钢铁钒钛2025，Vol.46Issue(6)：57-65,9.DOI:10.7513/j.issn.1004-7638.2025.06.006
钙化钒渣酸浸过程多组元浸出行为及影响规律
Multi-component leaching behavior and influence rule of calcified vana-dium slag in acid leaching process
摘要
Abstract
The effects of MFe content in vanadium slag,Ca/V molar ratio(n(CaCO3)/n(V2O3)),roast-ing temperature,and leaching pH on the leaching behavior of vanadium(V)and impurities(Mn,Fe,Cr,Mg,Ti,Si)were systematically investigated.The results show that V leaching efficiency can reach 91.68％under a condition of low MFe content,a Ca/V molar ratio of 1.0,roasting temperature of 900 ℃,and leaching pH of 2.8.The leaching efficiencies of Mn and Mg exhibit a similar trend:decreasing with the increase of MFe content or Ca/V ratio;being relatively stable at approximately 38％and 20％,re-spectively,in the roasting temperature range of 800-950℃ and leaching pH range of 2.2-3.0.Fe leach-ing efficiency correlates directly with MFe content and is suppressed by high roasting temperatures and high leaching pH;it is minimally affected by the Ca/V ratio and remains below 0.04％.The leaching ef-ficiencies of Cr,Ti,and Si all decrease with the increase of MFe content or roasting temperature;Cr leaching rate remains unaffected by the changes in the Ca/V ratio,while those of Ti and Si increase with a higher Ca/V ratio.Regarding leaching pH:Si leaching efficiency decreases with the increase of pH,and Ti leaching efficiency decreases,while Cr leaching efficiency remains stable at around 0.1％.关键词
钒渣/钒浸出率/杂质组元/浸出规律Key words
vanadium slag/V leaching rate/impurity components/leaching rule分类
矿业与冶金引用本文复制引用
余唐霞,温婧,平鑫浩,姜涛,张林,李月鹏,杨雄..钙化钒渣酸浸过程多组元浸出行为及影响规律[J].钢铁钒钛,2025,46(6):57-65,9.基金项目
国家自然科学基金(52374300,52174277,52204309) （52374300,52174277,52204309）
四川省科技计划项目(ZX20240709). （ZX20240709）
