Microwave-Heating Denitration Apparatus

摘要

The present invention concerns a denitration apparatus used in a process for producing the powder of uranium dioxide, plutonium dioxide or their mixture to be used for producing nuclear fuel from a solution of uranyl nitrate, plutonium nitrate or their mixture. More specifically, the present invention concerns a microwave-heating denitration apparatus which operates according to a process in which the above-mentioned solution is fed to the first rotary cylindircal heating apparatus for preheating by an external or internal heater, after which the resulting substance is fed to the second rotary cylindrical heating apparatus and exposed to microwaves which cause a temperature rise and denitration. When the temperature reaches 350 to 400 exp 0 C, denitration occurs and a dry cake of denitrated product is obtained. (ERA citation 08:014038)