摘要
本文研究了三辛基氧化膦(TOPO)浸渍树脂在HCI介质中对金的分配。用原子吸收法测定了棚旨对金的吸附速率和等温吸附线,树脂对金的吸附率随温度的升高而降低。 根据吸附平衡的研究发现TOPO浸渍树脂吸附Au(Ⅲ)的反应按下式进行:
The distribution ratio of gold between trioctyl phosphine oxide impregnated resin and aqueous hydrochloric acid solution is investigated. The rate for the absorption and the isotherm for the absorption of AuCl4- ions on TOPO-impregnated resin are measured by flame atomic absorption spec-trophotometry. The absorption percentage of TOPO-impregnated resin decreases with the temperature rising.
From tht equilibrium study, it is found that AuCl4- ions is absorbed on TOPO-impregnated resin according to the following reaction:
2 TOPO+H+ + AuCl4-= (TOPO)2H+-AuCl4-
出处
《杭州大学学报（自然科学版）》
CSCD
1989年第4期426-434,共9页
Journal of Hangzhou University Natural Science Edition
关键词
三辛基氧化膦
金
浸渍树脂
trioctyl phosphine oxide
gold
lmpregnated resin
