This invention relates to a process of treating a zirconium containing product such as zircon. The process comprises providing an alkali fusion decomposed zircon product (AFDZ) formed from reading zircon with a source of alkali metal at elevated temperatures, and treating the AFDZ to form a solid containing hydrated zirconium oxide and/or hydrated zirconium basic carbonate (hereinafter referred to as the hydrated zirconium product). The process further comprises treating the solid hydrated zirconium product to obtain <i>in situ</i> formation of basic zirconium sulphate as a solid thereon. The invention also relates to such a process for producing zircon derived material suitable for pigments and to such a process to produce opacifier material. The invention also relates to products of such processes.
申请公布号
WO0075075(A1)
申请公布日期
2000.12.14
申请号
WO2000ZA00104
申请日期
2000.06.06
申请人
UNIVERSITY OF PRETORIA;COETZEE, GERT, HENDRIK, JACOBUS LM