[HTML][HTML] Supercritical fluids in separation and purification: A review

SD Manjare, K Dhingra - Materials Science for Energy Technologies, 2019 - Elsevier
The properties of the supercritical fluid near the critical point can be changed by varying the
pressure and temperature, allowing selective and faster extraction. Supercritical fluids …

Solubility of di-cyclohexylhydrogen phosphonate in supercritical carbon dioxide medium: Application towards the recovery of uranium from aqueous solution

P Rajani, KC Pitchaiah, B Sreenivasulu… - Journal of Molecular …, 2023 - Elsevier
Hydrogen phosphonates are di-esters of phosphonic acids and are widely employed as
ligands for recovery of actinide species from different matrices. An alicyclic hydrogen …

Solubilities of dialkylhydrogen phosphonates in supercritical carbon dioxide and their correlation using semi-empirical equations

J Deepitha, KC Pitchaiah… - Separation Science …, 2019 - Taylor & Francis
The solubilities of dibutylhydrogen phosphonate (DBHP) and dihexylhydrogen phosphonate
(DHHP) in supercritical carbon dioxide were determined at 313–333 K and 10–20 MPa. The …

Experimental measurements and correlation of the solubility of N, N-dialkylamides in supercritical carbon dioxide

KC Pitchaiah, N Lamba, J Deepitha… - The Journal of …, 2019 - Elsevier
N, N-Dialkylamides are the potential ligands for the extraction of actinides in nuclear-fuel
cycle operations. Supercritical carbon dioxide (SCCO 2) containing N, N-dialkylamides is a …

Solubility of pyridine-2, 6-dicarboxylic acid in supercritical carbon dioxide and its application for removal of lead and nickel in simulated matrices

J Deepitha, KC Pitchaiah, G Chandrasekhar… - The Journal of …, 2021 - Elsevier
Abstract The solubility of pyridine-2, 6-dicarboxylic acid in supercritical carbon dioxide was
measured at 313–333 K and 10–20 MPa, using a flow-saturation technique. The influence of …

Recovery of uranium and plutonium from pyrochemical salt matrix using supercritical fluid extraction

KC Pitchaiah, K Sujatha, J Deepitha, S Ghosh… - The Journal of …, 2019 - Elsevier
Pyrochemical reprocessing of spent nuclear fuel involves use of molten salts for the
separation of actinides from fission products. Salt waste arising from this process contains …

Solubility of dialkylalkyl phosphonates in supercritical carbon dioxide: Experimental and modeling approach

KC Pitchaiah, CVSB Rao, N Sivaraman, M Joseph… - Fluid Phase …, 2017 - Elsevier
Dialkylalkyl phosphonates have found renewed interest in the selective extraction of
actinides from different matrices. In this context, two dialkylalkyl phosphonates, dibutylbutyl …

Experimental determination and model correlation for the solubilities of trialkyl phosphates in supercritical carbon dioxide

KC Pitchaiah, N Sivaraman, N Lamba, G Madras - RSC advances, 2016 - pubs.rsc.org
The solubilities of a series of trialkyl phosphates in supercritical carbon dioxide have been
investigated. The solubility measurement was carried out using a dynamic flow method. The …

Super-Critical Fluid: An Overview on Analytical Applications

F Kadri, G Xavier, U Patel… - Current Green …, 2021 - ingentaconnect.com
Super Critical Fluid is the emerging technique that consists of super solvent, which is
considered a benefit over many other conventional solvents. The main component utilized in …

[HTML][HTML] Conformational Analysis of N-Alkyl-N-[2-(diphenylphosphoryl)ethyl]amides of Diphenylphosphorylacetic Acid: Dipole Moments, IR Spectroscopy, DFT Study

A Kuznetsova, D Chachkov, O Artyushin… - Molecules, 2021 - mdpi.com
Experimental and theoretical conformational analysis of N-methyl-N-[2-(diphenylphosphoryl)
ethyl] diphenylphosphorylacetamide, N-butyl-N-[2-(diphenylphosphoryl) ethyl] …