熔盐氯化法制备粗TiCl_4过程热平衡控制研究  

Analysis on Thermal Equilibrium of Crude TiCl_4 Preparation by Carbochlorination in Molten Salt

作　　者：李亮[1,2] 贾要强 朱福兴[1,3] 邓攀 李开华[1] 刘大春[2] LI Liang;JIA Yao-qiang;ZHU Fu-xing;DENG Pan;LI Kai-hua;LIU Da-chun(Pangang Group Research Institute Co.Ltd., Panzhihua 617000, Sichuan, China;National Engineering Laboratory for Vacuum Metallurgy, Kunming University of Science and Technology, Kunming 650093, China;College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China)

机构地区：[1]攀钢集团研究院有限公司,四川攀枝花617000 [2]昆明理工大学真空冶金国家工程实验室,昆明650093 [3]成都理工大学材料与化学化工学院,成都610059

出　　处：《有色金属（冶炼部分）》2019年第5期24-27,49,共5页Nonferrous Metals（Extractive Metallurgy)

基　　金：四川省科技计划应用基础研究项目(2019YJ0687);攀枝花市科技计划项目(2017CY-G-5)

摘　　要：对TiO_2品位为74%的高钙镁钛渣物相组成及氯化行为、熔盐氯化生产粗四氯化钛过程的熔盐温度控制进行了分析。结果表明,在粗四氯化钛单炉产量为100t/d的条件下,通过合理调节返炉矿浆量,可将钛渣氯化过程的熔盐温度与混合炉气温度分别稳定控制在740～770℃与350～501℃,并产出平均固相含量4.06～4.1g/L的合格粗TiCl_4产品。Phase structural and chlorination behavior of titanium slag bearing high calcium and magnesium with TiO 2 grade of 74%, and thermal equilibrium of crude TiCl4 preparation from titanium slag were investigated.The results show that temperature of molten salts and mixed furnace can be controlled at 740~770 ℃ and 350~501 ℃ respectively, through reasonable adjustment of volume of mud return amount when crude titanium tetrachloride output is 100 t/d.Crude TiCl4 with average solid content of 4.06~4.1 g/L is obtained.

关 键 词：高钙镁钛渣 加碳氯化 熔盐 粗四氯化钛 

分 类 号：TF823[冶金工程—有色金属冶金] TF803