China has made a breakthrough in graphite purification technology, achieving a purity level exceeding 99.99995 percent. This development is crucial for producing materials used in high-tech machinery and equipment.

超高纯石墨指含碳量达99.99%以上的石墨，具有自润滑性好、导电性好、耐腐蚀耐高温、化学稳定性优良等特点。

A research team from China Minmetals Corporation, led by Wang Jionghui, is behind this breakthrough. The team developed a new purification process that significantly improves graphite purity from 95 percent to more than 99.99995 percent and can maintain this ultra-pure quality consistently.

王炯辉科研团队突破行业传统设计，联合业内领先装备制造企业自主研制开发连续式石墨纯化工艺及装备，通过物理化学提纯、低温高温连续提纯、超高真空提纯，多种技术组合的梯次提纯，将石墨纯度从95%提升到99.99995%以上，并保持产品质量稳定。

The researchers collaborated with several equipment manufacturing enterprises to develop and refine this graphite purification technology. Wang's team is also working on creating ultra-pure graphite products, including high-end negative electrode materials and carbon-based semiconductor graphite.

在超高纯石墨产品的应用上，王炯辉团队正在加快研发高端负极材料、核级石墨、以及半导体用石墨等碳基材料产品。

Graphite, a versatile form of carbon known for its properties such as lubrication, electrical conductivity, and resistance to erosion and high temperatures, is a crucial mineral for developing high-tech industries. China Minmetals Corporation, which possesses a major graphite reserve in Hegang City, Heilongjiang Province, operates a processing plant with an annual output of 200,000 tonnes.

难能可贵的是，合理的联合工艺路径使产品在生产成本上具有显著优势。中国五矿拥有全球较大的鹤岗云山石墨矿，已建成年产20万吨石墨选厂和深加工产业链。

Source:Xinhua

Editor: ChenDawei

Senior Editor: PangBo