C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/486.7
C07C 69/36 (2006.01) C07C 67/36 (2006.01)
Patent
CA 1113490
ABSTRACT OF THE DISCLOSURE: The present invention concerns a process for the preparation of an ester of oxalic acid. More particularly, the present invention relates to a catalytic process for the prep- aration of esters of oxalic acid by the reaction of carbon mon- oxide with alcoxyl copper salts in the presence of palladium salts. The esters prepared according to the present invention may be converted to the acid according to traditional techniques (e.g. hydrolysis. The acid or the oxalic esters are of consider- able industrial interest. Oxalic acid may find its use in the field of the textile industry as an auxiliary stripping agent in the dyeing of wool, as bleaching agent for natural fibres or as pickling agent for metal surfaces, especially for copper. In industry, it is also known for its use as dehydrogenating agent in condensation reactions. Finally, the esters are known solvents, such as, for instance, the diethylester for cellulose.
275911
Agnes Giovanni
Bimbi Giuseppe
Guerrieri Franco
Rucci Guglielmo
Montedison S.p.a.
Robic Robic & Associes/associates
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