The Adsorption Performance Study of Acid Leaching Residue of Asbestos Tailings
Acid leaching residue of asbestos tailings was calcined at 600℃. N2 adsorption and desorption isotherms of this modified mineral material were measured at low temperature and the adsorption characteristic of acid leaching residue as well as the mechanism were discussed. The specific surface area of acid leaching residue was calculated by BET model, and meanwhile micropore and mesopore structural parameters were calculated by means of ‘t-Plot’ and BJH theory, respectively. The results showed that the N2 adsorption-desorption isotherms of acid leaching residue were in line with I pattern of the IUPAC isotherm criterions. The residue contained well-developed micropore and mesopore system. The adsorption performance of of Pb2+ in simulated wastewater for the acid leaching residue was also performed. The results indicated that a predominant chemisorption, which could be fitted by Langmuir isotherm, occurs on the materials.
Calcination acid leaching residue pore size distribution adsorption
Juntao CHEN Yuexin HAN Shufang DING Shuilin ZHENG
Northeastern University, Shenyang 110004,China Heilongjiang Institute of Science and Technology, Har Northeastern University, Shenyang 110004,China Heilongjiang Institute of Science and Technology, Harbin 150027,China China University of Mining and Technology (Beijing Campus), Beijing 100083,China
国际会议
11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)
青岛
英文
246-252
2010-09-25（万方平台首次上网日期，不代表论文的发表时间）