A new technology for preparation of lower-sulfuric expandable graphite was presented, which used natural flake graphite as raw material, sulfuric acid and nitric acid as oxidant, and decanol as reducing agent.

• 研究了一种以天然磷片石墨为原料 ,硫酸和硝酸的混酸为氧化剂 ,癸醇为还原剂 ,制备低硫可膨胀石墨的新工艺。