Investigation on Loss on Ignition to Study the Effect of Iron Ore
This study corroborates that the iron ore mineralogy has significant effects on green pellet growth and its properties by both experimental and mathematical arguments. In this context, three iron ore samples with different loss on ignition (LOI): 2.64, 4.85 and 9.19 wt.% were taken. The mineralogical differences were investigated through X-ray diffraction, thermogravimetric …
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International Journal of Materials Science and Engineering …
Binders and Fluxes on the Physical Properties of Iron Ore Pellets. J. Effects of Particles Sizes, Binders and Fluxes on the Physical Properties of Iron Ore ... B2, C2) and (A3, B3, C3), 15g of bentonite as binder, 10g of limestone (CaCO 3) as flux were added and mixed thoroughly with 60ml of water in palletizing disc of 40cm diameter and 10cm ...
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Utilization of Lime Fines as an Effective Binder as well as Fluxing
A laboratory study was carried out to characterize the physical, chemical and mechanical properties of lime fluxed (varying basicity 0–2) hematite iron ore pellets. Lime was used as additive as well as fluxing agent for making iron ore pellets. The effect of additives on different properties of pellets was studied. The findings show that on increasing the addition of …
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Effect of the Addition of Organic Binders on the …
This study compares the performance of two different kinds of agglomeration binders, inorganic binder (bentonite) and an organic binder of commercial use on the iron ore pellet structure.
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Characterization of Colemanite and Its Effect on Cold …
In this study, the effect of colemanite and calcined colemanite (CC) addition on the properties of iron ore pellets is studied. The pellets are prepared in a lab without and with 0.2% colemanite ...
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Effects of Binder on the Properties of Iron Ore-Coal …
For agglomeration of these fines, a suitable binder is required. Iron ore-coal composite pellets were prepared by cold bonding. Various binders such as lime, Ca(OH)2, slaked lime, dextrose ...
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Effect of adding limestone on the metallurgical properties of iron …
The addition of dolomite to iron ore pellets improves high temperature reduction properties, primarily by increasing their softening point and reducibility. This study was made …
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Utilization of Lime Fines as an Effective Binder as well as Fluxing
The preparation of fluxed iron ore pellets with high basicity (1.17) is possible without sticking at induration temperature up to 1300 °C with the help of lime as an effective binder. …
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Effect of fluxing agents on the swelling behavior of hematite pellets
In this study, the effect of adding limestone on the metallurgical properties (reducibility, swelling, cracking, softening temperature, Low-Temperature Disintegration, Cold Crushing Strength) of acid iron ore pellets was investigated using a comprehensive set of metallurgical laboratory tests.
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Effect of the Addition of Organic Binders on the Behavior of …
In pelletizing limestone fines, it has been shown to be possible to use dispersants like soda ash, for this particular case, it was possible to make use of no binder and to work only with the …
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Effect of the Addition of Organic Binders on the Behavior of …
In pelletizing limestone fines, it has been shown to be possible to use dispersants like soda ash, for this particular case, it was possible to make use of no binder and to work only with the ...
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Effect of adding limestone on the metallurgical properties of iron ore pellets
Optimized use of limestone–dolomite (1:1) improved the physical and metallurgical properties of the fluxed pellets. Owing to the depletion of high-grade iron ore quality, many …
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Improving properties of fluxed iron ore pellets with high-silica by
With rapid development of the pellet production under the background of green development, high-quality iron concentrates were gradually exhausted; thus, using high-silica iron concentrates was expected to be a promising way to relieve resource pressure for pellet production. However, increasing the proportion of high-silica acid pellets into the furnace led to …
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Analysis of the Firing Effect on the Metallurgical Properties of Iron
Abstract This article analyzes the works on optimization of the Kachkanar concentrate pellet technology. Three oxidized iron ore pellet technologies are considered. It is established that the quality of pellets can be improved by introducing pellet firing with partial hematite dissociation. The choice of the firing temperature of fluxed pellets containing …
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effect of limestone binder in iron ore pellets
of particles in organic-binder pellets can be improved by reducing the size of iron … to 3 051 N by adding 1.25% limestone to pellets … Guizhou 553028,China); Effect of … » Free online chat!
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Effect of Blaine Number on the Physical and Mechanical
Organic binders have been used to replace bentonite in the pelletizing process of iron ore. In this research, colloidal agents were evaluated in a pelletizing process comparing their influence ...
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Reducing bentonite usage in iron ore pelletization through a novel
Effect of limestone and dolomite flux on the quality of pellets using high LOI iron ore Powder Technol, 379 ( 2021 ), pp. 154 - 164, 10.1016/j.powtec.2020.10.063 View PDF View article View in Scopus Google Scholar
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Effect of organic binders on the activation and properties of indurated
In the ironmaking process, the addition of an organic binder to replace a portion of bentonite has the potential to improve the performance of pellets. The interaction between original bentonite (OB) and organic binder was investigated. Results indicated that the micromorphology of organic composite bentonite (OCB) became porous and the infrared difference spectrum …
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Effect of Blaine Number on the Physical and Mechanical
using the three different Blaine number fractions. The iron ore concentrates and different binders (bentonite, lime, limestone, and Cement) are mixed in calculated propor-tions and placed in a disk pelletizer with a 1 m diameter for pelletizing. The ratio of iron ore concentrates and binder mixture for different pellets is shown in Table 3. The ...
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Investigation of slag binders formed during the firing of iron ore pellets
Iron ore pellets are widely used in blast and metallization furnaces, where they are subjected to reduction processes. During the reduction of iron oxides, pellets lose their strength. Therefore, the search for reduction-resistant or irreducible slag binders that could provide the necessary strength of pellets during reduction processes is a highly relevant research task. …
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(PDF) Influence of Pellet Basicity (CaO/SiO2) on Iron Ore Pellet
A limited number of investigations have been done on the bonding in fluxed hematite pellets in the basicity range of 0.5 to 1.00.1–3) To understand the influence of limestone addition (Basicity) on pellet physical, metallurgical and microstructural properties basic studies have been carried out on hematite iron ore fines with limestone ...
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Effect of Application of Compressive and Shear Force on Iron Ore Pellet
Iron ore pelletizing using compressive and shear action on wet mixture feed has been studied. The physical properties, namely, moisture content, drop strength, green compressive strength (GCS), dry compressive strength (DCS), porosity, and cold crushing strength (CCS), have been studied. Pelletizing tests were carried out on four different types of …
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Effect of Blaine Number on the Physical and Mechanical …
In this study, the influence of three different binder compositions (bentonite and limestone (BLS), limestone and lime (LSL), and cement) and Blaine number on the …
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Iron Ore Pellets
Iron ore pellets, like concentrates, are raw materials for the manufacture of iron, which is pulverized and ground into pellets ranging from 0 to 100 microns for supply to industry as pellet feed. ... allolin, etc.) and is the best binder for pellet particles. In bentonite minerals, an octahedral layer of aluminum oxide is sandwiched between ...
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Effect of Adding Limestone on the Metallurgical Properties of Iron …
To better guide the industrial production, the effect of binary basicity (CaO/SiO2) on the reduction swelling behavior and mechanism of limestone fluxed iron ore pellets was …
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Effect of limestone and dolomite flux on the quality of pellets using
DOI: 10.1016/j.powtec.2020.10.063 Corpus ID: 226333476; Effect of limestone and dolomite flux on the quality of pellets using high LOI iron ore @article{Prusti2020EffectOL, title={Effect of limestone and dolomite flux on the quality of pellets using high LOI iron ore}, author={Pallishree Prusti and Kashinath Barik and Nilima Dash and S. K. Biswal and B. C. Meikap}, …
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Effect of limestone and dolomite flux on the quality of pellets using
Owing to the depletion of high-grade iron ore quality, many steel plants over the world are now using pellets after beneficiation of low grade ores as blast furnace feed. For the effective utilization of low-grade iron ore resources (59–62% Fe) with high loss of ignition (LOI), mineralogical characteristics play the vital role to improve the process efficiency. The present …
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Investigation on Loss on Ignition to Study the Effect of Iron Ore
Authors have presented the effect of iron ore mineralogy on the green pellet growth and its properties by both experimental and mathematical correlations in their earlier work [1]. It is important ...
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A review of binders in iron ore pelletization
The most common agglomeration technique is pelletization, which requires the use of binders to hold the iron oxide grains together so that the agglomerates can be sintered into high-strength pellets. Although bentonite clay is the most commonly used binder, there are many other possibilities that could be competitive in a number of situations.
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(PDF) Advances in Iron Ore Pelletizing Binders
In the production of iron ore concentrate pellets, binders are required to improve pellet green strength. ... [18][19][20][21][22][23][24][25][26][27]. Table 4. Scientific papers which investigated the effect of organic binders in iron ore concentrate pelletizing. ... at which temperatures may reach 1350 C. In these steps, the roasting of all ...
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