摘要
湿法提钒过程中,石煤钒矿中钒的价态影响钒的浸出率。为了解现有文献对石煤中五价钒描述不一致的原因,通过试验探讨了焙烧温度、焙烧时间等因素对石煤中五价钒含量的影响,发现含钒石煤有强还原性,能将五价钒转化为低价钒。试验表明,焙烧温度和焙烧时间对石煤中五价钒含量影响显著。
In the process of vanadium extraction in solution from stone coal, vanadium valence influences the leac- hing rate of vanadium. On the analysis of inconsistent reasons on heptavalent vanadium in stone coal described in the existing literature, calcinations temperature, calcinations time and other factors affecting the determined value of heptavalent vanadium in stone coal were experimentalist was found that stone coal containing vanadium with a strong reduction by heptavalent vanadium converted into low valets vanadium;Experiments show that calcinations tempera- ture and lasted time influenced the content of pentavalent vanadium in stone coal significantly.
出处
《矿产综合利用》
CAS
北大核心
2015年第6期49-52,共4页
Multipurpose Utilization of Mineral Resources
关键词
石煤钒矿
钒价态
焙烧
五价钒
Valence state of vanadium
Stone coal vanadium ore
Calcination
