EFFECT OF POLYMER-SURFACTANT INTERACTION ON THE HINDERED SETTLING OF MINERAL SUSPENSION
Z. Sadowski, I. Polowczyk
Department of Chemical Engineering and Heated Equipment Wroclaw University of Technology Wroclaw, Poland
This study was undertaken to investigate anionic surfactant interaction with non-ionic polymer onto the mineral surface. Poly(ethylene-oxide) PEO of MW 5.000000 and 300000 were used as a polymer, and sodium dodecylsulphate (SDS) was applicated as an anionic surfactant. The Zn-Pb fine flotation tailing used in these studies was purchased from IMN (Institute of Noniron Metals) Gliwice, Poland. Continue Reading »
Zeolitecarbon sorbents effective regulators of the processes of migration of radionuclides in the contaminated soils
D. Shvets, E. Diyuk, N. Openko
Institute for Sorption and Problems of Endoecology NAS of Ukraine.
Kiev, Ukraine
The study of the physicochemical singularities of behaviour of radionuclides in the contaminated soils is necessary for understanding the processes of its redistribution between mediums, including vertical and horizontal migration. One of the ways of change of migrations capacity of radionuclides is introduction the sorbents in the soil.
A special attention in this problem is g Continue Reading »
TITANIUM – MANGANESE OXIDES. SYNTHESIS,
PROPERTIES AND EMPLOYMENT
O. I. Pendelyuk, E. Y. Markiv, V. V. Shimanovskaya,
T. V. Lesnichaya, V. V. Strelko
Institute for Sorption & Endoecology Problems National Academy of Sciences of Ukraine, 13 General Naumov street, 03680 Kyiv-164, Ukraine
The Sr and U long time existing radioisotopes are one of the base environment pollutions after Chernobyl accident. That is why the excited interest display to the synthesis and investigations of the selective sorbents about this radioactivity elements.
In the present work Continue Reading »
ADSORPTION OF THE DYES ON MAGNESIUM HYDROXIDE
L. M. Soldatkina, А. N. Purich, V. V. Menchuk
I.I. Mechnikov State University, Odessa, Ukraine
At present for deep adsorption purifikation of wastewaters of textile, stockinet, cellulose-paper industry from dyes is used activated coal. However this adsorbent is not always effective, so long as considerable part of its porous space is inaccessible for dyes molecules, associats and micelles. Important task is a search of relation cheap, accessible and effective adsorbents for removal dyes from wastewaters.
The aim of this work was established so Continue Reading »
ZEOLITE-CONTAINING MICROSPHERES ON THE BASIS
OF UKRAINIAN KAOLIN – THEIR ADSORPTION
AND CATALYTIC PROPERTIES
K. Patrylak1, R. Likhnyovskyi1, L. Patrylak1, V. Vypyraylenko1,
R. Leboda2, J. Skubiszewska-Zięba2
1Institute of Bioorganic Chemistry and Petrochemistry of National Academy of Sciences of Ukraine; 1, Murmans’ka vul., Kyiv, 02094 Ukraine
2Department of Chemical Physics, Faculty of Chemistry, Maria Curie-Sklodowska University; 20031 Lublin, Poland
An attempt of development of microspheric zeolite-containing cracking catalyst on the basis of Ukrainian ( Continue Reading »
CYANOETHYLAMINOPROPYL SILICA AS INITIAL MATERIAL FOR CONSTRUCTION OF BONDED SUPRAMOLECULAR STRUCTURES
V. D. Oleynic, V. N. Zaitsev
Kiev National T. Shevchenko University 64 Vladimirskaya str. Kiev Ukraine
It is known that properties of chemically modified silicas depend not only from a nature of the immobilized groups, but also from their concentration and character of distribution on surface (topography). Immobilization of silanes with aliphatic amines as functional groups, results in formation of the immobilized layer with cluster topography, irrespective of concentration of modifying agent and nature of Continue Reading »