CAJ | 학술논문

采用正交试验法对隐晶质石墨进行了混合酸法提纯实验研究。研究了混合酸和石墨的液固比、氢氟酸体积含量、反应温度、反应时间对隐晶质石墨固定碳含量的影响，从而确定隐晶质石墨提纯的最佳工艺参数及影响隐晶质石墨固定碳含量的主要因素。结果表明，当混合酸和石墨的液固比为3.5 mL/g，氢氟酸体积含量为30%，反应温度为50℃，反应时间为3 h时，提纯后的隐晶质石墨固定碳含量最高，为98.82%。
채용정교시험법대은정질석묵진행료혼합산법제순실험연구。연구료혼합산화석묵적액고비、경불산체적함량、반응온도、반응시간대은정질석묵고정탄함량적영향，종이학정은정질석묵제순적최가공예삼수급영향은정질석묵고정탄함량적주요인소。결과표명，당혼합산화석묵적액고비위3.5 mL/g，경불산체적함량위30%，반응온도위50℃，반응시간위3 h시，제순후적은정질석묵고정탄함량최고，위98.82%。
This article studied the puriifcation process of aphanitic graphite using the mixed acid method based on orthogonal experiment,and researched the effects of liquid-solid ratio of acid and graphite, the ratio of hydrolfuoric acid content, the reaction temperature and the reaction time on the ifxed carbon contend of aphanitic graphite, thereby, the optimal process parameters of the aphanitic graphite puriifcation and the main factors inlfuencing aphanitic graphite’s ifxed carbon content can be found. The outcome shows that when the liquid-solid ratio of acid and graphite is 3.5 mL/g, the ratio of hydrolfuoric acid content is 30%, the reaction temperature is 50℃and the reaction time is 3 h, the puriifed aphanitic graphite contains the highest ifxed carbon content of 98.82%.