JPS57149829A - Microwave heat denitrating apparatus - Google Patents

Microwave heat denitrating apparatus

Info

Publication number
JPS57149829A
JPS57149829A JP3458981A JP3458981A JPS57149829A JP S57149829 A JPS57149829 A JP S57149829A JP 3458981 A JP3458981 A JP 3458981A JP 3458981 A JP3458981 A JP 3458981A JP S57149829 A JPS57149829 A JP S57149829A
Authority
JP
Japan
Prior art keywords
soln
tray
microwaves
microwave
oven
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
JP3458981A
Other languages
Japanese (ja)
Other versions
JPS631248B2 (en
Inventor
Kenichi Matsumaru
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP3458981A priority Critical patent/JPS57149829A/en
Publication of JPS57149829A publication Critical patent/JPS57149829A/en
Publication of JPS631248B2 publication Critical patent/JPS631248B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Constitution Of High-Frequency Heating (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

PURPOSE: To obtain a homogeneous denitration product with the titled deritrating apparatus with high microwave absorbing efficiency by irradiating a nitrate soln. held in a microwave oven with microwaves to carry out denitration at a relatively low temp. under reduced pressure.
CONSTITUTION: A tray 2 filled with a prescribed amount of a uranyl nitrate soln. and/or a plutonium nitrate soln. is set on a lowered tray table 4, and the table 4 is moved upward with a lift 5 to enter the tray 2 in a microwave oven 1. By working a vacuum pump 11, the oven 1 is evacuated 10 to a prescribed reduced pressure, and a microwave oscillator 6 is worked to generate microwaves. The microwaves irradiate the interior of the oven 1 through a waveguide 7 and raise the temp. of the soln. in the tray 2. Water and nitric acid in the soln. are evaporated, denitration reaction is caused to produce oxide, and the generated gas is exhausted through an exhaust pipe 10. Since the tray 2 is made of microwave permeable material, microwaves are allowed to be absorbed in the soln. from the side wall of the tray 2 as well as the surface of the soln.
COPYRIGHT: (C)1982,JPO&Japio
JP3458981A 1981-03-12 1981-03-12 Microwave heat denitrating apparatus Granted JPS57149829A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3458981A JPS57149829A (en) 1981-03-12 1981-03-12 Microwave heat denitrating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3458981A JPS57149829A (en) 1981-03-12 1981-03-12 Microwave heat denitrating apparatus

Publications (2)

Publication Number Publication Date
JPS57149829A true JPS57149829A (en) 1982-09-16
JPS631248B2 JPS631248B2 (en) 1988-01-12

Family

ID=12418510

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3458981A Granted JPS57149829A (en) 1981-03-12 1981-03-12 Microwave heat denitrating apparatus

Country Status (1)

Country Link
JP (1) JPS57149829A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6279394A (en) * 1985-10-01 1987-04-11 動力炉・核燃料開発事業団 Microwave heating denitrating method and device
JP2011088766A (en) * 2009-10-20 2011-05-06 Japan Atomic Energy Agency Method for producing metal oxide particle by hybrid heating method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6279394A (en) * 1985-10-01 1987-04-11 動力炉・核燃料開発事業団 Microwave heating denitrating method and device
FR2591915A1 (en) * 1985-10-01 1987-06-26 Doryokuro Kakunenryo METHOD AND APPARATUS FOR THE DENITRATION OF NITRATE SOLUTIONS BY MICROWAVE HEATING
JP2011088766A (en) * 2009-10-20 2011-05-06 Japan Atomic Energy Agency Method for producing metal oxide particle by hybrid heating method

Also Published As

Publication number Publication date
JPS631248B2 (en) 1988-01-12

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