2022-11-23
2023-02-08The chloride roasting method is to mix graphite with a certain reducing agent to bake at high temperature in specific equipment and atmosphere. The price in the material is transformed into a metal chloride with gas or condensed phase. Purified process.
Hydrofluoric acid is a strong acid, which can react almost with any impurities in the graphite, and graphite has good acid resistance. In particular, it can resist hydrofluoric acid. It determines that graphite can be purified with hydrofluoric acid. The main process of hydrofluoric acid method is mixed with graphite and hydrofluoric acid. The hydrofluoric acid and impurities response generate soluble substances or volatiles for a period of time. After washing and r2023-02-09Graphite hydrillinosteric acid method
2023-02-08(1) Graphite mining planning and coordination are not in place
2023-02-08Floating is a commonly used and important mineral method. Graphite has good natural floating. Basically, all graphite can be purified by floating methods. In order to protect graphite scales, most of the graphite flotation uses multiple sections of processes. Graphite flotation collecting agents are generally used for kerosene, with a dosage of 100 to 200g/t. The foaming agent is generally used with pine or butad ether, and the amount is 50 to 250g/t.
The alkaline acid method includes two reaction processes: alkali melting process and acid immersion process. The alkali melting process is to chemically react with the acidic impurities in the molten and graphite under high temperature conditions under high temperature conditions, especially silicon -containing impurities (such as silicate, silicone aluminate, quartz, etc.) to generate soluble salt, and then Remove impurities after washing and improve the purity of2023-02-08Graphite acid method
2023-02-07The world's natural graphite output in 2010 was 1.1 million tons. China graphite output is 800,000 tons (crystal graphite and cryptocrystalline graphite), accounting for 73%of the world's output. In the past 30 years, graphite production has ranked first in the world.
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