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US 2016/0101986 A1Published application
Method for making euo framework type molecular sieves
AssigneeChevron U.S.A. Inc.
InventorDan XIE
Life of this patent
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Abstract
A method for preparing EUO framework type molecular sieve is disclosed using an N,N′-dimethyl-1,4-diazabicyclo[2.2.2]octane dication as a structure directing agent. The EUO framework type molecular sieve, in its as-synthesized form, contains in its intracrystalline pores the N,N′-dimethyl-1,4-diazabicyclo[2.2.2]octane dication.
Claims15
A method for preparing an EUO framework type molecular sieve, comprising:
- (a) preparing a reaction mixture containing:
- (1) at least one source of an oxide of at least one tetravalent element;
- (2) one or more sources of one or more oxides selected from the group consisting of oxides of trivalent elements, pentavalent elements, and mixtures thereof;
- (3) at least one source of an element selected from Groups 1 and 2 of the Periodic Table;
- (4) hydroxide ions;
- (5) an N,N′-dimethyl-1,4-diazabicyclo[2.2.2]octane dication;
- and
- (6) water;
- and
- (b) subjecting the reaction mixture to crystallization conditions sufficient to form crystals of the EUO framework type molecular sieve.
7 more elements
An EUO framework type molecular sieve having a composition, as-synthesized and in its anhydrous state, in terms of mole ratios, as follows:
- TO2/X2Ob
- 10 to 100
- Q/TO2
- 0.01 to 0.10
- M/TO2
- 0.01 to 0.15
- wherein:
- (1) T is selected from the group consisting of tetravalent elements from Groups 4-14 of the Periodic Table, and mixtures thereof;
- (2) X is selected from the group consisting of trivalent and pentavalent elements from Groups 3-13 of the Periodic Table, and mixtures thereof;
- (3) b equals the valence state of X;
- (4) Q is an N,N′-dimethyl-1,4-diazabicyclo[2.2.2]octane dication;
- and
- (5) M is selected from the group consisting of elements from Groups 1 and 2 of the Periodic Table.
10 more elements
Dependencies are inferred from the claim text.