从工业煤沥青中脱除锌、铝、铁的试验研究  

Removing of Zinc,Aluminum And Iron From Industrial Coal Tar Pitch

作　　者：徐庆鑫[1] 和晓才[1] 翟忠标[1] 陈家辉[1] 崔涛[1] 

机构地区：[1]昆明冶金研究院,云南昆明650031

出　　处：《湿法冶金》2014年第5期381-385,共5页Hydrometallurgy of China

摘　　要：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％。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 ℃ .

关 键 词：煤沥青 四氯化碳 杂质 脱除 

分 类 号：TQ522.65[化学工程—煤化学工程]