Material with microporous crystalline walls defining a narrow size distribution of mesopores, and process for preparing same
AssigneeIntevep, S.A.
InventorsJuan Lujano, Yilda Romero, Jose Carrazza
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Abstract
The invention relates to a synthetic crystalline material and its use in catalytic conversion of organic compounds and as a sorbent. The crystalline material contains one or more microporous crystalline phases, having a micropore volume greater than or equal to about 0.15 cc/g distributed in channels between about 3 to about 15 .ANG. in average diameter which is rendered accessible by a mesopore volume of greater than or equal to about 0.1 cc/g distributed in channels between about 20 to about 100 .ANG. in average diameter. A process is also provided for preparing the crystalline material of the present invention.
Claims11
A process for preparing a crystalline molecular sieve material selected from the group consisting of zeolite, metalosilicate, aluminophosphate, metaloaluminophosphate, silicoaluminophosphate, metalosilicoaluminophosphate and mixtures thereof, comprising the steps of:
- providing a suspension of nuclei of a crystalline molecular sieve material in an aqueous media;
- mixing the suspension with a water soluble organic compound to provide a mixture of the nuclei and micelles of the organic compound in solution;
- inducing the nuclei around the micelles of the organic compound so as to produce a solid material having the organic compound dispersed therein;
- extracting the organic compound from the solid material to provide a crystalline molecular sieve material having a micropore volume greater than or equal to about 0.15 cc/g distributed in channels about 3 to about 15 .ANG. in average diameter, and having a mesopore volume of at least about 0.1 cc/g distributed in channels about 20 .ANG. to about 100 .ANG. in average diameter.
Dependencies are inferred from the claim text.