核化学与放射化学
覈化學與放射化學
핵화학여방사화학
HE HUAXUE YU FANGSHE HUAXUE
2014年
6期
340-345
,共6页
莫辉艳%王劲松%张恒军%虢清伟%谢水波%皮艾南%蔡炎达
莫輝豔%王勁鬆%張恆軍%虢清偉%謝水波%皮艾南%蔡炎達
막휘염%왕경송%장항군%괵청위%사수파%피애남%채염체
杯芳烃%磷氧%萃取%U(Ⅵ)
杯芳烴%燐氧%萃取%U(Ⅵ)
배방경%린양%췌취%U(Ⅵ)
calixarene%phosphinoxide%extraction%U(Ⅵ)
通过取代反应,合成了对叔丁基杯[4]、[6]芳烃磷氧衍生物,并对其进行红外、1 H 和13 C 核磁共振表征。考察了 pH 值、萃取剂浓度、萃取时间、萃取温度对杯芳烃及其磷氧衍生物萃取 U(Ⅵ)的影响。结果表明,杯[6]芳烃对 U(Ⅵ)的萃取效果优于杯[4]芳烃,杯芳烃磷氧衍生物对 U(Ⅵ)的萃取效果优于杯芳烃,在同样的实验条件下,杯芳烃磷氧衍生物对 U(Ⅵ)的萃取率比杯芳烃分别提高了36.49%和37.61%。
通過取代反應,閤成瞭對叔丁基杯[4]、[6]芳烴燐氧衍生物,併對其進行紅外、1 H 和13 C 覈磁共振錶徵。攷察瞭 pH 值、萃取劑濃度、萃取時間、萃取溫度對杯芳烴及其燐氧衍生物萃取 U(Ⅵ)的影響。結果錶明,杯[6]芳烴對 U(Ⅵ)的萃取效果優于杯[4]芳烴,杯芳烴燐氧衍生物對 U(Ⅵ)的萃取效果優于杯芳烴,在同樣的實驗條件下,杯芳烴燐氧衍生物對 U(Ⅵ)的萃取率比杯芳烴分彆提高瞭36.49%和37.61%。
통과취대반응,합성료대숙정기배[4]、[6]방경린양연생물,병대기진행홍외、1 H 화13 C 핵자공진표정。고찰료 pH 치、췌취제농도、췌취시간、췌취온도대배방경급기린양연생물췌취 U(Ⅵ)적영향。결과표명,배[6]방경대 U(Ⅵ)적췌취효과우우배[4]방경,배방경린양연생물대 U(Ⅵ)적췌취효과우우배방경,재동양적실험조건하,배방경린양연생물대 U(Ⅵ)적췌취솔비배방경분별제고료36.49%화37.61%。
The p-tert-butylcalix[4]arene phosphinoxide derivatives and p-tert-butylcalix[6]-arene phosphinoxide derivatives were synthesized by substitution reaction.IR,1 H NMR and 13 C NMR were used to characterize the compounds.The influences of pH,concentration of extractant,extraction time and temperature on the calixarene and its phosphinoxide deriva-tives’extraction of U(Ⅵ)were investigated.The results show that the extraction effect of U(Ⅵ)by p-tert-butylcalix[6]arene is higher than p-tert-butylcalix[4]arene,meanwhile,the extraction efficiencies of U(Ⅵ)by the calixarene phosphinoxide derivatives are higher than the extraction efficiencies of U(Ⅵ)by calixarenes.Compared with calixarenes,the calixare-ne phosphinoxide derivatives’extraction efficiencies of U(Ⅵ)are increased by 36.49% and 37.61% respectively under the same condition.