METHOD OF GROUP CONCENTRATION FROM ACID SOLUTIONS AND SEPARATION OF IONS OF ELEMENTS BY IONIC LIQUID Russian patent published in 2017 - IPC C02F1/26 G01N31/00 G01N33/18 B01D11/04 

FIELD: chemistry.

SUBSTANCE: to carry out the method of group concentration from acidic solutions and the separation of Ti, Mo, Sn, Fe ions to 10 ml of the aqueous phase of the acid solution to be analyzed, 1 g of fusible melt of antipyrinium acetylsalicylate [AntH₃O⁺]⋅[AcSal^-] is added, the concentrate of Ti, Mo, Sn, Fe ions is separated, nitric acid is nitrated in a microwave oven and analyzed by atomic emission spectrometry. To expand the spectrum of the ions - Ti, Mo, Sn, Fe, V, Cr, Pb, Cd, Co, Sb, Mn extracted from the acidic aqueous solution - with a low-melting antipyrinium acetylsalicylate melt to 5 ml of the analyzed solution, 5 ml of 2.0 M solution of sodium chloride is added with the same amount - 1 g of antipyrinium acetylsalicylate. The resulting system is heated to 90°C, shaken for 5 minutes, centrifuged, the elemental ion concentrate is extracted, aspirated and analyzed.

EFFECT: method provides an effective group extraction of a wide range of elements.

2 dwg, 2 tbl, 1 ex