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Table 2 Coking yield of each heat treatment process

From: Properties of synthetic graphite from boric acid-added pitch: performance as anode in lithium-ion batteries

Amount of boric acid (wt%) PFO → Pitch yielda (%) Pitch → Coke yieldb (%) Coke → Graphite yieldc (%) Total yieldd (%)
0 26.3 70.2 99.3 18.33
1 11.2 68.5 79.4 6.09
3 11 77.8 83.5 7.15
5 14 61.6 75.1 6.48
7 14.2 72.7 65.9 6.80
  1. aStep 1, 420 °C, 3 h, N2 atmosphere
  2. bStep 2, 900 °C, 1 h, N2 atmosphere
  3. cStep 3, 2500 °C, 3 h, vacuum atmosphere
  4. dPFO → graphite yield