• Title/Summary/Keyword: 무 하프늄 지르코늄

Search Result 1, Processing Time 0.013 seconds

Overview of Zirconium Production and Recycling Technology (지르코늄의 제조(製造)와 재활용기술(再活用技術))

  • Park, Kyoung-Tae;Kim, Seung-Hyun;Hong, Soon-Ik;Choi, Mi-Sun;Cho, Nam-Chan;Yoo, Hwan-Jun;Lee, Jong-Hyeon
    • Resources Recycling
    • /
    • v.21 no.5
    • /
    • pp.18-30
    • /
    • 2012
  • Zirconium is one of the most important material used as cladding of fuel rods in nuclear reactors because of its high dimensional stability, good corrosion resistance and especially low neutron-absorbing cross section. However, Hf free nuclear grade Zr sponge is commercially produced by only three countries including USA, France and Russia. So, Zr has been thoroughly managed as a national strategic material in Korea. Most of the zirconium is used for Korean nuclear industry as nuclear fuel cladding materials manufactured from Hf free Zr alloy raw material. Also, there are some other applications such as alloying element and detonator. In this review, zirconium production and recycling technologies have been reviewed and current industrial status was also analyzed. And recent achievements in innovative reduction technologies such as electrolytic reduction process and molten oxide electrolysis were also introduced.