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1.发明公开Process for the reduction of fluorides of silicon, titanium, zirconium or uranium 失效Verfahren zur Reduktion der Fluoride von Silizium，Titan，Zirkonium und Uran。
公开(公告)号：EP0212711A2
公开(公告)日：1987-03-04
申请号：EP86201275.4
申请日：1986-07-21
申请人： ENICHEM S.p.A.
CPC分类号： C01B33/033 , C22B34/1245 , C22B34/1259 , C22B34/1272 , C22B34/14 , C22B60/0213 , C22B60/023 , Y02P10/212
摘要： A process is disclosed for producing silicon, titanium, zirconium or uranium by reduction of a fluoro compound with sodium followed by leaching with an aqueous alkaline earth metal chloride and recovery of the sodium metal through electrolytic reduction.
摘要翻译： 公开了通过用钠还原氟化合物然后用碱土金属氯化钠浸出并通过电解还原回收钠金属来生产硅，钛，锆或铀的方法。
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公开(公告)号：EP3234206A4
公开(公告)日：2017-12-27
申请号：EP15868711
申请日：2015-12-17
发明人： RORKE GARY VERNON
CPC分类号： C22B60/023 , C22B11/04 , C22B15/0069 , C22B15/0071 , Y02P10/236
摘要： A method for recovering one or more of copper, uranium and a precious metal from an ore material, including: (a) forming a heap of the ore material; (b) during active heap irrigation, contacting the heap of the ore material with an iron containing acidic leach liquor having a high chloride content in the presence of an oxygen containing gas, and producing a pregnant leach solution; and (c) recovering one or more of copper, uranium and a precious metal from the pregnant leach solution.
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3.发明公开
公开(公告)号：EP0212711A3
公开(公告)日：1989-02-22
申请号：EP86201275.4
申请日：1986-07-21
申请人： ENICHEM S.p.A.
CPC分类号： C01B33/033 , C22B34/1245 , C22B34/1259 , C22B34/1272 , C22B34/14 , C22B60/0213 , C22B60/023 , Y02P10/212
摘要： A process is disclosed for producing silicon, titanium, zirconium or uranium by reduction of a fluoro compound with sodium followed by leaching with an aqueous alkaline earth metal chloride and recovery of the sodium metal through electrolytic reduction.
摘要翻译： 公开了通过用钠还原氟化合物然后用碱土金属氯化钠浸出并通过电解还原回收钠金属来生产硅，钛，锆或铀的方法。
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公开(公告)号：EP4409047A1
公开(公告)日：2024-08-07
申请号：EP22873996.7
申请日：2022-09-30
CPC分类号： C22B3/10 , C25B1/26 , C25B15/081 , C25B15/087 , C22B3/045 , C22B3/26 , C22B15/0069 , C22B15/0089 , C22B60/023
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公开(公告)号：EP2808409A1
公开(公告)日：2014-12-03
申请号：EP14156885.7
申请日：2014-02-26
发明人： Noe, Ronald O.
IPC分类号： C22B60/02
CPC分类号： C01G43/01 , C01G43/00 , C22B60/023 , C23G1/02
摘要： 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.
摘要翻译： 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。
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