Stroganova Е.А., Anufriyenko V.F.
FEATURES OF COPPER (II) IONS STABILIZATION IN A PHASE OF AN ANIONIT AH-31 AT SORPTION FROM THE GERMANIUM CONTAINED CHLORIDE SOLUTIONS ^{[№ 13 ' 2015]}
Anionit AN-31 is the low-basic aminofunctional anionite that defines high affinity ofd-metals ions. At the same time, due to existence of alcoholic hidroxyl groups, AN-31 shows selectivity to germanat-ions that allows to apply a sorbent in technologies of passing germanium extraction from copper solutions. Concurrent sorption of germanium and copper ions leads to receiving sorbates of difficult structure that doesn't allow to carry out full division of metals during desorption stage. Thus, the possibility of germanium, copper-containing sorbent usage is actual for optimisation of production schemes. In particular, cupriferous sorbents can be applied as catalysts of low-temperature processes. Our work is devoted to study the influence of solution composition on the way of copper ions stabilization in sorbent to indicate the catalytically active forms. Sorption was carried out at static conditions for various metals concentration, рН and ionic force of solution. The content of metals in solution was determined by the titrimetry and photometry methods. The phase of a sorbent was investigated by methods of the electronic spin resonance (EPR) and the electronic spectroscopy of diffusion reflection (ESDR). Increase of рН was shown to lead manifestation a dipole-dipolar interactions in associates of the hidroxocomplexies of copper which are localized in cavities of the polymeric matrix. Introduction of background electrolyte to solution increases hidroxocomplexes association with the exchange-connected copper ions. Presence of germanat-ions promotes strengthening of dipole-dipolar interactions of copper ions that is connected probably with concurrent sorption of metals heteronuclear complexes. Stabilization of copper ions in the phase of AN-31 is due to covalent connection of hidroxocomplexes of copper with aminogroups, and also to formation of oxidic dimers (-Cu-O-)₂,oxidic oligomers Cu_n(OH)_m and the square-planed oxidic clusters. Presenceof oxidic clusters implicits catalytic properties of a cupriferous sorbent.

Vetshtein V.O., Stroganova E.A., Shimuk A.P.
THIS ARTICLE IS AN ANALYTICAL REPORT ABOUT EXPERIMENTAL SYNTHESIS OF NOT DESCRIBED IN LITERATURE SURFACE ACTIVE AGENTS BASED ON POLYCONDENSATION REACTION OF AROMATIC HYDROCARBONS WITH ANTIPYRINE. ^{[№ 10 ' 2015]}
The article is divided into 3 sections: introduction, objects and methods of research, results and conclusions. Introduction includes relevance, theoretical and practical importance of work, common information about applying of surfactants in petrochemistry. Practical part contains schemes of the reactions and description of the expected products of synthesis. It also comprises features of new synthesis. The structure of the obtained compounds is proposed by the data of IR-spectroscopy.

Stroganova Е.А., Ulyadarova V.E.
SYNTHESIS AND RESEARCH OF STRUCTURE OF NEW FUNCTIONAL COMPOUND BASED ON 4,4-METILEN-BIS-(1,2-DIHIDRO-1,5-DIMETHYL-2-PHENIL-3-PIRAZOLONE) ^{[№ 10 ' 2015]}
The paper proposed the development of new method of synthesis of functional derivative of 1,2-dihydro-1,5-dimethyl-2-phenyl-3H-pyrazolone (antipyrine) with aliphatic and aromatic aldehydes. Compiled alleged scheme most likely reactions converting antipyrine involving glyoxal, glycolaldehyde and benzaldehyde. Based on the schema and data of IR-spectroscopy suggested the most likely structure of the product synthesis. The article has a distinct structure and includes the following sections: introduction, objects and methods, results and conclusions. In the introduction the topicality, theoretical and practical importance of work. Denotes the use of derivatives of 1,2-dihydro-1,5-dimethyl-2-phenyl-3H-pyrazolone in analytical chemistry or in a sorption extraction separation and concentration of the d-metals as well as rare and trace elements. Also emphasized the complexing ability of derivatives of antipyrine, which allows us to consider these substances as ligands in the preparation of, in particular, stable molecular magnets. Experimental part spelled out in stages. Schemes of the reactions and the synthesis of a number of possible products. Preparation of the condensation reaction was carried out by aldehydes with 1,2-dihydro-1,5-dimethyl-2-phenyl-3H-pyrazolone. The starting reagents used ethylene glycol, antipyrine and benzaldehyde. The first synthesis step was carried out the oxidation of glyoxal to ethylene glycol and an aldehyde. At the second stage reacting the resulting product of benzaldehyde and oxidation with 1,2-dihydro-1,5-dimethyl-2-phenyl-3H-pyrazolone under acidic conditions. In the third phase synthesis was carried condensation product separation and purification of the substances. Personality synthesis product installed on the melting temperature range. By IR-spectroscopy to determine the nature of the functional groups. On the basis of the proposed schemes is most likely the reactions and data infrared spectrum proposed structure of the substance.

Stroganova Е.А., Sherstobitova T.Y., Ovechkin М.V.
STUDY OF CR-MIL-101 SORPTION CAPACITY RELTIVELY TO IONS OF COPPER ^{[№ 10 ' 2015]}
Sorption properties of the metalloorganic coordination polymer (MCP) on the basis of a tereftalat of Cr-MIL-101 chrome (III) in relation to copper (II) ions are studied. Influence рН on a charge of the taken ion, and also equilibrium parameters of sorption (the full static exchange capacity (FSEC), distribution coefficient, selectivity coefficient) is defined. It is shown that MKP can be applied in processes of sorption concoction of copper (II) from water solutions in wide area рН, but the greatest capacity of a sorbent is observed at pH = 8. This supervision can be explained with introduction in large cavities of a framework of metalloorganic polymer of mix of polynuclear ions (Cu₂(OH)₂²⁺, Cu₂(OH)³⁺, Cu₃(OH)₄²⁺) and the oligomers of molecular oxidic clusters of copper. This assumption is confirmed by experimentally established total fractional charge of the taken particles, and also data of the electronic microscopic analysis of cupriferous samples of a sorbent. Results of work allow to consider metalcomplex Cr-MIL-101 polymer as a sorbent carrier of large hydrolytic forms of copper.

Stroganova E.A.
RESEARCH OF THE MINERALIZATION EFFECT ON EQUILIBRIUM ADSORPTION OF GERMANIUM IONS FROM POOR SOLUTIONS USING ANION-EXCHANGE RESIN AN-31 ^{[№ 10 ' 2013]}
The effect of various kinds and concentrations of a mineral background of aqueous solutions on equilibrium adsorption of germanium ions using anion-exchange resin AN-31 were investigated. Working pH areas of resin using at sorption of germanium ions from chloride and sulphatic solution were established. The equilibrium adsorption data was analyzed using Langmuir isotherms. The most important equilibrium constants of germanium adsorption from solutions of various ionic forces were calculated. The factors of selectivity and charges of extracting germanium forms were found. It is offered a selectivity range of competing ions.