Synthesis of Zeolites, Merlinoite Minerals of Damavand’s Natural Clinoptiloite Zeolites Mineral in Hydrothermal Conditions, under the Influence of Alkaline Mediums

In the present research synthesis of zeolites, merlinoite minerals of natural clinoptiloite mineral in the presence of alkalinemediums, was investigated. the analyzed variants are a result of a concentration of na+ and k+ ions, temperature and time. phasetransition of clinoptiloite was conducted in the presence of an 8 molar potash solution (koh) and a 4 molar soda solution (naoh).results indicated that merlinoite phase occurs at a temperature of 200 degrees centigrade and the presence of highly concentratedions of na+. with the passage of reaction time, the concentration of the synthesized merlinoite is increased accordingly. xrd studiessuggest orthorhombic synchrony with the dimensions of c = 9.45 a, a = 14/12 a, d = 2/19 a, n = 1/494 a for merlinoite.