摘要
研究了钛白废酸萃取提钪过程乳化的影响因素与消除方法.结果发现,TBP协萃体系是消除乳化现象的最佳体系.废酸液中的固体颗粒对萃取乳化有直接影响,在萃取操作前应进行预处理.萃取酸度过高或过低都会使金属元素发生水解而导致乳化,适合的H＋浓度应该在2.0～3.0 g/L.保持一定的萃取温度可以有效预防乳化.应对有机相进行纯化、并定期补充相应比例的有机相、甚至全部更换有机相来减少乳化.
Influence factors on emulsification during scandium extraction from titanium white waste acid and elimination method were investigated. The results show that TBP assisted extraction system is the best system to eliminate emulsification phenomenon. Titanium white waste acid calls for pretreatment due to effect of solid particle in waste acid on extraction. During extraction, either too high or too low acidity will cause hydrolysis of metal elements and leads to emulsification, thus the suitable H＋ concentration is 2.0- 3.0 g/L. Maintaining a certain temperature can effectively prevent emulsification. Organic phase should be purified, regularly supplemented, or even all replaced to reduce emulsification.
出处
《有色金属（冶炼部分）》
CAS
北大核心
2016年第12期48-50,共3页
Nonferrous Metals（Extractive Metallurgy)
基金
广西区直科技型企业科研成果转化资金项目(2013-1-1)
关键词
钛白废酸
萃取
乳化
处理方法
titanium white waste acid
extraction
emulsification
processing method
