Invention Grant
- Patent Title: Method of manufacturing a pelletized nuclear ceramic fuel
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Application No.: US16309317Application Date: 2017-12-08
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Publication No.: US10854342B2Publication Date: 2020-12-01
- Inventor: Vasiliy Vasil'evich Shilov
- Applicant: Joint Stock Company “Scientific-research institute of chemical technology” , JOINT STOCK COMPANY “SCIENCE AND INNOVATIONS”
- Applicant Address: RU Moscow RU Moscow
- Assignee: Joint Stock Company Scientific-Research Institute of Chemical Technology,Joint Stock Company “Science and Innovations”
- Current Assignee: Joint Stock Company Scientific-Research Institute of Chemical Technology,Joint Stock Company “Science and Innovations”
- Current Assignee Address: RU Moscow RU Moscow
- Agency: Carstens & Cahoon, LLP
- Agent Brandon V. Zuniga; James R. Gourley
- Priority: RU2017116513 20170512
- International Application: PCT/RU2017/000915 WO 20171208
- International Announcement: WO2018/208185 WO 20181115
- Main IPC: G21C3/62
- IPC: G21C3/62 ; G21C3/04

Abstract:
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.
Public/Granted literature
- US20200058413A1 The Method of Manufacturing a Pelletized Nuclear Ceramic Fuel Public/Granted day:2020-02-20
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