FIELD: chemistry.
SUBSTANCE: method of producing NaA or NaX zeolites involves preparation of sodium metasilicate and sodium aluminate solutions, adding an amine-containing compound into the solution, said amine-containing compound being selected from: triethanolamine, polyethylene polyamine or m-phenylenediamine, and preparation of gel by mixing the obtained solutions. The gel is mixed with dimethyl sulphoxide and hydrothermal crystallisation is carried out at temperature 70-100°C. Gels of given composition are prepared in order to produce NaA and NaX zeolites.
EFFECT: obtaining monophase NaA or NaX zeolites with negligible content of impurities.
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Authors
Dates
2012-06-10—Published
2011-02-22—Filed