笼形聚氨肟树脂的研究—碱处理对吸附性能的影响  

STUDIES ON "CAGE" POLYAMIDOXIME ADSORBENTS EFFECT OF ALKALI TREATMENT ON THE ADSORPTIVE CAPACITY

作　　者：吴锦远[1] 杨超雄[1] 

机构地区：[1]中国科学院广州化学研究所

出　　处：《离子交换与吸附》1994年第6期546-551,共6页Ion Exchange and Adsorption

基　　金：广东省自然科学基金

摘　　要：研究减处理的笼形聚氨肟树脂（ＢＣＡＯ）对二价金属离子的吸附行为。吸附结果若生成２：１配合物，得Ｍｇ２＋、Ｃａ２＋、Ｂａ２＋、Ｍｎ２＋、Ｃｏ２＋、Ｎｉ２＋、Ｚｎ２＋、Ｃｄ２＋、Ｐｂ２＋、Ｃｕ２＋离子的吸附效率分别是２７．１、２９．２、３０．４、２９．０、２７．１、３０．８、４５．０、３９．８．６０．３、６２．１％，Ｈｇ２＋离子的吸附效率高达１０５％，表明在吸附过程中同时生成２：１配合物和１：１配合物，并有可能发生吸留作用．ＢＣＡＯ树脂也吸附金属络阴离子，对ＭｎＯ、Ｃｒ２Ｏ、ＰｔＣｌ吸附效率分别是７３．４、２６．２、１９．２％，但不吸附ＣｒＯ离子．研究了Ｚｎ２＋、Ｃｄ２＋、Ｈｇ２＋和ＭｎＯ、Ｃｒ２Ｏ离子在ＢＣＡＯ树脂上的吸附动力学．讨论了ＢＣＡＯ树脂对金属阳离子和络阴离子的吸附机理．The adsorption equilibrium of Mg2+, Ca2+, Ba2+, Mn2+,Co2+, Ni2+, Zn2+, Cd2+, Hg2+.Cu2+and Pb2+with alkali treated cage polyamidoxime adsorbent (BCAO) were measured The adsorptive efficiency were found to be 21.7, 29.2, 30.4, 29.0, 27.1, 30.8, 45.0, 39.8, 105,62.1 and 60.3 percent, respectively. The calculation is based on the assumption that the 2:1 complex is formed as a result or adsorption. Moreover, many complex anions can be adsorbed by BCAO. The adsorptive efficerncy of MnO4-, Cr2O and PtCl ions were determented to be 73.4, 26.2 and 19.2 percent, respectively. It is found that the complex anion, CrO, is unable to be adsorbed by BCAO practically.The adsorptive kinetics of Zn2+, Cd2+, Hg2+, MnO and Cr2O ions uptake with BCAO were investigated, the adsorption mechanism was discussed.

关 键 词：笼形树脂 聚偕氨肟 碱处理 吸附 聚氨肟 

分 类 号：O633.2[理学—高分子化学] O647.33[理学—化学]