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A process for improving the ASTM color of lube stocks which comprises contacting crude lube stock, at a temperature between 400 DEG and 850 DEG F., a pressure between 100 and 3000 psig, and in the presence of gaseous hydrogen, with a hydrofining catalyst having a mean pore diameter of at least 140 A...

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Hauptverfasser:	BRIDGE, ALAN GEORGE, EL CERRITO, GUENTHER, LLOYD MATHEW, ORINDA
Format:	Patent
Sprache:	ger
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CRACKING HYDROCARBON OILS FUELS LUBRICANTS METALLURGY MINERAL WAXES PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	A process for improving the ASTM color of lube stocks which comprises contacting crude lube stock, at a temperature between 400 DEG and 850 DEG F., a pressure between 100 and 3000 psig, and in the presence of gaseous hydrogen, with a hydrofining catalyst having a mean pore diameter of at least 140 A. Preferred hydrofining catalysts include compositions containing Group VIB or Group VIII metals and a refractory support and dispersed metal phosphate particles such as titanium phosphate.