攀钢含钛高炉渣湿法提钛工艺  

Hydrometallurgical process for recovering titanium from titanium-bearing blast furnace slag in Panzhihua Steel Plant

作　　者：王浩然[1] 张延玲[1] 安卓卿 赵世强[1] 

机构地区：[1]北京科技大学钢铁冶金新技术国家重点实验室,北京100083

出　　处：《有色金属科学与工程》2016年第3期21-24,共4页Nonferrous Metals Science and Engineering

基　　金：国家自然科学基金重点资助项目(51234001)

摘　　要：酸浸法提钛工艺可以获得较高TiO_2含量的产物,但是该工艺所产生的酸浸液存在难回收的问题.采用碱浸法可以避免酸浸液回收的问题,但是该工艺流程比较复杂,钠盐的回收成本较高.酸碱法在理论上可以将含钛高炉渣转化为富钛料,然而该工艺流程相对复杂,工业应用还需要不断深入研究与完善.针对采用湿法工艺从攀钢含钛高炉渣中提钛的各项技术,从技术、经济、环保等方面进行对比分析,指出需要将湿法工艺与火法工艺联合,同时将一些外场冶金技术引入到含钛高炉渣的提钛分离过程中,从而有望高效、综合利用攀钢含钛高炉渣.High purity TiO2-containing product is prepared by acid leaching method. However, the pickle liquor recycling remains a difficult problem, which can be avoided by using the alkaline leaching method, but this process is complex and the recovering cost of sodium salt is a bit high. The acid-alkali method can change the Ti-bearing blast-furnace slag into rich-titanium material theoretically, while this process is complex too, which needs further study and perfection. A variety of pyrometallurgy technologies to recover titanium from ti-tanium bearing blast furnace slag are comprehensively reviewed and a comparative analysis is made from as-pect of technological, economic and environmental protection. It is pointed out that efficient and comprehen-sive utilization of titanium bearing blast furnace slag requires combining pyrometallurgy with hydro metallur-gical process, as well as some external field metallurgy technology.

关 键 词：含钛高炉渣 湿法冶金 提钛 酸浸 碱熔 

分 类 号：TF534.1[冶金工程—钢铁冶金] TF111.3