Results 31 to 40 of about 32,757 (297)

A Novel Flux That Determines the Physico-Chemical Properties of Calcined Diatomite in Its Industrial Use as a Filler and Filter Aid: Thenardite (Na2SO4)

open access: yesCrystals, 2022
Diatomite needs to go through the flux-calcination process in order to increase its functionality in some specific applications such as filter aids.
Orkun Ersoy   +3 more
doaj   +1 more source

The influence of clay additives in Portland cement on the compressive strength of the cement stone

open access: yesИнженерно-строительный журнал, 2015
The introduction of mineral additives to binders, especially to Portland cement, is one of the promising trends for solving the resource and energy saving problems, as well as problems of environmental protection during production and application ...
A.R. Gaifullin   +2 more
doaj   +1 more source

Calcination of Nickel Mud [PDF]

open access: yesResearch Papers Faculty of Materials Science and Technology Slovak University of Technology, 2017
Abstract Different characterizations were carried out on uncalcinated nickel mud and samples calcined in the temperature range of 200–600 °C. In the present paper, the phase composition and structure transition of the nickel mud heated from room temperature are indicated by SEM, EDX analysis and Fourier transform infrared spectroscopy ...
Marcel Kuracina   +4 more
openaire   +2 more sources

Synthesis of ZnO Nanoparticles by Precipitation Method with Their Antibacterial Effect

open access: yesIndonesian Journal of Chemistry, 2016
The aim of this study was to synthesize and characterize Zinc oxide nanoparticles (ZnO-NPs) prepared by precipitation method. Zinc nitrate and sodium hydroxide was used as starting materials with biopolymer pectin as capping agent.
Muhammad Fajri Romadhan   +2 more
doaj   +1 more source

Negative Effect of Calcination to Catalytic Performance of Coal Char-loaded TiO2 Catalyst in Styrene Oxidation with Hydrogen Peroxide as Oxidant

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2018
The research of negative effect of calcination to catalytic performance of coal char-loaded TiO2 catalyst in styrene oxidation with hydrogen peroxide as oxidant has successfully done.
Mukhamad Nurhadi   +2 more
doaj   +1 more source

Impact of calcination technology on properties of calcined clays

open access: yesRILEM Technical Letters
Calcined kaolinitic clays are known to be very reactive pozzolans, and combined with limestone can enable significant clinker substitution in cementitious systems. Thermal activation of kaolinitic clays takes place when the hydroxyl groups are removed, leading to formation of an amorphous reactive structure.
José Fernando Martirena Hernández   +5 more
openaire   +2 more sources

Sol–Gel Synthesis of Ca2.5Ag0.3Sm0.2Co4O9 Semiconducting Materials for Thermoelectric Applications in Aerospace Systems

open access: yesAdvanced Engineering Materials, EarlyView.
Ca2.5Ag0.3Sm0.2Co4O9 semiconductor materials are synthesized and produced in this study using the sol–gel and cold pressing techniques for thermoelectric generator applications. As template samples are added, the Seebeck coefficient and power factor values rise, peaking at 800 °C for Ca2.5Ag0.3Sm0.2Co4O9 at 274.47 μV K−1 and 0.58 mW mK−2, respectively.
Enes Kilinc   +4 more
wiley   +1 more source

Effects of calcination temperatures on structural, functional, morphological, and magnetic properties of strontium ferrite (SrFe2O4) nanoparticles

open access: yesKuwait Journal of Science, 2023
In this proposed work, the strontium ferrite (SrFe2O4) nanoparticles were successfully synthesized in the presence of strontium nitrate (Sr (NO3)2) and ferric nitrate (Fe (NO3).9H2O) as primary sources by using chemical co-precipitation method.
T. Sivanandan, Sigamani Saravanan
doaj   +1 more source

Ag Cluster‐Modified K0.5Na0.5NbO3 Piezocatalyst for Enhanced Electrochemical Dinitrogen Reduction Reaction

open access: yesAdvanced Engineering Materials, EarlyView.
Ag cluster‐modified K0.5Na0.5NbO3 acts as an efficient piezocatalyst for electrochemical N2 reduction, enhanced by built‐in electric fields under mechanical actuation. Comparative studies between static and actuated electrodes reveal improved performance under dynamic conditions.
Benedict Witulski   +7 more
wiley   +1 more source

Bacterial leaching of Pb -metallurgical wastes [PDF]

open access: yesMetalurgija, 2011
The aim of this paper is verification of application of bacterial leaching and calcination to recover heavy metals from metallurgical wastes - matte from metallurgical plant Kovohute Pribram.
P. Fecko   +3 more
doaj  

Home - About - Disclaimer - Privacy