某粘土型石煤钒矿直接酸浸提钒研究  

Extraction of Vanadium from a Clay-Type Stone Coalby Direct Acid Ieaching

作　　者：史松 吴金鑫 田战武 樊青林 SHI Song;WU Jinxin;TIAN Zhanwu;FAN Qinglin(Shaanxi Jincheng Outstanding Vanadium Industry Co.,Ltd.,Shangluo 726400,Shaanxi,China;Shaanxi Jinfeng Vanadium Energy Storage Co.,Ltd.,Shangluo 726403,Shaanxi,China)

机构地区：[1]陕西金诚杰出钒业有限责任公司,陕西商洛726400 [2]陕西省金峰钒储能有限责任公司,陕西商洛726403

出　　处：《中国钼业》2025年第1期46-50,共5页China Molybdenum Industry

摘　　要：以陕西商洛某粘土型石煤钒矿为原料,采用直接酸浸工艺进行了提钒试验研究,试验结果表明,该粘土型石煤以V3+形式存在,主要赋存于铝硅酸盐中,采用直接酸浸提钒工艺,可将该石煤中的钒转浸出来;同时,在一定助浸剂用量条件下,磨矿细度、硫酸用量、浸出时间和浸出温度是影响该石煤提钒的主要因素;在磨矿细度为-0.074mm(55%),硫酸用量26%(质量分数),浸出时间12 h,浸出温度90℃,助浸剂用量4%(质量分数),液固比1.5∶1的酸浸条件下,钒的浸出率可达89.80%。In this experiment,vanadium extraction test was carried out by direct acid leaching process with a clay-type stone coal vanadium ore in Shangluo,Shaanxi province as raw material.The test results show that the clay-type stone coal exists in the form of V 3+,which mainly occurs in aluminosilicate.The vanadium in the stone coal can be transferred by direct acid leaching process;At the same time,the fineness of grinding,the amount of sulfuric acid,the leaching time and the leaching temperature are the main factors affecting the vanadium extraction from the stone coal under the condition of a certain amount of leaching agent.Under the conditions of grinding fineness of-0.0750 mm(55%),sulfuric acid dosage of 26%(mass fraction),leaching time of 12 h,leaching temperature of 90℃,leaching aid dosage of 4%(mass fraction)and liquid-solid ratio of 1.5∶1,the leaching rate of vanadium can reach 89.80%.

关 键 词：石煤钒矿 直接酸浸 钒浸出率 

分 类 号：TF841.3[冶金工程—有色金属冶金]