Duško Kostić
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View article: Recovery of Titanium and Aluminum from Secondary Waste Solutions via Ultrasonic Spray Pyrolysis
Recovery of Titanium and Aluminum from Secondary Waste Solutions via Ultrasonic Spray Pyrolysis Open
The synthesis of oxide nanopowders through ultrasonic spray pyrolysis (USP) represents a sustainable method for producing high-purity, spherical particles tailored for advanced material applications. Recent developments in USP synthesis le…
View article: Removal of Iron, Zinc, and Copper Impurities from Sodium Aluminate After the Bayer Process
Removal of Iron, Zinc, and Copper Impurities from Sodium Aluminate After the Bayer Process Open
This study investigates the influence of specific surface area (SSA) and aluminum hydroxide particle size on sodium aluminate’s purification efficiency in the Bayer process. This research examines how variations in SSA affect the adsorptio…
View article: A Preliminary Assessment of the Use of Red Mud Slag for Phosphate Sorption from Aqueous Solutions
A Preliminary Assessment of the Use of Red Mud Slag for Phosphate Sorption from Aqueous Solutions Open
This paper shows the preliminary results of an investigation into the possibility of using red mud slag (RMS) for phosphate sorption from aqueous solutions. The red mud slag was obtained from red mud treatment, specifically from carbotherm…
View article: An Overview of Certified ISO 45001 OH&S Systems in the Regional Context
An Overview of Certified ISO 45001 OH&S Systems in the Regional Context Open
Occupational health and safety (OH&S) and other management systems are crucial in enhancing the operational activities of organizations in regional countries improving their public image and ensuring safety. Despite the evident advantages,…
View article: Comparative Analysis of Reduction Techniques Aiming for the Minimization of Contaminated Soil with Red Mud
Comparative Analysis of Reduction Techniques Aiming for the Minimization of Contaminated Soil with Red Mud Open
Comparative analysis of red mud reduction techniques was performed using both carbothermal and hydrogen-based reduction methods, combining thermochemical modeling and experimental validation. The reduction process is mostly important becau…
View article: Hydrogen in Treatment of Bauxite Residues
Hydrogen in Treatment of Bauxite Residues Open
This study explores pyrometallurgical and hydrometallurgical methods for decarbonizing and recovering valuable metals from bauxite residue, with direct hydrogen reduction in a rotary kiln without smelting and dissolution of solid residues …
View article: Combined Decarbonizing Technologies for Treatment of Bauxite Residues
Combined Decarbonizing Technologies for Treatment of Bauxite Residues Open
This study explores both pyrometallurgical and hydrometallurgical methods for decarbonizing and recovering valuable metals from bauxite residue, with hydrogen plasma reduction and direct acid leaching as the primary approaches. The goal is…
View article: Recovery of valuable metals from bauxite residue (BR) using decarbonizing technologies
Recovery of valuable metals from bauxite residue (BR) using decarbonizing technologies Open
Bauxite residue, also known as red mud (RM) is waste produced during alumina production in Bayer process. It is posing a significant threat to the enivorment due to its high alklalinity, fine particle size and complex structure various com…
View article: High-pressure oxygen leaching of tionite residue for titanium recovery
High-pressure oxygen leaching of tionite residue for titanium recovery Open
Tionite is a solid residue formed during the production of titanium dioxide through the chloride process. This material is acidic and contains a high concentration of titanium, which makes it a potential secondary resource for titanium rec…
View article: Influence of process parameters on the adsorption properties of zeolite 13X
Influence of process parameters on the adsorption properties of zeolite 13X Open
<p>Zeolite 13X is one of the best adsorbents among zeolites and one of the most commercially available zeolites.&nbsp; This paper investigates the influence of several process parameters on the properties of 13X zeolite, includin…
View article: High-Pressure and High-Temperature Dissolution of Titanium from Titanium and Aluminum Residues: A Comparative Study
High-Pressure and High-Temperature Dissolution of Titanium from Titanium and Aluminum Residues: A Comparative Study Open
This study presents a comparative analysis of titanium leaching from tionite (a byproduct of the titanium dioxide production process) and carbothermally reduced red mud (derived from aluminum residues). Tionites from the sulfate process an…
View article: Recovery of Titanium from Red Mud Using Carbothermic Reduction and High Pressure Leaching of the Slag in an Autoclave
Recovery of Titanium from Red Mud Using Carbothermic Reduction and High Pressure Leaching of the Slag in an Autoclave Open
Red mud is a by-product of alumina production, which is largely stored in landfills that can endanger the environment. Red mud, or bauxite residue, is a mixture of inorganic compounds of iron, aluminum, sodium, titanium, calcium and silico…
View article: Synthesis of Titanium-Based Powders from Titanium Oxy-Sulfate Using Ultrasonic Spray Pyrolysis Method
Synthesis of Titanium-Based Powders from Titanium Oxy-Sulfate Using Ultrasonic Spray Pyrolysis Method Open
Submicron and nanosized powders have gained significant attention in recent decades due to their broad applicability in various fields. This work focuses on ultrasonic spray pyrolysis, an efficient and flexible method that employs an aeros…
View article: Optimization of ultrasound-assisted extraction of (poly)phenolic compounds from blueberry (Vaccinium Myrtillus) leaves
Optimization of ultrasound-assisted extraction of (poly)phenolic compounds from blueberry (Vaccinium Myrtillus) leaves Open
The present paper aims to discover the optimal conditions for ultrasound-assisted extraction (UAE) of (poly)phenolic chemicals from blueberry (Vaccinium myrtillus) leaves. UAE was performed under the following process conditions: temperatu…
View article: A review of the red mud utilization possibilities
A review of the red mud utilization possibilities Open
Red mud, a voluminous industrial waste produced during the Bayer process in the alumina industry, has numerous application possibilities across various fields. Its potential uses are diverse, ranging from the construction industry and meta…
View article: Production of titanium dioxide nanopowders from red mud
Production of titanium dioxide nanopowders from red mud Open
Red mud, byproduct of the aluminum industry, poses a significant environmental problem due to its chemical composition and the large quantities generated. This study explores the potential for its valorization through a multi-step process …
View article: Influence of Process Parameters in Three-Stage Purification of Aluminate Solution and Aluminum Hydroxide
Influence of Process Parameters in Three-Stage Purification of Aluminate Solution and Aluminum Hydroxide Open
The influence of process parameters in the three-stage purification of aluminate solution from the Bayer process and aluminum hydroxide was considered in this paper. One of the ways of purification is treating the aluminate solution in ord…
View article: Influence of suspension heating rate on properties of zeolite 13X
Influence of suspension heating rate on properties of zeolite 13X Open
It is known that the temperature of crystallization during the synthesis of zeolite is one of the most important process parameters. However, during the research work on the synthesis of zeolite 13X and the introduction of this material in…
View article: Influence of the SiO2/Al2O3 molar ratio on the specific properties of NaA zeolite
Influence of the SiO2/Al2O3 molar ratio on the specific properties of NaA zeolite Open
The aim of this research was to determine the influence of the SiO 2 /Al 2 O 3 molar ratio on the specific commercial properties of NaA zeolite subtypes as final market products (4A,4A-AG and 4A-MS) under the real production and process co…
View article: Mathematical aspects of analysis of maximal pressure-volume work function
Mathematical aspects of analysis of maximal pressure-volume work function Open
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View article: Mathematical aspects of analysis of maximal pressure-volume work function
Mathematical aspects of analysis of maximal pressure-volume work function Open
The paper presents relation for maximal pressure-volume work for closed systems by using principles of I and II law of thermodynamics, used in reversible processes in which mechanical and thermal balance has been achieved. For full interpr…