【摘要】 根据柿竹园白钨矿的矿物特征，对机械活化ＮａＯＨ处理柿竹园不同品位的白钨矿进行了研究．试验表明，在一定的碱用量下，保温时间对分解率有明显的影响，因此，控制合适的保温时间对分解过程至关重要．在碱用量分别为理论量的２６～２８倍、２８～３０倍，２７０～３１５倍，保温温度１６０℃，保温３０～４０ｍｉｎ的条件下，处理含ＷＯ３质量分数分别为６３７％，５３８％，４５９８％的白钨矿，钨分解率平均值分别可达９８７２％，９７７５％，９７９３％．工业试验也取得了同样好的效果更多还原

【Abstract】 According to the mineral features of Shizhuyuan shcheelite, the NaOH decomposition process of scheelite with different grades has been studied by mechanical activation method. The results show that at a certain amount of NaOH, the period of maintaining temperature has a clear effect on the decomposing process. When the scheelites with WO 3 percentage of 63.7%, 53.8%, 45.98% respectively are treated at 160 ℃ for 30～40 minutes, and when the alkali consumption amount is 2.6～2.8, 2.8～3.0, 2.70～3.15 times (times of theoretical value), the average tungsten decomposting efficiencies can reach 98.72%, 97.75%, 97.93% respectively. Industrial tests have obtained the same satisfactory results.更多还原