Method and extractant chromates present in an aqueous solution

THE INVENTION CONCERNS A PROCESS AND SOLVENT EXTRACTION CHROMATE PRESENT IN A WATER SOLUTION. According to the Invention, ON MET IN CONTACT WITH THE WATER PHASE WITH ORGANIC PHASE 2 10 VOLUME OF SOLVENT SELECTED IN THE GROUP OF TERTIARY AMINES OR QUATERNARY AND 10 TO 40 OF SOLVENT SELECTED FROM THE GROUP OF PHOSPHORIC ACID ESTERS IN THINNER BASE OIL HYDROCARBONS. APPLICATION TO CONCENTRATED SOLUTIONS OF PRODUCING cHROMATE EASILY FROM A RECYCLING EXTRACTION cHROMATE CONTAINED IN AN INDUSTRIAL SOLUTION.