1Advance of the research on the technologies for intensification of nanobubble flotation processXING Yaowen, YANG Haichang, GUI Xiahui, CAO YijunSpecial Column1-122Study of grid-structured flotation particle surface wetting behavior characteristicsZHANG Rui, YU Feng, XING Yaowen, GUI XiahuiSpecial Column13-213Influence of floatation bubble size on detachment mechanism of coarse-grained particles from air bubbles in turbulent vortexSHI Wenqing, DING Shihao, YIN Qinglin, HE Qi, CAO Yijun, GUI Xiahui, XING YaowenSpecial Column22-294Study of mechanism of adhesion between bubble and coal particle surface using coal models prepared with different hydrophobicitiesZHU Chunyun, YU Feng, LI Ming, SUN Lijuan, XING Yaowen, GUI XiahuiSpecial Column30-365Effect of quality of water for pulp conditioning on bubble size dis-tribution in flotation processMENG Qingyong, JIN Liang, LI Junwen, YANG Ming, ZHANG Yong, ZHU HongzhengSpecial Column37-436Study of effect of frother on bubble characteristic in flotation processPANG ShihuSpecial Column44-507A study of the effect of preconditioning of pulp through high-in-tensity shearing on fine coal flotation kineticsZHANG Feng, YANG Runquan, WANG HuaifaSpecial Column51-558Course of development of fine coal flotation process in ChinaCHENG Hongzhi, ZHANG BoFlotation process and technology56-619Experimental study on enhancement of flotation of jig middling through in-depth grinding liberation and use of compound reagentLI Jianqiang, LI Ao, LU Hang, WEI Zhao, XING Yaowen, GUI XiahuiFlotation process and technology62-6710Experimental study on treatment of middlings produced in gravitational separation of collophanite using flotation process and gravity separation plus flotation combined processDENG Mingrui, TAO Youjun, ZHAO YounanFlotation process and technology68-7511Experimental study on hard-to-float coal slime flotationXU ChentaoFlotation process and technology76-8212Study and application of the characteristic flotation process at Qinxin Coal Preparation PlantWANG Zhihong, WU Xiaogang, LI JiangangFlotation process and technology83-8813Application of the intelligent flotation system at Xiayukou Coal Preparation PlantSUN Zaizheng, LIU Xinmin, BAI Xiao, LIU Changyue, CHEN Jingwei, CHEN Kang, XU DonglinFlotation process and technology89-9514Study and application of intelligent flotation reagent dosing sys-tem at Panji Coal Preparation PlantSUN Zongcheng, NI Hengqiu, LYU WenbaoFlotation process and technology96-102 