公开(公告)号：WO2022261167A1

公开(公告)日：2022-12-15

申请号：PCT/US2022/032616

申请日：2022-06-08

Applicant: UT-BATTELLE, LLC ,  JANSONE-POPOVA, Santa ,  POPOVS, Ilja

Inventor： JANSONE-POPOVA, Santa ,  POPOVS, Ilja

IPC: C07C231/02 ,  C07C235/06 ,  C01F17/10

Abstract: A method for producing a diglycolamide molecule having the formula: (I) wherein R1 and R2 are independently selected from alkyl groups (R) and acyl groups (C(O)R) in which the alkyl groups (R) contain 1-30 carbon atoms and optionally contain an ether or thioether linkage between carbon atoms, and R5 and R6 are independently selected from hydrogen atom and alkyl groups containing 1-3 carbon atoms; and one or both pairs of R1 and R2 are optionally interconnected to form a ring; the method comprising: combining a diglycolic acid molecule (A) and a secondary amine (B) to form a salt intermediate (C), and heating the salt intermediate (C) to a temperature of 100°C to 300°C to form the diglycolamide of Formula (I) in a dehydration process, wherein the method is shown schematically: (A), (B), (C), (C), (I).

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：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.