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 Number of application: 4530-90  Number of patent: 282132

Original title: Způsob přípravy zeolitů 

Title in English: Preparation of zeolites by hydrothermal decomposition of ash

First author: David Koloušek, MSc, PhD 

Short abstract:

In preparaton of zeolites by hydrothermal decomposition of ash or fly ash modified in aq. solution of alkali metal hydroxides at 80-160°C for 1-168 h.,the power plant ash or fly ash with SiO2:Al2O3 molar ratio of 2.2-4.8 is used. The ash or fly ash may be treated by magnetic sepn. or chem. leaching with HCl prior to the modification step. The obtained zeolites with high sorption capacity are suitable for use in chem. industry.