7Iveson,SM,et al.Gravity Separation and Declaiming of Fine Coal:Pilot-Plant Study Using Reflux Classifiers in Series[J].International journal of coal prep aration and utilization,2014(3).
8Gullah ozbayoglu.Coal Preparation Practices in Turkey[R].IOP Coal Preparation Conference in China,2004(3).
9Swanson A.A 2004 Review of Australian Coal Preparation[R].IOP Coal Preparation Conference in China,2004(3).