钢铁钒钛2025，Vol.46Issue(3)：18-24,7.DOI:10.7513/j.issn.1004-7638.2025.03.004
基于磷酸盐辅助浸出的石煤短流程提钒工艺研究
Research on short-process vanadium extraction technology from stone coal based on phosphate-assisted leaching
朱振洲 1吴金朋 1高晨龙 2王伟 1焦树强1
作者信息
- 1. 北京科技大学冶金与生态工程学院,绿色低碳钢铁冶金全国重点实验室,北京 100083
- 2. 大力储能技术湖北有限责任公司,湖北襄阳 441035
- 折叠
摘要
Abstract
Aiming at the mineral phase analysis and traditional treatment process of a stone-coal vana-dium mine in Hubei,a short-flow vanadium extraction process with phosphate-assisted leaching was de-veloped.The vanadium extraction process using sulfuric acid curing-phosphate-assisted leaching-solvent extraction-vanadium precipitation using ammonia water was carried out for vanadium extrac-tion experiments.The effects of water leaching pH,phosphorus-iron molar ratio,leaching time and tem-perature on the leaching rate of vanadium and iron were investigated,respectively.The results showed that the cured sample was obtained by curing the raw material with particle size less than 0.074 mm at 200 ℃ and the dosage of 0.15 mL/g of concentrated sulfuric acid for 2 h.The cured sample could leach up to 93.44％of vanadium and 38.19％of iron under the experimental conditions of aqueous leaching pH 2.5,phosphorus-iron molar ratio of 1.5∶1,leaching time of 1 h,and leaching temperature of 70 ℃.A powdered vanadium pentoxide product with purity greater than 99％was successfully prepared by us-ing P204 extraction and sulfuric acid stripping for 2-stage extraction and stripping,combined with am-monia vanadium precipitation process.This process improves the leaching rate of vanadium and provides a new technical route for vanadium extraction from stone coal.关键词
石煤提钒/除铁/萃取/沉钒Key words
vanadium extraction from stone coal/iron precipitation/extraction/vanadium precipitation分类
矿业与冶金引用本文复制引用
朱振洲,吴金朋,高晨龙,王伟,焦树强..基于磷酸盐辅助浸出的石煤短流程提钒工艺研究[J].钢铁钒钛,2025,46(3):18-24,7.
