摘要
对高钛型高炉渣提钛所产生的含氯尾渣进行了分析,开展了提钛尾渣水洗除氯和高温煅烧除氯试验,研究了提钛尾渣除氯无害化处理工艺。试验结果表明:"直接水洗"、"微量加水煅烧"、"水洗—煅烧"和"多级水洗—煅烧"四种方法均可一定程度上除氯,其中多级水洗—煅烧工艺效果最好,能够有效除去提钛尾渣中的氯离子,使之达到国家建材相关质量标准(<0.05%),有望实现提钛尾渣在建筑行业的大规模有效综合利用。
The chloride-containing tailings produced in the process of titanium extraction from high titanium blast furnace slag were analyzed. For achieving the non-hazardous treatment,the technologies of chloride removal for tailings after extracting titanium by washing and high-temperature calcination were investigated. The results show that the 4 processes of washing,calcination with trace amount of water,washing-calcination and multistage washing-calcination all can remove chloride in the tailings to a certain content,of which the chloride is most effectively removed and the tailings are made satisfying the national construction industry standards by multistage washing-calcination process. It is expected that the tailings after extracting titanium can be extensively and synthetically utilized in construction industry by the technologies mentioned above.
出处
《钢铁钒钛》
CAS
北大核心
2014年第3期42-45,共4页
Iron Steel Vanadium Titanium
关键词
高炉渣
提钛
尾渣
氯离子
水洗
煅烧
blast furnace slag
titanium extracting
tailing
chloride
washing
calcination
