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US 8,524,624 B2Granted
Mesostructured zeolitic materials, and methods of making and using the same
AssigneeMassachusetts Institute of Technology
InventorJavier Garcia-Martinez
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Abstract
One aspect of the present invention relates to mesostructured zeolites. The invention also relates to a method of preparing mesostructured zeolites, as well as using them as cracking catalysts for organic compounds and degradation catalysts for polymers.
Claims48
A method of making a mesostructure, the method comprising the steps of:
- (a) providing an inorganic material having long-range crystallinity;
- (b) exposing the inorganic material to a pH controlled medium under a first set of time and temperature conditions;
- (c) exposing the inorganic material to a surfactant under a second set of time and temperature conditions;
- and
- (d) adjusting the first and/or the second set of time and temperature conditions to thereby provide a single-phase mesostructured zeolite defining therein a plurality of mesopores, and having long-range crystallinity.
2 more elements
The method of claim, wherein the mesostructured zeolite has a [MCM-41], [MCM-48], [MCM-50] or [SBA-15] pore arrangement.
A method of making a mesoporous inorganic material, said method comprising:
- (a) providing a zeolite material;
- (b) contacting said zeolite material with a basic medium and a surfactant in a reaction mixture, wherein said contacting is carried out under conditions sufficient to increase the mesoporosity of said zeolite material, wherein said contacting forms a single-phase mesostructured zeolite defining a plurality of mesopores;
- and
- (c) recovering said single-phase mesostructured zeolite from said reaction mixture.
1 more element
A method of making a mesoporous inorganic material, said method comprising:
- (a) providing an initial zeolite material;
- (b) contacting said initial zeolite material with a surfactant;
- (c) contacting said initial zeolite material with a basic medium, wherein said initial zeolite material is only contacted with said basic medium while said initial zeolite material is also contacted with said surfactant, wherein said contacting of steps (b) and (c) are carried out at an elevated temperature and for a time sufficient to increase the mesoporosity of said initial zeolite material;
- and
- (d) recovering a mesoporous zeolite material from said reaction mixture, wherein said mesoporous zeolite has an increased mesopore volume relative to said initial zeolite.
2 more elements
Dependencies are inferred from the claim text.