PROCESS FOR PREPARING OXALIC ACID AND ESTERS OF SAME

The present invention relates to a process for preparing 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 p...

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Bibliographic Details
Main Authors GARDANO, ANDREA, CASSAR, LUIGI
Format Patent
LanguageEnglish
French
Published 18.12.1979
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:The present invention relates to a process for preparing 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 consisting 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 consisting of hydrogen and alkyl radicals having from 1 to 10 carbon atoms.
Bibliography:Application Number: CA19760243898