摘要
为了回收贵州某钼矿中钼,通过化学分析、XRD、筛析等方法,研究原矿元素和矿物组成,以及粒度分布规律,采用焙烧-浸出工艺回收该矿石中的钼。结果表明,矿石中主要有价元素为钼,Mo O3含量为0.63%,金属矿物主要有菱锌矿、彩钼铅矿,非金属矿主要为白云石和重晶石,次要为石英,钼以细粒甚至微细粒嵌布为主,当矿石颗粒粒度为-0.045 mm时,钼的品位为0.72%,钼分布率高达66.61%。焙烧-浸出实验结果表明,当碳酸钠用量为7.0 g,焙烧时间为2 h,Na OH浓度为90 g/L,浸出时间为4 h时,钼的浸出率较好,为58.97%,焙烧-浸出工艺回收该彩钼铅矿中的钼是可行的。
Chemical element,mineral constituent,and grain fineness distribution were investigated by chemical analysis,XRD,screen analysis,and so on. Roasting-leaching process was explored to recovery molybdenum of a Guizhou wulfenite. The results showed that the valuable element of the raw ore was molybdenum,its content was 0. 63%. The metallic mineral consisted mainly of smithsonite and wulfenite,the non-metal ores were mainly dolomite and barite,the minor non-metal ores was quartz. The fine grain and micro-grained dissemination molybdenum dominated in the run of mine ore,the molybdenum content in particle granularity of-0. 045 mm was 0. 72%,its distribution rate was up to 66. 61%. The roastingleaching results showed that the molybdenum extraction reached 58. 97% at Na OH dosage of 7. 0 g,calcination time of 2 h,Na OH content of 90 g/L,and calcination time of 4 h Roasting-leaching process of a Guizhou wulfenite is feasible.
作者
傅开彬
汤鹏成
秦天邦
徐信
彭铁峰
陈梦君
FU Kai-bin;TANG Peng-cheng;QIN Tian-bang;XU Xin;PENG Tie-feng;CHEN Meng-jun(Key Laboratory of Solid Waste Treatment and Resource Recycle,Ministry of Education,Mianyang 621010,China;State Key Laboratory of Mineral Processing,Beijing 100160,China)
出处
《应用化工》
CAS
CSCD
北大核心
2018年第7期1437-1440,共4页
Applied Chemical Industry
基金
矿物加工科学与技术国家重点实验室开放研究基金专项资助(BGRIMM-KJSKL-2016-07)
固体废物处理与资源化教育部重点实验室资助课题(13zxgk07)
四川省教育厅科研项目(16ZA0143)
关键词
彩钼铅矿
焙烧
浸出
氢氧化钠
wulfenite
roasting
leaching
sodium hydroxide
