SORPTION KINEITICS OF URANIUM
BY TITAN-CONTAINING SORBENTS
V. V. Strelko, T. S. Psareva, O. I. Zakutevsky
Institute for sorption and problems of Endoecology of National Academy of Sciences, 13 General Naumov street, 03680 Kyiv-164, Ukraine
The object of study was the sorption of uranium by the titan-containing sorbents of the following composition: Ti-P, Ti-Si-P and Ti-Si. An optimal proportion of components that provide for the most complete extraction of the uranium from the water solution was determined in the course of the series of experiments.
It was found out Continue Reading »
PALLADIUM(II) SORPTIVE SEPARATION by MODIFIED CLINOPTILOLITE
T. Ya. Vrublevs¢ka, O. Ya. Korkuna
Ivan Franko Lviv National University,
Kyryla and Mefodiya Str. 6, 79005 L\’viv, Ukraine
The problem of concentrating trace amounts of platinum metals remains unresolved at present. Analysis of investigated object is so difficult because of present of large amounts of basic component and small concentration of Pd(II). Such kinds of concentration as extraction, co-precipitation and chromatografphic separation are necessary in those analyses. Literary date Continue Reading »
BONDED WATER IN SUSPENSIONS
OF CARBOSILES AND SILICA MODIFIED
WITH THE ADSORBED PEG MOLECULES
V. V. Turov1, R. Leboda2, V. M. Gun`ko1, J. Skubiszewska-Zięba2
1Institute of Surface Chemistry, NAS, Pr.Nauki 31, 252022 Kiev, Ukraine
2Dep. of Chemical Physics, Faculty of Chemistry, Maria Curie-Skłodowska University, Pl. Marii Curie-Skłodowskiej 3, 20-031 Lublin, Poland
The plot of gS = f(CPEG) dependence for all adsorbents is shown in Fig.1.
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DYnamics of the breaking up coagUlating structures of the titanium dioxide dispersions
V. P. Zakordonskyi, A. V. Synyts’ka, O. B. Les’kiv, M. M. Soltys
Ivan Franko National University of L’viv, Chemical Department,
Kyryla & Mefodiy Str. 6, L’viv, 79005, Ukraine,
E-mail: soltys@franko.lviv.ua
the rheological behaviour of aqueous and modificated by surfactant (sodium dodecylbenzolesulfonate) (DDBS) titanium dioxide dispersions depending on content solid phase and composition of dispersion medium has been investigated by rotational viscosimetry method.
It was sho Continue Reading »
THE STUDIES OF ADSORPTION AND POROSITY PROPERTIES
OF NATURAL ZEOLITE SAMPLES BY MEANS OF THERMAL ANALYSIS AND SORPTOMETRIC METHODS
P. Staszczuk1, V. O. Vasylechko2, T. Danielkiewicz1, M. Matyjewicz1
1Maria Curie-Sklodowska University, Chemistry Faculty
M. Curie-Sklodowska Sq. 3, 20-031 Lublin, Poland
2Ivan Franco National University of L’viv, Department of Analytical Chemistry Kyrila & Mephodiya Str. 6, 79005 Lviv, Ukraine
The natural zeolites were know in ancient Egypt as building material. Zeolites story started in the 18th cetaury. In 1756 the Swedi Continue Reading »
THE INFLUENCE OF THE ALKYLAMMONIUM CHLORIDES HYDROCARBON RADICAL LENGTH ON THEIR ADSORPTION
BY FLOTATION CARRIERS
E. A. Streltsova, L. D. Skrylev, A. F. Tymchuk, E. A. Hromysheva
Odessa State University I.I. Mechnikov, Ukraine
The analysis of the experimental investigations devoted to the studying of the regularities of the surfactants adsorption by solid carriers (adsorbents) shows that in some cases with the increasing of the surfactant hydrocarbon radical length their adsorption on the carriers surface at first increases and then decreases. The reasons of such influence of the surfactant Continue Reading »