Method of preparing a synthetic rutile from a titaniferous slag

Details Method of preparing a synthetic rutile from a titaniferous slag Method of preparing a synthetic rutile from a titaniferous slag

1987-12-09

1990-06-12

Stoll, Robert L.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ivb metal

423 74, 423 81, 423 82, 423 83, 423 84, 423 85, 423609, 423610, 423615, C01G 2304

Patent

active

049331531

ABSTRACT:
A synthetic rutile is prepared from a titaniferous slag, typically containing at least about 1.0 weight percent magnesium oxide and at least some portion of its titanium values as Ti.sub.2 O.sub.3, by a method comprising contacting the slag with chlorine gas at a temperature between about 400.degree. C.-800.degree. C., such that the magnesium oxide and chlorine gas react to form magnesium chloride, and then removing the magnesium chloride from the slag, typically by washing the slag with water. In one embodiment, the synthetic rutile can be further upgraded by subjecting it to either a caustic or acid leaching treatment.

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Kirk-Othmer's Encyclopedia of Chemical Technology, 3rd Ed., vol. 23, pp. 143-148.

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