摘要
本文通过交联聚丙烯酸与水杨酰胼反应制得水杨酰脘树脂I.树脂I对Au^(3+)的吸附容量最高达1.92mmol/g(378mgAu^(3+)/g),对Pd^(2+)为0.48mmol/g(51mgPd^(2+)/g).吸附在树脂上的Au^(3+)和Pd^(2+)可以用硫脲酸性溶液洗脱.回收率分别为99.5%和97.9%.
A macroporous polyacrolein-salicylic hydrazon resin (Ⅰ) has been prepared by the reaction of 4.5% DVB crosslinked polyacrolein-styrol with salicylic hydrazin. The resin ( Ⅰ ) have adsorption capacity of 1.97mmol Au3+/g ( 378mg Au8+/g ) and 0.48mmol Pd2+/g ( 51mg Pd2+/g ) determined by the static method after contacting with the solution of HAuCU and PdCU (pH = l) for 24h. The gold and palladium ions adsorbed on the resin ( Ⅰ ) can be eluted by aqueous thiourea-HCl solution with the recovery of 99.5% for Au and 97.9% for Pd.
出处
《冶金分析》
CAS
CSCD
北大核心
1993年第3期10-15,共6页
Metallurgical Analysis
关键词
水杨酰腙
螯合树脂
交联
金
Macroporous crosslinked polyacrolein-styrol resin. Salicylic hydrazon chelating resin. Synthesis, Gold, Palladium
