Use of a synergistic mixture of extractants for extracting rare earth elements from an aqueous medium comprising phosphoric acid
Номер патента: EP3833789A1
Опубликовано: 16-06-2021
Автор(ы): Abla Ouaattou, Driss Dhiba, Eugen Andreiadis, Hamid Mazouz, Marie-Therese Duchesne
Принадлежит: Commissariat a lEnergie Atomique CEA, Commissariat a lEnergie Atomique et aux Energies Alternatives CEA, OCP SA
Опубликовано: 16-06-2021
Автор(ы): Abla Ouaattou, Driss Dhiba, Eugen Andreiadis, Hamid Mazouz, Marie-Therese Duchesne
Принадлежит: Commissariat a lEnergie Atomique CEA, Commissariat a lEnergie Atomique et aux Energies Alternatives CEA, OCP SA
Реферат: The invention relates to the use of a synergistic mixture of extractants for extracting at least one rare earth element from an aqueous medium comprising phosphoric acid. Said mixture comprises: - a first extractant of formula (I): wherein R 1 and R 2 , which are identical or different, represent a linear or branched, saturated or unsaturated hydrocarbon group, comprising from 6 to 12 carbon atoms, or a phenyl group optionally substituted by a linear or branched, saturated or unsaturated hydrocarbon group, comprising from 1 to 10 carbon atoms; and - a second extractant of formula (II): in which R3 represents a linear or branched alkyl group, comprising from 6 to 12 carbon atoms. The invention can be used in the treatment of phosphate minerals with a view to recovering the rare earth elements contained in said minerals.
Use of synergistic mixture of extractants for extracting rare earth elements from an aqueous medium comprising phosphoric acid
Номер патента: US12037660B2. Автор: Eugen Andreiadis,Marie-Therese Duchesne,Hamid Mazouz,Driss Dhiba,Abla Ouaattou. Владелец: Commissariat a lEnergie Atomique et aux Energies Alternatives CEA. Дата публикации: 2024-07-16.