3－氨甲基吡啶树脂的合成及五种氨基吡啶树脂对金铂吸附性的比较

Synthesis of 3-Aminomethylpyridine Resin and the Comparison of Sorption Property of Five Kinds of Aminomethylpyridine and Aminopyridine Resins for An(Ⅲ) and Pt(Ⅳ)

研究了反应物配料比３－ＡＭＰ／Ｃｌ（摩尔比）、反应温度与时间对大孔型３－氨甲基吡啶树脂（３—ＡＭＰＲ）性能的影响规律．在最佳合成工艺条件下制得３－ＡＭＰＲ的功能基含量为３．１６ｍｍｏｌ／ｇ树脂．３－ＡＭＰＲ对ＡｕＣｌ６（２－），ＰｔＣｌ６（２－），ＩｒＣｌ６（２－），ＰｄＣｌ４（２－），ＲｈＣｌ６（３－）的吸附容量分别为８００．８，３８７．８，３８６．３，１３３．０，１０５．５ｍｇ金属／ｇ树脂；配位比分别为１．２９，０．６３，０．６４，０．４０，０．３３。比较了３—ＡＭＰＲ、２－ＡＭＰＲ、４－氨基吡啶树脂（４－ＡＰＫ）、３—ＡＰＲ、２－ＡＰＲ五种树脂对ＡｕＣｌ４－、ＰｔＣｌ６（２－）的吸附性，其中３－ＡＭＰＲ为最佳。

The influences of molar ratio of reagents, reaction temperature and time on the quality ofmacroporous 3-aminomethylpyridine resin (3-AMPR) were investigsted. The functional group capacityof 3-AMPR synthesized under the optimum conditions is 3. 16 mmol FG / g resin. The sorption capacitiesof 3-AMPR for AuCl4-, PtCl6(2-), PdCl4(2-), RhCl6(3-) are 800.8, 387.8, 386.3, 133.0 and 105.5 mgmetal/ g resin, and the coordination ratioes are 1.29, 0.63, 0.64, 0.40 and 0.33, respectively, ThecomPgrisons of the sorption behavior among 3-AMPR, 2-AMPR, 4-aminopyridine resin (4-APR),3-APR and 2-APR fo t An(Ⅲ) and Pt(Ⅳ) were studied. 3-AMPR is the best resin among these fiveresins.