Vanadium(V)reduction by using a by-product of the yellow phosphorus industry

查看全文 作　　者：Baibin [1]Yang;Shihong [1]Chen;Haowen [1]Ren;Yang [1]Qiu;Chong [1]Chen;Yong [1]Guo;Chunhui [1]Luo;Qiang [1]Zhao;Wei [2]Yang

机构地区：[1]School of Chemical Engineering,Sichuan University,Chengdu 610065,China;[2]State Key Laboratory of Hydraulics and Mountain River Engineering,College of Water Resource&Hydropower,Sichuan University,Chengdu 610065,China

出　　处：《Chinese Journal of Chemical Engineering》索引2023年第62卷第10期,共9页

基　　金：supported by the National Natural Science Foundation for Young Scientists of China(22108185,51906168,52276208). 摘　　要：Release of vanadium(V)from industry has threatened the environment and human health.In this paper,a removal method of vanadium(V)is proposed using a by-product of the yellow phosphorus industry(phosphorus-iron)as a reducing agent.The thermodynamics analysis shows that the Gibbs free energy is always negative from 0 to 100℃,indicating a spontaneous process.Effect of the phosphorus-iron slag/sulfuric acid dosage and temperature on the removal efficiency is comprehensively studied,and the kinetics parameters are calculated based on a quasi-first order reaction kinetics model.Results indicate that vanadium(V)can be entirely reduced by using phosphorus-iron slag,the frequency factor and apparent activation energy are 3.23×10^(9)min^(-1)and 64.50 kJ.mol^(-1) for vanadium(V)reduction.Based on above results,a lab-scale reactor is constructed and achieves a removal efficiency of~100%and a treatment capacity of 200 ml vanadium(V)solution(2 g.L^(-1))within 3 h.This work demonstrates the feasibility of vanadium(V)reduction using phosphorus-iron slag as a reducing agent in applications. 关键词：VANADIUM Phosphorus-iron slag THERMODYNAMICS KINETICS REDUCTION

相关文献

参考文献（41）
引证文献（0）
耦合文献（10）

参考文献(41)

耦合文献(10)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Vanadium(V)reduction by using a by-product of the yellow phosphorus industry

参考文献(41)

耦合文献(10)

用户提示