Adsorption of Soluble Metal Ions from Red Mud by Modified Activated Carbon
Activated carbon was employed as the adsorption carrier for the metal ions in HCl solution of red mud,a solid waste produced in alumina industry.To improve the adsorption capacity to valuable metal ions,the activated carbon was modified by chemicals including HNO3,H2O2,H2SO4,H3PO4,NH3,Na2CO3,and tri-butyl phosphate (TBP).It was found that the modifications contributed the high adsorption capacity to almost all metal ions we focused on.In the case of TBP,remarkably higher adsorption capacity and selectivity of Sc3+ was observed.The correlation between the surface areas,IR spectra of those chemically modified activated carbons and adsorption was schemed.
Activated carbon Chemical modifier Red mud Scandium
Hualei Zhou Dongyan Li Guozhuo Gong Yajun Tian Yunfa Chen
State Key Laboratory of Multi-phase Complex System,Institute of Process Engineering,Chinese Academy State Key Laboratory of Multi-phase Complex System,Institute of Process Engineering,Chinese Academy
国际会议
The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))
长沙
英文
1541-1544
2007-05-10（万方平台首次上网日期，不代表论文的发表时间）