环氧树脂精制技术优化研究  

Study on optimization of epoxy resin refining technology

作　　者：冯雪峰 张琳玉 唐晓东[2] 吕颖荟 路丛 FENG Xuefeng;ZHANG Linyu;TANG Xiaodong;LV Yinghui;LU Cong(Nantong Xingchen Synthetic Material Co.,Ltd.,Nantong 226017,China;College of Chemistry and Chemical Engineering,Southwest Petroleum University,Chengdu 610500,China)

机构地区：[1]南通星辰合成材料有限公司,江苏南通226017 [2]西南石油大学化学化工学院,四川成都610500

出　　处：《石油化工》2023年第12期1663-1668,共6页Petrochemical Technology

基　　金：中国蓝星南通星辰合成材料有限公司项目(NTXC202110RD0001)。

摘　　要：采用高盐甘油废水和自制溶剂对环氧树脂和湿盐精制进行循环洗涤研究优化。实验结果表明,在树脂/盐水/自制溶剂质量比为1∶1∶1、洗涤温度50℃、洗涤时间30 min条件下,使用高盐甘油废水替代回用水,对粗树脂进行循环洗涤精制,-最大可循环洗涤24次,精制树脂Cl含量为49.3μg/g,甘油未检测出;可取消三效蒸发操作,盐水直接去甘油浓缩装置浓缩甘油。在自制溶剂/湿盐/盐水质量比为1∶1∶1、洗涤温度50℃、洗涤时间5 min条件下,循环洗涤5次,可得不含树脂的精制盐。与现有工艺相比,环氧树脂精制优化技术的废水排放量大大降低,取消了三效蒸发操作,溶剂用量和再生能耗分别下降33.33%和40%,实现了节能减排的目的。Optimization of epoxy resin and wet salt refining was studied by cyclic washing method with high salt glycerol wastewater and homemade solvent.The experimental results show that under the conditions of resin/brine/homemade solvent mass ratio 1∶1∶1,washing temperature 50℃,washing time 30 min and using high-salt glycerol wastewater instead of reclaimed water for refining of crude-resin by cyclic washing,the maximum number of cyclic washing can be 24,the Cl content of the refined resin is 49.3μg/g,and glycerol is not detected.The three-effect evaporation operation can be cancelled,and the brine can go directly to glycerol concentration device to concentrate glycerol.Under the conditions of homemade solvent/wet salt/brine mass ratio 1∶1∶1,washing temperature 50℃,and washing time 5 min,the refined salt without resin can be obtained by cyclic washing for 5 times.Compared with the existing process,the epoxy resin refining optimization technology has greatly reduced wastewater discharge,eliminated the three-effect evaporation operation,and reduced the solvent amount and regeneration energy consumption by 33.33%and 40%,respectively,thus realizing the purpose of energy conservation and emission reduction.

关 键 词：环氧树脂 高盐甘油废水 循环洗涤 节能减排 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]