SU1182052A1 - Water-soluble polyelectrolyte possessing sorption property to tungsten,vanadium and molybdenum ions - Google Patents

Abstract

A water-soluble polyelectrolyte of the formula CH2 N® (CH3) 3C1 p g with mol.m. 3010-4510, with sorbdione ability to ions of tungsten, vanadium and molybdenum.

Description

. one - , , . This invention relates to the chemistry of high molecular weight compounds, in particular, to the synthesis of water-soluble polymers, which have an adsorption ability for tungsten, vanadium and molybdenum ions, of the general formula (CHO) 3 C1 mol%. 30 103-45 103. Present polyelectrolytes can be used in hydrometallurgy to precipitate and concentrate polyvalent metals as flocculants. The aim of the invention is to obtain water-soluble polyelectrons, which have a sorption capacity for adsorbent metal ions VO. This polymer is obtained by the interaction of chloromethylated polysulfone with trimethylamine. The polymer obtained is a white powder with a mol.m., ZOCH. It dissolves well in water and organic solvents. The structure and composition of the synthesized substance were identified by means of G-spectroscopy, elemental and chemical analysis. In the G-spectrum of a polymer based on chloromethylated polysulfone with trimette shamine, there is an absorption band at 1430 cm attributable to the deformation of a methylene group of compounds with an electrone acceptor atom N. Perm. Into the reactor with cold water. and using a mechanical stirrer, load 30 g of polysulfone (mol. m) into 100 ml of sulfuric acid and add 6.7 g (0.2 M) SnC 31.5 g of MHME (3 M) and stir the reaction cm for 1 h. at room temperature. At the end of the reaction, the chloromethylated polysulfone is precipitated. The solution is washed with 4% sodium hydroxide solution and the precipitate is washed with distilled water until neutral52 the wash water reaction. The chlorine content is 17–18%, 30 g of chloromethylated polysule E background, dissolved in 1000 ml of dimethylformamide, are loaded into a three-necked flask equipped with a stirrer, thermometer, reflux condenser, heated to 50 ° C and 18.8 g (3 M) a 25% aqueous solution of trimethylamine and the reaction mixture is stirred for 2 hours. At the end of the reactions, an excess of trimethylamine was distilled off from the reaction mixture under a vacuum. The final solution is poly-. , measured polyelectrolyte is purified from trimethylamine by passing the latter through a column with cation exchanger KU-1, KU-2-20. The concentration of the p. Solution of a water-soluble poly-electrolyte is determined by the dry residue. The capacity of anion exchange resin 0.1 n. a solution of NSB 3, O mg-eq / g, (nitrogen content of 3, 9%). SOY on metals W0 986.8 mg / g, .Moo 930.0 mg / g and. VO872, 1 mg / g. Found,%: C 58.3, H3.9, S.9.0, O, 12.7, N 3.85-. Calculated,%: C 59.9, H 4.1, S 8.87, O 13.3, N 3.9. Data for different ratios of components in the amination of chloromethylated β-polysulfone at -. . are given in table.1. With increasing amine content, increasing temperature and increasing reaction time, the static exchange capacity of the ion exchanger increases, and their further increase does not lead to a change in the exchange capacity of the polyelectrolyte. . -. Table 2 presents data on the sorption capacity for ions. tungsten, vanadium and molybdenum for the proposed ion exchanger compared with the known ... From table 2 it is clear that the absorption capacity of the proposed anion exchange resin is much better known. Polyelectrolyte can be used in wastewater treatment processes, in metallurgy for the separation and precipitation of metals, for the purification of pharmaceuticals, and in agriculture as soil builders.

Ratio T, ° C Time ESR, 0.1 n.

lormethyl- (reaction to the reaction solution NSB,

N-amino acid, h mEq / g.

sulfone: amine, vani) mole

1: 3 40 1.0 2.9

1: 5 45 1.5 3.0

1: 7 50 2.0 3.0

Amine - trimethyl; amine. .

SOY, 0.1 n. EOCY mg / g IonityB eq / g1-t; -; I Mo02-J vo Known - 557.6 501.2 490.5 Proposed / 3.0,986.8,930.0 872.1

Table 1

. Table 2

Claims (1)

Water Soluble Polyelectrolyte Formulas CH ₂ N® (CH ₃ ) ₃ C1 ⁰ s mol.m. 30 · 10 ^e -45> 10 ³ , with sorption ability to ions of tungsten, vanadium and molybdenum.