摘要
采用H2SO4浸出、软锰矿氧化石煤钒矿中的钒,考察了氧化剂量、酸用量、液固比、温度、时间对钒浸出率的影响。结果表明,石煤钒矿在钒锰物质量比为1∶2,固液比为1∶1,H2SO4用量为30%时,90℃下浸出10 h后,钒矿的晶体结构完全被破坏,钒的浸出率可达99.01%,锰的浸出率达98.32%。
Vanadium was extracted out of pyrolusite oxidizing stone coal vanadium ore by H2SO4 acid leaching. Manganese dioxide of pyrolusite was used as the oxidant. Effects of oxidant dosage, sulfuric acid mass concentration, liquid-solid ratio, leaching temperature, leaching time on vanadium leaching rate were investigated. The results showed that under the extraction conditions of amount of vanadium：amount of manangese was 1 ： 2, liquid-solid ratio was 1 ： 1, leaching time was 10 h, sulfuric acid mass concentration was 30% , leaching temperature was 90 ℃. The vanadium leaching rate could reach 99.01% ,the manga- nese leaching rate could reach 98.32%.
出处
《应用化工》
CAS
CSCD
2013年第7期1170-1173,1179,共5页
Applied Chemical Industry
基金
国家科技支撑计划项目(2012BAE06B04)
关键词
石煤钒矿
二氧化锰
氧化酸浸
stone coal
manganese dioxide
oxidizing acid leaching
