本文研究了碱法热球磨分解白钨细泥过程的条件和杂质行为。试验结果表明,处理含WO_333～46％的白钨细泥,在碱用量为理论量2.5～3.0倍,分解温度155℃左右、保温1.5小时下,分解率可达98.0～99.3％。同时,分解过程中杂质浸出率远低于经典工艺,并通过试验查明了分解过程杂质浸出率低的原因。 In this paper, the conditions and impurity behavior of the incineration of scheelite slime by alkaline hot ball milling were studied. The experimental results show that the decomposition rate of white tungsten fine sand containing WO_333 ~ 46% can reach 98.0 ~ 99.3% when the amount of alkali is 2.5 ~ 3.0 theoretical and the decomposition temperature is about 155 ℃. At the same time, the leaching rate of impurities in the decomposition process is much lower than that of the classical process, and the reasons for the low leaching rate of impurities in the decomposition process are also found through experiments.