Pre-treatment method for plutonium dioxide raw material for MOX
The invention relates to a pre-treatment method for a plutonium dioxide raw material for MOX. The pre-treatment method comprises: selecting a plutonium oxide raw material, selecting a corresponding sintering boat, uniformly paving the plutonium dioxide raw material into the sintering boat, introduci...
Saved in:
Main Authors | , , , , , , |
---|---|
Format | Patent |
Language | Chinese English |
Published |
27.03.2018
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The invention relates to a pre-treatment method for a plutonium dioxide raw material for MOX. The pre-treatment method comprises: selecting a plutonium oxide raw material, selecting a corresponding sintering boat, uniformly paving the plutonium dioxide raw material into the sintering boat, introducing dried air (Ar-1%H2 to Ar-10%H2) into a sintering furnace at a speed of 0.4-23.4 L/h, slowly increasing the temperature in the sintering furnace to 45-200 DEG C at a heating rate of 3-21 DEG C/min, carrying out thermal insulation for 1-48 h, and cooling the temperature of the sintering furnace toa room temperature at a rate of 3-20 DEG C/min. According to the present invention, the pre-treatment method has characteristics of simple technology and easy achieving, and can be safely and reliablyused in the pre-treatment of the plutonium dioxide raw material for MOX.
种MOX用二氧化钚原料预处理方法,包括:选取氧化钚原料、选择相应的烧结舟、将二氧化钚原料均匀平铺至步骤二的烧结舟中、以0.4~23.4L/h的速度对煅烧炉内通入Ar-1%H~Ar-10%H的干燥空气、将煅烧炉内的温度,以3~21℃/min的升温速率缓慢升温至45~200℃,保温1~48h、以3~20℃/ |
---|---|
Bibliography: | Application Number: CN20161832673 |