云南澜沧老厂斑岩钼(铜)矿体中Re-Mo关系研究

Relationship between Re and Mo in the Laochang Porphyry Mo(Cu) Deposit in Lancang,Yunnan

澜沧老厂资源危机矿山深部新发现的厚大斑岩钼(铜)矿体成为矿区中长期发展的关键性接替资源,研究钼(铜)矿体中伴生组分Re的质量分数及其与Mo的关系,有利于矿床经济评价和推动资源勘查与开发进程。在用ICP-MS方法测定矿石、主要矿石矿物和脉石矿物中Re、Mo质量分数的基础上,应用统计学原理,研究了矿石中Re、Mo质量分数间的关系。结果显示,矿区工业钼矿体中w(Re)平均值虽然仅0.17×10-6,但辉钼矿中w(Re)平均值达164.2×10-6,87%以上的Re赋存于辉钼矿中;矿体中的Re、Mo质量分数呈显著的线性相关关系,线性相关公式为y=0.63x+0.14。今后在对钼矿资源的开发利用中,可望从辉钼矿精矿中回收Re,从而提高资源的经济价值。

The new discovery,thick porphyry molybdenum（copper） ore body,in the deep of resources crisis mine in Laochang of Lancang will be the crucial substitute resources in the medium and long term development of mining resources.The research on the Re content and relationship with Mo,as an associated component of molybdenum（copper） ore body,is helpful for economic evaluation of deposit and resources exploration and development process.Based on ICP-MS method to determine the contents of Mo and Re among ores,major ore minerals and gangue minerals in molybdenum ore body,the paper applies statistical principle to study the relationship between Re and Mo contents in related ores.The result shows that Re contents in industrial molybdenum deposit is only 0.17×10-6 in average,but more than 87 percent of Re is hosted in molybdenite with an average of 164.2×10-6.It is also found that Re and Mo contents show a significant linear correlation and the formula is y=0.63x＋0.14.It is expected to retrieve Re from molybdenite concentrate in development and utilization of molybdenum ore resources to enhance the economic value of resources.