Abstract: Graphite is an important strategic resource，and China’s graphite resource reserves and production rank the first in the world. High purity graphite has excellent performance and graphite products are widely used. Purification of graphite is the premise and basis of graphite products application，therefore the performance and application of graphite products are directly affected by the purity of graphite. Graphite resource and production and consumption in China and the rest of the world are presented. The main methods for purification of graphite are discussed，and the research progress of graphite purification are reviewed from several aspects，including flotation method，alkali-acid processing method，hydrofluoric acid washing，chloridizing roasting and high temperature purification. After comparing the advantages and disadvantages of each method，the development direction and prospect of graphite purification is put forward. Grinding and flotation technology for protection of larger graphite flake，less fluoride or fluoride-free graphite purification and cost-effective high temperature graphite purification will be the new technologies in the future.

Key words: graphite, high purity graphite, purification process, technical advance

摘要： 石墨是重要的战略资源和我国的优势资源，其资源产量和储量均居世界第一；高纯石墨具有优异的性能，其制品在许多领域得到了广泛应用。石墨提纯是石墨制品应用的前提和基础，其纯度直接影响石墨制品的性能和应用。本文简要介绍了世界与我国石墨的资源特性和生产消费，论述了石墨提纯的主要方法，着重从浮选法、碱酸法、氢氟酸法、氯化焙烧法、高温法等5个方面详细介绍了石墨提纯工艺的技术现状，通过各方法的优缺点对比，展望了石墨提纯技术的发展方向，指出提纯技术将随着保护大鳞片的综合磨浮技术、少氟与无氟提纯的酸碱替代技术和实现优越性价比的高温提纯技术方向发展。

关键词: 石墨, 高纯石墨, 提纯工艺, 技术进展