From the economic analysis of the table to see product quality inspection indicators, hydrofluoric acid, sulfuric acid, hydrochloric acid mixed acid process of the product quality is very stable. View the economic indicators show the economic effect is even greater. 

From the high purity graphite chemical purification process system, hydrofluoric acid, sulfuric acid, hydrochloric acid mixed acid method is the existing high purity graphite chemical purification process system important breakthrough and innovation. 

High-purity graphite purification (hydrofluoric acid, sulfuric acid, hydrochloric acid mixed acid method) process there is a more important feature, is used with the alkali acid grafting. Alkali acid method is widely used in the graphite industry mature technology, but the process can only be purified in the carbon → high carbon graphite, and hydrofluoric acid, sulfuric acid, hydrochloric acid mixed acid high purity graphite purification process and alkaline acid process of high carbon graphite Combination, it can fill the alkaline acid method of high carbon → high purity graphite this part of the blank, medium carbon → high carbon graphite with acid (recovery acid) method, high carbon → high purity graphite with hydrofluoric acid, sulfuric acid, hydrochloric acid mixed acid law. As the acid method is used to recover the acid, per ton of high-carbon graphite can save 500 ~ 600kg of hydrochloric acid. 

Hydrofluoric acid, sulfuric acid, hydrochloric acid mixed acid production of high purity graphite, not only for technological transformation, expansion project, the same applies to the new (should meet the graphite industry access conditions), more suitable for flotation plant → medium carbon → high Carbon → high purity graphite integration project.