Beneficiation of zircon

Details Beneficiation of zircon Beneficiation of zircon

2006-06-20

2006-06-20

Bos, Steven (Department: 1754)

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ivb metal

C423S082000, C423S084000, C423S085000, C423S419100, C423S544000

Reexamination Certificate

active

07063824

ABSTRACT:
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 in situ 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.

REFERENCES:
patent: 1376161 (1921-04-01), Pugh
patent: 3672825 (1972-06-01), Gambale, et al.
patent: 4746497 (1988-05-01), Jenkins et al.
patent: WO 86/04614 (1986-08-01), None
patent: WO 88/03128 (1988-05-01), None
Nielson, Ralph, “Zirconium and Zirconium Compounds”,Ullmann's Encyclopedia of Industrial Chemistry, vol. A, No. 28, pp. 543-567, 1996, no month.

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