摘要
测定了HW吸附树脂—TMB对模拟氰化液中Au(Ⅰ)的静态吸附选择性。结果表明Sn(Ⅱ)、Pb(Ⅱ)及一些常见阴离子基本上不影响HW吸附树脂的吸附性能而Ag(Ⅰ),Cu(Ⅱ)、Zn(Ⅱ)及Ni(Ⅱ)则不同程度地影响HW吸附树脂—TMB的吸附性能,其选择系数有如下顺序:KAu(CN)_2^-·Ni(CN)_4^(2-)>>KAu(CN)_2^-·Zn(CN)_4^(2-)>KAu(CN)_2^-·Cu(CN)_4^(2-)>KAu(CN)_2^-·Ag(CN)_2^- 一般来说,TMB的加入量增大可以增加HW吸附树脂吸附Au(Ⅰ)的能力。
The static adsorption selectivity of adsorbent HW-TMB for Au(I) inlsimulated cyanide solution were measured.Results showed that Sn(Ⅱ),Pb(Ⅱ)and the common anions basically didn't affect the adsorption capacities of adsorbent Hw-TMB, while Ag(I),Cu(Ⅱ),Zn(Ⅱ)and Ni(Ⅱ)could affect it in varying degrees. The sequence of the selective coefficients was as follows:
KAu (CN)2-·Ni(CN)42- >KAu (CN)2-·Zn(CN)42->KAu (CN)2-·Cu(CN)42->KAu (CN)2-·Ag(CN)2-In many cases, the addition of more TMB could incrase the adsorption capacities of adsorbent HW for Au(I).
出处
《黄金》
CAS
北大核心
1992年第8期36-40,共5页
Gold
基金
国家自然科学基金
关键词
吸附
选择性
金
氰化
TMB
adsorption selectivity
Au(1)
cyanidation
