湿法冶金2017，Vol.36Issue(1)：28-32,5.DOI:10.13355/j.cnki.sfyj.2017.01.007
N235萃淋树脂吸附盐酸的热力学和动力学
Thermodynamics and Kinetics of Adsorption HCl Using N235 Levextrel Resin
毛振强 1邱玉珍 1肖敏 2杨幼明2
作者信息
- 1. 第一作者简介:毛振强 1991-),男,江西上饶人,硕士研究生,主要研究方向为稀有金属冶金.E-mail:maozhenqiang2010@126.com. 通信作者简介:杨幼明 1965-),男,江西九江人,硕士,教授,主要研究方向为稀有金属冶金.E-mail:yanguming@126.com.
- 2. 江西理工大学 冶金与化学工程学院,江西 赣州 341000
- 折叠
摘要
Abstract
Thermodynamics and kinetics of adsorption HCl using N235 levextrel resin were researched by static adsorptive method.The law of adsorption was discussed.The results show that the adsorption of N235 levextrel resin for HCl are in accordance with Langmuir and Freundlich isothermal adsorption equation but the former is better.The maximum adsorption amount of the levextrel resin for HCl is 0.367 2 mmol/g at the conditions of 323 K and HCl concentrate of 74.13 mmol/L.The thermodynamics parameters calculating are that ΔH=18.066 kJ/mol,ΔS=65.1 J/(mol·K),ΔG303K=-1.659 kJ/mol,ΔG308K=-1.985 kJ/mol,ΔG313K=-2.31 kJ/mol,ΔG318K=-2.636 kJ/mol based on the previous experiment data.It shows that the adsorption process of N235 levextrel resin for HCl is a endothermic(ΔH>0),increasing entropy(ΔS>0)and spontaneous physical adsorption(ΔG∈- 20~0 kJ/mol) process.Adsorption kinetics results show that the adsorption process corresponds to quasi two stage kinetic equation(R2>0.99) and is controlled by film diffusion.关键词
N235树脂/盐酸/吸附/热力学/动力学Key words
N235 resin/HCl/adsorption/thermodynamic/kinetic分类
矿业与冶金引用本文复制引用
毛振强,邱玉珍,肖敏,杨幼明..N235萃淋树脂吸附盐酸的热力学和动力学[J].湿法冶金,2017,36(1):28-32,5.
