Process for recycle beneficiation of titaniferous ores

Details Process for recycle beneficiation of titaniferous ores Process for recycle beneficiation of titaniferous ores

1976-05-21

1978-04-18

Stern, Edward

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ivb metal

423148, 423149, 423610, C01G 2304, C01G 4910

Patent

active

040851893

ABSTRACT:
An improved process for beneficiating titaniferous ore to produce essentially iron-free titanium dioxide wherein a fluidized mixture of ore and a recycled iron-containing partially chlorinated product fraction is contacted with chlorine in a reactor maintained under reducing conditions, at temperatures of 700.degree. to 1150.degree. C. to convert iron oxide in the ore to iron chloride vapor which is removed from the reaction mixture. A quantity of the reaction bed which is partially chlorinated is removed from the reactor, cooled and separated into an essentially pure titanium dioxide fraction and a partially chlorinated iron-containing fraction. The iron-containing fraction is mixed with fresh ore and recycled to the reactor for further processing. The titanium dioxide product is useful as a starting material for the preparation of titanium dioxide pigment and is useful as a coating for a welding rod.

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Chemical Engineering Progress, vol. 55, No. 10, Oct. 1959, pp. 80-88.

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