KR840001452A - Manufacturing method of sinterable uranium dioxide powder - Google Patents

Manufacturing method of sinterable uranium dioxide powder Download PDF

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Publication number
KR840001452A
KR840001452A KR1019820004119A KR820004119A KR840001452A KR 840001452 A KR840001452 A KR 840001452A KR 1019820004119 A KR1019820004119 A KR 1019820004119A KR 820004119 A KR820004119 A KR 820004119A KR 840001452 A KR840001452 A KR 840001452A
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KR
South Korea
Prior art keywords
heating
dioxide powder
uranium dioxide
carried out
temperature
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Application number
KR1019820004119A
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Korean (ko)
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KR880002699B1 (en
Inventor
에이. 손톤 토마스 (외 1)
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원본 미기재
더 바브콕 앤드 월콕스 캄파니
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Publication of KR840001452A publication Critical patent/KR840001452A/en
Application granted granted Critical
Publication of KR880002699B1 publication Critical patent/KR880002699B1/en

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    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G43/00Compounds of uranium
    • C01G43/01Oxides; Hydroxides
    • C01G43/025Uranium dioxide
    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21CNUCLEAR REACTORS
    • G21C3/00Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • G21C3/42Selection of substances for use as reactor fuel
    • G21C3/58Solid reactor fuel Pellets made of fissile material
    • G21C3/62Ceramic fuel
    • G21C3/623Oxide fuels
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Ceramic Engineering (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

내용 없음No content

Description

소결성 이산화 우라늄 분말의 제조방법Manufacturing method of sinterable uranium dioxide powder

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims (10)

핵연료 제조용 소결성 이산화 우라늄 분말의 개량된 제조방법에 있어서, 출발물질은 질산 우라닐 헥사히드레이트, 이 우라늄산암모늄과 탄산우라닐암모늄으로부터 선택한 화합물에서 선택하고; 출발화합물을 마이크로웨이브 유도 전기로에서 충분한 시간동안 가열하여 상기 출발 화합물을 분해시키고; 분해된 화합물을 환원 가스하에 마이크로웨이브 유도 전기로에서 충분한 시간동안 가열하여 분해된 화합물을 이산화 우라늄 분말로 환원시키고; 환원 가스하에 이산화우라늄 분말을 냉각시켜서 함을 특징으로 하는 상기 방법.In an improved process for the production of sinterable uranium dioxide powder for the manufacture of nuclear fuel, the starting material is selected from compounds selected from uranyl nitrate hexahydrate, ammonium uranate and uranyl ammonium carbonate; Heating the starting compound in a microwave induction furnace for a sufficient time to decompose the starting compound; Heating the decomposed compound in a microwave induction furnace under a reducing gas for a sufficient time to reduce the decomposed compound into uranium dioxide powder; Said method, characterized in that by cooling the uranium dioxide powder under reducing gas. 청구범위 1에 있어서, 첫 서술한 가열을 산화가스하에서 행함을 특징으로 하는 방법.The method according to claim 1, wherein the heating described above is performed under oxidizing gas. 청구범위 1에 있어서, 첫 서술한 가열을 흔한 공기-증기 가스하에서 행함을 특징으로 하는 방법.Method according to claim 1, characterized in that the first described heating is carried out under a common air-steam gas. 청구범위 1에 있어서, 첫 서술한 가열을 불활성 기체하에서 행함을 특징으로 하는 방법.The method according to claim 1, wherein the heating described above is performed under an inert gas. 청구범위 1에 있어서, 출발 화합물 분해가 UO3내지 U3OS의 범위에서 이루어짐을 특징으로 하는 방법.Process according to claim 1, characterized in that the decomposition of the starting compound takes place in the range of UO 3 to U 3 O S. 청구범위 1에 있어서, 첫 서술한 가열을 약 400-600℃의 온도에서 행함을 특징으로 하는 방법.Method according to claim 1, characterized in that the first described heating is carried out at a temperature of about 400-600 ° C. 청구범위 1에 있어서, 첫 서술한 가열을 약 350-450℃의 온도에서 행함을 특징으로 하는 방법.Method according to claim 1, characterized in that the first described heating is carried out at a temperature of about 350-450 ° C. 청구범위 1에 있어서, 둘째번 서술한 가열을 약 450-550℃의 온도에서 행함을 특징으로 하는 방법.Method according to claim 1, characterized in that the second heating is carried out at a temperature of about 450-550 ° C. 청구범위 1에 있어서, 이산화우라늄 분말을 실온으로 냉각시킴을 특징으로 하는 방법.The method of claim 1 wherein the uranium dioxide powder is cooled to room temperature. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR8204119A 1981-09-11 1982-09-10 Method for preparing a sinterable uranium dioxide powder KR880002699B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US30126781A 1981-09-11 1981-09-11
US06/301267 1981-09-11

Publications (2)

Publication Number Publication Date
KR840001452A true KR840001452A (en) 1984-05-07
KR880002699B1 KR880002699B1 (en) 1988-12-26

Family

ID=23162649

Family Applications (1)

Application Number Title Priority Date Filing Date
KR8204119A KR880002699B1 (en) 1981-09-11 1982-09-10 Method for preparing a sinterable uranium dioxide powder

Country Status (18)

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JP (1) JPS5874526A (en)
KR (1) KR880002699B1 (en)
AT (1) AT385267B (en)
AU (1) AU8813382A (en)
BE (1) BE894371A (en)
BR (1) BR8205375A (en)
CA (1) CA1197069A (en)
CH (1) CH654820A5 (en)
DE (1) DE3232867A1 (en)
DK (1) DK406882A (en)
ES (1) ES8403347A1 (en)
FR (1) FR2512801B1 (en)
GB (1) GB2105697B (en)
IL (1) IL66706A (en)
IT (2) IT8209510A1 (en)
NL (1) NL8203357A (en)
NO (1) NO823079L (en)
SE (1) SE8205138L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6228337B1 (en) 1998-12-02 2001-05-08 Cameco Corporation Method for reducing uranium trioxide
US7824640B1 (en) 2006-07-25 2010-11-02 Westinghouse Electric Co. Llc Two step dry UO2 production process utilizing a positive sealing valve means between steps
EP1985587A1 (en) * 2007-04-27 2008-10-29 Westinghouse Electric Company LLC Two step dry UO2 production process
CN113023782B (en) * 2021-03-10 2023-05-05 哈尔滨工程大学 Sodium diuranate (Na) 2 U 2 O 7 ) Direct preparation of UO 2 Is a method of (2)
CN116253363A (en) * 2022-11-25 2023-06-13 中国核动力研究设计院 Uranium dioxide powder and preparation method and application thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3579311A (en) * 1968-04-25 1971-05-18 Gen Electric Process and apparatus for producing uo2 powder
FR2370695A1 (en) * 1976-11-16 1978-06-09 Comurhex Uranium oxide prodn. by thermal decomposition of uranyl nitrate - with catalytic reduction of the nitrogen oxide(s) produced to provide heat for the process
DE2724710A1 (en) * 1977-06-01 1978-12-07 Reaktor Brennelement Union Uranium di:oxide powder prodn. - by reducing ammonium uranyl carbonate with ammonia in steam, giving low fluoride content
JPS54121442A (en) * 1978-03-13 1979-09-20 Power Reactor & Nuclear Fuel Dev Corp Microwave heating device for radioactive material
JPS55104926A (en) * 1979-01-29 1980-08-11 Toshiba Corp Microwave heat-denitrating apparatus

Also Published As

Publication number Publication date
NL8203357A (en) 1983-04-05
IT1192507B (en) 1988-04-20
BR8205375A (en) 1983-08-23
AT385267B (en) 1988-03-10
IT8209510A0 (en) 1982-09-10
AU8813382A (en) 1983-03-17
GB2105697B (en) 1985-09-11
FR2512801B1 (en) 1989-02-24
CH654820A5 (en) 1986-03-14
SE8205138D0 (en) 1982-09-09
IT8209510A1 (en) 1984-03-10
GB2105697A (en) 1983-03-30
IL66706A (en) 1986-01-31
SE8205138L (en) 1983-03-12
ATA335682A (en) 1987-08-15
KR880002699B1 (en) 1988-12-26
FR2512801A1 (en) 1983-03-18
ES515439A0 (en) 1984-04-01
ES8403347A1 (en) 1984-04-01
DK406882A (en) 1983-03-12
NO823079L (en) 1983-03-14
DE3232867A1 (en) 1983-12-15
JPS5874526A (en) 1983-05-06
BE894371A (en) 1983-01-03
IL66706A0 (en) 1982-12-31
CA1197069A (en) 1985-11-26

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