Search
Search Results
-
Thermal stability of nitric acid solutions of acetohydroxamic acid
The thermal stability of a solution of 12 mol·L −1 nitric acid with 50 g·L −1 acetohydroxamic acid has been studied. It has been established that weak...
-
Extraction Properties of Polyphosphorylated Pyridines in Nitric Acid Media
AbstractThe extraction of U(VI), Th(IV), Am(III), and Eu(III) with solutions of phosphorylated pyridines from nitric acid solutions has been studied....
-
Extraction Equilibria in the Samarium Nitrate–Nitric Acid–Water–Di(2-ethylhexyl)phosphoric Acid–Organic Diluent System
AbstractA study is performed of liquid–liquid extraction equilibria in systems composed of samarium(III) nitrate, nitric acid, water, cyclohexane...
-
Extraction of Actinides and Lanthanides from Nitric Acid Solutions with Phosphorylated Pyrazines
AbstractThe extraction of U(VI), Th(IV), Am(III), and lanthanides(III) from nitric acid solutions with solutions of phosphorylated pyrazines in...
-
Equilibria in the Tetra-n-Octyldiglycolamide–Water–Nitric Acid–Carbon Dioxide System
AbstractData on the solubility of tetra- n -octyldiglycolamide (TODGA) in supercritical (SC) carbon dioxide at 310–360 K and 80–250 bar were obtained....
-
Exothermic Processes in Nitric Solutions Containing Acetohydroxamic Acid
AbstractThe thermal stability of 5–12 M HNO 3 solutions containing 5–50 g/L acetohydroxamic acid was studied at atmospheric and above atmospheric...
-
Reaction of 1,3-Dihaloadamantanes with Nitric Acid
Abstract1,3-Dibromoadamantane derivatives reacted with fuming nitric acid to give mixtures of products with a 2-oxaadamantane skeleton....
-
Sorption Treatment of Nitric Acid Solutions to Remove Tributyl Phosphate and Hexachlorobutadiene
AbstractThe possibility of using the polymer sorbent Polysorb-1 for the treatment of nitric acid solutions to remove organophosphorus compounds,...
-
Behavior of Surface-Active Substances in a Nitric Acid Medium and Prospects for Using Them in Hydrometallurgy
AbstractThe behavior of surface-active substances (surfactants) is studied using the examples of lignosulfonate (LS) and sodium dodecyl sulfate (SDS)...
-
Speciation of nitric acid third phase in a 30%TBP/n-dodecane solvent
Third phase formation during nuclear solvent extraction has the delirious effect on operation of extractor cascade and may result in the criticality...
-
Determination of concentration of formaldehyde in high level waste during the destruction of nitric acid in PUREX process
A simple titrimetric procedure has been developed for the determination of the concentration of formaldehyde present in nitric acid. The procedure is...
-
Modeling delayed thermal runaway in nitric acid-soaked cat litter mixed with radioactive waste
Thermal ignition of radioactive waste within a 55-gallon drum was simulated by using a pressure-dependent waste decomposition model (Hobbs et al. in...
-
Boosting Stability and Efficiency: Defect-Rich Pd/NC Catalysts for Nitric Acid Reduction to Methyl Nitrite
Reduction of nitric acid reaction (2NO + HNO 3 + 3CH 3 OH → 3CH 3 ONO + 2H 2 O) can convert by-product nitric acid into raw material methyl nitrite in the...
-
Quantitative and qualitative impacts of nitric acid digestion on microplastic identification via FTIR and Raman spectroscopy, implications for environmental samples
Quantification and characterization of microplastics, synthetic polymers less than 5 mm in diameter, requires extraction methods that can reduce...
-
Extraction of REE(III) from Nitric Acid Media with Solutions of Tetraoctyldiglycolamide in Trioctylammonium Bis[(trifluoromethyl)sulfonyl]imide
AbstractThe effect of the ionic liquid {trioctylammonium bis[(trifluoromethyl)sulfonyl]imide} on the extraction of REE(III) with...
-
Description of strontium precipitation in highly concentrated nitric acid
The precipitation of strontium in highly concentrated nitric acid is often used in standard radiochemical methods for 90 Sr separation. In this work,...
-
Kinetics of dissolution of simulated (U–Ce) MOX fuel pellet in nitric acid
In the present study, the dissolution kinetics of simulated urania, ceria MOX fuel pellets in nitric acid under PUREX process condition has been...
-
Extraction of Actinides and Lanthanides(III) from Nitric Acid Solutions with Mixtures of N-(Diphenylphosphoryl)-N'-propylureas with ω-Nitrogen-Containing Groups and Dinonylnaphthalenesulfonic Acid
AbstractExtraction of uranium, thorium, and lanthanide(III) ions from nitric acid solutions with mixtures of dinonylnaphthalenesulfonic acid and...
-
Nitric Acid Corrosion Issues of Spent Fuel Nuclear Fuel Reprocessing Plants Materials
The degradation of reprocessing materials to nitric acid corrosion in aqueous spent fuel nuclear reprocessing plants is an unwanted and serious...
-
Extraction of Actinides and Lanthanides from Nitric Acid Solutions with Diphosphine Dioxides in the Presence of an Ionic Liquid
AbstractThe effect of the ionic liquid—1-butyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide—on the extraction of lanthanides(III), U(VI)...
