Process for preparing oxalic acid and esters of same

Details Process for preparing oxalic acid and esters of same Process for preparing oxalic acid and esters of same

C - Chemistry, Metallurgy

07

C

260/486.7, 260/5

C07C 55/06 (2006.01) C07C 51/145 (2006.01) C07C 69/36 (2006.01)

Patent

CA 1068297

ABSTRACT OF THE DISCLOSURE: The present invention relates to a process for pre- paring oxalic acid and esters of same. More particularly, this invention relates to a catalytic process for preparing oxalic acid and esters of same by oxidative reaction in a liquid phase of carbon monoxide and water or alcohols with oxygen in the presence of redox systems. The catalyst systems used in accordance with this invention comprises a redox catalyst con- sisting essentially of a salt of Pd (II) and salts of a metal more electropositive than Pd having at least two oxidation states and, optionally, salts of alkaline metals, and co-catalytic amounts of at least one base having the formula R2NH in which the groups R which may be like or unlike are selected from the group con- sisting of hydrogen and alkyl radicals having from 1 to 10 car- bon atoms.

243898

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