High -carbon graphite extraction method, flotation method is one of the most benefit of high -carbon graphite with low energy consumption and reagent loss and lowest cost of energy consumption and reagent loss in mineral purification. However, when the floating method is used, the graphite can only achieve unlimited progress. Regarding scales -shaped graphite, not only will it be unbuttoned to separate it, but it is not conducive to maintaining the large scales of graphite. To obtain high carbon -containing high carbon -based graphite, pure graphite is needed to use chemical method.

(1) Pure method of high carbon alkaline acid. The carbon content after the purification of alkaliic acid method can reach more than 99 %. It has the characteristics of less one -time investment, high product grade, and strong process adaptability. It also has strong generality. The purity of non -metal mines can accept the benefits of alkaline acid method. The alkaline acid method is the most common essential for use in my country today. Essence

(2) High -carbon graphite chloride and roasting method. The low roasting temperature and smaller consumption of chloride roasting method have greatly reduced the manufacturing cost of graphite. At the same time, the carbon content of graphite products is related to the treatment of the use of usage. Compared with the recycling of chloride roasting method The rate is higher. Strong corrosiveness, high requirements for equipment, strict demand, must be dealt with properly.

The biggest advantage of the high temperature method is that the carbon content of the product is relatively high, up to 99.995%, the equipment is expensive, the one -time investment is more. In addition, the high electricity bill increases production costs. The harsh production conditions also make the application scope of this method extremely limited. Several methods of graphite purification have their own advantages and disadvantages.