膜分离除杂工艺在腈纶生产上的应用研究  

Application of membrane separation impurity removal process in PAN production

作　　者：袁华斌[1] 金珍[2] 

机构地区：[1]中国石油兰州石化公司化纤厂,甘肃兰州730060 [2]中国石化齐鲁石化公司炼油实业部,山东淄博755434

出　　处：《石化技术与应用》2002年第6期385-387,391,共4页Petrochemical Technology & Application

摘　　要：结合NaSCN一步法腈纶生产工艺 ,对比了同类装置的几种除杂工艺 ;针对腈纶生产除杂工艺要求进行了中试实验 ,结果表明 ,膜分离除杂工艺对腈纶溶剂 (1 3 %NaSCN稀溶液 )中的杂质如二价离子、有机杂质及低聚物等有较好的脱除作用 ,可部分替代现有萃取除杂工艺 ;同时 ,探讨了几种膜分离除杂工艺如蒸发馏出液的净化、溶剂蒸发预浓缩等在腈纶生产上的应用情况。The impurity removal process was tested combined with the one-step process for PAN fiber and several removal processes were compared.The results showed that the membrane separation had good effect on impurity of NaSCN solution,and the extraction process could be replaced by membrane process.The application of membrane separation impurity removal process,such as the purification of distillate,preconcentration in solvent evaporation,was discussed.

关 键 词：膜分离 杂质 腈纶 

分 类 号：TQ342.31[化学工程—化纤工业]