CAJ | 학술논문

通过对Chelex 100和Chilete P两种螯合树脂对水中Sr2＋离子的静态和动态分离研究，考察浓度、pH值、体积和流速等条件的影响，设计正交实验，摸索树脂动态吸附和洗脱的工艺路线。结果表明：Chelex 100比Chilete P具有更好的Sr2＋离子吸附效果，静态分离回收率分别为71.48％和51.49％。 Chelex 100树脂的动态分离工艺：浓度为250mg· mL-1、pH值为3的Sr2＋离子溶液20mL，以流速为3ml· min-1通过层析柱吸附；8mol · L-1的HNO3溶液以流速为2ml· min-1进行Sr2＋离子的洗脱；获得最终回收率为87.08％。
통과대Chelex 100화Chilete P량충오합수지대수중Sr2＋리자적정태화동태분리연구，고찰농도、pH치、체적화류속등조건적영향，설계정교실험，모색수지동태흡부화세탈적공예로선。결과표명：Chelex 100비Chilete P구유경호적Sr2＋리자흡부효과，정태분리회수솔분별위71.48％화51.49％。 Chelex 100수지적동태분리공예：농도위250mg· mL-1、pH치위3적Sr2＋리자용액20mL，이류속위3ml· min-1통과층석주흡부；8mol · L-1적HNO3용액이류속위2ml· min-1진행Sr2＋리자적세탈；획득최종회수솔위87.08％。
The study on the application of chelating resin to separation of strontium metal ions was given .The adsorbing concentra-tion,pH value,volume and velocity of flow of Chelex 100 and Chelite P resin from strontium solutions were studied in a batch reac-tor.Otherwise,orthogonal test was designed.The results show that adsorbing capacity of Chelex 100 resin was strong than Chelite P.the recovery of Sr 2+were 71.48%and 51.49%for static state separation.The optimum conditions of Chelex 100 resin to separation of strontium ions are as following , absorption conditions:concentration 250mg· mL-1 , pH 3, volume 20mL, velocity of flow 2ml.min-1;desorption conditions:HNO3 concentration 8mol· L-1,velocity of flow 2ml· min-1.Ultimately,the recovery of Sr2+was 87.08%.