D_（401）螫合树脂在盐酸介质中对铂、钯的吸附性能及分离研究  

STUDY ON ADSORPTION AND SEPARATION OF PLATINUM AND PALLADIUM IN SOLUTION OF HYDROCHlORIC ACID BY D_(401)CHELATING RESIN

作　　者：李梦耀[1] 刘建[1] 

机构地区：[1]西安地质学院应用化学系

出　　处：《西安地质学院学报》1997年第2期87-90,共4页

摘　　要：本文研究了在ＨＣｌ介质中，Ｄ４０１（ＥＤＴＡ）螯合树脂对铂、钯的吸附性能。实验表明，在ｐＨ＝２～４范围内，树脂对钯有良好的吸附性能，饱和吸附量７０．５ｍｇＰｄ（Ⅱ）／ｇ—Ｒ。ＰＨ≥４时对铂不吸附；钯的负载柱可用［０．１ｍｏｌＴｕ（硫脲）＋０．５ｍｏｌＨＣｌ］／Ｌ混合液定量洗脱，洗脱率为９９．２％、获得了ｐＨ＝４盐酸溶液中树脂柱分离铂、钯的方法。in this paper, the adsorption properties and separation Pt (IV ) and Pd (E ) by D,,, chelating resin in a medium of HCI have been investigated. The results show that the resin can effectively adsorb palladium within the PH region of 2~4. The static saturated adsorption capacity of the resin is 70. 5 mg Pd (Ⅱ) /g-Resin. But when PH of the solution is equal to or greater than 4, it does not adsorb platinum. The saturated adsorption column of palladium can be quantitatively eluted with 0. 1mol. L-1 Tu-0. 5 mol, L-1 HCI mixed solution (Tu is Thiourrea for short) The percentage of elution is 99. 2%. A method of separating palladium and platinum at the medium of HCI (pH=4) has been estimated.

关 键 词：铂 钯 螫合树脂 吸附 分离 

分 类 号：O614.826[理学—无机化学] O614.823[理学—化学]