Adsorption properties and behavior of the platinum group metals onto a silica-based (Crea + TOA)/SiO2–P adsorbent from simulated high level liquid waste of PUREX reprocessing

2012 ◽  
Vol 297 (1) ◽  
pp. 41-48 ◽  
Author(s):  
Yuanlai Xu ◽  
Seong-Yun Kim ◽  
Tatsuya Ito ◽  
Tsutomu Tada ◽  
Keitaro Hitomi ◽  
...  
Keyword(s):  
Liquid Waste ◽  
Adsorption Properties ◽  
Platinum Group Metals ◽  
High Level Liquid Waste ◽  
Platinum Group ◽  
High Level ◽  
And Behavior

Adsorption Behaviors of Platinum Group Metals in Simulated High Level Liquid Waste Using Macroporous (MOTDGA-TOA)/SiO2-P Silica-based Absorbent

2013 ◽  
Vol 48 (17) ◽  
pp. 2616-2625 ◽  
Author(s):  
Tatsuya Ito ◽  
Seong-Yun Kim ◽  
Yuanlai Xu ◽  
Keitaro Hitomi ◽  
Keizo Ishii ◽  
...  
Keyword(s):  
Liquid Waste ◽  
Platinum Group Metals ◽  
High Level Liquid Waste ◽  
Adsorption Behaviors ◽  
Platinum Group ◽  
High Level

Effect of adding dodecanol as modifier to N,N,N′,N′-tetra-n-hexyl-3,6-dithiaoctane-1,8-diamide silica-based adsorbent on the adsorption behaviors of platinum-group metals and other metals from simulated high-level liquid waste

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Naoki Osawa ◽  
Seong-Yun Kim ◽  
Tatsuya Ito ◽  
Hao Wu
Keyword(s):  
Liquid Waste ◽  
Platinum Group Metals ◽  
Composite Particles ◽  
Batch Adsorption ◽  
High Level Liquid Waste ◽  
Macroporous Silica ◽  
Adsorption Behaviors ◽  
Styrene Divinylbenzene ◽  
Platinum Group ◽  
High Level

Abstract To adsorb and separate platinum-group metals efficiently from simulated high-level liquid waste, two adsorbents, N,N,N′,N′-tetra-n-hexyl-3,6-dithiaoctane-1,8-diamide (THDTODA)/SiO2-P and (THDTODA + dodecanol)/SiO2-P, were prepared by impregnation of THDTODA with or without dodecanol into macroporous silica/styrene–divinylbenzene copolymer composite particles SiO2-P. The effect of the addition of dodecanol to THDTODA fixed silica-based adsorbents on the separation of platinum-group metals and other metals was evaluated by batch adsorption and chromatographic separation experiments. THDTODA/SiO2-P adsorbed Ru(III) and Rh(III) more than (THDTODA + dodecanol)/SiO2-P did in concentrated HNO3 solution. From the calculated thermodynamic parameters, dodecanol was considered to have little effect on the temperature dependence of the adsorptions of Ru(III), Zr(IV), Mo(VI), and Re(VII) onto the THDTODA adsorbents. Furthermore, in the results of column chromatography experiments, the effects of dodecanol addition on the separation properties were observed for Ru(III), Zr(IV), and Mo(VI), but little effect was observed for Pd(II) and Re(VII).

Chromatographic separation of platinum group metals from simulated high level liquid waste using macroporous silica-based adsorbents

2013 ◽  
Vol 1312 ◽  
pp. 37-41 ◽  
Author(s):  
Yuanlai Xu ◽  
Seong-Yun Kim ◽  
Tatsuya Ito ◽  
Haruki Tokuda ◽  
Keitaro Hitomi ◽  
...  
Keyword(s):  
Chromatographic Separation ◽  
Liquid Waste ◽  
Platinum Group Metals ◽  
High Level Liquid Waste ◽  
Macroporous Silica ◽  
Platinum Group ◽  
High Level

Adsorption Behavior of Platinum Group Metals onto a Silica-based (Crea+Dodec)/SiO2-P Extraction Resin from Simulated High Level Liquid Waste

2015 ◽  
Vol 50 (2) ◽  
pp. 260-266 ◽  
Author(s):  
Yuanlai Xu ◽  
Seong-Yun Kim ◽  
Tatsuya Ito ◽  
Haruki Tokuda ◽  
Keitaro Hitomi ◽  
...  
Keyword(s):  
Liquid Waste ◽  
Platinum Group Metals ◽  
Adsorption Behavior ◽  
High Level Liquid Waste ◽  
Platinum Group ◽  
High Level
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