摘要
针对目前焙烧提钒法产生环境污染、耗能高和转化率低等问题,研究了用复合钠制剂亚熔盐法分解钒矿石的影响因素,通过正交实验分析了影响因素的主次关系,考察了液固比、氯盐加入量、反应时间等因素对钒浸取率的影响。结果表明,复合钠制剂初始浓度为70%,液固比为5∶1,反应时间为2.5 h,氯盐比为45,此条件下钒的浸取率可以达到90%以上。采用亚熔盐法浸取钒可以解决目前焙烧提钒中存在的一些弊端,为湿法提钒找到了一个新途径。
Considering that the recovering V205 by roasting leads to some serious problems such as environment pollution, high energy consumption and low conversion efficiency at present, the influencing factors of leaching vanadium from ore with the composite sodium agent are studied in this paper by sub-molten salt method. The investigation involves many hands including analyzing the primary and secondary relations of these factors by orthogonal test, and further researching the effects of liquid-to-solid ratio, the adding content of chloride salts and reaction time on vanadium leaching efficiency. The results show that the leaching efficiency of V205 is higher than 90% in the condition of agent concentration 70%, liquid-to-solid ratio 5 ： 1, the ratio of chloride salts 45 and reaction time 2.5 h. Taking sub-molten salt method can resolve some problems to recover V205 caused by roasting, and provide a new way for extracting V205 from wet process.
出处
《钢铁钒钛》
CAS
2008年第2期1-4,共4页
Iron Steel Vanadium Titanium
关键词
钒
亚熔盐
提取
复合钠制剂
正交实验
vanadium
sub - molten salt
leaching
composite sodium agent
orthogonal test
