文献类型：期刊文献

中文题名：铜离子浮选动力学的单泡吸附模型

英文题名：Single Bubble Model for Kinetics of Cupric Ion Flotation

作者：孙经一[1];田久旺[1];王世容[1];吴树森[1]

机构：[1]华东理工大学化学系

年份：1995

卷号：9

期号：3

起止页码：225

中文期刊名：高校化学工程学报

外文期刊名：Journal of Chemical Engineering of Chinese Universities

收录：CSTPCD;;EI(收录号：1998014018219);Scopus;CSCD:【CSCD2011_2012】；

基金：国家自然科学基金

语种：中文

中文关键词：离子浮选;铜离子;单泡模型;吸附机理

外文关键词：Ionic floatation,Cupric ion, Single bubble modle

摘要：本文就离子浮选提出了单泡吸附模型，并据此从理论上导出了适应于吸附动力学控制的方程式：（Ｃ_０－Ｃｔ）＋ａ／２×１ｎ（Ｃ_０／Ｃ_ｔ）＝Ａｔ然后以ＮａＬＳ浮选Ｃｕ￣（２＋）离子的实验验证了上式，结果颇为一致。通过上式计算了离子浮选的传质系数ｋ、吸附与解吸系数ｋ_１、ｋ_２。研究了气流量与ｐＨ对传质系数的影响，发现在ｐＨ＝５．０时传质系数为最大，并讨论其产生的原因，最后提出了相应的吸附机理。
A single bubble adsorption model for ionic flotation was suggested. Based on that,the equation of kinetics adapted in the condition of kinetic control was derived, and was confirmed by the result of the experiment,floating cupric ion by NaLS. (C0-Ct) + a/2 × In(C0/Ct) =At According to this equation,the mass transfer coefficient for ionic flotation K,adsorption and desorption coefficients, K1 and K2, were calculated respectively. The influence of gas flow rate,acidity of solution to the mass transfer coefficient was studied.It was indicated that the optimum acidity is 5.0. Finally the adsorption mechanism was suggested.