钢铁厂盐酸酸洗废液的分析研究  

Analysis and Research on Hydrochloric Acid Pickling Waste Liquid in Iron and Steel Plant

作　　者：汪双双 黄生威 陆贻春 石海信 WANG Shuajigshuang;HUANG Shengwei;LU Yichun;SHI Haixin(College of Petroleum and Chemical Engineering,Beibu Gulf University,Qinzhou 535011,China;Huanke Water Processing Company of Guangxi,Qinzhou 535011,China.)

机构地区：[1]北部湾大学石油与化工学院,广西钦州535011 [2]广西钦州环科水处理公司,广西钦州535011

出　　处：《北部湾大学学报》2020年第2期25-28,共4页Journal of BeiBu Gulf University

基　　金：广西高校重点学科自主项目:非苯二氮类镇静催眠药物与血清蛋白作用机制研究(2017KLOG15);钦州市科学研究与技术开发计划项目:烷基化废酸液的完全利用技术与示范(20189913).

摘　　要：在钢材生产和加工行业,每年都有大量的酸洗废液排出,这种废酸液的杂质较多,处理工艺复杂。该类废酸液是一种存在大量沉淀的黄色溶液,有轻微的气味。就酸洗废液的性质和成分,包括废酸液的密度、HCl的浓度、固态不溶物的量以及铁的各种形态及含量进行了实验研究。结果表明:废液中酸的浓度为1.73 mol·L^-1,总铁的含量高达87.00 g·L^-1,Fe^3+离子的含量为55.70 g·L^-1,Fe^2+离子的含量为31.30 g·L^-1,均以氯化物的形式存在。In the steel production and processing industries,a lot of waste hydrochloric acid is discharged every year.There are many impurities in this waste solution,therefore the treatment processes are relatively complicated.This kind of waste hydrochloric acid is a yellow solution with a large amount of precipitations and a slight odor.Properties and composition of the waste acid solution,including its density,the concentration of HCl,quantity of solid insoluble matters and iron ion,are studied by experiments.The results show that the concentration of HCl is about 1.73 mol·L^-1,the content of iron is about 87.00 g·L^-1.Component analysis and research of the waste hydrochloric acid has certain reference value for optimization of industrial waste acid treatment processes.

关 键 词：酸洗废液 成分 固态不溶物 

分 类 号：O661.1[理学—分析化学]