钒铬溶液离子交换法提钒研究  

Research on Vanadium Extraction from Vanadium-chromium Solution by Ion-exchange

作　　者：高官金[1,2] 彭毅[1] 曹宏斌[2] 

机构地区：[1]攀钢集团研究院有限公司钒钛资源综合利用国家重点实验室,四川攀枝花617000 [2]中国科学院过程工程研究所湿法冶金清洁生产技术国家工程实验室,北京100190

出　　处：《钢铁钒钛》2015年第5期1-5,共5页Iron Steel Vanadium Titanium

摘　　要：根据现有钒渣钠化提钒工艺的特点，巧妙规避钒、铬分离难题，提出了钒铬液离子交换法选择性提钒技术：选用阴离子树脂从高浓度含铬钒液中选择性吸附部分钒，交换余液返钠化提钒主流程继续生产氧化钒产品（冶金级）。分别研究了树脂型号、pH、反应时间与树脂吸附钒铬的关系，结果表明：将D201树脂用硫酸钠转型，在8．5〈pH〈10条件下，反应30～60min可选择性吸附钒，含钒树脂经NaOH溶液解吸，沉钒、煅烧即制得纯度达99．83％的氧化钒产品。According to the characteristics of vanadium extraction from vanadium slag,selective extraction of vanadium from vanadium-chromium（ V-Cr） containing solution by ion exchange was put forward to evade V-Cr separation problem. Partial vanadium was selectively adsorbed from high concentration of vanadium solution containing chromium by anion resin,and the raffinate was returned to produce vanadium oxide（ metallurgical grade） by the main process of vanadium extraction. The effects of resin type,p H and reaction time on the adsorption of vanadium and chromium were studied. The results show that with D201 resin modified by sodium sulphate,vanadium can be selectively adsorbed under 8. 5 p H 10 and30 ～ 60 min of reaction time. Vanadium pentoxide with purity of 99. 83% can be obtained through desorption of the vanadium-containing resin by sodium hydroxide solution,vanadium precipitation and calcination.

关 键 词：钒铬液 离子交换 提钒 

分 类 号：TF841.3[冶金工程—有色金属冶金]