Tag Archives: 3R-type

Process for purifying natural 3R-type graphite ore

Application Number: 00110587Application Date: 2000.06.30Publication Number: 1331048Publication Date: 2002.01.16Priority Information: International: C01B31/04Applicant(s) Name: Guo DongzhangAddress: Inventor(s) Name: Guo Dongzhang;Li Gui;Zhu GuizengPatent Agency Code: 21109Patent Agent: liang yanAbstract A process for purifying the natural 3R-type graphite ore includes crushing, acid treating with hydrofluoric acid and hydrochloric acid, washing in water, baking, classifying and packing. Its advantages… Read More »