FIELD: metallurgy.
SUBSTANCE: method involves distillation of the oil fraction in an inert gas atmosphere, milling and reducing roasting of the mineral residue by petcoke. Then milling and sulphatisation of titanium cinder are performed with oleum and leaching of titanium-containing compounds with water.
EFFECT: increased chemical reactivity of the concentrate, elevated levels of anosovite phase in the concentrate, increasing increase cost-effectiveness activity of the process through utilisation of the oil fraction and absence of additional consumption of a reducing agent during roasting, reducing of environmental hazard due to decrease in temperature of recovery roasting and sulphatisation.
4 cl, 2 tbl, 1 ex
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