, peuvent être éliminées dans l'anhydride acétique ou dans des mélanges d'anhydride acétique et d'acide acétique, par chauffage d'une solution renfermant (1) de l'anhydride acétique ou un mélange d'anhydride acétique et d'acide acétique, (2) une cétone insaturée en alpha,bêta, (3) un ion ferreux (Fe II) et (ou) cobalteux (Co II), (4) un cation choisi parmi des métaux alcalins, alcalino-terreux, un organoammonium quaternaire, un organophosphonium quaternaire et leurs mélanges, et (5) un ion iodure.
Moncier Regina M.
Outlaw Charles E.
Zoeller Joseph R.
Eastman Chemical Company
Gowling Lafleur Henderson Llp
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