Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4769346 | Hydrometallurgy | 2017 | 6 Pages |
Abstract
In this study, two new adsorbents, D301-g-EDAPGMA and D301-g-THIOPGMA, were obtained successfully on the basic of chemically modified D301 resin using ethylenediamine and thiourea. The adsorption, recognition and recovery properties of these two adsorbents for AuCl4â were studied through batch method. The experimental results showed that these two adsorbents possess strong adsorption ability and excellent selectivity for AuCl4â, and pH has a great influence on the adsorption capacity in the studied pH range. The maximum adsorption capacity of D301-g-EDAPGMA and D301-g-THIOPGMA for AuCl4â reaches 298 and 326 mg·gâ 1 at pH of 2, respectively. D301-g-EDAPGMA and D301-g-THIOPGMA possess very high selectivity coefficients for AuCl4â and these two adsorbents can be used to recover AuCl4â selectively from gold-bearing chloride solution. The extraction rate of these two adsorbents for AuCl4â could reach 98%. D301-g-EDAPGMA and D301-g-THIOPGMA have excellent regeneration property, and the consecutive adsorption-desorption experiments showed that they could be reused almost without any loss in the adsorption capacity.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Fu-Qiang An, Min Li, Rui-Yan Wu, Tuo-Ping Hu, Jian-Feng Gao, Zhi-Guo Yuan,