PREPARATION OF HYDROGENATION CATALYST OF OXALIC DIESTER

PURPOSE:To obtain the highly active hydrogenation catalyst containing no chromium by a method wherein an aqueous solution containing an anime complex of copper is contacted with a metal oxide having a surface hydroxyl group under an alkaline condition and the treated metal oxide is subjected to redu...

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Hauptverfasser:	NAKAMURA YASUO, MIYAZAKI HARUHIKO, HIRAI KOUICHI, IKEZAWA SEIZOU, UDA TAIZOU, TSUCHIE TAKANORI
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS GENERAL METHODS OF ORGANIC CHEMISTRY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain the highly active hydrogenation catalyst containing no chromium by a method wherein an aqueous solution containing an anime complex of copper is contacted with a metal oxide having a surface hydroxyl group under an alkaline condition and the treated metal oxide is subjected to reduction treatment. CONSTITUTION:As the hydrogenation catalyst used in selectively preparing ethylene glycol or glycolic ester by hydrogenating oxalic diester, one prepared by a method wherein an aqueous solution containing an anime complex of copper is contacted with a metal oxide having a surface hydroxyl group such as TiO2, SiO2 or the like under an alkaline condition and the resulting treated metal oxide is subjected to reduction treatment is used. This hydrogenation catalyst contains no chromium and generates reaction with good efficiency.