机械活化苛性钠分解柿竹园白钨矿的研究  

STUDY OF THE NaOH DECOMPOSITION PROCESS OF SHIZHUYUAN SCHEELITE WITH MECHANICAL ACTIVATION METHOD

作　　者：孙培梅[1] 李洪桂[1] 李运姣[1] 苏鹏抟[1] 赵中伟[1] 刘茂盛[1] 

机构地区：[1]中南工业大学有色冶金系

出　　处：《中南工业大学学报》1999年第3期248-251,共4页Journal of Central South University of Technology(Natural Science)

基　　金：国家"九五"科技攻关计划资助

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２６～２８倍、２８～３０倍，２７０～３１５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６３７％，５３８％，４５９８％的白钨矿，钨分解率平均值分别可达９８７２％，９７７５％，９７９３％．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.

关 键 词：柿竹园白钨矿 机械活化 苛性钠 分解 白钨矿 

分 类 号：TD95[矿业工程—选矿]