前言钇具有特异的发光性能,它在光学领域内的应用极为重要。自从1964年美国将Y_2O_3—Eu作为红色荧光粉以来,Y_2O_3的生产和应用得到了迅速发展。目前世界上每年用于彩色电视机生产的Y_2O_3已超过150吨,国内用量超过10吨。三基色荧光灯用Y_2O_3也是一个巨大的市场。我国稀土资源丰富,储量大、易开采、工业价值高,尤其 Introduction Yttrium has a specific luminescent properties, its application in the optical field is extremely important. Since the United States in 1964 Y_2O_3-Eu as a red phosphor, Y_2O_3 production and application of rapid development. At present, the annual output of Y_2O_3 for color television sets in the world has exceeded 150 tons and the domestic consumption exceeds 10 tons. Tricolor fluorescent lamp Y_2O_3 is also a huge market. China is rich in rare earth resources, large reserves, easy exploitation, high industrial value, especially