RE-Si-O-F体系中稀土硅酸盐的生成

Formation of Rare Earth Silicate in RE-Si-O-F System

研究了氟碳铈矿晶体配 Si O2 球团 ,在 10 0 0℃、12 0 0℃温度条件下煅烧时稀土硅酸盐的生成情况。结果表明 ,稀土原料和 Si O2 直接造球 ,在 10 0 0℃温度条件下 ,就有稀土硅酸盐的生成。

At the present work,the roasted situation of bastneasite crystal ore powder containing SiO 2 or SiO 2 and graphite pellets at 1000℃ and 1200℃ was investigated,and the formation of rare earth silicate was analyzed under the above conditions.The results proved that the rare earth silicate would be formed at 1000℃ when the REOF pellet contains SiO 2.