钛渣中FeO对熔盐氯化过程的影响  

Effects of FeO in Titanium Slag on Molten Salt Chlorination

作　　者：苗庆东[1] 李开华[1] 陈爱祥 何安西[1] 李亮[1] Miao Qingdong Li Kaihua Chen Aixiang He Anxi Li Liang(State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Pangang Group Research Institu- te Co. , Ltd. , Panzhihua 617000, Sichuan, China Pangang Group Titanium Industry Co. , Ltd. , Panzhihua 617000, Sichuan, China)

机构地区：[1]攀钢集团研究院有限公司,钒钛资源综合利用国家重点实验室,四川攀枝花617000 [2]攀钢集团钛业有限责任公司,四川攀枝花617000

出　　处：《钢铁钒钛》2016年第6期18-23,共6页Iron Steel Vanadium Titanium

基　　金：国家重点基础研究发展计划(973计划)(项目号2013CB632606)

摘　　要：研究了不同FeO含量钛渣的化学及物相组成以及FeO含量对熔盐氯化过程放热量、收尘渣量及成分、熔盐成分和产品质量的影响。结果显示:钛渣中主要物相是黑钛石、金红石和硅酸盐玻璃体。随着FeO含量增大,钛渣熔盐氯化放热量、收尘渣比例、熔盐中的FeCl_3和FeCl_2含量、产品中FeCl_3含量和固含量均有所增大。高FeO含量用于熔盐氯化制备四氯化钛工艺可行,但对氯化过程熔盐成分和收尘渣成分影响较大,应通过调整物料配比、排盐制度和矿浆喷淋制度等予以解决。Chemical and phase compositions of the titanium slag with different FeO contents were analyzed, and the effects of FeO content on the heat release, quantity and compositions of collected slag, molten salts compositions and product quality in molten salt chlorination process were researched. The results show that the main phases of titanium slag are anosovite, ruffle and silicate vitreous. With increasing FeO content, the heat release, ratio of the collected slag, contents of FeCl3 and FeCl2 in the molten salts, contents of FeCl3 and solid in the products all increase for the chlorination process. It is feasible for preparation of TiCl4 by molten salt chlorination using titanium slag with high content of FeO. However, the compositions of molten salts and collected slag are evidently affected in the chlorination process. Thus, the ratio of materials, salt elimination system and slurry spray system should be adjusted to resolve the problems mentioned above.

关 键 词：钛渣 熔盐氯化 FEO含量 物相组成 熔盐成分 

分 类 号：TF823[冶金工程—有色金属冶金]