| 摘要 |
PURPOSE:To carry out the thermal denitration of a large amount of a metal nitrate, in high efficiency, by using an apparatus furnished with a rotary partitioning member for transferring the metal nitrate solution, a microwave radiation means, etc. in the main body of the apparatus. CONSTITUTION:In an apparatus for the thermal denitration of metal nitrates such as uranyl nitrate, plutonium nitrate, etc., the apparatus is furnished with a partitioning member 2 having a plurality of radially arranged partitioning plates 3 which contact slidably and watertightly to the inner surface of the circular main vessel 1 and divide the vessel to sectors, a means for rotating the partitioning member 2, and a microwave radiation means 11. The metal nitrate solution is supplied from the supplying means 9 to the main vessel 1, and transferred circularly in the vessel 1 by the rotation of the partitioning member 2. During the transfer, the nitrate solution is subjected to the thermal denitration by the action of microwave radiated from the microwave radiation means 11, and the produced powdery or granular oxide is taken out from the outlet hole 17. |
