B-62交联F-46/EDA梳型树脂的合成及吸附性能
SYNTHESIS AND ADSORPTION PROPERTIES OF F-46/EDA PECTINATE RESIN CROSSLINKED BY B-62
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摘要: 以酚醛环氧树脂(F-46)、乙二胺(EDA)、甘油环氧树脂(B-62)为原料合成一种新型树脂,研究其对Cu2+,Ni2+,Zn2+和Co2+的吸附性能.结果表明,该树脂对Cu2+具有很好的吸附性能,吸附量可达1.29mmol·g-1;对Ni2+有一定的吸附性能,吸附量为0.23mmol·g-1;而对Zn2+和Co2+不吸附.该树脂可在Cu2+,Zn2+和Co2+等离子共存下选择吸附Cu2+.液膜扩散是吸附的主控步骤,可用Boyd膜扩散方程来描述.Abstract: By using novolac epoxy resin,ethylenediamine and glycerol epoxy resin as materials,a kind of new resin was synthesized and its adsorption properties for Cu2+,Ni2+,Zn2+ and Co2+ had been studied.The results showed that this resin has good adsorption capacities for Cu2+ with 1.29 mmol·g-1 and it has some adsorption capacities for Ni2+ with 0.23mmol·g-1.But it hardly has adsorption capacities for Ni2+ and Co2+.The resin has good adsorptioin selection for Cu2+ at the presence of Zn2+,Co2+.Liquid film diffusion was major controlling step of adsorption rate which can be described by G. E. Boyd equation.
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Key words:
- chelating resin /
- synthesis /
- adsorption /
- heavy metal ion
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