高钛渣氧化焙烧行为研究.pdf

第25卷第4期
矿冶
2016年8月
INING METALLURGY
文章编号:1005-7854(2016)04-0041-04
高钛渣氧化焙烧行为研究
廖雪峰2刘钱钱胡途2陈菓3常晓东2陈沪飞2
张利波2彭金辉…23
(1.省部共建复杂有色金属资源清洁利用国家重点实验室,見明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)
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増加而明显下降,而杂质中的硫和碳在高温下与氧结合生成SO2、
CO和CO2逸出。
关键词:人造金红石;氧化焙烧;温度;品质
中图分类号:1TF823文献标志码:Adoi:10.3969/ J. issn.1005-7854.2016,04.010
EXPERIMENTAL INVESTIGATION ON OXIDATION ROASTING
OF HIGH TITANIUM SLAG
LIAO Xue-feng"LIU Qian-qian HU Tu" CHEN Guo
CHANG Xiao-dong CHEN Hufei ZHANG Li-bo PENG Jin-hui 2
(1. State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization
Kunming 650093, China
2. Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology
Kunming 650093, Chi
3. Key Laboratory of Resource Clean Conversion in Ethnic Regions, Education Department of
Yunnan, Yunnan Minzu University, Kunming 650500, China
ABSTRACT: Regarding quality requirements for synthetic rutile in the industry, the effeet of calcination tempera
ture on growth rate, Tio 2 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 te increase of the calcination temperature, the oxidation reaction happens more
easily, and the change of sample weight becomes more obvious. And the Ti0 content due to the increase of total
weight of sample shows a downward trend, the impurities of sulfur and carbon combine with oxygen generating SO
CO and CO, at high temperature
KEY WORDS: artificial rutile; oxidizing roasting; temperature; quality
收稿日期:2016-01-08
钛是一种重要的稀有高熔点金属,其合金的强
基金项目:国家自然科学基金资助(51404114;51504110)
作者简介:廖雪峰,硬士研究生,从事微波强化冶金研究
度可与高强度钢相比拟,密度却只有钢的58%,
通信作者:陈菓,教授。E-mail: guochen@ kmust.edu,cm
所以钛合金是一种轻型高强度金属结构材料。我国