Studies on Thermal Behaviour of Ca-Clinoptilolite Crystals from Marathwada, India

Abstract

The freshly extracted zeolite crystals collected from the Marathwada region of India were characterized by X-ray diffraction (XRD), infrared spectroscopy (IR), thermal analyses (TGA/DTA) and wet chemical analysis method as the Ca-clinoptilolite. The powder of the crystals was treated at various temperatures viz., 50, 100, 150,200,250 and 300ºC. At each stage
the structural changes were studied by using mid-infrared spectroscopy.
Thermogravimetric and differential thermal analysis were used to study
the water loss at different stages and the corresponding structural changes.
It has been inferred that the structural changes are temperature dependent
and can be well studied with the help of infrared spectroscopy.