99.
    发明专利
    未知

    公开(公告)号:DE1592244C3

    公开(公告)日:1975-08-14

    申请号:DE1592244

    申请日:1967-04-28

    Abstract: 1,186,522. Extracting iron. COMMONWEALTH SCIENTIFIC & INDUSTRIAL RESEARCH ORGANIZATION and WESTERN TITANIUM N. L. April 28, 1967 [April 29, 1966], No.19648/67. Heading C7D. [Also in Division C1 Granular ilmerite, iron-containing rutile and materials formed from these by weathering are heated with a magnesium compound to coat the granules (see Division C1) and prevent agglomeration of the granules during subsequent reduction at 1130-1320‹C. in a rotory kiln using 1 part by weight of carbon per 1-2 parts of granules. Sodium chloride or sodium sulphate can be added during the reduction to facilitate the separation of the metallic iron and anosovite phases formed by the reduction.

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