A5038659070- Radioactive element chemistry and processing
- Extraction and Separation Processes
- Chemical Synthesis and Characterization
- Metal Extraction and Bioleaching
- Ionic liquids properties and applications
- Chemical and Physical Properties in Aqueous Solutions
- Layered Double Hydroxides Synthesis and Applications
- Lanthanide and Transition Metal Complexes
- Cancer Treatment and Pharmacology
- Analytical chemistry methods development
- X-ray Spectroscopy and Fluorescence Analysis
- Electrochemical Analysis and Applications
- Radiopharmaceutical Chemistry and Applications
- Ultrasound and Cavitation Phenomena
- Air Quality and Health Impacts
- Nanomaterials for catalytic reactions
- Catalytic Processes in Materials Science
- Diabetes Treatment and Management
- Nuclear Materials and Properties
- Carbon Nanotubes in Composites
- Microwave Dielectric Ceramics Synthesis
- Cleft Lip and Palate Research
- Craniofacial Disorders and Treatments
- Protein purification and stability
- Covalent Organic Framework Applications
Bhabha Atomic Research Center Hospital
2021-2024
Bhabha Atomic Research Centre
2013-2023
Alkaline leaching is used for the extraction of uranium from rarely available carbonate ore. A hyperbranched cross-linked polymeric adsorbent (HCPA) was developed selective recovery uranium(VI) (U) real-life alkaline leach liquor. HCPA synthesized using free radical copolymerization acrylamide and N, N-methylene bis(acrylamide). In addition, potassium persulfate (as initiator) dodecanethiol brancher) were to transfer radicals faster chain formation smooth branching long-chain polymer....
This investigation reports the extraction of UO 2 Cl 4 2− and MoO 2+ via neutral (R N) cationic (Ph) + complexes (following ‘solvation’ ‘cation exchange’ mechanisms), using a task-specific ionic liquid (TSIL).
Functionalized ionic liquid based on quaternary ammonium salt was investigated for the specific task of efficient extraction f block elements in different oxidation states. It deals with investigation efficiency, mechanism, speciation and associated kinetics thermodynamics. The extracted species Pu4+, PuO22+, Am3+, Eu3+ were found to be Pu(Hptha)(H2O)63+, PuO2(Hptha)(H2O)2+, Am(Hptha)(H2O)72+, Eu(Hptha)(H2O)72+, respectively where (Hptha)− is anionic part liquid. Effect radiation exposure...
Abstract: Liquid–liquid extraction of neptunium from aqueous acidic solution using quaternary ammonium based task specific ionic liquid (TSIL) was investigated. The Np predominated by the ‘cation exchange’ mechanism via [NpO 2 ·Hpth] + species for NpO 2+ , while extracted in as ·H·Hpth] . process thermodynamically spontaneous kinetically slower. Na CO 3 strippant showed quantitative back ions TSIL. TSIL excellent radiolytic stability upto 500 kGy gamma exposure. Finally, employed processing...
Separation of U(VI) from Th(IV) and rare earth elements (REEs) present in monazite leach solution (nitric acid medium) has been studied using tris(2-ethylhexyl) phosphate (TEHP) tri-n-butyl (TBP) dissolved n-paraffin as solvents under varying experimental conditions such nitric acid, extractant metal ion concentrations etc. There is an increase distribution ratio (D U ) with aqueous phase acidity up to 5 M HNO3 beyond which a decrease observed. Typically for 1 × 10−3 U(VI), the DU values 8...
Permeation of U(VI) from nitric acid solution has been studied across supported liquid membrane (SLM) using bis[2,4,4 trimethyl pentyl] phosphinic (Cyanex 272) either alone or in combination with neutral donors like Cyanex 923 (a mixture four trialkyl phosphine oxides viz. R3PO, R2R′PO, RR′2PO, and R′3PO where R: n-octyl R′: n-hexyl chain), TBP (tri-n-butyl phosphate), TEHP (tris-2-ethylhexyl phosphate) dissolved n-paraffin as carriers. Effect various other parameters such nature...
Use of ultrasound as an intensified non-destructive decontamination technique for processing graphite limits its reusability beyond a few number cycles due to the exfoliation cavitation effects. The current work establishes that use platinum nanoparticles in leachant reduces erosion substrate cavitation. It presents improved way sonochemical recovery ceria using mixture nitric acid, formic acid and hydrazinium nitrate presence ionic liquid. catalyst liquid prevented generation carbon residue...