作　　者： (胥萌）; (晋伟）; (周济）; (李琛光）; (陈林浩）; (王大鹏）;

机构地区： 中国矿业大学化工学院,江苏徐州221116

出　　处： 《煤炭科学技术》 2017年第9期201-208,共8页

摘　　要： 基于表面性质在矿物加工领域的重要性及低温等离子体的改性优势,从产生方式、改性原理和应用途径3个方面综述了低温等离子体在矿物加工领域的应用现状。低温等离子体具有足够高的能量可使反应物分子激发、离解和电离,破坏材料中的化学键,可以快速脱除煤中有机质而不破坏矿物组成,使有机质被活性氧氧化、脱除,得到性质基本未变的矿物质,为分析煤中矿物质的组成,无机质基本性质提供了良好的条件;等离子体环境下,不同矿物的表面改性行为不同,可以扩展不同矿物的表面性质差异,为难浮矿物的分选提供了新途径;等离子体产生臭氧具有很强的活性,可与废水中的有机药剂反应,能有效降解废水中的有机药剂残留,并可用于浮选、煤泥水处理药剂的改性等方面,应用前景广阔。 Based on the importance of surface properties in the field of mineral processing and the advantage of low temperature plasma in modification,the application status of low temperature plasma in mineral processing is reviewed from the aspects of production methods,modification principle and application path.The low temperature plasma has a sufficiently high energy to cause the reactant molecules to excite,dissociate and ionize,destroying the chemical bonds in the material. It can quickly remove the organic matter in the coal without destroying the mineral composition. The organic matter is oxidized and removed by the reactive oxygen species,and the minerals are basically unaltered,which have provided good conditions for analyzing the composition and the basic nature of the inorganic matter of the minerals in the coal. In the plasma environment,the surface modification behavior of different minerals is different,and the difference of surface properties of minerals can be extended,which provides a new way for the classification of difficult mineral. The ozone produced by plasma has a strong reactivity with organic reagents in wastewater,which can effectively degrade organic pesticide residues in wastewater and can be used for flotation and slime water treatment,and has a good application prospect.

关 键 词： 低温等离子体 表面改性 煤泥浮选 废水处理