Process for the elimination of accumulated iron in organic phases of fluid-fluid extraction that contain di-2-ethyl-hexyl phosphoric acid

摘要

The present invention refers to a process for the elimination of accumulated iron in organic phases of fluid-fluid extraction that contain di-2-ethyl-hexyl phosphoric acid, by means of its treatment by direct contact with an acid aqueous solution of chloride ions, which is subsequently subjected to the action of an anionic ion exchanger that extracts the iron and leaves it iron-free for its re-utilization, and the regeneration of the anionic exchanger by means of treating it with water, purifying the iron from the system in the form of a relatively concentrated ferric chloride aqueous solution.