Abstract
The influence of the preparation conditions on the physicochemical properties of zeolite MWW at varying the type of source of SiO2, the concentration parameters of the reaction mixture, temperature and duration of crystallization. The synthesis conditions providing a high degree of utilization of inorganic sources of raw materials and an MWW zeolite yield of 96% were determined. It was shown that performing the crystallization at 150°C results in that uniform-size crystals of MWW zeolite are formed. The concentrating limits of the reaction mixture were determined, at which a pure-phase MWW zeolite with pore volume of 0.33–0.34 cm3 g–1 and micropore volume of 0.17–0.18 cm3 g–1 can be obtained.
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