蒸发法分离甲苯和聚乙烯的生产工艺  

Process for Separating Toluene and Polyethylene by Evaporation Method

作　　者：李宁宇 甘胜华 丁杨惠勤 李红彬 张乐杰 LI Ning-yu;GAN Sheng-hua;DING-YANG Hui-qin;LI Hong-bin;Zhang Le-jie(Shanghai Joyou Chemical Engineering Co.Ltd.,Beijing Branch,Beijing 100025,China;SUMEC Complete Equipment&Engineering Co.Ltd.,Nanjing 210018,Jiangsu,China)

机构地区：[1]上海聚友化工有限公司北京咨询分公司,北京100025 [2]江苏苏美达成套设备工程有限公司,江苏南京210018

出　　处：《合成纤维》2019年第12期48-50,55,共4页Synthetic Fiber in China

摘　　要：在超细纤维生产过程中需使用甲苯作为减量处理溶剂。介绍了采用多次蒸发浓缩的方法从减量处理生成的甲苯废溶剂中回收提取甲苯、分离聚乙烯熔体的工艺,最终达到节能降耗、环保生产的目的。Toluene is widely used as a solvent for weight reduction treatment in superfine fiber production process. The process of recovering and extracting toluene and separating polyethylene melt from toluene waste solvent produced by decrement treatment by multiple evaporation and concentration is introduced. Finally, the purpose of energy saving and consumption reduction, environmental protection production are achieved.

关 键 词：超细纤维 甲苯回收 蒸发浓缩 聚乙烯 

分 类 号：TQ319[化学工程—高聚物工业]