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Table 5 Proximate and ultimate analyses of the coal sample on air dried basis

From: Biorefinery lignosulfonates as a dispersant for coal water slurry

Proximate analysis (wt%)

 Inherent moisture

7.23 ± 0.11

 Ash

8.02 ± 0.08

 Volatile matter

35.04 ± 0.16

Ultimate analysis (wt%)

 C

81.35 ± 0.13

 H

4.72 ± 0.04

 O

11.66 ± 0.08

 N

0.88 ± 0.08

 S

0.51 ± 0.04