中文摘要：

采用分析纯氧化铈（CeO2）、氧化锆（ZrO2）和氧化钙（CaO）、碳酸钙（CaCO3）、氟化钙（CaF2）为原料,经固相反应合成具有烧绿石结构的CaCeZr2O7。通过XRD、SEM、密度和显气孔率以及浸出率的测试,对锆酸盐矿物的合成以及对Ce的浸出性能进行了研究。结果表明,在1 500℃下保温3h用CaF2做钙质原料可得到浸出率较低的锆酸盐固化体样品,其密度和显气孔率分别为3.26g/cm3和32.4%,铈的归一化浸出率为7.14×10-6 g/（m2.d）,对Ce的包容量可达24.38%。由于其包容量大等优良性能,可作为高放废物人造岩石固化的基材。

英文摘要：

Using the analysis reagent of oxygen cerium（CeO2）,zirconium oxide（ZrO2） and calcium oxide（CaO）,calcium carbonate（CaCO3）,calcium flouride（CaF2） as raw material,CaCeZr2O7 is synthetized though the solid phase reaction.By XRD,SEM,density,porosity and leaching rate to study synthesis and the leaching properties of zirconate.The results show that the zirconate mineral is more pure by CaO as calcium materials in 1 500 ℃ heat preservation under three hours,its density and porosity show were 3.26 g/cm3 and 32.4%,respectively.The leaching rate of cerium is 7.14×10-6 g/（m2·d）,and its capacity of Ce can reach to 24.38%,so it can be used as base material for high level radioactive waste.