Patent ID: 11932546
Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
Field: Chemical engineering (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A method for making a modified zeolite, the method comprising:
dehydroxylating an initial zeolite to from a dehydroxylated zeolite, wherein dehydroxylating the initial zeolite comprises heating the initial zeolite at a temperature of 650° C. to 1100° C. and at a pressure of less than 10−2 mbar;
reacting an organometallic chemical with the dehydroxylated zeolite, wherein the dehydroxylated zeolite comprises a microporous framework comprising a plurality of micropores having diameters of less than or equal to 2 nm, wherein the microporous framework comprises at least silicon atoms and oxygen atoms, and wherein the dehydroxylated zeolite comprises isolated terminal silanol functionalities comprising hydroxyl groups bonded to silicon atoms of the microporous framework;
wherein the reacting of the organometallic chemical with the dehydroxylated zeolite forms the modified zeolite comprising organometallic moieties each bonded to an oxygen atom of the modified zeolite, wherein the organometallic moiety comprises a portion of the organometallic chemical; and
wherein the organometallic chemical comprises hafnium.