For meager coal oxidation in K2C03 medium with 15% acetic acid as promoter, the yield of CA increases from 27.0% (daf) to 35.3% (daf).

• 贫煤在K_2CO_3介质中外加15%25乙酸促进剂氧化，CA产率由27.；0%25(daf)提高到35