摘要
采用皂化P204有机相优化高酸多杂质含钒石煤浸出液萃取工艺。在萃原液pH=1.4、相比1∶2、有机相皂化率80%、搅拌时间8 min的条件下,钒单级萃取率可达92.31%,较未皂化有机相提高17.16个百分点。未皂化有机相逆流萃取平衡级数为6级,皂化后缩短至4级,铁离子的萃取率由11.49%降低至6.46%。对皂化后P204提高钒萃取率的原因进行了阐述。
Optimization of vanadium extraction process by saponified P2O4 from stone coal acid leaching solution with various impurity ions was studied. The results show that single-stage extraction rate of vanadium is 92.31% with 17.16 percent point higher than that of non-saponified under the optimum conditions including pH value of aqueous of 1.4, phase ratio of 1 ： 2, saponification percentage of organic phase of 80 %, and extraction time of 8 rain. Series of counter-current extraction of vanadium drop from six of saponified to four of non-saponified. Extraction rate of iron ion drops from 11.49% to 6.46%. The reason for saponification of P2O4 to improve vanadium extraction rate is elaborated.
出处
《有色金属（冶炼部分）》
CAS
北大核心
2016年第5期17-21,共5页
Nonferrous Metals（Extractive Metallurgy)
基金
国家自然科学基金资助项目(51474162
51404174)
教育部科学技术研究项目(213025A)
关键词
P204
皂化
萃取
钒
石煤
P204
saponification
extraction
vanadium
stone coal
