公开(公告)号：WO2022010758A1

公开(公告)日：2022-01-13

申请号：PCT/US2021/040229

申请日：2021-07-02

Applicant: UT-BATTELLE, LLC ,  JANSONE-POPOVA, Santa ,  POPOVS, Ilja ,  MOYER, Bruce A.

Inventor： JANSONE-POPOVA, Santa ,  POPOVS, Ilja ,  MOYER, Bruce A.

IPC: C07C235/04 ,  C22B3/26 ,  C22B3/28 ,  C22B59/00 ,  B01D11/0492 ,  C01F17/17 ,  C07C235/06 ,  C07C2601/08 ,  C07D207/08 ,  C07D207/12 ,  C07D211/42 ,  C07D211/76 ,  C22B3/282 ,  C22B7/007

Abstract: Rare earth extractant compounds having the structure of Formula (1) wherein R1, R2, R3, and R4 are independently selected from alkyl groups containing 1-30 carbon atoms and optionally containing an ether or thioether linkage connecting between carbon atoms, provided that the total carbon atoms in R1, R2, R3, and R4 is at least 12; R5 and R6 are independently selected from hydrogen atom and alkyl groups containing 1-3 carbon atoms; and provided that at least one of the conditions (i)-(iv) apply as follows: presence of a distal branched group in at least one of R1-R4 (condition i), asymmetry in R1-R4 (condition ii), presence of amine-containing ring (condition iii), or presence of lactam ring (condition iv). Also described are hydrophobic water-insoluble solutions containing at least one extractant compound of Formula (1), as well as method for extracting rare earth elements from aqueous solution by contacting the aqueous solution with the water-insoluble solution.

公开(公告)号：WO2023078989A1

公开(公告)日：2023-05-11

申请号：PCT/EP2022/080663

申请日：2022-11-03

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITE DE MONTPELLIER ,  ECOLE NATIONALE SUPERIEURE DE CHIMIE DE MONTPELLIER

Inventor： ZEMB, Thomas ,  EL MAANGAR, Asmae ,  DUHAMET, Jean ,  PELLET-ROSTAING, Stéphane

IPC: C01F17/17 ,  C01G43/00

Abstract: L'invention concerne un procédé d'extraction liquide-liquide d'au moins un sel d'un métal choisi parmi les éléments du groupe des terres rares et du groupe des actinides à partir d'une phase aqueuse acide les contenant, ledit procédé comprenant notamment une étape de mélange d'une phase aqueuse acide comprenant ledit sel dudit métal et au moins un agent hydrotrope non ionique avec une phase organique comprenant au moins un agent hydrotrope non ionique et au moins un agent extractant.

公开(公告)号：WO2022010759A2

公开(公告)日：2022-01-13

申请号：PCT/US2021/040231

申请日：2021-07-02

Applicant: UT-BATTELLE, LLC ,  BATTELLE ENERGY ALLIANCE, LLC ,  JANSONE-POPOVA, Santa ,  LYON, Kevin L. ,  POPOVS, Ilja ,  MOYER, Bruce A.

Inventor： JANSONE-POPOVA, Santa ,  LYON, Kevin L. ,  POPOVS, Ilja ,  MOYER, Bruce A.

IPC: C07C235/06 ,  C01F17/17 ,  C22B3/26 ,  C22B59/00 ,  C07C235/04 ,  B01D11/02 ,  C22B60/02 ,  B01D11/0492 ,  C07C2601/08 ,  C07D207/08 ,  C07D207/12 ,  C07D211/42 ,  C07D211/76 ,  C22B3/282 ,  C22B7/007

Abstract: A method for extracting rare earth elements from aqueous solution, comprising: (i) acidifying an aqueous solution containing said rare earth elements with an inorganic acid to result in an acidified aqueous solution containing said rare earth elements and containing the inorganic acid in a concentration of 1-12 M, wherein said rare earth elements are selected from lanthanides, actinides, or combination thereof; and (ii) contacting the acidified aqueous solution with an aqueous-insoluble hydrophobic solution comprising a rare earth extractant compound dissolved in an aqueous-insoluble hydrophobic solvent to result in extraction of one or more of the rare earth elements into the aqueous-insoluble hydrophobic solution by binding of the rare earth extractant compound to the one or more rare earth elements, wherein the rare earth extractant compound has the structure of Formula (1) provided that at least one of the conditions (a)-(d) applies.

公开(公告)号：WO2020236550A1

公开(公告)日：2020-11-26

申请号：PCT/US2020/033053

申请日：2020-05-15

Applicant: THE CURATORS OF THE UNIVERSITY OF MISSOURI

Inventor： KHODAKARAMI, Mostafa ,  ALAGHA, Lana

IPC: B01D11/04 ,  C01F17/17 ,  C22B59/00 ,  C22B3/26 ,  B01D57/00

Abstract: The present disclosure is directed to novel functionalized ionic liquids (ILs) that are used, for example, for enhanced recovery and separation of rare earth elements from aqueous solutions. The liquids and processes disclosed herein lead to greater separation efficiency, increased stability of separation materials, increased selectivity, and a reduced amount of waste materials.