JPS57149829A - Microwave heat denitrating apparatus - Google Patents
Microwave heat denitrating apparatusInfo
- 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
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
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)
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 |
-
1981
- 1981-03-12 JP JP3458981A patent/JPS57149829A/en active Granted
Cited By (3)
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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