新疆滴水铜矿石工艺矿物学研究

Research on the Process Mineralogy of the Ore from Dishui Copper Mine in Xinjiang

新疆滴水铜矿开发利用前,由于缺乏深入的工艺矿物学研究,因而该资源的综合利用水平不高。为改善该状况,对有代表性矿石进行了较系统的工艺矿物学研究。结果表明:1矿石中铜矿物种类繁多,以氧化铜矿物为主,约占总铜矿物的83%以上,硫化铜及自然铜不足总铜的17%。主要含铜矿物有孔雀石、赤铜矿、硅孔雀石、黑铜矿、蓝铜矿、铜蓝、辉铜矿、斑铜矿、黄铜矿等。2矿石中的脉石矿物主要有石英(燧石)、斜长石、微斜长石、条纹长石、黑云母,方解石,蚀变矿物主要有绿泥石、绿帘石等。3矿石的主要结构形式有砂状结构、泥状结构、棱角状结构、交代溶蚀结构、束状结构和皮壳状结构,主要构造形式有层状构造、浸染状构造、条带状构造、块状构造、网纹状构造等。4各种铜矿物嵌布特征差异较大,且嵌布粒度粗细极不均匀,最小粒仅为0.001 mm左右,最大粒一般为1 mm左右,有的甚至达15 mm。系统的工艺矿物学分析为确定科学合理的选矿工艺流程及工艺参数提供了重要的理论依据。

Due to the lack of the process mineralogy of Dishui Copper Mine,the minerals resource have not been utilizedvery well before being developed. To improve this situation, process mineralogy research on representative samples was conduc-ted. The results showed that（1） There is a great variety of copper minerals in the ore. Oxidized copper minerals are the mainform of copper,accounting for 83% of the total copper. Copper sulfide minerals and natural copper share the other 17%. Maincopper bearing minerals includes malachite, zigueline, ehrysocolla, tenorite, azurite, covellite, chalcocite, bornite, ehalcopyrite,etc. ; （2）The gangue minerals are mainly quartz （flint） , plagioclase feldspar, microcline, striped feldspar, biotite, calcite, and al-teration minerals are chlorite,epidote,etc.. （3）The main textures of ore are sandy texture,pelitic texture,angular texture, recta-somatic dissolution structure, packet structure and shell structure. The main structures in the ore are layered structure, dissemi-nated structure,banded structure,massive structure and network structure. （4）There is great difference among various copperminerals. Grain size has an extensive distribution from 0. 001 mm to 1 mm,and some one is even up to 15 ram. The systemicprocess mineralogy research provide theoretical basis to determine the scientific and reasonable benefieiation process and pa-rameters.