Method for producing refractory metals
    1.
    发明授权
    Method for producing refractory metals 失效
    生产耐火金属的方法

    公开(公告)号:US3736132A

    公开(公告)日:1973-05-29

    申请号:US3736132D

    申请日:1971-12-17

    申请人: STEEL CORP

    CPC分类号: C22B34/10 C22B34/1272

    摘要: A PROCESS FOR THE MANUFACTURE OF TITANIUM FROM TITANIUM TETRACHLORIDE BY REDUCTION WITH SODIUM, IN WHICH A PARTIALLY REDUCED MATERIAL PRINCIPALLY CORRESPONDING TO NA2TICL4 IS CONTINUOUSLY FORMED, IS IMPROVED BY CONTINUOUSLY MIXING THE PARTIALLY REDUCED MATERIAL WITH SODIUM AT A TEMPERATURE BELOW ABOUT 200*C. SO AS TO FORM AN INTERMEDIATE MATERIAL CORRESPONDING TO AT LEAST 15% BY WEIGHT NA3TICL4, COMPACTING THE INTERMEDIATE MATERIAL AT A TEMPERATURE OF LESS THAN 100*C. TO FORM A CONTINUOUS ROD OF THE COMPOSITE MATERIAL WITHOUT SUBSTANTIAL FURTHER REDUCTION OF THE TITANIUM CHLORIDE CONTENT THEREOF AND CONTINUOUSLY HEATING THE ROD FORMED AT TEMTERATURES ABOUT 800*C. TO COMPLETE REDUCTION OF TITANIUM CHLORIDE COMPONENT THEREOF, TO EFFECT SINTERING OF THE RESULTING TITANIUM METAL, AND TTO SIMULTANEOUSLY MELT THE SALT BY-PRODUCT AND THEREBY FACILITATE SEPARATION AND REMOVAL OF THE SALT FROM THE ROD-SHAPED, SINTERED TITANIUM METAL PRODUCT.