脂肪酸甲酯乙氧基化物在带钢弱碱脱脂中的应用  

Application of FMEE in Weak Base Degreasing Process of Rolled Strip Steel

作　　者：郑岩 Zheng Yan(Shanghai Xihe Fine Chemical Co.,Ltd.,Shanghai 201620,China)

机构地区：[1]上海喜赫精细化工有限公司,上海201620

出　　处：《云南化工》2023年第1期125-128,共4页Yunnan Chemical Technology

摘　　要：轧制后的带钢在退火前需要在60~70℃的强碱条件下脱脂清洗,过多的使用碱剂会腐蚀带钢,产生碱雾,损害工作环境,残留的碱也会吸附在带钢表面消耗大量清水漂洗。为了减少带钢脱脂工艺强碱的使用量,将PO封端脂肪酸甲酯乙氧基化物(FMEE)作为脱脂剂的主体成分,复配阴离子型渗透剂伯烷基磺酸钠(PAS80),烷基醇酰胺(6501)、铁粉捕捉剂乙二胺二邻苯基乙酸钠(EDDHA-Na),并通过正交实验确定四种原料的最佳质量比为:m(FMEE)∶m(PAS-80)∶m(6501)∶m(EDDHA-Na)=3∶2∶1∶1。该脱脂剂与纯碱共同应用于带钢退火前脱脂,在弱碱性条件下即可获得良好的脱脂效果。The rolled strip steel is generally degreased under the condition of strong alkali of sodium hydroxide.The sodium hydroxide can not only corrode metals,but also produce alkali mist to damage the working environment.The residual alkali will be adsorbed on the surface of strip steel and it can be rinsed with plenty of clean water.In order to reduce the dosage of strong alkali used in strip degreasing process,PO end-capped FMEE was used as the main component of degreasing agent,anionic primary-alkyl sulfonate,ethydiaminedhephen acetic sodium and 6501 were compounded with FMEE.The optimal proportion of degreasing was determined by orthogonal experiment as 3:1:1:1.The degreasing agent and sodium carbonate were used in strip degreasing before annealing process,and good degreasing effect could be obtained under weak alkaline conditions.

关 键 词：PO封端 FMEE 脱脂 退火 纯碱 

分 类 号：TQ423[化学工程]