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Washing platinum, germanium, rhenium, alumina catalysts - with water to regulate their chlorine content and increase their hydrocarbon conversion activity
Washing platinum, germanium, rhenium, alumina catalysts - with water to regulate their chlorine content and increase their hydrocarbon conversion activity
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机译:用水洗涤铂,锗,rh,氧化铝催化剂,以调节其氯含量并提高其烃转化活性
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摘要
The process of the parent patent for regulation the Cl content of hydrocarbon-conversion catalysts by washing with liq. H2O followed by drying, calcination in air and redn. treatment, is applied to catalysts comprising Pt in free or combined form and Ge and/or Re in free or combined form on an Al2O3 support. Washing is pref. effected with distd. H2O at 30-100 degrees C until the Cl content of the catalyst no longer changes. The washing has the effect of removing a cpd. with approx. the stoichiometry of AlCl3 which impairs the properties of the catalyst.
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