Molten fluorides
Silicon recovery from silicon-iron alloys by electrorefining in molten fluorides
... kind of process has nevertheless been reassessed. Thus, basic inves- tigations on Si(IV) reduction mechanism have been carried out in molten fluorides [5–14] and more recently, the salts properties and ...
7
Investigation on fluoroacidity of molten fluorides solutions in relation with mass transport
... Equilibria between species in solution and its corresponding gaseous species were investigated in var ious molten fluorides mixtures. From the measurements of baron and silicon kinetic constant of gas ...
8
Neodymium and gadolinium extraction from molten fluorides by reduction on a reactive electrode
... in molten fluorides after dissolving the nuclear ...in molten fluoride media ...a molten fluoride mixture by electrodeposition, Nourry et ...
25
Investigation on fluoroacidity of molten fluorides solutions in relation with mass transport
... Equilibria between species in solution and its corresponding gaseous species were investigated in var ious molten fluorides mixtures. From the measurements of baron and silicon kinetic constant of gas ...
7
Silicon electrodeposition in molten fluorides
... In the 1980s, silicon electrodeposition in molten salts has been considered as an attractive option for SoG-Si production [2] . Indeed, silicon metal is more reductive than hydrogen meaning that silicon ...
9
Silicon recovery from silicon-iron alloys by electrorefining in molten fluorides
... more stable in basic molten baths: the most suitable one was proven to be the eutectic NaF-KF (40–60 mol%) mixture [15] . In order to minimize Si losses in the gaseous phase, this salt mix- ture (T melting = 718 ◦ ...
8
Electrochemical preparation of aluminium-nickel alloys by Under-Potential Deposition in molten fluorides
... in molten salts on each type of cathodic substrate is a prerequisite for understanding how to obtain either the pure metal or compounds of the binary phase ...
48
Co-reduction of aluminium and lanthanide ions in molten fluorides : application to cerium and samarium extraction from nuclear waste
... The pyrochemical route is mainly envisaged for the reprocessing of advanced fuels and transmutation blankets which are expected to have a high content of Pu and minor actinide and high burn up. The interest of ...
8
Feasibility of the electrochemical way in molten fluorides for separating Thorium and Lanthanides and extracting Lanthanides from the solvent.
... Abstract: An alternative way of reprocessing nuclear fuel by hydrometallurgy could be using treatment with molten salts, particularly fluoride melts. Moreover, one of the six concepts chosen for GEN IV nuclear ...
32
On the use of liquid metals as cathode in molten fluorides
... The aim of this article is to investigate the behaviour of liquid metallic electrodes in pyroprocesses. Thus, studies of electrochemical properties of various liquid metallic electrodes (Bi, Sb, Sn, Pb, Ga) were ...
8
On the use of liquid metals as cathode in molten fluorides
... The aim of this article is to investigate the behaviour of liquid metallic electrodes in pyroprocesses. Thus, studies of electrochemical properties of various liquid metallic electrodes (Bi, Sb, Sn, Pb, Ga) were ...
9
Nitrogen evolution as anodic reaction in molten LiF–CaF2
... in molten halide salts is the anodic reaction. In the case of molten chlorides, the anodic reaction can be the oxida- tion of chloride ions into chlorine; although in molten fluorides, the ...
5
Electrochemistry of uranium in molten LiF-CaF2
... using molten chloride ....), molten flu- orides and properties of actinides in those media have not been extensively ...in molten fluorides [6–12] ...
8
Fluoroacidity evaluation in molten salts
... where a F − is the activity of free F − ions in the mixture. The pF − role is similar to the pH for protic solvent, hence it is a key parameter in molten fluorides for applications such as ...
7
Behaviour of alumina powder fed into molten electrolytic bath
... 1.1.2 Structure Historically, two kinds of SGA were used, sandy and floury, the latter having a high alpha alumina content and small particle size. With the environmental and economic need to clean anode gas and ...
177
Electrochemical extraction of europium from molten fluoride media
... the molten solvent. On top of these P&T concepts, the Molten Salt Reactor, which is one of the six nuclear reactors con- cept evaluated in the frame of the Generation IV Forum, requires an online ...
8
Zirconium(IV) electrochemical behavior in molten LiF-NaF
... These results are important and provide information on the deposition strategy. Indeed, the nucleation is progressive, DC electrolysis appears to be suitable for zirconium deposition. With a progressive nucleation model, ...
10
Microstructural evolution of SiC powder in molten silicon
... between molten silicon and submicronic SiC powder have been considered since it could originate some limitations on the final properties of the ...and molten Si were performed while heating up to final ...
29
Electrochemical behavior of neodymium in molten chloride salts
... • Kinetics studies of the chemical reaction with addition of an excess Nd metal in LiCl-KCl-NdCl 3 and LiCl-NdCl 3 (chemical analysis and potential follow-up). • Stability Nd(II) witho[r] ...
13
Molten polystyrene structures above the glass transition, T > Tg
... increasing q to about 60.2 C. The oscillatory shearing of molten PS was carried out in an advanced rheometric expansion system (ARES-LS with 25-mm parallel plates) at x ¼ 0.1 or 1.0 rad/s (0.0159 or 0.1592 Hz) ...
13