engleski

The presence of citric acid in synthesis of some zeolites

Many transition metal cations (e.g., Cu, Fe, Co, Ni, etc.) are widely used as catalysts for different reactions. Often they are placed within zeolites (as inert carrier) and many preparation pathways have been tested in order to obtain stable catalyst and to prevent metal leaching from the catalyst. The fixation of the metal cations, during hydrothermal synthesis of zeolite catalyst may be a basis for solution of both problems. Use of the transition metal and complexation agents to introduce them to the zeolite during synthesis is one of the preparation methods. Here, we have used citric acid as complexation agent for Zn ions in preparation of some zeolite types.

zeolite synthesis ; citric acid ; Zn ions ; sodalite ; analcime

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