شماره ركورد كنفرانس :
4518
عنوان مقاله :
Uranium Recovery from Isfahan’s UCF Plant Solid Waste Using a Pulsed Sieve-Plate Column
Author/Authors :
Fatemeh Hanifpour Department of Energy Engineering, Sharif University of Technology , Marziye Moazen Department of Energy Engineering, Sharif University of Technology , Ahad Ghaemi Nuclear Science and Technology Research Institute, Tehran, Iran , Mohammad Taghizadeh Nuclear Science and Technology Research Institute, Tehran, Iran , Mohammad Samadfam Department of Energy Engineering, Sharif University of Technology
كليدواژه :
Uranium , Solvent Extraction , D2EHPA , Pulsed Sieve-Plate Column
عنوان كنفرانس :
The 7th International Chemical Engineering Congress & Exhibition (IChEC 2011
چكيده لاتين :
During UF6 production in Isfahan’s UCF plant, liquid waste containing uranium compounds, is
directed to evaporation lagoons. Gradually, a considerable amount of precipitation will form at the
bottom of the lagoons. Uranium concentration in this precipitation is in the order of a few weight
percent. So it seems that uranium recovery from this waste is not only economically advantageous,
but also environmentally protective. In this study, uranium extraction via solvent extraction process
and by means of di-(2-ethyl hexyl)phosphoric acid (D2EHPA) as extractant, is first studied in batch
scale to optimize the extraction parameters and then the data is used on a pilot plant which is a
pulsed column with sieved trays to optimize the operational parameters of the column
