A5100626738- Radioactive element chemistry and processing
- Extraction and Separation Processes
- Chemical Synthesis and Characterization
- Coastal and Marine Dynamics
- Wave and Wind Energy Systems
- Fluid Dynamics Simulations and Interactions
- Thermal and Kinetic Analysis
- Recycling and Waste Management Techniques
- Surface Modification and Superhydrophobicity
- Ultrasound and Cavitation Phenomena
- Advancements in Battery Materials
- Ocean Waves and Remote Sensing
- Underwater Vehicles and Communication Systems
- Fluid Dynamics and Heat Transfer
- Metal Extraction and Bioleaching
- Adsorption and biosorption for pollutant removal
- Advanced Chemical Sensor Technologies
- Combustion and Detonation Processes
- Ionic liquids properties and applications
- Magnesium Alloys: Properties and Applications
- Heat Transfer and Boiling Studies
- Radioactive contamination and transfer
- Refrigeration and Air Conditioning Technologies
- Earthquake and Tsunami Effects
- Bauxite Residue and Utilization
Bhabha Atomic Research Centre
2011-2025
Homi Bhabha National Institute
2020-2025
D.Y. Patil University
2023-2024
Ajeenkya DY Patil University
2023-2024
National Institute Of Technology Silchar
2020-2022
Abstract Neodymium hexaboride (NdB 6 ) is an important rare‐earth material that has many structural and functional applications in advanced technologies. This paper presents the results on experimental studies of synthesis, densification, microstructural characterization, mechanical properties NdB . Single‐phase powder was obtained by carbothermic reduction Nd 2 O 3 B 4 C at optimized conditions charge composition. Densification powders carried out pressureless sintering hot pressing. The...
This paper deals with studies on the extraction of uranium(VI) from phosphoric acid medium using (2-ethylhexyl)phosphonic mono 2-ethylhexyl ester and tri-n-octylphosphine oxide individually as well their synergistic mixture. Different parameters were investigated. With an increase in concentration aqueous phase, distribution ratio (Du) was found to decrease all cases. Synergism observed when a mixture PC-88A TOPO used. The mole 4:1 (1.80 M PC-88A: 0.45 TOPO) xylene be most suitable for...
In the present study an attempt has been made to understand extraction and stripping behavior of iron (III) with D2EHPA alone its mixture TBP or TOPO in phosphoric acid medium. Effect variables such as concentrations (III), acid, phosphate aqueous phase, D2EHPA, TBP, organic phase temperature on process studied. The decreased increase concentration. concentration increased (III). presence showed antagonism. either showing exothermic nature reaction. by various reagents followed order: oxalic...
The extraction of uranium (VI) from hydrochloric acid medium with PC-88A (H 2 A in dimeric form) and neutral organo phosphorous donors like TBP, TOPO Cyanex 923 (S) dodecane is reported. Experiments were performed PC-88A, alone the mixtures or 923. presence solutions gave synergistic enhancement (VI), order being 923>TOPO>TBP. species extracted UO (HA ) , whereas alone, it Cl ·2S ·S. power dependencies S under experimental conditions have also been evaluated using non-linear regression...
The present studies deal with the application of supported liquid membrane (SLM) technique for separation and purification plutonium from other impurities in nitric acid medium using anion exchanger Aliquat 336 (a quaternary ammonium salt)/ n-paraffin as a carrier. effects feed acidity, stripping agent, pore size thickness on transport behavior anionic complex have been studied detail. An attempt has made to establish mechanism model physicochemical across SLM. Transport increased increase...
Extractant impregnated polyethersulfone beads have been prepared by phase inversion method and investigated for yttrium recovery from aqueous medium. The effect of experimental parameters on sorption has studied. Quantitative (> 90%) was attained after 8 hours equilibration time in the case D2EHPA composite beads. Analysis data different kinetic diffusion models suggested that Y(III) followed pseudo-second order model. Stability tests with polymeric multiple cycles desorption established...
ABSTRACTPolyethersulfone (PES) composite beads encapsulating the extractants di-(2-ethylhexyl) phosphoric acid (DEHPA), tributyl (TBP), and mixture of DEHPA & TBP were synthesized. The synthesis was carried out using phase inversion method. Subsequently, these PES applied for recovery plutonium [Pu (IV)] from different aqueous acidic medium. In kinetic studies, extraction Pu (IV) found to be fast equilibrium attained within 5 minutes. batch sorption role acidity nitrate ion concentration on...
This paper explores the impact of viscosity ratio and surface wettability on immiscible viscous fingering instability within a rectangular channel. Numerical investigations are conducted across range ratios (VR) from 0.0009 to 0.5 wall ([Formula: see text]) 15° 150°. The volume fluid (VOF) model is employed track development finger-shaped at interface. Our results indicate that higher lead increased displacement efficiency. Additionally, we find formation necking low VR, which diminishes VR...
A solvent extraction process based on organophosphorus extractant EHEHPA has been developed to raise the purity of erbium from ~20 >85% in product solution. The challenging task upgrading value a host chemically similar heavy rare earths present concentrate (% composition: Dy2O3: 58.72, Er2O3: 21.45, Ho2O3: 13.33, Tm2O3: 0.67, Yb2O3: 4.74 and Y2O3: 1.09) was accomplished by careful selection parameters such as aqueous feed acidity, concentration, total concentration solution, phase ratio,...