本文以天然的α锂辉石与晶型转化后的β锂辉石在化学性质上的差别为基础,研究了醋酸钠熔融法测定锂辉石焙烧转化率的测定条件,拟定了分析方法。该方法对β锂辉石中Li_2o的提取率为99.7％,相对标准偏差为0.30％。方法准确、快速。 In this paper, based on the difference of chemical properties between natural spodumene and β-spodumene transformed by crystalline form, the conditions for the determination of the conversion of spodumene by sodium acetate melt method were studied and the analytical methods were proposed. In this method, the extraction rate of Li_2o in β-spodumene is 99.7% and the relative standard deviation is 0.30%. The method is accurate and fast.