金红石型TiO2制备及提质技术的研究进展  

Research on the Progress of Preparation and Purification of Rutile-type Titanium Dioxide

作　　者：康娟雪 张铭媛 普婧 黄秀兰[1,2] 段利平[1,2] 高磊 陈菓[1,2,3] KANG Juanxue;ZHANG Mingyuan;PU Jing;HUANG Xiulan;DUAN Liping;GAO Lei;CHEN Guo(Key Laboratory of Green-Chemistry Materials in University of Yunnan Province,Yunnan Minzu University,Kunming 650500,China;Joint Research Centre for International Cross-border Ethnic Regions Biomass Clean Utilization in Yunnan,Yunnan Minzu University,Kunming 650500,China;Key Laboratory of Unconventional Metallurgy,Ministry of Education,Kunming University of Science and Technology,Kunming 650093,China)

机构地区：[1]云南省高校绿色化学材料重点实验室,云南民族大学,云南昆明650500 [2]云南省跨境民族地区生物质资源清洁利用国际联合研究中心,云南民族大学,云南昆明650500 [3]非常规冶金教育部重点实验室,昆明理工大学,云南昆明650093

出　　处：《工业加热》2020年第3期31-35,共5页Industrial Heating

基　　金：国家自然科学基金项目(51504110);中国博士后科学基金(2017M623012)。

摘　　要：金红石型TiO2是钛工业生产中重要的原料,探究一种高效、清洁的人造金红石的制备方法已成为世界相关行业研究的热点。对二氧化钛晶型的转变以及人造金红石的制备及提质技术的研究结果表明:还原-氧化法,反应过程简单,适合含铁量较高的钛渣;亚熔盐法,反应过程中的酸碱均能循环利用;选择性析出技术,能够改变钛渣的矿相结构使钛渣中杂质转变为易析出物相;酸浸法,可利用废酸处理钛渣制备金红石。而通过对钛铁矿进行预处理、改性处理及机械活化等方式则可以提高金红石的品位。Rutile TiO2 is an important raw material in titanium industrial production.Exploring an efficient and clean method for preparing synthetic rutile has become a hotspot in the relevant industries in the world.The research results on the transformation of titanium dioxide crystal form and the preparation and extraction technology of synthetic rutile show that the reduction-oxidation method has a simple reaction process and is suitable for tianium slag with high iron conten.The sub-molten salt method,the acid and alkali in the reaction process can be recycled;the selective precipitation technology can change the ore phase structure of titanium slag so that impurities in titanium slag can be transformed into easily precipitated phase;acid leaching method can use waste acid to treat titanium slag to prepare rutile.the grade of rutile can be improved by pretreatment,modification and mechanical activation for titanium ore.

关 键 词：金红石型TIO2 还原-氧化法 亚熔盐法 选择性析出技术 酸浸法 提质 

分 类 号：TF823[冶金工程—有色金属冶金]