HEHEHP　fractional　extraction　process　with　three　outlets　for　separation　of　Am　from　rare　earths

ＨＥＨＥＨＰｆｒａｃｔｉｏｎａｌｅｘｔｒａｃｔｉｏｎｐｒｏｃｅｓｓｗｉｔｈｔｈｒｅｅｏｕｔｌｅｔｓｆｏｒｓｅｐａｒａｔｉｏｎｏｆＡｍｆｒｏｍｒａｒｅｅａｒｔｈｓＨｅＰｅｉ－Ｊｉｏｎｇ（何培炯）；ＪｉａｏＲｏｎｇ－Ｚｈｏｕ（焦荣洲）ａｎｄＺｈｕＹｏｎｇ...

Americium is similar to light rare earths in solvent extraction by HEHEHP.So the fractional extraction process with three outlets,which is widely used on rare each industrial scale, can be applied to separate Am from La,Ce, Pr, Nd and Sm.The better process parameters can be calculated by the material and distribution balance equations stage by stage with given organic loading.In order to recover 0.99 mole fraction of Am and remove 0.90 mole fraction of light rare earths from the feed solution, in which the mole ratios of La,Ce,Am,Pr, Nd, Sin are 0.140,0.199, 0.005,0.109,0.487, 0.060, the total number of stages needed is 43,that is the extraction sector 18, first scrubbing sector 2 and second scrubbing sector 23.The fraCtional extraction process with three outlets is simpler and more convenielltthan two fractional extraction processes with two outlets.