Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Zirconolite type ceramic solidified body and preparation method and application thereof
The invention belongs to the field of solidification treatment for high-radioactivity solid-state nuclear waste, and discloses a zirconolite type ceramic solidified body (CaZrTi2O7) and a preparationmethod and application thereof. The preparation method comprises the following steps: mixing a calcium compound, nanometer titanium dioxide and zirconium oxide, adding a solvent and zirconium oxide grinding balls, carrying out ball-milling and mixing, then successively performing drying and screening to obtain mixed powder; and carrying out dry pressing on the mixed powder to form a ceramic blank,and heating the ceramic blank to 1100-1400 DEG C, carrying out microwave sintering, conducting cooling to 800-1000 DEG C, and carrying out cooling in a furnace. The zirconolite solidified body is more uniform, a reaction temperature is lower, preparation process is simple, a synthesis speed is high, energy consumption is low, and a good foundation is laid for engineering of zirconolite type man-made rock solidified high-level solid waste.
本发明属于高放射性固态核废料固化处理领域，公开一种钙钛锆石型陶瓷固化体(CaZrTiO)及其制备方法和应用。将钙化合物、纳米二氧化钛和氧化锆混合，加入溶剂和氧化锆磨球进行球磨混合，干燥后过筛得到混合粉体；再将混合粉体进行干压成型成陶胚，将陶胚升温至1100～1400℃进行微波烧结，降温至800～1000℃后随炉冷却制得。本发明的钙钛锆石固化体更为均匀，且反应温度较低、制备工艺简单、合成速度高、能耗低，为钙钛锆石型人造岩石固化高放固体废物的工程化奠定了良好的基础。
Zirconolite type ceramic solidified body and preparation method and application thereof
The invention belongs to the field of solidification treatment for high-radioactivity solid-state nuclear waste, and discloses a zirconolite type ceramic solidified body (CaZrTi2O7) and a preparationmethod and application thereof. The preparation method comprises the following steps: mixing a calcium compound, nanometer titanium dioxide and zirconium oxide, adding a solvent and zirconium oxide grinding balls, carrying out ball-milling and mixing, then successively performing drying and screening to obtain mixed powder; and carrying out dry pressing on the mixed powder to form a ceramic blank,and heating the ceramic blank to 1100-1400 DEG C, carrying out microwave sintering, conducting cooling to 800-1000 DEG C, and carrying out cooling in a furnace. The zirconolite solidified body is more uniform, a reaction temperature is lower, preparation process is simple, a synthesis speed is high, energy consumption is low, and a good foundation is laid for engineering of zirconolite type man-made rock solidified high-level solid waste.
本发明属于高放射性固态核废料固化处理领域，公开一种钙钛锆石型陶瓷固化体(CaZrTiO)及其制备方法和应用。将钙化合物、纳米二氧化钛和氧化锆混合，加入溶剂和氧化锆磨球进行球磨混合，干燥后过筛得到混合粉体；再将混合粉体进行干压成型成陶胚，将陶胚升温至1100～1400℃进行微波烧结，降温至800～1000℃后随炉冷却制得。本发明的钙钛锆石固化体更为均匀，且反应温度较低、制备工艺简单、合成速度高、能耗低，为钙钛锆石型人造岩石固化高放固体废物的工程化奠定了良好的基础。
Zirconolite type ceramic solidified body and preparation method and application thereof
一种钙钛锆石型陶瓷固化体及其制备方法和应用
GUO WEIMING (Autor:in) / WEI ZIJUN (Autor:in) / SUN SHIKUAN (Autor:in) / WU LIXIANG (Autor:in) / NIU WENBIN (Autor:in) / LIN HUATAI (Autor:in)
12.05.2020
Patent
Elektronische Ressource
Chinesisch
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