STM Journals Peer-reviewed research from Consortium e-Learning Network

3 publications

  • Published Subscription

    Organic Phase Speciation of 36% Tri-Iso Amyl Phosphate/N-Dodecane Solvent during Nitric Acid Extraction

    By Ravi kant Srivastav, S. Balasubramonian, Shekhar Kumar, D. Sivakumar, M. Sampath, U. Kamachi Mudali

    Abstract: Several solutions of 36% TiAP/n-dodecane solvent were equilibrated with different concentrations of aqueous nitric acid solutions at 298.15 K at a phase ratio of unity. The resultant equilibrated aqueous and organic solutions were analyzed for acidity. A three-solvate model with molecular HNO3 based mechanism was assumed for nitric acid extraction by TiAP. This model was analogous to the 3-solvate model for nitric acid extraction by TBP, recently reported by authors. …

    Published in Journal of Nuclear Engineering & Technology · Vol. 5, Issue 2, 2015 · pp. 28–34 Read article

  • Published Subscription

    Estimation of Aqueous Solubility of Tri-n-Butyl Phosphate by Refractive Index Measurement at 298.15 K

    By D. Sivakumar, Shekhar Kumar, U. Kamachi Mudali

    Abstract: Presence of dissolved tri-n-butyl phosphate (TBP) in the aqueous nitric acid solutions, can lead to runaway reactions in presence of nitric acid at temperature more than 130o C. Therefore, the concentration of dissolved TBP in the aqueous nitric solutions is an important control parameter for safe operation of product/waste evaporators. The experimental measurements of refractive index of six aqueous solutions of TBP in the range of 0-400 mg/L were performed …

    Published in Journal of Nuclear Engineering & Technology · Vol. 5, Issue 2, 2015 · pp. 24–27 Read article

  • Published Subscription

    PVT Properties of Alternate PUREX diluent 4,4-Dipropyl Heptane

    By S. Balasubramonian Balasubramonian, Shekhar Kumar, D. Sivakumar, U. Kamachi Mudali

    Abstract: 4,4-Dipropyl Heptane (Hydrogenated propylene tetramer) is an alternate diluent for PUREX process, employed for reprocessing of spent nuclear fuel. Its PVT properties are not available in literature. With group contribution method, PVT properties of 4,4-dipropyl heptane were estimated and reported in this work. A corresponding- states based equation as well as Wagner constants were also reported in the range of 273.15K to critical temperature. Keywords: PVT properties, 4, 4-dipropyl heptane, …

    Published in Journal of Nuclear Engineering & Technology · Vol. 5, Issue 2, 2015 · pp. 20–23 Read article

Support