CATALYST FOR PRODUCING ETHYLENE OXIDE AND METHOD FOR PRODUCING ETHYLENE OXIDE BY USING THE SAME

PROBLEM TO BE SOLVED: To prevent gradual deterioration of a conversion rate and a selection rate to ethylene oxide even in the long time use when ethylene oxide is produced by oxidizing ethylene by using a catalyst.SOLUTION: A catalyst for producing ethylene oxide is obtained by supporting a catalyt...

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Hauptverfasser:	HASHIMOTO TAKAAKI, SHIMA MASAHIDE, SENTO JUN, OBAYASHI NOZOMI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HETEROCYCLIC COMPOUNDS 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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Zusammenfassung:	PROBLEM TO BE SOLVED: To prevent gradual deterioration of a conversion rate and a selection rate to ethylene oxide even in the long time use when ethylene oxide is produced by oxidizing ethylene by using a catalyst.SOLUTION: A catalyst for producing ethylene oxide is obtained by supporting a catalytic component containing silver (Ag), cesium (Cs), rhenium (Re), and at least one element selected from a group of tungsten (W), molybdenum (Mo), chromium (Cr) and vanadium (V), on a zirconium-containing alumina carrier. The zirconium content of the carrier is 50-900 ppm.