C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 39/48 (2006.01) C01B 39/04 (2006.01) C07D 233/61 (2006.01)
Patent
CA 2757854
Methods for preparing molecular sieves and molecular sieves obtained thereby are described. The method including preparing a reaction mixture, comprising a structure directing agent, at least one source of at least one oxide of a tetravalent element, optionally, one or more sources of one or more oxides selected from the group consisting of oxides of trivalent elements, pentavalent elements, and mixtures thereof, optionally, at least one source of an element selected from Groups 1 and 2 of the Periodic Table; and optionally, hydroxide ions or fluoride ions, and maintaining the reaction mixture under conditions sufficient to form crystals of the molecular sieve. In the method, various imidazolium cations are used as the structure directing element.
L'invention concerne des procédés permettant de préparer des tamis moléculaires et des tamis moléculaires ainsi obtenus. Le procédé comprend la préparation d'un mélange de réaction, comprenant un agent de direction de structure, au moins une source d'au moins un oxyde d'un élément tétravalent, facultativement une ou plusieurs sources d'un ou plusieurs oxydes choisis dans le groupe consistant en les oxydes d'éléments trivalents, d'éléments pentavalents, et leurs mélanges, facultativement au moins une source d'un élément choisi parmi les groupes 1 et 2 du tableau périodique ; et facultativement, des ions hydroxyde ou des ions fluorure, et le maintien du mélange de réaction dans des conditions suffisantes pour former des cristaux du tamis moléculaire. Dans le procédé, divers cations imidazolium sont utilisés comme élément de direction de structure.
Archer Raymond
Davis Mark E.
California Institute Of Technology
Sim & Mcburney
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