溶剂萃取法从RT培司副产废料中提取分离吩嗪  

Extraction and separation of phenazine from waste by-product of RT-base by solvent extraction

作　　者：梁青青 刘莉丽 宾凡淳 张颂培[1] LIANG Qing-qing;LIU Li-li;BIN Fan-chun;ZHANG Song-pei(College of Chemistry and Materials Engineering,Beijing Technology and Business University,Beijing 100048,China)

机构地区：[1]北京工商大学化学与材料工程学院,北京100048

出　　处：《应用化工》2021年第4期892-895,共4页Applied Chemical Industry

基　　金：国家自然科学基金资助项目(21503006);科技创新服务能力-杰青优青培育项目(19008020071)。

摘　　要：依据吩嗪与RT培司副产废料中其他组分溶解度差异,采用乙醇萃取法,按照废料/乙醇1∶4 g/mL的比例,将废料中易溶部分杂质分离;进一步用乙醇按萃余物/乙醇1∶12 g/mL的比例,将吩嗪、萃余色素加热溶解,同时添加与萃余物质量比为6%的活性炭,在82℃条件下脱色32 min,趁热过滤,除去活性炭及不溶性杂质。产品收率达55%,色泽明亮,纯度达98.5%以上。According to the difference of solubility between phenazine and other components in RT bass by-product waste,the soluble impurities in the waste were separated by ethanol extraction method according to the ratio of waste/ethanol 1∶4(g/mL);phenazine and colored raffinate were further dissolved in ethanol at the ratio of 1∶12(g/mL)of extraction residue/ethanol,and activated carbon with mass ratio of 6%was added to decolorize at 82℃for 32 min,remove activated carbon and insoluble impurities by hot filtration.The yield of the product was 55%,the color is bright,the purity was over 98.5%.

关 键 词：吩嗪 RT培司废料 溶剂萃取 

分 类 号：TQ530.21[化学工程—煤化学工程]