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10. Gaidenko P.P. Scientific rationality and philosophical mind. M., 2003, p.73-78.
46
Журнал «Интернаука»
№ 16 (145), часть 3, 2020 г.
CHEMISTRY
SYNTHESIS OF TBP-ST-DVB EXTRACTANT POLYMER RESIN AND SEPARATION
OF RADIOACTIVE GALLIUM CHLORIDE
Kim Chung Hyok
Candidate of chemical sciences, Kim Il Sung University,
DPRK, Pyongyang
Im Jon Gil
Doctor of chemical sciences, associate Professor, Kim Il Sung University,DPRK, Pyongyang
Pak Ho Song
Candidate of chemical sciences, Kim Il Sung University,
DPRK, Pyongyang
ABSTRACT
TBP-St-DVB extractant polymer resin was prepared from tri-butylphosphate, styrene and divinylbenzene by suspension polymerization. On extraction chromatograph column, while kinetic process of Ga extraction could be assumed to be simultaneous process of film diffusion and gel diffusion, activation energy of Ga extractive reaction on column was E*=14.92kJ·mol-1.
Keyword: extractant, polymer resin, synthesis, Gallium, Zinc, separation.
1. Introduction
2.2. Extraction of Ga and Zn with TBP-St-DVB ex-
Extractant polymer resins are new type of separa-
tractant polymer resin
tion functional materials that have advantages of solvent
Static condition
extraction and ion exchange technology and overcome
First, extractant resin was swollen in 1mol·L-1 HCl
disadvantages of those.
solution for 24h. Then 1mL of 67Ga solution
In early papers, kinetics of Ga separation by TBP-
(40kBq·mL-1) was injected into 10mL of hydrochloride
St-DVB extractant polymer resin was not studied.
acid solution (concentration of Ga ion; 20mg·L-1) and In this paper, results of kinetic research about 67Ga
mixed. 1g of extractant resin (TBP concentration 30%, separation on hydrochloride solution from Zn target
granular size 0.3~0.4mm) was applied into solution and
bombed by ion beam accelerator were described based
mixed at 60rpm. Equilibrium time was determined when
on synthesizing TBP-St-DVB extractant polymer resin
radioactivity of solution didn’t change by time.
containing TBP as extractant.
Dynamic condition
2. Experimental
A glass column (0.8×25cm) was packed with 0.8g
2.1. Synthesis of TBP-St-DVB extractant polymer
of swollen 30% TBP-St-DVB extractant resin and
resin
washed with HCl solution.
Synthesis of extractant polymer resin containing
GaCl3/6mol·L-1 HCl solution was flown through the
30% TBP was carried out in glass reactor supplied by a
column at flow rate of 1mL·min-1 to extract 67Ga. After
mixer, a thermometer and a reversed refrigerator.