含钛高炉渣回收钛的工艺研究  

The Technical Study on Titanium Recovery from Ti-bearing Blast Furnace Slag

作　　者：李小英[1,2,3] 彭建蓉 翟忠标 林琳[1,2,3] LI Xiao-ying;PENG Jian-rong;ZHAI Zhong-biao;LIN Lin(Kunming Metallurgical Research Institute,Kunming,Yunnan 650031,China;State Key Laboratory of Pressure Hydrometallurgical Technology of Associated Nonferrous Metal Resources,Kunming,Yunnan 650503,China;Yunnan Key Laboratory for New Technology of Beneficiation and Metallurgy,Kunming,Yunnan 650503,China)

机构地区：[1]昆明冶金研究院,云南昆明650031 [2]共伴生有色金属资源加压湿法冶金技术国家重点实验室,云南昆明650503 [3]云南省选冶新技术重点实验室,云南昆明650503

出　　处：《云南冶金》2018年第6期45-48,共4页Yunnan Metallurgy

摘　　要：采用加压酸浸法处理攀枝花地区含钛高炉渣,通过加压酸浸脱除钙镁,使TiO_2得到富集的钛工业原料。研究确定最佳工艺条件为:初始盐酸浓度18%,浸出温度140℃,浸出时间6 h,液固比L∶S=5∶1,在此工艺条件下,CaO脱除率98%,MgO脱除率96%,Fe脱除率85%,Al_2O_3脱除率78%,TiO_2损失率小于3%。The Ti-bearing blast furnace slag in Panzhihua region shall be treated by pressure acid leaching method,so that TiO2 can be enriched as the titanium industrial material. The confirmed optimal process conditions are: the initial hydrochloric acid concentration is 18%,the leaching temperature is 140℃,the leaching time is 6 h,the liquid-solid ratio L∶S=5∶1,under the above mentioned process conditions,the removal rate of CaO is 98%,of MgO is 96%,of Fe is 85%,of Al2O3 is 78%,the loss ratio of TiO2 is less than 3%.

关 键 词：含钛高炉渣 加压酸浸 钛渣 

分 类 号：TF823[冶金工程—有色金属冶金]