A research team from China Minmetals Corporation has developed a purification technology to achieve graphite with a purity rate of more than 99.99995%, which is important for producing materials used in high-tech machinery and equipment.

Led by Wang Jionghui, the team of researchers has significantly increased graphite purity from 95% and can continuously maintain the purification process to ensure this ultra-pure quality.

The team has collaborated with several equipment manufacturing enterprises to develop the graphite purification process.

Graphite, a form of carbon with the characteristics of lubrication, electrical conductivity, erosion and high-temperature resistance, is a superior mineral resource in China and is vital for the development of high-tech industries.

China Minmetals Corporation owns a major graphite reserve in Hegang city in northeast China's Heilongjiang province, where it has built a graphite mineral processing plant with an annual output of 200,000 tonnes of graphite.

Wang's team has carried out research for the development of ultra-pure graphite products, such as high-end negative electrode materials and carbon-based semiconductor graphite.

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