The Isomorphism and Catalytic Properties of Silicates with the Zeolite Structure

The properties of a new group of catalysts based on crystalline silicates with the zeolite structure, containing the multicharged Be²⁺, B³⁺, Cr³⁺, Fe³⁺, Mn²⁺, Cu²⁺, Zn²⁺, Mo⁶⁺, Se⁶⁺, etc. cations occluded in the hydrothermal crystallisation process, are described. The state of the multicharged cations in the silicates has been characterised by physical methods (NMR, EPR, and X-ray diffraction). The selectivity and catalytic activity of such silicates in the formation and other reactions of hydrocarbons and hydrocarbon mixtures are examined.
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