id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
archive-394	Modiga, Agnes; Sosibo, Ndabenhle; Singh, Nirdesh; Marape, Getrude	A Feasibility Study Evaluating the Efficiency of Fine Coal Washing Using Gravity Separation Methods	2019	9	.pdf	application/pdf	4246	223	61	Fine coal is generally less than 0.5 mm and greater than 150 microns, whereas ultra-fine coal is less than 150 microns, normally in the form of a slurry, (Hand, 2000). The process was found to be more expensive compared to spiral separation or other techniques for fine coal beneficiation though it has the possibility of cleaning fine coal from the No. 4 Seam of the Witbank coalfield , which is generally of poor quality pg.	cache/archive-394.pdf	txt/archive-394.txt