高钛型高炉渣中钛组分选择性富集与析出研究进展

Research Progress of Selective Enrichment and Precipitation of Titanium in High Titanium Blast Furnace Slag

基于含钛高炉渣综合利用的大量研究工作,对含钛高炉渣的利用现状及高钛渣中钛组分的富集和析出等进行了综述。钛渣提钛的利用主要有制取钛合金、酸处理、碱处理或高温碳化-低温氯化处理高钛渣以及利用选择性分离技术提取钛富集相。重点对高钛渣中富集相为钙钛矿相、金红石相和黑钛石相的结晶行为研究进展进行了介绍。含钛相从熔渣中有效地富集、分离并实现工业化生产,是高钛渣提钛利用研究的重点和方向。有效地提取高钛渣中分散的钛元素,对钛渣的综合利用具有重要的经济价值和实际意义。

Based on lots of research work on Ti-bearing blast furnace slag utilization, current situations of comprehensive utilization of Ti-bearing blast furnace slag and technologies of enrichment and precipitation of Ti in high titanium slag were summarized. The ways of titanium extraction from Ti-bearing slag mainly include titanium alloy production, acid treatment, alkali treatment or high-temperature carbonization and low-temperature chlorination of high titanium slag,and extraction of Ti-enriched phases by selective sepa- ration techniques. The research progress of crystallization behaviors of Ti enrichment phases such as per- ovskite, ruffle and anosovite in high titanium slag was emphatically introduced. The effective enrichment and separation of Ti-containing phases and industrial production are the research focus and direction. It is important to effectively extract Ti from high titanium slag, which has great economic value and practical significance for comprehensive utilization of Ti-bearing slag.