Calculation and Optimization of Plasma-Based Utilization Process of Inflammable Wastes after Reprocessing of Spent Nuclear Fuel of Closed Nuclear Cycle

2015 ◽  
Vol 1084 ◽  
pp. 178-182 ◽  
Author(s):  
Alexander Karengin ◽  
Alexey Karengin ◽  
Ivan Novoselov ◽  
Nikolay Tundeshev
Keyword(s):  
Nitric Acid ◽  
Acid Solution ◽  
Nuclear Fuel ◽  
Nitric Acid Solution ◽  
Spent Nuclear Fuel ◽  
Practical Implementation ◽  
Air Plasma ◽  
Wide Range ◽  
Mass Fractions ◽  
Processing Wastes

This work demonstrates the results of modeling the joint utilization process of the spent solutions of tributylphosphate with hexachlorinebutadiene for extracting uranium and plutonium from a nitric acid solution of spent nuclear fuel and its processing wastes. Calculations are made for a wide range of temperature and mass fractions of air plasma coolant. Also, optimal inflammable water-organic compositions and work regimes for the practical implementation of this process in air plasma were determined.

Calculation and Optimization of Plasma Utilization Process of Inflammable Wastes after Spent Nuclear Fuel Recycling

2014 ◽  
Vol 1040 ◽  
pp. 433-436 ◽  
Author(s):  
A.G. Karengin ◽  
A.A. Karengin ◽  
I.Yu. Novoselov ◽  
N.V. Tundeshev
Keyword(s):  
Nitric Acid ◽  
Acid Solution ◽  
Nuclear Fuel ◽  
Nitric Acid Solution ◽  
Mass Fraction ◽  
Spent Nuclear Fuel ◽  
Air Plasma ◽  
Practical Application

There are shown modeling results of the joint utilization process of tributylphosphate’s spent solutions into hexachlorinebutadiene for uranium and plutonium extraction from nitric acid solution of spent nuclear fuel and its recycling wastes. Utilization process was carried out for widely temperature and mass fraction ranges of air plasma coolant. Also optimal consist of inflammable water-organic compositions and modes for practical application this process in air plasma was determined.

Development of a New Aqueous Process for Nuclear Fuel Reprocessing: Hot Tests on the Recovery of U and Pu from a Nitric Acid Solution of Spent LWR Fuel

2005 ◽  
Vol 149 (2) ◽  
pp. 217-231 ◽  
Author(s):  
Yuezhou Wei ◽  
Tsuyoshi Arai ◽  
Harutaka Hoshi ◽  
Mikio Kumagai ◽  
Aimé Bruggeman ◽  
...  
Keyword(s):  
Nitric Acid ◽  
Acid Solution ◽  
Nuclear Fuel ◽  
Nitric Acid Solution ◽  
Nuclear Fuel Reprocessing ◽  
Fuel Reprocessing

Extraction of Am(III) by benzyldibutylamine from nitrate solutions of lanthanides

1981 ◽  
Vol 46 (1) ◽  
pp. 194-200 ◽  
Author(s):  
Marta Vojtíšková ◽  
Věra Jedináková ◽  
Libor Kuča
Keyword(s):  
Nitric Acid ◽  
Nuclear Fuel ◽  
Organic Phase ◽  
Spent Nuclear Fuel ◽  
Optimum Conditions ◽  
Separation Factors ◽  
Nitrate Solutions

Benzyldibutylamine is a suitable extractant for the separation of Am(III) and Ln(III) from the acidic nitrate solutions. The effect of lanthanides and yttrium on the extraction of Am(III) has been followed under the conditions modelling the content of these components in the spent nuclear fuel. The separation factors αAm/Ln were evaluated for the optimum conditions found for the separation of Am(III) from the lanthanides. The coextraction of nitric acid and water into the organic phase is discussed.

scholarly journals Novel pyrimidine-bichalcophene derivatives as corrosion inhibitors for copper in 1 M nitric acid solution

RSC Advances ◽  
2021 ◽  
Vol 11 (41) ◽  
pp. 25314-25333
Author(s):  
Mai A. Khaled ◽  
Mohamed A. Ismail ◽  
Ahmed. A. El-Hossiany ◽  
Abd El-Aziz S. Fouda
Keyword(s):  
Weight Loss ◽  
Electrochemical Impedance Spectroscopy ◽  
Nitric Acid ◽  
Impedance Spectroscopy ◽  
Acid Solution ◽  
Nitric Acid Solution ◽  
Potentiodynamic Polarization ◽  
Corrosion Inhibitors ◽  
Electrochemical Impedance ◽  
Pyrimidine Derivatives

This study targets the investigation of three pyrimidine derivatives (MA-1230, MA-1231, MA-1232) for the prevention of corrosion on copper in 1 M HNO3via weight loss (WL), potentiodynamic polarization (PDP), and electrochemical impedance spectroscopy (EIS) techniques.

scholarly journals The effect of crystal textures on the anodic oxidization of zirconium in a boiling nitric acid solution

2015 ◽  
Vol 53 (9) ◽  
pp. 1371-1379 ◽  
Author(s):  
Chiaki Kato ◽  
Yasuhiro Ishijima ◽  
Fumiyoshi Ueno ◽  
Masahiro Yamamoto
Keyword(s):  
Nitric Acid ◽  
Acid Solution ◽  
Nitric Acid Solution

Influence of Corona Discharge on CaSO4 Solubility of Silicone Rubber Insulator Surface

2021 ◽  
Vol 69 (1) ◽  
pp. 74-79
Author(s):  
Sihua Wang ◽  
Junjun Wang ◽  
Chen Long ◽  
Zhao Lei
Keyword(s):  
Nitric Acid ◽  
Acid Solution ◽  
Corona Discharge ◽  
Nitric Acid Solution ◽  
Silicone Rubber ◽  
Calcium Sulfate ◽  
Salt Composition ◽  
Surface Product ◽  
Two Temperatures ◽  
Discharge Test

Some studies have shown that the operating state of silicone rubber insulators is not only affected by surface corona discharge, but also different due to the surface covered with different pollutants, but few studies have linked the two. In this paper, by designing the corona discharge test of silicone rubber insulator, the output of nitric acid from its surface product was calculated, and the concentration of nitric acid under different air humidity was obtained. The solubility test of slightly dissolved salt calcium sulfate in nitric acid solution at 293.15K and 333.15K was designed to obtain the solubility of calcium sulfate at different concentrations of nitric acid at two temperatures. Finally, a quantitative analysis of the solubility of calcium sulfate on the surface of insulator FXBW-10/70 in nitric acid solution shows that the surface contamination of insulator with good hydrophobicity may be completely dissolved by nitric acid solution, but the surface of insulator with loss of hydrophobicity cannot be completely dissolved by nitric acid. This study provides a theoretical basis for the dissolution characteristics of silicon rubber insulator corona discharge on its surface soluble salt composition and provides a new idea for the influence of insulator corona discharge on its electrical properties.

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