- 专利标题: The Method of Manufacturing a Pelletized Nuclear Ceramic Fuel
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申请号: US16309317申请日: 2017-12-08
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公开(公告)号: US20200058413A1公开(公告)日: 2020-02-20
- 发明人: Vasiliy Vasil'evich SHILOV
- 申请人: Joint Stock Company "Scientific-research institute of chemical technology" , JOINT STOCK COMPANY "SCIENCE AND INNOVATIONS"
- 优先权: RU2017116513 20170512
- 国际申请: PCT/RU2017/000915 WO 20171208
- 主分类号: G21C3/62
- IPC分类号: G21C3/62 ; G21C3/04
摘要:
The invention is related to nuclear technologies, in particular, to the technology of producing nuclear oxide fuel for fuel elements, this oxide fuel can be used for manufacturing palletized nuclear fuel from uranium dioxide to be consumed by NPPs. The essence of the invention: this method of producing palletized nuclear fuel from uranium dioxide involves preparation of uranium dioxide moulding powder with/without uranium oxide, at this point powdered uranium dioxide is used as a raw material for preparation of moulding powder. Powdered uranium dioxide should be in the following proportion: O/U=2.37±0.04, it is obtained using a renowned method—by air heating of powdered uranium dioxide (ceramic grade) with the following proportion O/U=2.01−2.15. The technical result of the invention is increased mechanical strength of sintered pellets and a larger grain size of sintered pellets. 3 appendices, 1 diagram, 2 figures
公开/授权文献
- US10854342B2 Method of manufacturing a pelletized nuclear ceramic fuel 公开/授权日:2020-12-01
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