摘要
采用XRD和SEM分析钛精矿热处理前后的相变过程,XRD分析结果表明,钛精矿中主要是一些如Fe Ti O3、Fe1.1Ti0.9O3、Fe1.04Ti0.96O3、Fe+2Ti O3等复杂的固溶体,在800℃煅烧3 h时出现新相Mg0.208Fe0.955Ti0.833O3。在1000℃煅烧3 h此时相对结晶度也发生了明显变化;SEM扫描电镜结果表明,在800℃煅烧3 h条件下颗粒疏松度提高,表面出现较多裂纹。
The phases of ilmenite were by analyzed XRD and SEM. XRD results showed that the main phases of original ilmenite were some complex solid solutions, such as FeTiO3 , Fe1. 1 Ti0. 9 O3 、 Fe1. 04Ti0. 96 O3, Fe＋2TiO3, After heat treatment for 3 h at 800 ℃, Mg0.208 Fe0.955 Ti0.833 O3 was found. Crystallinity had also undergone tremendous changes at 1000 ℃ for 3 h. SEM results showed that the ilmenite particles were more lax and more surface cracks at 800 ℃ for 3 h.
出处
《广州化工》
CAS
2015年第4期109-110,170,共3页
GuangZhou Chemical Industry
关键词
钛精矿
热处理
物相分析
ilmenite
heat treatment
phase change
