摘要：采用清洗法回收冷轧厂磁过滤物中的铁粉,研制一种专用清洗剂清洗含油铁粉,通过除去表面油污得到纯净的铁粉。结果表明,清洗剂为水基金属清洗剂,各组分的质量分数,壬基酚聚氧乙烯醚为0.7%,脂肪醇聚氧乙烯醚为0.5%,表面活性剂F为0.05%,Na₂SiO₃为2%,正丁醇为0.1%,乙二胺四乙酸为0.1%,水为96.55%;使用该清洗剂清洗冷轧厂磁过滤物中的含油铁粉后,得到的铁粉产品中Fe的质量分数为97.14%,铁粉的粒径为19.5 nm。

关键词：水基金属清洗剂;清洗法;纳米铁粉;回收

Abstract：Pure iron powders were recovered from magnetic filter products of cold rolling mill with prepared aqueous-base metal detergent to remove the emulsible oil on powders surface.The results show that mass fractions of detergent components are 0.7% of polyoxyethylene nonylphenol ether,0.5% of fatty alcohol-polyoxyethylene ether,0.05% of surface active agent F,2% of Na₂SiO₃,0.1% of n-butyl alcohol,0.1% of elhylene diamine tetraacetic acid and 96.55% of water.The iron powder products contain iron element with mass fraction of 97.14% after the greasy dirt is cleaned out from magnetic filter products with the detergent.The particle size of the iron powder products is 19.5 nm.

Keywords：aqueous-base metal detergent;cleaning;iron nano-powders;recover