Makgato, M.H. (Matlou Hector); Moitsheki, L.J.; Shoko, Lay; Kgobane, B.T. (Bethuel Lesole); Morgan, D.L.; Focke, Walter Wilhelm
(Elsevier, 2009)
Coal extraction experiments were conducted using a coal, containing ca. 10% ash, from the Tshikondeni mine in South Africa. This coal dissolves only to a limited extent in pure polar aprotic solvents such as dimethylformamide ...