用还原—氯化法处理钛精矿制备富钛料试验研究  

Research on Preparing of Titanium-rich Material Using Ilmenite by Reduction-chlorination Process

作　　者：邵斌斌 丁伟中[1,3,2] 谈定生[1,3,2] 尚兴付 郭曙强[1,3,2] 

机构地区：[1]上海大学省部共建高品质特殊钢冶金与制备国家重点实验室,上海200072 [2]上海大学材料科学与工程学院,上海200072 [3]上海市钢铁冶金新技术开发应用重点实验室,上海200072

出　　处：《湿法冶金》2018年第1期14-19,共6页Hydrometallurgy of China

摘　　要：针对氧化还原条件下获得的铁金属化率为92.5%的还原钛精矿,研究了采用FeCl_3溶液选择性浸出铁获取富钛料,考察浸出过程中各变量对铁浸出效果的影响,并对优化条件下获得的浸出液进行离子膜电解再生浸出剂。结果表明:控制液固体积质量比10∶1,在搅拌速度400r/min、浸出剂中Fe^(3+)总量与还原矿料中金属铁总量的比值R=2.3、室温、浸出1h条件下,铁浸出率为98%以上,获得TiO_2品位为76.2%的富钛料;以阴离子交换膜作隔膜,浸出液与FeCl_2溶液分别作阳极液和阴极液进行电解,浸出剂得到再生并获得金属铁。The selectively leaching reduced ilmenite which metallization ratio of iron about 92. 5% obtained from optimized oxidization-reduction process was studied using ferric chloride solution as lixiviant for preparing titanium-rich material. The effects of different variables on leaching of iron were examined. The regeneration of leaching agent FeC13 from leachate under the optimal leaching conditions by ion exchange membrane electrolysis was also investigated. The results show that the leaching of iron is more than 98% and the titanium rich material with 76.2% TiO2 was obtained under the conditions of room temperature, the ratio of liquid-to-solid of 10 ： 1, the stirring speed of 400 r/min,R of 2.3 and leaching for 1 hour. Then,ion-exchange membrane electrolysis is conducted using the leachate as anode solution and the ferrous chloride solution as cathode solution. The lixiviant FeCl3 is regenerated and electrolytic iron is acquired.

关 键 词：钛精矿 还原—氯化铁法 浸出 离子交换膜 电解再生 

分 类 号：TF803.2[冶金工程—有色金属冶金] TF823