Study on extraction of vanadium from high acid leach solution of stone coal using extractant HBL@101

被引：6
作者：
Li, Qinggang [1 ]
Xu, Liang [1 ]
Qi, Zhaoshu [1 ]
Zang, Li [1 ]
机构：
[1] Cent S Univ, Met Sci & Engn Sch, Changsha 410083, Hunan, Peoples R China
来源：
ADVANCES IN CHEMICAL, MATERIAL AND METALLURGICAL ENGINEERING, PTS 1-5 | 2013年 / 634-638卷
关键词：
Stone coal; Vanadium; Solvent extraction; HBL@101;
D O I：
10.4028/www.scientific.net/AMR.634-638.3248
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A new extractant HB@101 was used to directly extract vanadium from high acid leach solution of stone coal. The effects of acidity and Eh of feed, time, phase ratio and temperature on the extraction of vanadium were investigated. The extraction distribution isotherm was also obtained. The results showed that the extraction of vanadium reached 98% in single stage with A/O ratio of 1:1 at 35 similar to 45 C for 10 min. More than 99.7% of vanadium can be extracted in three-stage counter current extraction. The loaded organic can be easily stripped using NaOH solution. After pH adjustment, the strip liquor was used to precipitate vanadium by adding NH4Cl. The final product of V2O5 with purity of 98.7% can be obtained.
引用
收藏
页码：3248 / 3255
页数：8
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