Articles with "level liquid" as a keyword



Modifier-free separation of trivalent actinides and lanthanides from fast reactor simulated high-level liquid waste using N,N-di-octyl-2-hydroxyacetamide

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Published in 2017 at "Journal of Radioanalytical and Nuclear Chemistry"

DOI: 10.1007/s10967-017-5528-z

Abstract: The extraction behaviour of Am(III) and other metal ions present in the fast reactor simulated high- level liquid waste (FR-SHLLW) was studied using a modifier-free solvent phase composed of N,N-di-octyl-2-hydroxyacetamide (DOHyA) in n-dodecane. Quantitative extraction… read more here.

Keywords: iii; high level; simulated high; reactor simulated ... See more keywords

Selective separation of Pd(II) through ion exchange and oxidation-reduction with hexacyanoferrates from high-level liquid waste

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Published in 2020 at "Separation and Purification Technology"

DOI: 10.1016/j.seppur.2019.115932

Abstract: Abstract A macro porous silica-based nickel hexacyanoferrate (KNiHC/SiO2) adsorbent was synthesized for separation of palladium (Pd(II)) from high-level liquid waste (HLLW). Based on XPS analysis, the Pd 3d5/2 spectrum at 344.4 eV corresponds to metallic palladium… read more here.

Keywords: level liquid; liquid waste; separation; knihc sio2 ... See more keywords

Extraction and Complexation of Fission Products with Unsymmetrical Phenanthroline Diamide Ligands from Simulated High-Level Liquid Waste.

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Published in 2024 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.4c03905

Abstract: The extraction performance and complexation properties between some typical fission products (FPs) with phenanthroline-based ligands N2,N,2N9-triethyl-N9-tolyl-1,10-phenanthroline-2,9-dicarboxamide (DE-ET-DAPhen) and N2-ethyl-N,9N9-dioctyl-N2-tolyl-1,10-phenanthroline-2,9-dicarboxamide (DO-ET-DAPhen) were described in this work. The low distributions of Ln(III) observed in the solvent extraction… read more here.

Keywords: fission products; high level; complexation; extraction ... See more keywords

Continuous separation of molybdenum and zirconium from simulated high-level liquid waste with a Taylor–Couette contactor

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Published in 2018 at "Journal of Nuclear Science and Technology"

DOI: 10.1080/00223131.2018.1509029

Abstract: ABSTRACT Reprocessing of spent nuclear fuels generates high-level liquid waste (HLLW) which undergoes vitrification into borosilicate glass before final geological disposal. To ensure the quality of the glass, control of the concentration of chemical species… read more here.

Keywords: taylor couette; liquid waste; high level; separation ... See more keywords

Boiling and Drying Accident of High-Level Liquid Waste in a Reprocessing Plant: Examination of the Time-Dependent Temperature Increase of the Waste and of the Generation Rates of the Individual Components Released into the Gas Phase

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Published in 2024 at "Nuclear Technology"

DOI: 10.1080/00295450.2023.2273550

Abstract: Abstract Using the amount, composition, and decay power density of high-level liquid waste in a storage tank, the temperature change of the waste up to 600°C and the corresponding vapor and gas release rates of… read more here.

Keywords: temperature; time; high level; waste ... See more keywords

Release Behavior of Gaseous Ruthenium Tetroxide During Heating of High-Level Liquid Waste Simulant During Simulated Accident Conditions

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Published in 2024 at "Nuclear Technology"

DOI: 10.1080/00295450.2024.2306688

Abstract: Abstract A malfunction of the cooling system of high-level liquid waste (HLLW) and the failure of countermeasures may lead to the evaporation to dryness due to the loss of cooling functions (EDLCF) of the HLLW.… read more here.

Keywords: ruthenium; high level; ruthenium tetroxide; level liquid ... See more keywords

Synthesis of soft N-donor isoPentyl-BTBP and study on its removal of actinides from high level liquid waste

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Published in 2019 at "Radiochimica Acta"

DOI: 10.1515/ract-2019-3100

Abstract: Abstract To directly separate actinides from high level liquid waste (HLLW), a novel molecule, i. e. isoPentyl-BTBP (6,6′-bis(5,6-bis(4-methylpentyl)-1,2,4-triazin-3-yl)-2,2′-bipyridines) was synthesized and characterized. A kind of isoPentyl-BTBP/SiO2-P adsorbent was obtained by impregnating isoPentyl-BTBP into porous silica/polymer support… read more here.

Keywords: high level; isopentyl btbp; actinides high; level liquid ... See more keywords

Efficient and Selective Removal of Palladium from Simulated High-Level Liquid Waste Using a Silica-Based Adsorbent NTAamide(C8)/SiO2-P

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Published in 2024 at "Nanomaterials"

DOI: 10.3390/nano14060544

Abstract: In order to realize the effective separation of palladium from high-level liquid waste (HLLW), a ligand-supported adsorbent (NTAamide(C8)/SiO2-P) was prepared by the impregnation method in a vacuum. The SiO2-P carrier was synthesized by in situ… read more here.

Keywords: high level; adsorption; ntaamide sio2; level liquid ... See more keywords

Separation of Minor Actinides from High-Level Liquid Waste Using Novel Silica-Based Butyl-BTP Adsorbents

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Published in 2022 at "Toxics"

DOI: 10.3390/toxics10120741

Abstract: To separate the long-lived minor actinides (MA = Am, Cm) from high-level liquid waste (HLLW), we have been studying an advanced separation process via selective adsorption that uses minimal amounts of organic solvent and compact… read more here.

Keywords: btp; actinides high; level liquid; high level ... See more keywords