The basic process for separating and isolating rare earth elements (REE) is to obtain the purity used in refining rare earth (REE) complexes and other metal ions to form mixtures / minerals.

Abstract

The process refers to the separation and isolation of rare earth elements (REEs) that are essentially pure. This process includes the following steps: dissolving a mixture containing four different REEs to create four different REE ions in the target solution; in the first zone, separating the first and second REEs which are essentially pure; and separating the first mixture of the first and second REEs from the second mixture of the four REEs. The first mixed strain is carried to the second region in the first column and the second mixed strain is sent to the second region in the second column; in the second region of the first column, the first and second REEs are separated and are essentially pure, and in the second region of the second column, the third mixed strain of the second and third REEs is separated from the fourth mixed strain of the third and fourth REEs; Send the third mixed strip to the third region in the first column and the fourth mixed strip to the third region in the second column: in the third region in the first column, separate the second and third KEEs which are essentially pure and in the third region in the second column, separate the third and fourth REEs which are essentially pure. The invention relates to a procedure for separating and isolating rare earth elements (REEs) mixed with N and essentially pure (greater than or equal to 95%).