Separation of cobalt from thiocyanate solutions by crown ether-based impregnated sorbents

被引：9
作者：
Yankovskaya, V. S. [1 ]
Dovhyi, I. I. [1 ,2 ]
Milyutin, V. V. [3 ]
Nekrasova, N. A. [3 ]
Bezhin, N. A. [1 ]
Lyapunov, A. Yu. [4 ]
机构：
[1] LLP SIC Sorbentex, Kapitanskaya St 2, Sevastopol 299011, Russia
[2] Russian Acad Sci, Inst Marine Hydrophys, Kapitanskaya St 2, Sevastopol 299011, Russia
[3] Russian Acad Sci, AN Frumkin Inst Phys Chem & Electrochem, Leninsky Prospect 31,Bldg 4, Moscow 199071, Russia
[4] Natl Acad Sci Ukraine, AV Bogatsky Physicochem Inst, Lustdorfskaya Doroga St 86, UA-65080 Odessa, Ukraine
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2017年 / 314卷 / 01期
关键词：
Cobalt; Co-60; Sorption; di-(tert-Butyldibenzo)-18-crown-6 (DTBDB18C6); di-(tert-Butylcyclohexano)-18-crown-6 (DTBDCH18C6); Diluents; MINERAL ACID-SOLUTIONS; EXTRACTION; SORPTION; DIBENZO-18-CROWN-6; ELEMENTS; SR-90;
D O I：
10.1007/s10967-017-5354-3
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A number of impregnated sorbents based on di-(tert-butyldibenzo)-18-crown-6 (DTBDB18C6) and di-(tert-butylcyclohexano)-18-crown-6 (DTBDCH18C6) was obtained using different diluents for the crown ether and the styrene-divinylbenzene support. Sorption characteristics of the sorbents in relation to cobalt ions and Co-60 radionuclide in thiocyanate solutions were determined within the range of pH of 1-7. It was found the DTBDB18C6-based sorbents were the most efficient for the sorption of cobalt macro quantities whereas the DTBDCH18C6-based ones for the sorption of Co-60 radionuclide, using nitrobenzene as a diluent. A possibility was shown of the complete cobalt desorption by hydrochloric and nitric acid solutions with the concentration of 0.1-1.0 mol L-1.
引用
收藏
页码：119 / 125
页数：7
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