Recovery of acetyl values from ethylidene diacetate

Details Recovery of acetyl values from ethylidene diacetate Recovery of acetyl values from ethylidene diacetate

C - Chemistry, Metallurgy

07

C

C07C 53/08 (2006.01) C07C 51/09 (2006.01) C07C 51/235 (2006.01)

Patent

CA 2108970

2108970 9221642 PCTABS00017 Disclosed is a process for the recovery of acetyl values from an ethylidene diacetate stream obtained from an acetic anhydride production system. The process comprises hydrolyzing ethylidene diacetate in a liquid phase, hydrolysis zone containing a non-volatile, acidic catalyst and maintained under boiling conditions to obtain a mixture of acetaldehyde, acetic acid and water and then oxidizing the mixture in a liquid phase, oxidation zone containing a cobalt oxidation catalyst to obtain a mixture of acetic acid and water. The process optionally includes a means for reducing substantially the concentration of iodine in the EDA used in the process.

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