Patent ID: 9492817
Filing Date: 2016-11-15
CPC Classification: B01J,C01B,C01P,C10G

Claim Text:
1. A process for modifying the physical and chemical properties of Faujasite Y-type zeolites, comprising: a) contacting a Faujasite Y-type zeolite, with glycerol, in a concentration ranging from 0.01 to 1 g of solid per milliliter of glycerol, at a temperature ranging from 100 to 260° C., for a time from 0.5 to 8 hours, to form a gel; b) adding one or more ammonium salts to the gel to form a mixture, stirring the mixture for 15 to 60 min., subjecting the mixture to hydrothermal treatment at 95-250° C., for from 5 to 40 hours, cooling the mixture to 15 to 25° C.; and c) recovering a product obtained in step (b) by means of filtration and/or centrifugation, washing the solid with water and drying at 80-120° C. to obtain a dried solid, then subjecting the dried solid to a thermal treatment at 350 to 550° C. for 2 to 8 hours at a heating rate from 1 to 3° C./min, to obtain a modified Faujasite Y-type zeolite where the sodium content is reduced up to 75% with respect to the Faujasite Y-type zeolite of step (a) along with a mesoporous material made in situ having an average pore size ranging from 2 to 100 nm.