The floatability of graphite is good, and the flotation method is currently used. Commonly used in coal flotation agent is oil, II oil, water glass, lime, etc. Because of graphite embedded in a large cloth, thus grinding fineness coarse, usually accounts for 45 to 60% -100 mesh. The flake graphite is mostly used in the flotation process of re-grinding and re-selecting the coarse-cut ore, that is, coarse grinding and rough selection are firstly carried out to obtain low-grade tip mines with a continuous body (grade of 40-50%), and then low-grade fines are obtained. middling regrinding, then chosen to be the final concentrate. regrinding number of 3-7, typically 3-4 times. the final concentrate grade is generally between 85-89% inhibition of pyrite, mica and other associated minerals. Can add lime, paste tip, water glass and other agents. In addition to flotation, electrostatic dressing can also be used. Japan has established an electric election experimental plant, but the processing capacity is small. Because the electrification needs to be dried and precision graded in the mine, the high-voltage power supply is difficult to manage in the humid environment, the micro-pull part is difficult to handle, and so on, there is no actual production. Recently It is reported that the effect of carbon graphite in electro-selective treatment is very good, and the concentrate grade can reach about 96%. The flake graphite can also be treated by air separation, but the recovery rate is not high. In the severely water-deficient areas, the wind can be used to initially enrich the graphite, and then the coarse concentrate is sent to the water-rich areas for selection, such as the Xinjiang Hami graphite mine. The wind selection and flotation joint process. Pressure Gauge,Oil Pressure Gauge,Air Pressure Gauge,Pressure Gauge Price HONGQI INSTRUMENT (CHANGXING) CO.,LTD , https://www.hongqi-instrument.com