Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group ivb metal
Patent
1981-11-23
1982-11-30
Carter, Herbert T.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group ivb metal
423 82, 423 69, 423326, 423 86, C01G 2500
Patent
active
043615422
ABSTRACT:
Zircon, ZrSiO.sub.4, is retrieved from zircon sand comprised of ZrSiO.sub.4 crystals and contaminants including SiO.sub.2 and iron by comminuting an aqueous slurry of the sand with iron means exposing the contaminants, admixing the resulting comminuted sand slurry with concentrated nitric and hydrochloric acids producing ferric chloride in solution thereby removing its iron component, admixing the resulting suspension with a flocculating agent agglomerating the suspended particles, admixing the resulting agglomerated mass with concentrated hydrofluoric acid to dissolve its SiO.sub.2 component, recovering the resulting ZrSiO.sub.4, washing it with water and drying.
REFERENCES:
patent: 1796170 (1931-03-01), Termilliger
patent: 3109704 (1963-11-01), Olley
patent: 3849532 (1974-11-01), Deneke et al.
Binkowski Jane M.
Carter Herbert T.
Cohen Joseph T.
Davis Jr. James C.
General Electric Company
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