Abstract
The influence of thermal activation, decationation, and dealumination on adsorption properties of rock from Transcarpathian deposit (Lypcha village, Ukraine) containing mordenite and clinoptilolite at the ratio 1:1 was studied in this research. Taking into account the need of preliminary thermal activation of adsorbent, the research of thermal stability of zeolite component of rock was conducted. Parameters of microporous structure of decationated and dealuminated samples were calculated. Obtained results show that decationation of mordenite–clinoptilolite rock leads to insignificant increase and dealumination leads to significant decrease of adsorption capacity for water. Maximal adsorption ability for methanol is about 50% dealumination degree of the sample.
Highlights
Today the role of synthetic zeolites applied as adsorbents and catalytic agents can hardly be overestimated
After heat treatment at 400C destruction of mordenite is less than 10%, whereas clinoptilolite is destroyed for more than 50%
Even during calcination at 800C mordenite undergoes less than 50% degradation
Summary
Today the role of synthetic zeolites applied as adsorbents and catalytic agents can hardly be overestimated. Natural zeolites often do not rank in technological properties below the synthetic analogs. The deposits of zeolites have the broad geography and possess its large volumes, the scope of its application is limited mainly with the fields of agriculture and construction.
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