2022-Sustainable Industrial Processing Summit
SIPS2022 Volume 2 Dmitriev Intl.Symp. Metals & Alloys Processing

Editors:F. Kongoli, J. De Castro, M, Gomez-Marroquin, Y. Gordon, M. Naimanbayev, V. Tsepelev, S. Prakash
Publisher:Flogen Star OUTREACH
Publication Year:2022
Pages:148 pages
ISBN:978-1-989820-36-0(CD)
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
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    POSSIBILITY OF SEPARATION OF CHROME FROM TITANIUM IN ILMENITE CONCENTRATE

    Bagdaulet Kenzhaliyev1; Omirserik Baigenzhenov2;
    1KAZAKH-BRITISH TECHNICAL UNIVERSITY, Almaty, Kazakhstan; 2SATBAYEV UNIVERSITY, Almaty, Kazakhstan;
    Type of Paper: Regular
    Id Paper: 291
    Topic: 3

    Abstract:

    ABSTRACT
    Processing of ilmenite concentrates into titanium-containing slag, titanium tetrachloride,
    and titanium sponge is complicated by the high content of chromium in it. Therefore, the methods
    based on preliminary carbon reduction of ilmenite concentrate at 900-1200 °С and following
    reduction of reduced iron and chrome by electromagnetic separation are widely used in industry.
    Then the non-magnetic titanium-chromium fraction is for hydrochemical treatment to purify it
    from chromium and other impurities.
    It has been determined that the selective solid-phase reduction of ilmenite chromiumcontaining
    concentrate should be performed at 1250 °С and 2 hours’ dwell period. It was found
    that the addition of 8% sodium chloride to the charge accelerates the reduction process for iron
    from ilmenite. At the same time, the recovery of reduced iron into the magnetic fraction is
    76.1%, recovery of chromium is 55.8%, recovery of titanium is 15.3%.
    The titanium-chromium fraction was sintered with the calculated amount of soda at 850
    °С for 2 hours to separate chromium from titanium compounds and leached with hot water (S:L
    = 1:4) at the temperature of 95-100 °С and stirring for 120 minutes. At the same time, the chromium
    recovery into the solution was 83.6%. Titanium-beneficiated concentrate contains 6.2%
    iron, 36.2% titanium and 0.42% chromium.

    Keywords:

    Ferrous; Magnetic; Metallurgy; Recovery; ilmenite concentrate, high chromium content, reductive roasting, magnetic separation, soda, sodium chloride, leaching

    References:

    Keywords: ilmenite concentrate, high chromium content, reductive roasting, magnetic separation,
    soda, sodium chloride, leaching

    Cite this article as:

    Kenzhaliyev B and Baigenzhenov O. (2022). POSSIBILITY OF SEPARATION OF CHROME FROM TITANIUM IN ILMENITE CONCENTRATE. In F. Kongoli, J. De Castro, M, Gomez-Marroquin, Y. Gordon, M. Naimanbayev, V. Tsepelev, S. Prakash (Eds.), Sustainable Industrial Processing Summit SIPS2022 Volume 2 Dmitriev Intl.Symp. Metals & Alloys Processing (pp. 89-90). Montreal, Canada: FLOGEN Star Outreach