Denitration systems
AssigneesTokyo Shibaura Denki Kabushiki Kaisha, Doryokuro Kakunenryo Kaihatsu Jigyodan
InventorsKenichi Matsumaru, Hirobumi Oshima, Masaaki Hirayama
Life of this patent
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Abstract
A system for denitrating a starting nitric acid solution by irradiation of microwaves to obtain oxide product of the solution comprises a receiver for receiving the solution, a rectangular oven vessel provided with a bottom plate on which the receiver is put, and a conveying mechanism located below the bottom plate for continuously conveying the receiver on the bottom plate throughout the oven vessel. A microwave generator is operatively connected to the oven vessel for generating microwaves to irradiate the content of the receiver when it passes throughout the oven vessel. The receiver may be rotated and vertically moved when it is subjected to denitration and calcination in the oven vessel.
Claims6
A system for denitrating a starting nitric acid solution of plutonium nitrate, uranyl nitrate, or mixture thereof by microwave heating thereby to obtain oxide products of said solution, comprising means for receiving said starting solution, oven means having a generally rectangular configuration and provided with a bottom plate on which said receiving means is put, conveying means located below said bottom plate of said oven means for continuously conveying said receiving means on said bottom plate throughout said oven means, and heating operatively connected to said oven means for generating microwaves to irradiate the content in said receiving means when it passes through said oven means.
Dependencies are inferred from the claim text.