COMPOUNDS FOR CHROMATOGRAPHIC EXTRACTION OF RARE-EARTH ELEMENTS AND S-, P-, D- METALS, METHOD OF EXTRACTION AND USE THEREOF Russian patent published in 2024 - IPC C07D401/06 C07D401/14 C07F9/6558 C07B59/00 B01D15/08 

FIELD: chemistry.

SUBSTANCE: present invention relates to use of compounds of general formula (I), where X is selected from the group consisting of H, C₁-C₆ alkyl, halogen (F, Cl, Br or I); Y is selected from a group comprising nitrogen, N-oxide; Z¹, Z², Z^m, where m denotes 1 or 2, independently selected from a group comprising -CH₂-CH₂- and -CH₂-CH₂-CH₂-; A, A^m, where m denotes 1 or 2, independently selected from H, -CH₂COOH, -CH₂C(O)NH₂, -CH₂P(O)(OH)₂ and ; n is 1 or 2; R¹, R², R³, independently, are H; and/or two adjacent R¹, R², R³ together with two adjacent carbon atoms of the aromatic ring form a six-membered ring; provided that when n denotes 2 and all Z¹, Z², Z^m represent -CH₂-CH₂-, then A is not -CH₂COOH, for chromatographic separation of rare-earth elements and/or metals of s-, p- and d-blocks. Invention also relates to a method for chromatographic separation of rare-earth elements and/or metals of s-, p- and d-blocks, to compounds of general formula (Ia).

EFFECT: technical result of invention consists in efficient and fast extraction of rare-earth elements and metals of s-, p- and d-blocks.

15 cl, 2 dwg, 2 tbl, 16 ex