复合絮凝剂在钢板酸洗液除硅工艺中的应用  

Application of composite flocculant for removal of silicon from pickling liquor of steel sheet

作　　者：陈存广[1] 邵慧萍[1] 郭志猛[1] 郝俊杰[1] 杨薇薇[1] 

机构地区：[1]北京科技大学新材料技术研究院粉末冶金研究所,北京100083

出　　处：《工业用水与废水》2010年第5期84-87,共4页Industrial Water & Wastewater

摘　　要：冷轧工艺酸洗液的除硅效果直接影响到副产品氧化铁粉的质量,由于含硅杂质的粒度小,直接采用机械分离的方法很难去除。通过添加阳离子和阴离子复合絮凝剂,利用正交试验研究了絮凝沉降法去除含硅杂质的工艺,研究结果表明复合絮凝剂可有效去除酸洗液中的含硅杂质,并且除硅效果显著。The efficiency of silicon removal from pickling liquor in cold rolling process affects the quality of the by-product： iron oxide powder.Since the silicon-containing impurity is characterized by very fine particle size,it can hardly be removed directly by mechanical method.Through adding cationic and anionic composite flocculant,the effect of flocculation sedimentation process on silicon-containing impurity removal was studied by orthogonal test.The results of the test showed that,composite flocculant could effectively remove the silicon-containing impurity from pickling liquor,and the silicon removal effect was remarkable.

关 键 词：除硅 絮凝沉降 复合絮凝剂 酸洗液 

分 类 号：X757.035[环境科学与工程—环境工程]