会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 67. 发明公开
    • Uranium Recovery From UF6 Cylinders
    • Uranrückgewinnungaus UF6-Zylindern
    • EP2808409A1
    • 2014-12-03
    • EP14156885.7
    • 2014-02-26
    • Transport Logistics International, Inc.
    • Noe, Ronald O.
    • C22B60/02
    • C01G43/01C01G43/00C22B60/023C23G1/02
    • A process for recovering residual uranium from emptied uranium hexafluoride shipping cylinder during cleaning, including rinsing a uranium hexafluoride shipping cylinder with hydrofluoric acid to dissolve a heel of uranium hexafluoride therein to form a mixture of sediment, precipitates and a uranium solution; separating the uranium solution from the sediment and precipitates; mixing sodium hydroxide with the uranium solution to precipitate sodium diuranate; separating the solid sodium diuranate from the sodium fluoride solution formed; re-dissolving the sodium diuranate in sodium carbonate solution to form uranyl carbonate complex solution; and adjusting the pH of uranyl carbonate complex solution further to precipitate uranyl peroxide with the addition of hydrogen peroxide. Sodium fluoride solution produced is further treated to remove fluoride by percolating it through a calcite limestone bed to form calcium fluoride solid.
    • 包括在清洗过程中从排空的六氟化铀运输缸中回收残留的铀的过程,包括用氢氟酸冲洗六氟化铀运输筒以溶解其中的六氟化铀,以形成沉淀物,沉淀物和铀溶液的混合物; 将铀溶液与沉淀物和沉淀物分离; 将氢氧化钠与铀溶液混合,沉淀出氢氧化钠; 从形成的氟化钠溶液中分离出固体二异氰酸钠; 将二氢阿拉伯钠溶解在碳酸钠溶液中,形成碳酸铀酰复合溶液; 并且通过加入过氧化氢进一步调节碳酸铀酸酯配位体溶液的pH以进一步沉淀二氧化铀过氧化物。 进一步处理生产的氟化钠溶液以通过将其渗透通过方解石石灰石床除去氟化物以形成氟化钙固体。