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| 1 | Purification,application and current market trend of natural graphite:A review显示文摘Graphite has a stacked planar sp2-hybridized C6 ring structure,displaying a polymorphism with rhombohedral,hexagonal,and turbostratic.Based on its structure-property relationship,it affords a variety of technologically innovative applications or performances in industries,such as lithium-ion batteries,fuel cells,two dimensional graphene,water purification,electronics,fiber optics,spintronics,refractories,electrical products,electric vehicles,etc.The monetary value of graphite depends largely on carbon content and flake size.However,the physical separation of graphite from its ore body is known to be very expensive,energy intensive and time-consuming.Hence,this study extensively describes a current purification method for producing high-quality graphite material with impurities reaching about 10–100 mg/kg,attracting a lot of end users.It also describes the potential applications of graphite materials and identifies the future scope of a new market,depending on material purity.Finally,the current and future graphite-mining countries are investigated in details. | Allah D.Jara Amha Betemariam Girma Woldetinsae Jung Yong Kim | 2019 | International Journal of Mining Science and Technology2019，29，5： | 17 |
| 2 | 陕西某鳞片石墨矿选矿工艺试验研究显示文摘以陕西某地鳞片石墨矿为研究对象,在其X射线衍射分析和化学分析的基础上,进行了系统的选矿工艺试验研究,确定了最佳粗磨磨矿细度、粗选捕收剂用量、起泡剂用量及粗选矿浆浓度,并在此基础上进行了全流程的开路试验和闭路试验,并对闭路浮选精矿进行了成分和形貌分析。结果表明,该矿石为晶质片状石墨,固定碳含量为13.70%,主要脉石矿物为方解石和石英。经过系统选矿试验,最终确定采用一次粗磨、一次粗选、五次再磨和六次精选闭路流程,获得了精矿固定碳含量95.92%、回收率90.35%的良好指标。精矿分析结果表明,脉石矿物主要存在于粗粒级和细粒级中,鳞片石墨粒径大部分在50μm以上,石墨鳞片结晶普遍较好,表面平滑,大鳞片石墨受到磨剥,有少量细小杂质颗粒附着于表面上。 | 王康 高惠民 任子杰 管俊芳 汪巍 韩子文 | 2020 | 矿产保护与利用2020，40，6： | 1 |
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