添加剂对煤-水界面性质的影响与效能研究  

The Influence of Chemical Additive on Property of Coal-Water Interface and Research on the Performance Effected

作　　者：李凤起[1] 朱书全[2] 

机构地区：[1]太原理工大学矿业工程学院,山西省太原市030024 [2]中国矿业大学北京校区,北京市100083

出　　处：《选煤技术》2001年第1期22-24,共3页Coal Preparation Technology

摘　　要：将木质素磺酸钠和经化学改性后的木质素磺酸钠用于大同煤制浆。通过测定吸附量、润湿热和ξ－电位，分析了煤－水分散体系界面性质与添加剂效能的关系。从而把水煤浆成浆性与煤粒表面物化性质联系起来，对进一步探讨成浆机理，筛选、合成水煤浆添加剂具有一定的指导意义。Sodium lignosulfonate and sodium lignolfonate are used in slurry preparation with Datong coal.The relationship between the character of the coal-water dissipation system interface and the edditive efficiency is analysed by measuring absorbent quantity, wetting heat and ξ-potenttial of the interface. The result shows that slurry ability of CWS has some affiliations With the physicochemical property of coal-interface. This means that our research has great significance to further probing into slurry menchanism of CWS and composing CWS additive.

关 键 词：水煤浆 添加剂 界面性质 分散性 成浆机理 木质素磺酸钠 润湿热 

分 类 号：TQ536[化学工程—煤化学工程] TQ542.4