三苯基氧化膦萃淋树脂对金的吸附性能和机理的研究  

Study on Adsorbing Properties and Mechanism of TPPO Levextrel Resin for Gold

作　　者：程圭芳[1] 林苗[2] 

机构地区：[1]华东师范大学化学系,上海200062 [2]中国纺织大学纺织化学工程系,上海200051

出　　处：《中国纺织大学学报》1999年第2期22-25,共4页Journal of China Textile University

摘　　要：从动力学和热力学的角度探讨了三苯基氧化膦(TPPO)萃淋树脂对金的吸附,考察了它吸附金时的吸附速率、吸附反应级数、热焓和吸附容量,得出TPPO 萃淋树脂对金的吸附是单分子层的化学吸附,初步认为符合Langmuir吸附理论.此树脂在酸性条什下对金的最大吸附量为42mg(Au)/g(干树脂).TPPO levextrel resin can be used to separate and concentrate gold. The adsorbing properties and mechanism of TPPO levextrel resin for gold in acidic solution have been investigated. The influences of the acidity, time and temperature on the distribution ratio D have been studied. The maximum adsorbing amount and other adsorption parameters of the resin are also determined. It is proposed that the adsorption mechanism of this resin for adsorbing gold in acidic solution is in agreement with Langmuir' s adsorption isotherm.

关 键 词：萃淋树脂 金 吸附剂 三苯基氧化膦 TPPO 

分 类 号：O614.123[理学—无机化学] O647.33[理学—化学]