Physicochemical Problems of Mineral Processing

Items from 1 to 20 out of 27 results

article

Physical restrictions of the flotation of fine particles and ways to overcome them

Stoyan I. Karakashev, Nikolay A Grozev, Orhan Ozdemir, Onur Guven, more

Physicochemical Problems of Mineral Processing > 2022 > Vol. 58, iss. 5 > art. no. 153944

This work analyses the basic problems of the fine particles flotation and suggests new ways to overcome them. It is well accepted that the poor recovery of fine particles is due to the small collision rate between them and the bubbles due to the significant difference between their sizes. This common opinion is based on a theory, assuming in its first version a laminar regime, but later has been advanced...

article

Rheological behavior of sepiolite suspensions homogenized by ultra-turrax high-speed homogenizer

Hatice Tonkur, Muhammed Fatih Can, Eyüp Sabah

Physicochemical Problems of Mineral Processing > 2022 > Vol. 58, iss. 5 > art. no. 153415

The ability to disperse sepiolite suspensions is of great interest in various fields such as the production of cosmetics, pharmaceuticals, colors, etc., and in preparing the sample material for analytical purposes. In this study, the flow curves and time-dependent rheological behavior of sepiolite aqueous suspensions homogenized by Ultra-Turrax high-speed rotor-stator homogenizer were investigated...

article

Kinetic modelling of flotation column and Jameson cell in coal

Sevgi Karaca, Ali Ucar, Oktay Sahbaz

Physicochemical Problems of Mineral Processing > 2022 > Vol. 58, iss. 5 > art. no. 152848

Physical enrichment technologies can be used worldwide in various coal washing plants to enrich up to 500 μm particle size. Conversely, coals smaller than this are discarded as waste, causing storage and environmental issues. In this regard, studies on coal below 500 μm in Turkey have recently acquired attraction. The Jameson flotation cell and flotation column, which have many uses worldwide but...

article

Modeling and Box-Behnken design optimization of microwave treatment of sulphidic gold flotation tailing

Birgül Benli, Hüseyin Baştürkçü

Physicochemical Problems of Mineral Processing > 2022 > Vol. 58, iss. 5 > art. no. 149929

As raw minerals become scarcer every passing day, the need for the recovery of mine tailings becomes essential. This research highlights the use of microwave energy as a green alternative to otherwise environmentally harmful methods of ore tailing recovery. The obtained results indicate that a 1.4 ppm Au and 3.5 % S sample floated with Aeroflot 208 and Aerophine 3418A increased the concentration of...

article

Flotation of antimony ores with high arsenic content

Mustafa Özer

Physicochemical Problems of Mineral Processing > 2022 > Vol. 58, iss. 5 > art. no. 152865

Efficient evaluation of antimony ores, which are on the critical raw materials list due to the supply risk by the European Union, is an important necessity. In this context, ore preparation and enrichment processes are very important during the process from ore to metal. Especially for sulfide antimony ores, the most common beneficiation method is flotation. Therefore, antimony ore consisting of stibnite...

article

Electrokinetic and surface properties of some methacrylate-based copolymers

Bahri Ersoy, Hakan Çiftçi, Atilla Evcin, Yılmaz Merdivenci

Physicochemical Problems of Mineral Processing > 2022 > Vol. 58, iss. 5 > art. no. 152162

In this study, some electrokinetic and surface properties of MBAOM-GMA copolymers synthesized from 2-[(methoxy-1,3-benzothiazole-2-yl) amino]-2oxoethyl methacrylate (MBAOM) and glycidyl methacrylate (GMA) monomers were investigated. Accordingly, (i) pH-dependent zeta (ζ) potential changes of the copolymers were investigated under a constant ionic strength (in 1.10^-3mol/dm³ NaCl) and the corresponding...

article

Enrichment of wollastonite with high calcite content

Ceyda Şavran, Tülay Türk, Ganjinakhon Irgasheva, Murat Olgaç Kangal

Physicochemical Problems of Mineral Processing > 2022 > Vol. 58, iss. 5 > art. no. 153058

Wollastonite plays a significant role as an industrial raw material in many fields; its exclusive properties mean that it is used in ceramics, paint, metallurgy and coatings. In nature, wollastonite mostly occurs with calcite. While the most common method for separating wollastonite from calcite is calcination, flotation is one of the methods for separating two minerals in a more economic, environmentally...

article

A sensitivity analysis of kinetic characterizations in continuous flotation circuits under moderate deviations with respect to perfect mixing

Luis Vinnett, Catalina A. Pino-Muñoz, Juan Yianatos, Francisco Díaz, more

Physicochemical Problems of Mineral Processing > 2022 > Vol. 58, iss. 5 > art. no. 152420

This paper studies the effect of moderate deviations with respect to perfect mixing on the estimated kinetic parameters in industrial flotation banks. Radioactive tracer tests and mass balance surveys were performed to characterize the mixing regimes and Cu kinetic responses. For three models (Single Rate Constant, Rectangular and Gamma), two approaches to incorporate the residence time distributions...

article

Morphological analysis of organo-montmorillonites via MD simulations

Deniz Karataş, Adem Tekin, Muhammed F. Can, Zhenghe Xu, more

Physicochemical Problems of Mineral Processing > 2022 > Vol. 58, iss. 5 > art. no. 152499

Adsorption on clay surfaces has been studied intensively in recent years. The most curious subject of these studies, which are generally experimental, is how the surfactants are adsorbed at the atomic level to the surface. In this study, the adsorption of quaternary amine salt (tetradecyl dimethyl ethyl benzyl ammonium chloride–TDEBAC) to sodium montmorillonite (Na-MMT) with various cation exchange...

article

Analysis of flotation and aggregation characteristics of muscovite particles through the extended DLVO theory

Berivan Tunç, Onur Guven, Orhan Ozdemir, Mehmet Sabri Çelik

Physicochemical Problems of Mineral Processing > 2022 > Vol. 58, iss. 5 > art. no. 151789

In this study, the flotation and aggregation characteristics of muscovite mineral particles were determined as a function of dodecyl amine hydrochloride (DAH) concentration and correlated with the theoretically calculated “particle-particle” and “particle-bubble” interactions using extended DLVO theory. In this series of tests, the flotation and aggregation characteristics of the muscovite mineral...

article

Multiscale water drop contact angles at selected silica surfaces

Chen Zhang, Xuming Wang, Lixia Li, Jiaqi Jin, more

Physicochemical Problems of Mineral Processing > 2022 > Vol. 58, iss. 5 > art. no. 152154

In this study, multiscale advancing contact angles for glycerol/water drops at silica surfaces are reported for millidrops, submicron-drops, and nanodrops. Selected silica surfaces were muscovite, silicon, and talc. The contact angles for millidrops (1–2 mm) were determined by the traditional sessile drop technique. For submicron-drops (0.1–1.0 μm), a hollow tip Atomic Force Microscope (AFM) procedure...

article

Modelling of selective retention of Cd-Ni ions from aqueous solutions by polymer enhanced ultrafiltration

Muhammed F. Can, Fatma Arslan, Mehmet S. Çelik

Physicochemical Problems of Mineral Processing > 2022 > Vol. 58, iss. 5 > art. no. 151913

Polymer enhanced ultrafiltration (PEUF) technique economically enables separation and/or retention of various heavy metal ions from aqueous solutions for environmental and engineering problems. Polyethylenimine as the water-soluble complexation agent utilized to interact with heavy metal ions of Cd and Ni as cations in ultrafiltration experiments were modeled with protonation data to understand the...

article

Effect of calcite and mica contents in nepheline syenite samples on the ceramic body sintering behaviours and surface roughness

Emrah Durgut, Mustafa Cinar, Orhan Ozdemir

Physicochemical Problems of Mineral Processing > 2022 > Vol. 58, iss. 5 > art. no. 149179

In this study, the effects of calcite and mica contents in nepheline syenite (NS) samples beneficiated by high intensity dry magnetic separation and flotation methods on ceramic bodies were investigated in detail. The NS samples were, first, sintered to observe the physical and surface roughness properties, and characterized based on the change of NS samples such as color, shrinkage, water absorption,...

article

Revisiting flotation mechanisms of the selective separation of alkali feldspars in the presence of NaCl

Cengiz Karagüzel, Mehmet Sabri Çelik

Physicochemical Problems of Mineral Processing > 2022 > Vol. 58, iss. 5 > art. no. 149928

Selective separation of Na-feldspar (NaAl₃SiO₈) from K-feldspar (KAl₃SiO₈) by flotation appears to be the only alternative in commonly found mixed-type ore formations. For this purpose, various mechanisms in various studies have been proposed by which selective separation can be achieved in the presence of salt ions. These mechanisms under different flotation conditions are systematically discussed...

article

The effect of NaCl concentration on the interaction energy between feldspar minerale

Onur Güven, Muhammed Fatih Can, Cengiz Karagüzel

Physicochemical Problems of Mineral Processing > 2022 > Vol. 58, iss. 5 > art. no. 151031

The impact of the usage of monovalent ion concentration on the selective flotation of feldspar minerals has been receiving more attention in recent years. Although many experimental studies have been reported to justify its contribution to their flotation recovery, the effect of particle-particle interaction with theoretical calculations has rarely been studied. The objective of this study was, therefore,...

article

Effective circulating load ratio in mill circuit for milling capacity and further flotation process : lab scale study

Yusuf Enes Pural, Muhammed Çelik, Mustafa Özer, Feridun Boylu

Physicochemical Problems of Mineral Processing > 2022 > Vol. 58, iss. 5 > art. no. 149916

The design of the grinding circuits and the control of the transferring load in the ore preparation plants are of great importance from a technical and economic point of view. The importance of the circulating load for grinding process is well known and stated in the literature. However, there are not many studies on the effect on the following processes. In this study, the effect of the circulating...

article

Diffuse-layer surface potentials of colemanites mined in Turkey

Dilek Senol-Arslan, Jaroslaw W. Drelich

Physicochemical Problems of Mineral Processing > 2022 > Vol. 58, iss. 5 > art. no. 151933

Colemanite crystal specimens were handpicked at Kestelek, Emet (Hisarcik, Espey), Bigadic mines in Turkey for characterization of their composition and surface potential. X-ray diffraction analysis revealed no differences in mineralogical makeup of the crystals, but elemental analysis indicated differences in the type of trace (<0.1 wt%) elements. Zeta potential measurements showed small differences...

article

Relationships between comminution and chemical, petrographic and mineralogical properties of ores, and their effect on concentration

Vedat Deniz

Physicochemical Problems of Mineral Processing > 2022 > Vol. 58, iss. 5 > art. no. 149892

Especially in terms of energy costs, data on chemical, petrographical, and mineralogical analyses of ores or minerals can provide very important information for their production in the desired size distribution. Therefore, suitable crushing and grinding machines can be selected, taking into account the data affecting the comminution such as grain size, texture, metamorphism, and mineral or element...

article

Comparison of sorption capacity of biochar-based sorbents for capturing heavy-metallic ions from water media

Justyna Bąk

Physicochemical Problems of Mineral Processing > 2022 > Vol. 58, iss. 5 > art. no. 150265

To develop the sorption efficiency of heavy metals: Cd(II), Co(II), Zn(II) and Pb(II) ions the biochar was modified by chitosan, FeSO₄ and NaBH₄. The morphology, physical structure and chemical composition of the biochar based sorbents were characterized by the scanning electron miscroscopy method, N2 adsorption and desorption isotherms, X-ray diffractometry as well as the Fourier transform infrared...

article

Estimation of grade and recovery in the concentration of barite tailings by the flotation using the MLR and ANN analyses

Vedat Deniz, Yakup Umucu, Orcun T. Deniz

Physicochemical Problems of Mineral Processing > 2022 > Vol. 58, iss. 5 > art. no. 150646

This study aimed to find optimal models in a comparative framework to estimate the recovery and grade of barite concentrate obtained from the rougher flotation of the barite tailings. Therefore, firstly, the effect of four operating parameters (flotation time, pH, collector dosage, and depressant dosage) on the rougher flotation of the barite tailings containing 37.23% BaSO₄ was experimentally investigated...

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Keywords

FLOTATION (5)
ATOMIC FORCE MICROSCOPY (2)
BUBBLE SIZE DISTRIBUTION (2)
CALCITE (2)
COMMINUTION (2)
CONTACT ANGLE (2)
DLVO (2)
RHEOLOGY (2)
SEPIOLITE (2)
AIR FLOW RATE (1)
ALBITE (1)
ANN MODEL (1)
ANTIMONY (1)
ARSENIC (1)
ATTACHMENT (1)
BARITE (1)
BINDING ENERGY (1)
BIOCHAR (1)
BORON (1)
BOX-BEHNKEN EXPERIMENTAL DESIGN (1)
BSD (1)
BUBBLE COALESCENCE (1)
BULK FLOTATION (1)
CADMIUM (1)
CAPEX /OPEX/NPV (1)
CATION EXCHANGE CAPACITY (1)
CCC (1)
CERAMIC (1)
CHEMICAL PROPERTIES (1)
CHITOSAN (1)
CIRCULATING LOAD (1)
CLEARING (1)
COARSE PARTICLE (1)
COLEMANITE (1)
COLLECTORS (1)
CRITICAL COALESCENCE CONCENTRATION (1)
CRYSTALLINITY (1)
EDL FORCES (1)
ENERGY INPUT (1)
ENTRAINMENT (1)
EXPERIMENTAL INDICES (1)
FELDSPAR (1)
FINE PARTICLE FLOTATION (1)
FINE PARTICLES (1)
FLOTATION COLUMN (1)
FLOTATION KINETICS (1)
FLOTATION PERFORMANCE (1)
FLOTATION RATE DISTRIBUTION (1)
FREQUENCY OF COLLISIONS (1)
FROTH DEPTH (1)
FROTH FLOTATION (1)
GOLD-BEARING HIGH SULFIDE CONCENTRATE (1)
GRADE (1)
HAMAKER CONSTANT (1)
HEAVY METALS (1)
HOLLOW TIP (1)
HYDROPHOBIC INTERACTION (1)
HYDROPHOBICITY (1)
INDUSTRIAL FLOTATION CIRCUIT (1)
ION FLOTATION (1)
JAMESON CELL (1)
KINETICS (1)
LANKROPOL OPA (1)
M(II) IONS SORPTION (1)
MAGNETIC (1)
MAGNETIC SEPARATION (1)
MD SIMULATION (1)
MEAN PARTICLE RETENTION TIME (1)
MECHANIZM (1)
METHACRYLATE COPOLYMER (1)
MICA (1)
MICROCLINE (1)
MICROWAVE HEATING (1)
MILL CAPACITY (1)
MINERALS (1)
MLR MODEL (1)
MODELING (1)
MOLECULAR DYNAMICS SIMULATION (1)
MUSCOVITE (1)
NACL (1)
NEPHELINE SYENITE (1)
NICKEL (1)
NONLINEAR REGRESSION (1)
OPTIMIZATION (1)
ORES (1)
ORGANO-MONTMORILLONITE (1)
PARTICLE SIZE (1)
PARTICLE-BUBBLE (1)
PARTICLE-PARTICLE (1)
PEI (1)
PERFECT MIXING (1)
PETROGRAPHIC-MINERALOGICAL PROPERTIES (1)
PH (1)
PNEUMATIC FLOTATION CELLS (1)
POLYETHYLENIMINE (1)
POLYMER ENHANCED ULTRAFILTRATION (1)
PRECONCENTRATION (1)
RARE EARTH METALS (1)
RECOVERY (1)
RESIDENCE TIME DISTRIBUTION (1)
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Physicochemical Problems of Mineral Processing

Physical restrictions of the flotation of fine particles and ways to overcome them

Rheological behavior of sepiolite suspensions homogenized by ultra-turrax high-speed homogenizer

Kinetic modelling of flotation column and Jameson cell in coal

Modeling and Box-Behnken design optimization of microwave treatment of sulphidic gold flotation tailing

Flotation of antimony ores with high arsenic content

Electrokinetic and surface properties of some methacrylate-based copolymers

Enrichment of wollastonite with high calcite content

A sensitivity analysis of kinetic characterizations in continuous flotation circuits under moderate deviations with respect to perfect mixing

Morphological analysis of organo-montmorillonites via MD simulations

Analysis of flotation and aggregation characteristics of muscovite particles through the extended DLVO theory

Multiscale water drop contact angles at selected silica surfaces

Modelling of selective retention of Cd-Ni ions from aqueous solutions by polymer enhanced ultrafiltration

Effect of calcite and mica contents in nepheline syenite samples on the ceramic body sintering behaviours and surface roughness

Revisiting flotation mechanisms of the selective separation of alkali feldspars in the presence of NaCl

The effect of NaCl concentration on the interaction energy between feldspar minerale

Effective circulating load ratio in mill circuit for milling capacity and further flotation process : lab scale study

Diffuse-layer surface potentials of colemanites mined in Turkey

Relationships between comminution and chemical, petrographic and mineralogical properties of ores, and their effect on concentration

Comparison of sorption capacity of biochar-based sorbents for capturing heavy-metallic ions from water media

Estimation of grade and recovery in the concentration of barite tailings by the flotation using the MLR and ANN analyses

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