HIGH-SILICA ZEOLITE AND METHOD OF PRODUCTION OF SUCH ZEOLITE Russian patent published in 2007 - IPC C01B39/48 

FIELD: production and use of high-silica alumo-silicate zeolite.

SUBSTANCE: proposed high-silica zeolite is used as absorbents and catalysts. Proposed zeolite is produced by hydro-thermal crystallization of reaction mix at temperature of 150-180°C continued for 2-7 days; reaction mix contains source of silicon oxide, aluminum oxide, alkaline metal cations, zeolite "seed", organic structure-forming additive and water; it has the following chemical composition at molar ratio: SiO₂/Al₂O₃ = 20-100; Na⁺/SiO₂ = 0.1-1.0; OH^-/SiO₂ = 0.1-1.0; H₂O/SiO₂ = 10-100 and mass ratio R/SiO₂ = 0.03-1.0. Used as organic structure-forming additive (R) is "X-oil" fraction -waste of caprolactam production process. Synthetic alumo-silicate zeolites which have structure of type MF1 zeolites and are prepared according to the proposed method with the use of organic structure-forming additive - "X-oil" fraction may be used for production on their base of highly effective catalysts for various reactions of conversion of hydrocarbons.

EFFECT: enhanced efficiency.

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