Industrial & Engineering Chemistry Research, Vol.51, No.42, 13552-13561, 2012
Preparation of Some Useful Compounds of Zirconium from Bangladeshi Zircon
A number of useful zirconium compounds, such as hydrated zirconyl chloride, hydrated zirconium sulfate, zirconium dioxide, gamma-zirconium ammonium phosphate, gamma-zirconium phosphate, gamma-zirconium phosphate phosphite, and gamma-zirconium phosphate hypophosphite have been prepared from Bangladeshi zircon following the NaOH-fusion, acid (HCl and H2SO4)-leaching, precipitation, calcination/pyrolysis, condensation polymerization, ion exchange and the tap tactic reaction methods. The products have been characterized by chemical and thermogravimetric analyses in all cases, together with the XRD patterns and sodium exchange capacities in some cases.