褐煤浮选现状及前景展望  

Current situation and prospect of lignite flotation

作　　者：张星[1] 陶秀祥[1] 胡忠波[1] 

机构地区：[1]中国矿业大学化工学院,江苏徐州221008

出　　处：《中国矿业》2011年第8期98-102,105,共6页China Mining Magazine

基　　金：国家自然科学基金资助(编号:50874107;50374068)

摘　　要：褐煤是我国主要的能源之一,随着资源的日益枯竭,大力加强低阶煤的利用,对我国能源高效利用有着重大的意义。浮选处理细粒煤的主要方法,然而,褐煤的浮选至今只停留在实验室研究阶段。本文首先分析了褐煤浮选困难的原因,其次综述了国内外褐煤浮选所用的药剂制度、pH对褐煤表面荷电的影响及不同类型的表面活性剂在褐煤表面的吸附情况,以及改变褐煤表面性质的相关造粒研究。在此基础上,对以后的褐煤浮选研究提出了建议和展望。The lignite is one of the major energy in our country,witn the increasing depletion of resources,enhance the use of low rank coal is of great significance.The flotation is one of the major methods to process the fine particle coal,but the lignite flotation are still stay at laboratory.The reason of lignite hard flotation and the research results of lignite flotation were described.Studies are taken on the lignite floation reagent system are also depicted.The surface charge of lignite change with the pH chang and diffrernt surfactants adsorbed on lignite.Change the characters of lignite can be taken some measures to make new particles.On these facts,some suggestions and outlooks about the lignite flotation were also proposed.

关 键 词：褐煤 表面改性 浮选 

分 类 号：TD94[矿业工程—选矿]