Chinese Journal of Applied Chemistry ›› 1995, Vol. 0 ›› Issue (1): 94-95.

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Preparation of Low-Sulfur Expansible graphite

Song Kemin, Lu Wenyi, Gao Shuying, Yan Qiuyan   

  1. Hehei Education, College, Shijiazhuang 050091
  • Received:1994-05-25 Revised:1994-08-23 Published:1995-02-10 Online:1995-02-10

Abstract: The low sulfur expansible graphite has been prepared using hydrogen peroxide asoxidant and a mixture of oxalic acid and nitric acid as exchnger,The optimum conditions forpreparation were:H2O2(30%):graphite=1:10(by weight),25℃, 60min,H2SO4(98%).The expansible graphite with expanding volume of 200mL/g contains only 0.39%sulfur.

Key words: low sulfur expansible graphite, preparation, hydrogen peroxide, sulfuric acid