蜜胺树脂在硝酸介质中对钯的吸附行为

THE ADSORPTION BEHAVIOR OF PALLADIUM(Ⅱ)ON MELAMINE RESIN IN NITRIC ACID MEDIUM

研究了在硝酸介质中蜜胺树脂对钯的吸附行为和吸附的影响因素。结果表明，在１ｍｏｌ·ｄｍ￣（－３）硝酸溶液中，存在一定量的氯离子（Ｃ１￣－）的情况下，蜜胺树脂对钥Ｐｄ（Ⅱ）的吸附率可达８０％以上。同时对蜜胺树脂和载有Ｐｄ（Ⅱ）的树脂作了红外光谱测定。

The adsorption of palladium(Ⅱ) on melamine resin from acldic nitrate medium andthe factors influenced adsorption have been studied. The results show that adsorption rate of Pd(Ⅱ)may be reached to 80%from lmol/dm￣3HNO_3 aqueous solution containing some chloride ion Cl￣- lnthis process,the adsorption of Pd(Ⅱ) is relatively selective。 The infrared spectra of melamine andmelamine loaded Pd(Ⅱ )was determined. The adsorption mechan ism has been discussed。