DBPapers
DOI: 10.5593/sgem2011/s04.119

STUDY OF ILMENITE CONCENTRATES THERMAL REDACTION PROCESSES KINETICS

AUTHOR/S: M. NAIMANBAYEV
Monday 1 August 2011 by Libadmin2011

11th International Multidisciplinary Scientific GeoConference SGEM2011, www.sgem.org, SGEM2011 Conference Proceedings/ ISSN 1314-2704, June 20-25, 2011, Vol. 1, 1189-1194 pp

ABSTRACT

Researches of ilmenite reduction kinetics defining intensity of process course are
carried out for many years. Main characteristic is concentrate reducibility degree,
characterizing process speed in concrete conditions.

Ilmenite reduction process is very complicated, and its speed depends on many factors -
oxides nature, temperature and degrees of concentrate grinding.

Iron complicates ilmenite concentrate use in its chlorination process for obtaining
titanium tetrachloride - an initial product for obtaining of spongy metal titanium. So
technology of solid-phase carbothermic reduction and liquid-phase reductive smelting
of titanium-containing concentrates in electric furnaces for preliminary elimination of
iron into separate phase is widespread in titanium subindustry.

It was important to carry out kinetic researches of ilmenite thermal reduction because it
is necessary to eliminate iron by its oxides carbothermic reduction into metal with
subsequent removal of the last one by electrosmelting for the purpose of obtaining highquality
titanium product.

Keywords: ilmenite concentrate, reduction kinetics, titanium tetrachloride, iron, slag

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