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CO2. Direct dissolution and extraction of oxides of uranium viz. UO2 and U3O8 was performed. UO2 and U3O8 powders (0.02–0.05 g) along with 2 ml of TBP–HNO3 complex were taken in extraction vessel and CO2 was fed until 150 atm. pressure and 60°C temperature were achievable. After 20 min uraniu ...
Desalination 232 (2008)

... (III) to oxalic acid recovery has been presented. An improvement in the second cycle of patented process flow-sheet based on 1.5 M D2EHPA + 0.2 M TBP incorporating oxalic acid scrubbing / recycle for uranium recovery from phosphoric acid has been tested and found to be simple in terms o ...
Desalination 232 (2008)

... of permeability coefficients for uranium transport have been compared for different diluents. Keywords: Uranium; Transport; Diluent; SLM; D2EHIBA; TBP 1. Introduction The membrane based separation processes have gained attention in the past few decades essentially due to their efficiency fo ...
Desalination 232 (2008)

... acid by reactive extraction (present in concentration range of 0.05–0.4 kmol/m3 in the aqueous phase) was studied using tri-n- butyl phosphate (TBP) in different diluents (n-heptane, petroleum ether and toluene). Extraction using pure diluents was found to be poor. Using the mixtures o ...
Desalination 244 (2009)

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