Process for the utilization of vanadium bound in chromium ore as vanadium(V) oxide by electrolysis
    2.
    发明申请
    Process for the utilization of vanadium bound in chromium ore as vanadium(V) oxide by electrolysis 审中-公开
    通过电解利用铬矿中钒结合钒(V)氧化钒的方法

    公开(公告)号:US20040045834A1

    公开(公告)日:2004-03-11

    申请号:US10411667

    申请日:2003-04-11

    IPC分类号: C25B001/00

    摘要: Process for recovering the vanadium present in the chromium ore chromite, as vanadium pentoxide, as a by-product from the vanadium-containing sodium chromate solution produced in the process of preparing sodium chromate and sodium dichromate from said ore, by precipitation of calcium vanadate from the sodium chromate solution, treatment of the precipitate with water and sodium carbonate, sodium bicarbonate, carbon dioxide or sodium carbonate and carbon dioxide, to precipitate calcium carbonate and electrolysis of the solution remaining after separation of the calcium carbonate precipitate, to produce vanadium pentoxide.

    摘要翻译: 回收铬铬铁矿中存在的钒作为五氧化二钒作为副产物从在所述矿石中制备铬酸铬和重铬酸钠过程中产生的含钒铬酸钠溶液中回收钒的方法, 铬酸钠溶液,用水和碳酸钠,碳酸氢钠,二氧化碳或碳酸钠和二氧化碳处理沉淀物,沉淀碳酸钙,电解后分离出碳酸钙沉淀物中残留的溶液,产生五氧化二钒。