机械活化苛性钠分解柿竹园白钨矿的研究

来源期刊：中南大学学报(自然科学版)1999年第3期

论文作者：孙培梅 李洪桂 李运姣 苏鹏抟 赵中伟 刘茂盛

文章页码：31 - 34

关键词：柿竹园白钨矿;机械活化;NaOH分解

Key words：Shizhuyuan scheelite; mechanical activation; NaOH decomposition

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30～40 min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．

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.