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    Process for the recovery of vanadium from raw titanium chloride
    2.
    发明授权
    Process for the recovery of vanadium from raw titanium chloride 失效
    从氯化钛原料中回收钒的方法

    公开(公告)号：US3625645A

    公开(公告)日：1971-12-07

    申请号：US3625645D

    申请日：1969-05-16

    申请人： MONTEDISON SPA

    发明人： FERRERO FRANCESCO ,  SIRONI GIUSEPPE ,  GARBERI ANGELO

    IPC分类号： C01G31/00 ,  C01G31/04 ,  C22B59/00

    CPC分类号： C01G31/04

    摘要： A PROCESS IS DISCLOSED FRO RECOVERING VANADIUM FROM SOLID TICL4-FREE RESIDUES OBTAINED IN THE PURIFICATION OF RAW TICL4 WITH H2S, WHEREIN THE SOLID RESIDUES ARE TREATED WITH OXYGEN OR AN OXYGEN-CONTAINING GS AT TEMPERATURES BETWEEN 150* AND 200*C., THEREBY OBTAINING A VOCL3CONTAINING GAS FROM WHICH THE VOCL3 IS SEPARATED IN A PRACTICALLY PURE STATE BY RECTIFICATION. THE SOLID TICL4-FREE RESIDUES ARE OBTAINED FROM THE PURIFICATION SLUDGES OF THE LIQUID RAW TICL4 BY DRYING SAME AT TEMPERATURE OF 150*180*C., IN A STREAM OF INERT GAS, PREFERABLY NITROGEN.