PRODUCTION OF GLYCOLIC ACID

PURPOSE: To produce glycolic acid industrially advantageously without requiring high temperature or high pressure in a relatively short reaction time at a high yield and a high selectivity by using inexpensive ethylene glycol as a raw material. CONSTITUTION: In producing glycolic acid by subjecting...

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Hauptverfasser: WAKIMURA KAZUO, SEZAKI YOSHIHIRO, HASE TADAHARU, MIURA TOSHIO, FUJITA KOJI
Format: Patent
Sprache:eng
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Zusammenfassung:PURPOSE: To produce glycolic acid industrially advantageously without requiring high temperature or high pressure in a relatively short reaction time at a high yield and a high selectivity by using inexpensive ethylene glycol as a raw material. CONSTITUTION: In producing glycolic acid by subjecting ethylene glycol to contact oxidation in an oxygen-containing gas, the reaction is performed in the co-existence of a platinum element of at least one kind selected from ruthenium, rhodium, palladium, osmium, iridium and platinum as a catalyst component and an element of at least one kind selected from a group composed of vanadium, chromium, molybdenum, manganese, iron, cobalt, nickel, copper and zinc as a promoter.