公开(公告)号：US09315915B2

公开(公告)日：2016-04-19

申请号：US13001870

申请日：2009-06-29

申请人： Reiko Fujita ,  Koji Mizuguchi ,  Hitoshi Nakamura ,  Kouki Fuse ,  Mitsuru Kawamoto ,  Masaru Ito

发明人： Reiko Fujita ,  Koji Mizuguchi ,  Hitoshi Nakamura ,  Kouki Fuse ,  Mitsuru Kawamoto ,  Masaru Ito

IPC分类号： C25C3/00 ,  C22B5/00 ,  C25C3/26 ,  C22B34/14 ,  C22B34/12

CPC分类号： C25C3/26 ,  C22B34/1222 ,  C22B34/129 ,  C22B34/14 ,  Y02P10/23

摘要： An object of the present invention is to provide a method of producing metal zirconium, the method having a fewer steps and a smaller amount of secondary wastes generated, wherein the metal zirconium is obtained from a zirconium compound containing hafnium. A method of producing metal zirconium according to the present invention includes: a separation step of separating a hafnium oxychloride from a first substance containing a zirconium oxychloride and a hafnium oxychloride to obtain a second substance having a higher content of the zirconium oxychloride; a calcination step of calcining the second substance to obtain a third substance containing at least any of a zirconium oxychloride and a zirconium oxide; and a direct reduction step of holding the third substance in a molten salt with the third substance brought into contact with a cathode and applying a voltage between the cathode and an anode to directly reduce the third substance to obtain metal zirconium.

摘要翻译： 本发明的目的是提供一种生产金属锆的方法，该方法具有较少的步骤和较少量的二次废弃物，其中金属锆由含有铪的锆化合物获得。 根据本发明的金属锆的制造方法包括：从含有氯氧化锆和氯化铪的第一物质中分离氯氧化铪的分离工序，得到氯氧化锆含量较高的第二物质; 煅烧第二物质以获得含有三氯氧化锆和氧化锆中的至少一种的第三物质的煅烧步骤; 以及将第三物质保持在与第一物质接触的第三物质与阴极接触并在阴极和阳极之间施加电压以直接还原第三物质以获得金属锆的直接还原步骤。

公开(公告)号：US20110108434A1

公开(公告)日：2011-05-12

申请号：US13001870

申请日：2009-06-29

申请人： Reiko Fujita ,  Koji Mizuguchi ,  Hitoshi Nakamura ,  Kouki Fuse ,  Mitsuru Kawamoto ,  Masaru Ito

发明人： Reiko Fujita ,  Koji Mizuguchi ,  Hitoshi Nakamura ,  Kouki Fuse ,  Mitsuru Kawamoto ,  Masaru Ito

IPC分类号： C25C3/26

CPC分类号： C25C3/26 ,  C22B34/1222 ,  C22B34/129 ,  C22B34/14 ,  Y02P10/23

摘要： An object of the present invention is to provide a method of producing metal zirconium, the method having a fewer steps and a smaller amount of secondary wastes generated, wherein the metal zirconium is obtained from a zirconium compound containing hafnium. A method of producing metal zirconium according to the present invention includes: a separation step of separating a hafnium oxychloride from a first substance containing a zirconium oxychloride and a hafnium oxychloride to obtain a second substance having a higher content of the zirconium oxychloride; a calcination step of calcining the second substance to obtain a third substance containing at least any of a zirconium oxychloride and a zirconium oxide; and a direct reduction step of holding the third substance in a molten salt with the third substance brought into contact with a cathode and applying a voltage between the cathode and an anode to directly reduce the third substance to obtain metal zirconium.

摘要翻译： 本发明的目的是提供一种生产金属锆的方法，该方法具有较少的步骤和较少量的二次废弃物，其中金属锆由含有铪的锆化合物获得。 根据本发明的金属锆的制造方法包括：从含有氯氧化锆和氯化铪的第一物质中分离氯氧化铪的分离工序，得到氯氧化锆含量较高的第二物质; 煅烧第二物质以获得含有三氯氧化锆和氧化锆中的至少一种的第三物质的煅烧步骤; 以及将第三物质保持在与第一物质接触的第三物质与阴极接触并在阴极和阳极之间施加电压以直接还原第三物质以获得金属锆的直接还原步骤。