D001树脂对酸性硫脲溶液中金银的交换性能研究  

STUDY ON THE EXCHANGE PROPERTIES OF GLOD AND SILVER IN ACIDIC THIOUREA MEDIUM BY D001 RESIN

作　　者：闫英桃[1] 刘建[1] 谢华 

机构地区：[1]西安地质学院应用化学系,西安10054

出　　处：《离子交换与吸附》1998年第1期53-58,共6页Ion Exchange and Adsorption

摘　　要：研究了D001型大孔强酸性阳离子交换树脂从H2SO4-Tu（硫脲）溶液中，富集回收Au（Ⅰ）、Ag（Ⅰ）的性能。结果表明在pH2．0左右，树脂对Au（Tu）+2、Ag（Tu）2+有良好的吸附性能，AU和Ag的交换容量分别为61，18mg／g-R和99．11mg／g-R。负载柱上的An、Ag可分别用NaCN－NaOH和H3BO3－NaOH－Na2S2O3洗脱液定量洗脱。In this paper, the sorption and exchange properties of An(1)－ thiourea and AG(1) － thiourea complex by D001 macroporous strong acidic resin from wead acid solution have been investigted. The results show that the resin can effectively adsorb Au(Tu)2+ and Ag(Tu)2+ ions (Tu = thiourea) at pH2. 0, and the static saturated adsorption capacity of resin can reach 61. 18 mg/g － resin and 99. 11 mg/g － resin for An and Ag respectively. The An(Tu)2+ and Ag(Tu)2+ adsorbed can be quantitavely eluted with NaOH － NaCN or Na2S2O3 － H3BO3 － NaOH, respectively.

关 键 词：大孔 阳离子交换树脂 硫脲 金 银 湿法冶金 

分 类 号：TF831.032[冶金工程—有色金属冶金] TF832.032