Zobrazeno 1 - 10
of 16
pro vyhledávání: '"E. V. Baigacheva"'
Publikováno v:
Russian Journal of Applied Chemistry. 92:1734-1744
Heterocyclic and aromatic azo derivatives of pyrocatechol, resorcinol, and salicylic acid have been investigated as collectors for the flotation of sulfide ores. The acid-base properties of the compounds were studied, their solubility in an alkaline
Publikováno v:
Russian Journal of Inorganic Chemistry. 63:987-992
The complexation of 3-substituted-2-(aryl-,methyl)sulfonylamino-4,5,6,7-tetrahydrobenzo[ b]thiophenes with Cu(II), Co(II), and Ni(II) ions in ammonia media was studied. Different types of complexes with Cu(II) ions were found depending on pH: with a
Azo Derivatives of Phenol and 1-Naphthol as Flotation Collector of Sulfide Ore of Non-Ferrous Metals
Autor:
A. V. Radushev, V. O. Gogoshvili, L. G. Chekanova, K. O. Manylova, V. Yu. Gusev, E. V. Baigacheva
Publikováno v:
Russian Journal of Applied Chemistry. 91:573-582
Nine heterocyclic and aromatic azo derivatives of phenol and 1-naphthol were studied as flotation collectors of sulfide ores of non-ferrous metals. The constants of acid dissociation of compounds in aqueous solutions and their solubility in alkaline
Publikováno v:
Russian Journal of Inorganic Chemistry. 61:397-401
Conditions of vanadium(V) extraction from sulfuric and hydrochloric acid solutions with kerosene solutions of hydrazides and N’,N’-dimethylhydrazides derived from fractions of Versatic 10 and Versatic 1519 branched higher carboxylic acids were st
Publikováno v:
Izvestiya Vuzov Tsvetnaya Metallurgiya (Proceedings of Higher Schools Nonferrous Metallurgy. :4-9
The paper studies sulfonyl aminothiophene derivatives as potential collecting agents in ion flotation of non-ferrous metals. The study determines optimal flotation conditions of Cu(II), Co(II), Ni(II), Zn(II) and Cd(II): range of pH values, process t
Publikováno v:
Russian Journal of Inorganic Chemistry. 60:531-535
Complexation of sulfonyl derivatives of the Gewald thiophenes (SGT) with Cu(II), Co(II), Ni(II), Zn(II), and Cd(II) ions in ammonia solutions was studied. The molar ratio method, the Job’s method of continuous variation, and coductometric titration
Complexation of N-acyl-N′-(p-toluenesulfonyl)hydrazines with nonferrous metal ions in ammoniac media
Publikováno v:
Russian Journal of Inorganic Chemistry. 58:107-111
The complexation of N-acyl-N′-(p-toluenesulfonyl)hydrazines (ASHs) with copper(II), cobalt(II), nickel(II), zinc(II), cadmium(II), and silver(I) ions in ammoniac media was studied. The reagents were shown to form compounds with [M]: [ASH] ratios of
Publikováno v:
Russian Journal of Organic Chemistry. 47:230-235
By reactions of N-alkyl- and N-arylimidazoles with methyl 12-bromoacetyldehydroabietate a series of unsymmetrically substituted chiral imidazolium bromides with the abietane fragment was synthesized. The salts obtained were suggested as new N-heteroc
Publikováno v:
Russian Journal of Applied Chemistry. 83:1480-1484
Recovery of tungsten(VI) with solutions of N′,N′-dialkylhydrazides of 2-ethylhexanoic and octanoic acids in kerosene from sulfuric acid and hydrochloric media was studied. The optimal recovery conditions were determined in relation to the concent
Publikováno v:
Russian Journal of Non-Ferrous Metals. 51:8-11
The physicochemical properties (solubility, acidic-basic equilibria, stability to hydrolysis and oxidation, and kinetics of foam formation) of asymmetric 1,2-diacylhydrazines with the general formula C6H5C(O)NHNHC(O)R1 (where R1 = CH3, C2H5, and C3H7