JPS57183327A - Denitrating apparatus of uranyl nitrate and/or plutonium nitrate - Google Patents

Denitrating apparatus of uranyl nitrate and/or plutonium nitrate

Info

Publication number
JPS57183327A
JPS57183327A JP6892581A JP6892581A JPS57183327A JP S57183327 A JPS57183327 A JP S57183327A JP 6892581 A JP6892581 A JP 6892581A JP 6892581 A JP6892581 A JP 6892581A JP S57183327 A JPS57183327 A JP S57183327A
Authority
JP
Japan
Prior art keywords
nitrate
uranyl nitrate
rectifying apparatus
blown
fluidized bed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP6892581A
Other languages
Japanese (ja)
Other versions
JPS6144811B2 (en
Inventor
Akira Tanaka
Toshio Onoshita
Katsuyuki Tanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Metal Corp
Original Assignee
Mitsubishi Metal Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Metal Corp filed Critical Mitsubishi Metal Corp
Priority to JP6892581A priority Critical patent/JPS57183327A/en
Publication of JPS57183327A publication Critical patent/JPS57183327A/en
Publication of JPS6144811B2 publication Critical patent/JPS6144811B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G43/00—Compounds of uranium
    • C01G43/01—Oxides; Hydroxides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

PURPOSE:To prepare uranium trioxide stably, by tilting a rectifying apparatus under a fluidized bed of an apparatus for preparing the uranium trioxide by the thermal decomposition of a solution of uranyl nitrate, and feeding a fluidizing gas of a raw material to a taking out pipe of the uranium trioxide. CONSTITUTION:A tilted rectifying apparatus 3 is provided under a cylindrical body 1 of an apparatus for preparing UO3 by denitrating uranyl nitrate, and a solution (5a) of uranyl nitrate enriched to a given concentration is blown from a feeding pipe 5 to the cylindrical body 1. On the other hand, a fluidizing gas (7a) is blown from a feeding pipe 7 into a wind box 2, passed through the rectifying apparatus 3 and lifted to form a fluidized bed 4. The blown uranyl nitrate is thermally decomposed in the fluidized bed 4 to produce UO3 powder. In this case, coarse particles of the UO3 are lowered along the inner surface of the tilted rectifying apparatus 3, and discharged from a taking out pipe 8. Fine particles (6a) are taken out of an overflow pipe 6 to cause no clogging of the rectifying apparatus 3 and stabilize the operation. The method is applicable to the preparation of plutonium dioxide from plutonium nitrate.
JP6892581A 1981-05-08 1981-05-08 Denitrating apparatus of uranyl nitrate and/or plutonium nitrate Granted JPS57183327A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6892581A JPS57183327A (en) 1981-05-08 1981-05-08 Denitrating apparatus of uranyl nitrate and/or plutonium nitrate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6892581A JPS57183327A (en) 1981-05-08 1981-05-08 Denitrating apparatus of uranyl nitrate and/or plutonium nitrate

Publications (2)

Publication Number Publication Date
JPS57183327A true JPS57183327A (en) 1982-11-11
JPS6144811B2 JPS6144811B2 (en) 1986-10-04

Family

ID=13387713

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6892581A Granted JPS57183327A (en) 1981-05-08 1981-05-08 Denitrating apparatus of uranyl nitrate and/or plutonium nitrate

Country Status (1)

Country Link
JP (1) JPS57183327A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4476098A (en) * 1980-09-02 1984-10-09 Mitsui Eng. & Shipbuilding Microwave heated fluidized bed reactor having stages
FR2721014A1 (en) * 1994-06-13 1995-12-15 Comurhex Process for obtaining uranium trioxide by direct thermal denitration of uranyl nitrate.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01157409U (en) * 1988-04-07 1989-10-30

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4476098A (en) * 1980-09-02 1984-10-09 Mitsui Eng. & Shipbuilding Microwave heated fluidized bed reactor having stages
FR2721014A1 (en) * 1994-06-13 1995-12-15 Comurhex Process for obtaining uranium trioxide by direct thermal denitration of uranyl nitrate.
WO1995034508A1 (en) * 1994-06-13 1995-12-21 Comurhex Societe Pour La Conversion De L'uranium En Metal Et Hexafluorure Method of obtaining uranium trioxide by directly heat denitrating uranyl nitrate
US5628048A (en) * 1994-06-13 1997-05-06 Comurhex Societe Pour La Conversion De L'uranium En Metal Et Hexafluorure Process for obtaining uranium trioxide by direct thermal denitration of uranyl nitrate

Also Published As

Publication number Publication date
JPS6144811B2 (en) 1986-10-04

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