Patent ID: 6406614
Filing Date: 2002-06-18
Classification: B01J,C10G

Abstract:
A method of preparing a catalyst composition comprising the steps of:contacting a zeolite with a solution comprising an organic solvent and an organo-platinum compound thereby forming a mixture comprising said solution and a treated zeolite having externally and internally associated organo-platinum compound; removing at least a substantial portion of said organic solvent from said mixture by vacuum assisted evaporation at a temperature below the thermal decomposition temperature of said organo-platinum compound thereby leaving said treated zeolite; and thereafter, calcining said treated zeolite in the presence of a calcining gas by heating said treated zeolite to a first temperature in the range of from about 100Â° C. to 150Â° C. and for a time period in the range of from about 0.1 hour to about 10 hours, followed by heating said treated zeolite to a second temperature in the range of from about 300Â° C. to about 360Â° C. and for a time period in the range of from about 0.1 hour to about 10 hours thereby forming a calcined-treated zeolite.