化工进展Issue(8)：3202-3206,5.DOI:10.16085/j.issn.1000-6613.2015.08.047
二步法氧化焙烧工业绿矾工艺
Oxidizing calcination industry copperas by two-step method
张海平 1郝建璋 2黎建明 3丁跃华 3李宏扬1
作者信息
- 1. 昆明理工大学冶金与能源工程学院，云南昆明 650024
- 2. 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
- 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
- 折叠
摘要
Abstract
This paper studied a two-step method of oxidizing calcination process in order to improve the utilization efficiency of copperas and achieve the energy-saving and environmental production. The analysis of copperas’ drying and dehydration curves and TG-DSC (thermogravimetric analysis and differential scanning calarmeutry) curves showed that the best drying temperature was 110℃,and most of the product was FeSO4·7H2O. Then the dried products were calcinated at the different temperature. The influences of the calcination temperature on the product recovery,residual sulfur content,the compound morphology of Fe and the distribution of sulfur in the flue gas was investigated. The results showed that when the temperature was 800—900℃,air flow rate was 120L/h,and the constant temperature time was 90min,the amount of residual sulfur in the calcinated product was 0.33% and total Fe was more than 60%. Therefore,the final product could be added into the sinter as iron materials.关键词
二步法/氧化焙烧/绿矾Key words
two steps/oxidizing roasting/copperas分类
化学化工引用本文复制引用
张海平,郝建璋,黎建明,丁跃华,李宏扬..二步法氧化焙烧工业绿矾工艺[J].化工进展,2015,(8):3202-3206,5.
