MICROSPHERICAL ZEOLITE-CONTAINING CATALYST FOR CONVERSION OF ALIPHATIC HYDROCARBONS C- C Russian patent published in 1994 - IPC

Abstract RU 2019290 C1

FIELD: chemical technology. SUBSTANCE: catalyst has, wt.-%: high-siliceous zeolite of pentasil type in hydrogen form at ratio Si/Al = 12-30 25-35; binder - zirconium oxide (ZrO₂) 5-10; promoter - zinc oxide (ZnO) 1-2; zirconium phosphate (Zr₃(PO₄)₄) 25-30, and aluminium oxide (Al₂O₃) - the rest. Content of zirconium compounds in catalyst does not exceed 35 wt. -% . Condensate and aqueous "tablet" of aluminium hydroxide are loaded in apparatus with a mixer and heating, stirred and aqueous solutions of zirconyl nitrate and zinc nitrate are added, stirred for 1 h, and zeolite ЦВМ-III in ammonium form is added. After stirring aqueous solution of ortho-phosphoric acid is added gradually, and temperature is increased up to 90-60 C, and suspension is kept for 3 h following by spraying drying at 190-220 C. Granules are roasted in the muffle furnace at 550 C for 5 h. EFFECT: enhanced properties of catalyst prepared. 4 tbl

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RU 2 019 290 C1

Authors

Вochaver К.Z.

Оkruzhnov А.М.

Grigorenko N.М.

Rostanin N.N.

Rostanina Е.D.

Dates

1994-09-15—Published

1992-03-31—Filed