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Prikaz rezultata 11-20 od 682
Influences of synthesis methods and modifier addition on the properties of Ni-based catalysts supported on reticulated ceramic foams
(Springer, New York, 2014)
A method of synthesizing Ni-based catalysts supported on alpha-Al2O3-based foams was developed. The foams were impregnated with aqueous solutions of metal chlorides under an air atmosphere using an aerosol route. Separate ...
Dobijanje visokog sadržaja SiO2 kombinovanim postupcima mikronizacije i elektromagnetne separacije / Obtaining of high content of Si02 by combining procedure of micronization and electromagnetic separation
(Savez inženjera i tehničara Srbije, Beograd, 2007)
U radu su prikazani rezultati laboratorijskih ispitivanja mogućnosti dobijana visoko kvalitetnog koncentrata SiO2 iz ležišta kvarcnog šljunka na području Lajkovca - Srbija. Cilj ispitivanja je dobijanje proizvoda primenljivog ...
X-ray diffraction and SEM analysis of waste sulfur modification for use in concretes
(Univerzitet u Beogradu - Rudarsko-geološki fakultet, Beograd, 2021)
Secondary sulfur obtained as a by-product in the oil refining process is a major problem as an environmental pollutant. One of the possibilities of environmental protection is the use of sulfur obtained in this way as a ...
Inorganically modified diatomite as a potential prolonged-release drug carrier
(Elsevier, Amsterdam, 2014)
Inorganic modification of diatomite was performed with the precipitation product of partially neutralized aluminum sulfate solution at three different mass ratios. The starting and the modified diatomites were characterized ...
Removal of lead from aqueous solutions by using the natural and Fe(III)-modified zeolite
(Elsevier, Amsterdam, 2012)
In the present study, the sorption of lead by the natural and Fe(III)-modified zeolite (clinoptilolite) is described. The characterization of the natural zeolite-rich rock and the Fe(III)-modified form was performed by ...
Recycling of silver-plated brass for production of high purity copper and ultrafine silver powder for electric contacts
(Bulgarian Academy of Sciences, 2014)
The paper presents an improved process for recycling of silver-plate brass housing. Silver and copper are recovered with a purity of 99.99 % and 99.90 %, respectively, with the aim of obtaining materials of higher value ...
Potentiostatic oxidation of AgCu50 alloy in alkaline solution in the presence of chlorides
(Pergamon-Elsevier Science Ltd, Oxford, 2013)
SEM and EDS analyses of AgCu50 alloy were performed after potentiostatic oxidation in an alkaline solution in the presence or absence of chloride ions. Oxidation in pure alkaline solution was favoured on the portion where ...
Evaluation of Adsorption Efficiency on Pb(II) Ions Removal Using Alkali-Modified Hydrochar from Paulownia Leaves
(MDPI, 2023)
In this study, hydrothermal carbonization (HTC) at five temperatures (180, 200, 220, 240,
and 260 C) was applied to transform Paulownia leaves (PL) into a carbonaceous sorbent of Pb(II)
from aqueous solutions. To enhance ...
Developing thermal insulation cement-based mortars with recycled aggregate in accordance with Net Zero principles
(Belgrade : Association for ETRAN Society, 2024)
The performance of thermo-insulation rendering mortars with alternations in ratios
of powdered cordierite and talc was examined. The goal was to confirm that recycled
kilnware cordierite can be reapplied in the mortar ...
Influence of type and quantity of filler on change of density of sulfur concrete
(University of Belgrade - Faculty of Mining and Geology, 2023)
Concrete is a material that has been used for centuries and is often modified using polymers. In the last fifty years, synthetic polymers have been used for the modification of concrete, but also for the production of ...