摘要
不锈钢渣是不锈钢生产过程中产生的有毒废渣,包括初炼渣和精炼渣,其特殊性在于其含有水溶性致癌物质Cr6+,并且在渣的堆放过程中一直持续着Cr3+向Cr6+的转化,严重污染环境。介绍了高温硅铁熔融还原法、湿法及固化法对不锈钢渣脱毒原理,分析了不锈钢渣在烧结、返回炼钢、制备微晶玻璃及烧制水泥等方面的资源化利用现状。
Stainless steel slag produced in the process of stainless steel smelting contains electric arc furnace(EAF) slag and argon oxygen decarburization(AOD) slag.There is water-soluble carcinogenic element Cr6+ in the slag.Cr3+ transforms to Cr6+ continuously when the slag is stockpiled.The detoxification principles of hyperthermia ferrosilicon smelting reduction method,wet method and solidification method are summarized.The comprehensive utilization technologies of the stainless steel slag in sintering,recycling steelmaking,producing glass-ceramic and cement are discussed.
出处
《湿法冶金》
CAS
北大核心
2012年第1期5-8,共4页
Hydrometallurgy of China
基金
陕西省自然科学基金资助项目(2010JM7010)
陕西省教育厅科研计划资助项目(09JK530)
关键词
不锈钢渣
解毒
资源化
stainless steel slag
detoxification
comprehensive utilization