高钛渣氧化焙烧行为研究  

EXPERIMENTAL INVESTIGATION ON OXIDATION ROASTING OF HIGH TITANIUM SLAG

作　　者：廖雪峰[1,2] 刘钱钱 胡途[2] 陈菓[3] 常晓东[2] 陈沪飞 张利波[2] 彭金辉[1,2,3] 

机构地区：[1]省部共建复杂有色金属资源清洁利用国家重点实验室,昆明650093 [2]昆明理工大学冶金与能源工程学院,昆明650093 [3]云南省高校民族地区资源清洁转化重点实验室,云南民族大学,昆明650500

出　　处：《矿冶》2016年第4期41-44,60,共5页Mining And Metallurgy

基　　金：国家自然科学基金资助(51404114,51504110)

摘　　要：针对钛工业对人造金红石品质的要求,进行高钛渣常规氧化焙烧试验,考察不同焙烧温度下高钛渣样品重量变化、二氧化钛品位、脱硫和脱碳效果。结果表明,高钛渣在常规焙烧条件下主要发生低价金属氧化物的氧化反应,随着焙烧温度的提高,氧化反应越容易进行,因此样品重量增重越明显,同时二氧化钛品位由于样品总重量的增加而明显下降,而杂质中的硫和碳在高温下与氧结合生成SO2、CO和CO2逸出。Regarding quality requirements for synthetic rutile in the industry, the effect of calcination tempera- ture on growth rate, TiO2 content, sulfur content and carbon content of high titanium slag was studied. The results show that the oxidation reaction of low-valent metal compounds of high titanium slag has been occurred under the conventional roasting, and with the increase of the calcination temperature, the oxidation reaction happens more easily, and the change of sample weight becomes more obvious. And the TiO2 content due to the increase of total weight of sample shows a downward trend, the impurities of sulfur and carbon combine with oxygen generating SO2 , CO and CO2 at high temperature.

关 键 词：人造金红石 氧化焙烧 温度 品质 

分 类 号：TF823[冶金工程—有色金属冶金]