According to the structure of graphite in nature, graphite ores are classified as crystalline (vein), flake and amorphous . Graphite is used mainly for foundry facings, refractories, lubricants, pencils, batteries, brake linings, bearings, conductive coatings and crucibles.
Graphite is used mainly for foundry facings, refractories, lubricants, pencils, batteries, brake linings, bearings, conductive coatings and crucibles. Graphite can easily be enriched by flotation because of its high natural hydrophobicity. There are several reports in the literature reporting the flotation of different graphite ores. In graphite flotation, hydrocarbons like kerosene, fuel oil, paraffin and diesel oil or ionic collectors like potassium amyl xanthate, dithiophosphate are generally used as collectors. Pine oil and methyl isobutyl carbinol are used as frothers and sodium silicate, quebracho and starch are used to depress gangue minerals.
Low grade graphite samples containing 12.2¨C13.1 % fixed carbon from Rajunagfena, Orissa, India have been investigated for characterisation and amenability to beneficiation. The graphite is of the well crystallised flaky variety, and is associated with orthoclase, quartz, plagioclase, biotite, garnet, sillimanite, kaolinite as dominant gangue minerals. The textures, microstructures and liberation of graphite and their implications in beneficiation are described in this paper. The optimum liberation size of the graphite was determined to be below 210 ¦Ìm Beneficiation studies indicated that a concentrate with 79% fixed carbon, at a recovery 80.1% can be achieved by cleaning the rougher concentrate five times in a conventional flotation cell. Almost similar grade and recovery can be obtained in two stages by column flotation.
The commonly used low grade graphite ore beneficiation equipment designed and manufactured by SBM company are graphite ore crusher(graphite ore jaw crusher, impact crusher, cone crusher), graphite ore grinding mills(ball mill, vertical roller mill, Raymond mill, super thin grinding mill), beneficiation equipment(flotation separator, magnetic separator, spiral classifier, concentrator, vibrating screen and so on). If you need, we can design a complete graphite ore production line according to your actual situation. If you want to know more detailed info, please feel free to contact us via our online quotation button.