Synthesis of rutile from titaniferous slags

Details Synthesis of rutile from titaniferous slags Synthesis of rutile from titaniferous slags

1975-12-02

1976-12-07

Stern, Edward

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ivb metal

423305, 423610, C01G 2304

Patent

active

039963322

ABSTRACT:
Synthetic rutile is produced from a titaniferous slag derived from ilmenite. Ilmenite concentrates are reduction smelted to remove iron as a high grade pig iron byproduct and to enrich the remaining slag phase in titanium. Oxidation of the slag and aging at high temperature in the presence of a titanium pyrophosphate flux converts the titanium bearing phases to discrete rutile crystals and a phosphate glass phase containing most of the associated impurities. Rutile is separated from the glassy matrix by attrition scrubbing aged, ground slag in dilute mineral acid solutions.

REFERENCES:
patent: 3739061 (1973-06-01), Stickney
patent: 3914381 (1975-10-01), Sugahara et al.

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