Process for the in situ recovery of chemical values from UF 6 gaseous
diffusion process equipment
    1.
    发明授权
    Process for the in situ recovery of chemical values from UF 6 gaseous diffusion process equipment 失效
    用于从UF 6气体扩散工艺设备原位回收化学值的方法

    公开(公告)号:US5787353A

    公开(公告)日:1998-07-28

    申请号:US622261

    申请日:1996-03-26

    摘要: A process for the recovery of chemical values, particularly uranium, nickel and/or radionuclides from process equipment theretofore employed in a uranium hexafluoride isotope enrichment cascade. Preferably, the process is carried out, in situ, at subatmospheric pressure employing the existing process equipment from which the chemical values are to be recovered. In one aspect, the process includes recovery of uranium values employing a gaseous fluorinating agent at subatmospheric pressure, followed by recovery of nickel values employing a gaseous reactant comprising a mixture of carbon monoxide and a promoter, preferably hydrogen sulfide and at subatmospheric pressure.

    摘要翻译: 在六氟化铀同位素浓缩级联中用于从工艺设备回收化学值的方法,特别是铀,镍和/或放射性核素。 优选地,使用现有的待回收化学值的工艺设备,在低于大气压的压力下进行该方法。 一方面,该方法包括使用气相氟化剂在低于大气压下回收铀值,然后使用包含一氧化碳和助催化剂,优选硫化氢和低于大气压的混合物的气态反应物回收镍值。