Up to now, nuclear energy comes from nuclear fission of the uranium. Therefore uranium extraction is very important. Solvent extraction is one of the most important extraction methods which is widly used in production and processing of nuclear fuel and plays special role in the nuclear fuel cycle. Liquid–Liquid extraction is a method to separate compounds based on their relative solubilites in two different immiscible liquids. In the present study, leach liquor from the Bandar Abbas yellowcake production plant was used as impure aqueous solution of uranium resource and the stripping experiments were performed with sodium carbonate. In this study first impunties elements in the uranium stripping were determined, then these elements in the aqueous solution were identified and amount of each element specially the uranium was determined with ICP analysis. In stripping process, trioctylamine solvents containing uranium (product of the extraction process that obtained in the purification of leach liquor solution) is the dispersed phase of pulse packed column and sodium carbonate solution is the continuous phase of column. The effect of concentration of stripper, the ratio of the organic to the aqueous phase and pulsation intensity, the stripping of the uranium was investigated and optimal conditions for the stripping due to each factor was obtained. One hundred gr/lit of carbonate sodium solution, volume ratio of organic phase to aqueous of 4 and pulsation intensity of 3 cm/s was determined as the optimum state. This project describes the results of investigations carried out in a pulsed packed column on a pilot scale. Pulsed packed column is one of the important equipment that is applied for liquid-liquid extraction because of its high efficiency and low required space in nuclear, petrochemical and food industries. The efficiency of liquid-liquid extractors is primarily dependent on the degree of turbulence imparted to the system and interfacial area available for mass transfer. The performance of this column can be improved by mechanical pulsation of the continuous phase. Although pulsed columns use either sieve plate or packing, most reported investigations have dealt with the sieve plate type. Studies are considered on the effect of operating variables on the flooding and holdup of a pulsed packed column. The considered variables in experiments included pulsation intensity, continuous phase flow, dispersed phase flow, phase ratio and pulsation intensity on flooding and holdup were investigated. Dispersed phase holdup is one of the most important variables for the design of pulsed extraction column. The holdup is needed to calculate the interfacial area per unit volume. and the absolute phase velocities. Up to now, no research h cadonsidered the effect of height on holdup in this type of column. In this study, the variation of the dispersed phase holdup with height was studied experimentally. The results of experiments showed that with increasing pulse velocity, dispersed and continuous flow rate, flooding velocity will be decreased and with increasing pulse velocity, dispersed and continuous flow rate, dispersed phase holdup will be increased. Keywords Liquid-Liquid Extraction, Stripping, Pulsed Packed Column, Holdup, Sodium Carbonate