FIELD: metallurgy.
SUBSTANCE: procedure consists in fluoridation of raw material by sintering with fluoride agent. Upon fluoridation product is crumbled, dissolved in distilled water and filtered. Produced solution is settled with ammonia at pH 8÷9, sediment is mixed with chloride of ammonia and baked at 220-270°C during 5 hours.
EFFECT: production of titanium oxide of rutile form and iron oxide.
3 ex
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