TiO2的微波法制备及其相转变  

PREPARATION OF TiO_2 WITH MICROWAVE HEATING AND INVESTIGATION OF ITS PHASE TRANSFORMATION

作　　者：郑孝英[1] 何奥希 陈晋[2] 冯康露 李毅恒[2] 陈菓[2,3] ZHENG Xiao-ying;HE Ao-xi;CHEN Jin;FENG Kang-lu;LI Yi-heng;CHEN Guo(Kunming Metallurgy College, Kunming 650093, China;Key Laboratory of Green-Chemistry Materials in University of Yunnan Province,Yunnan Minzu University, Kunming 650503, China;State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization,Pangang Group Research Institute Co., Ltd., Panzhihua 617000,Sichuan, China)

机构地区：[1]昆明冶金高等专科学校,昆明650093 [2]云南民族大学,云南省高校绿色化学材料重点实验室,昆明650503 [3]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

出　　处：《矿冶》2018年第6期38-41,共4页Mining And Metallurgy

基　　金：国家自然科学基金资助项目(51504110,51404114);云南省高校科技创新团队支持计划资助

摘　　要：以云南某高钛渣为原料,提出一种微波加热制备高品质人造金红石产品的新工艺,并对产物进行表征与分析。结果表明,高钛渣的主要成分是铁钛氧化物的固溶体,二氧化钛主要以锐钛矿形式存在,含少量金红石相。经过微波焙烧后,锐钛矿衍射峰消失,金红石衍射峰增强。高钛渣颗粒表面比较光滑、平整,微波焙烧后得到短棒状体金红石。A new method with microwave heating was proposed to prepare synthetic rutile TiO2 applying high titanium slag as raw materials.The crystal structure and microstructure were characterized.The results show that main phase of high titanium slag is anatase accompanied with a small amount of rutile phase.After microwave roasting,the diffraction peak of anatase has disappeared,and the peak of rutile rises.The surface of high titanium slag is smooth.After microwave heating,some irregular rod-like particles,which belongs to morphology of rutile TiO2,appears.

关 键 词：微波加热 人造金红石 高钛渣 

分 类 号：TF823[冶金工程—有色金属冶金]