CAJ | 학술논문

研究了用四氯化碳溶解工业煤沥青脱除锌、铝、铁，考察了煤沥青粒度、液固体积质量比、反应时间、反应温度、溶解次数等对锌、铝、铁脱除率的影响，确定了最佳工艺条件。试验结果表明：在煤沥青粒径150μm、液固体积质量比6∶1、反应温度为室温（20～25℃）、反应时间4 h、溶解反应2次条件下，煤沥青中的锌、铝、铁能有效去除，煤沥青纯度达99．999％；通过蒸馏法回收四氯化碳，温度控制在120℃，四氯化碳回收率达96％。
연구료용사록화탄용해공업매력청탈제자、려、철，고찰료매력청립도、액고체적질량비、반응시간、반응온도、용해차수등대자、려、철탈제솔적영향，학정료최가공예조건。시험결과표명：재매력청립경150μm、액고체적질량비6∶1、반응온도위실온（20～25℃）、반응시간4 h、용해반응2차조건하，매력청중적자、려、철능유효거제，매력청순도체99．999％；통과증류법회수사록화탄，온도공제재120℃，사록화탄회수솔체96％。
Removing of zinc ,aluminum and iron with carbon tetrachloride from industrial coal tar pitch was studied .Influence of particle size of coal tar pitch ,the ratio between liquid volume to solid mass , reaction time ,temperature and dissolution times on removing of zinc ,aluminum and iron were examined .T he results show that under the optimal conditions of coal tar pitch particle size of 150μm , the ratio between liquid volume to solid mass of 6 ∶ 1 ,reaction time of 4 h ,room temperature and dissolution 2 times ,zinc ,aluminum and iron in coal tar pitch can be removed effectively and high-purity coal tar pitch which purity is 99 .999% is obtained .The carbon tetrachloride can be recovered by distillation at 120 ℃ .