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Reduction behavior and crushing strength of carbon-containing iron ore ...

2015.10.1  The reduction behavior and crushing strength of carbon-containing iron ore sinters (SI–C) prepared from coke oven gas (COG) tar have been examined with a

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Experimental study on crushing strength and Young’s

2020.12.1  In the current work, Taguchi experimental design was applied to investigate the effect of moisture content, hydrated lime addition, and magnetite

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Phase and Microstructural Characterization of Iron Ore Pellet

2016.8.3  The first results from the conjoined application of these techniques show that the cold crushing strength of the pellet increase with the decrease of porosity, the

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Toward the influence of iron oxide morphology on the

2018.8.17  The present study demonstrates the effect of the different morphological types on the cold crushing strength (CCS) of heat-treated iron ore pellets. Blends with

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Standard Test Method for Determination of Crushing Strength of Iron Ore ...

2020.8.6  Scope. 1.1 This test method describes a method for determining the crushing strength of fired iron ore pellets and direct-reduced iron. Cylindrical

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Effect of Binders on the Crushing Strength of Ferro-Coke

2021.2.10  When the amount of iron ore was 30%, the crushing strength of ferro-coke dropped to 18.15%. Among the four binders, coal tar pitch could significantly enhance

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Direct reduction of fluxed iron ore pellets made from coarse iron ore ...

2022.3.3  Hardened pellets were characterised using cold crushing strength and porosity. Reduced pellets were characterised using XRD and SEM. It was observed that

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(PDF) Phase and Microstructural Characterization of Iron Ore

2016.6.20  The first results from the conjoined application of these techniques show that the cold crushing strength of the pellet increase with the decrease of porosity, the

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Crushing strength index of ferro-coke with different amounts of iron ore.

The crushing strength of ferro-coke with different amounts of iron ore is shown in Figure 6. Without iron ore, QM had the highest crushing strength, which was 92.25%. ...

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ISO 4700:2015(en), Iron ore pellets for blast furnace and

This International Standard concerns one of a number of physical test methods that have been developed to measure various physical parameters and characteristics and to evaluate the behaviour of iron ores, including reducibility,

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Optimization of Pellet Plant Straight Grate Induration

2022.8.18  Indian iron ores are suffering from high amounts of alumina and loss on ignition (LOI), which are deleterious constituents in both the pelletizing as well as iron making processes. Iron ore fines utilized in pellet making consist of alumina in the range of 3.20–3.35% and LOI in the range of 3.50–3.70%. Detailed palletization studies have

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Phase and Microstructural Characterization of Iron Ore Pellet

2016.8.3  The first results from the conjoined application of these techniques show that the cold crushing strength of the pellet increase with the decrease of porosity, the appearance of the fayalite, as well as the presence of magnetite-unoxidized. KEYWORDS: Cold crushing strength test; EBSD; iron ore pellet; microstructures; Acknowledgments.

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Reduction behavior and crushing strength of carbon-containing iron ore ...

2015.10.1  The reduction behavior and crushing strength of carbon-containing iron ore sinters (SI–C) prepared from coke oven gas (COG) tar have been examined with a quartz-made fixed bed reactor and with a tensile and compression testing machine, respectively. When an as-received iron ore sinter (SI) is heated at 10 °C/min up to 600 °C in 55% H 2

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Investigation on reduction of cement binder in cold bonded ...

1997.2.1  Research and Development centre for Iron and Steel, Steel Authority of India Limited, established the suitability of cement bonded iron ore pellets as burden material for low and moderate shaft furnaces (Minerals and Metals Review, 1981). The pellets exhibiting crushing strength of around 130–160 kg/pellet were prepared by using around

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Metals Free Full-Text Effect of Iron Ore Pellet Size on ...

2022.2.10  In this study, the effect of pellet size on the metallurgical properties of magnesia iron ore pellets was investigated. Reduction and softening behaviour, cold crushing strength and low-temperature reduction-disintegration were determined separately for pellets sized 8–10 mm, 10–12.7 mm, 12.7–16 mm, and 16–20 mm.

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Toward the influence of iron oxide morphology on the

2020.1.2  ABSTRACT The present study demonstrates the effect of the different morphological types on the cold crushing strength (CCS) of heat-treated iron ore pellets. Blends with different iron ore oxides morphologies were subjected to grinding, filtering and pot grate tests on industrial scale trials. Results of grinding tests showed the hematite

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Preparation of Iron Ore Micro-pellets and Their Effect on

2018.6.13  At present around 6–7% of iron ore slimes, out of total production, are being generated and accumulated at iron ore mine sites of National Mineral Development Corporation Limited, India. The accumulated slimes of finer size and relatively inferior grade should be utilized in an economical way for sustainable mining. These slimes can be

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Effect of TiO2 on the Crushing Strength and Smelting

2016.3.21  The effect of TiO2 on the crushing strength for high-Cr V-Ti magnetite pellets was studied in this paper. On one hand, the crushing strength obviously decreased with the increasing TiO2 contents. On the other hand, the crushing strength had an obvious increase after grinding treatment for the high-Cr V-Ti magnetite and titanium concentrate.

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Experimental study on crushing strength and Young’s

2020.12.1  The contributions of three operating parameters (moisture content, hydrated lime addition, magnetite concentrate substitution) to the crushing strength and Young’s modulus of granules in each stage of iron ore sintering were studied by applying the Taguchi method. The results indicated that the strength properties of the iron ore

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Influence of Pellet Size on Quality and Microstructure of

In・Vence of Pellet Size on Quality and Microstructure of Iron Ore Pellets. 1. Introduction. The feed to a blast furnace or shaft furnace should form a permeable bed of material, permitting gas ・Pw through it uniformly at a high rate. Powdered iron ore concentrates are not suitable in their as-produced form because; ・]es tend to pack into ...

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Mechanism of thermal compressive strength evolution of

2024.5.27  The raw materials were dried at 120 °C for 24 h in a forced-air drying cabinet, followed by ball milling of the iron ore and anthracite. The size distribution characteristics of the raw materials after crushing are presented in Table 3.It can be clearly seen that both iron ore concentrate and anthracite powder exhibit a wide range of particle

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IS 8625: Determination of crushing strength of

2013.9.11  Title of Legally Binding Document: Determination of crushing strength of iron ore pellets Number of Amendments: 1 Equivalence: Superceding: Superceded by: LEGALLY BINDING DOCUMENT Step

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ASTM International - ASTM E382-12 - Standard Test Method

1.1 This test method describes a method for determining the crushing strength of fired iron ore pellets. Cylindrical agglomerates, briquettes, and reduced pellets are not covered by this test method. 1.2 The values as stated in SI units are to be regarded as the standards. The values in parentheses are given for information only.

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Characteristics of Conventional and Microwave Sintered Iron Ore

2022.4.4  In this study, compacted hematite (Fe2O3) preforms were made and sintered at various temperatures, such as 1250 °C and 1300 °C, using both conventional and microwave sintering methods. The density, porosity, microhardness, cold crushing strength, microphotographs, and X-ray diffraction (XRD) analysis of the sintered preforms

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Utilization of Kimberlite as Binder for Iron Ore Pellet Making

2021.5.30  The green crushing strength (GCS) of green iron ore pellet was determined by equipment of maximum load capacity 500 N (50 kg) with least count 0.01 N (10 g) . During determination of GCS, 10% of pressure drop after attainment of max load is taken as breaking or rupture point. The conventional drop number test was used for measurement

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Study and Implementation of Quality Improvement

2015.11.13  parameters like cold crushing strength and shatter index of iron ore pellets are very critical for their handling and use. Cold crushing strength (CCS) of iron ore pellets varies widely from as low as 80 Kgf / pellets to as high as 350 Kgf /pellets depending upon the input material quality and the process variables. The

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Effect of adding limestone on the metallurgical properties of iron ore ...

2015.8.10  In the test, 50 pellets (10–12.5 mm) from each initial pellet sample were compressed using crushing strength test equipment. 4. Results. A series of metallurgical tests were carried out on the pellets in order to find out the effect of adding limestone on the metallurgical properties of acid iron ore pellets. 4.1. Reducibility

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Iron ore pellets for blast furnace and direct reduction

2021.1.26  ISO 3082, Iron ores — Sampling and sample preparation procedures ISO 11323, Iron ore and direct reduced iron — Vocabulary 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 11323 apply. 4 Principle A single pellet of a specific size range is compressed at a specific speed. The procedure is

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Direct reduction of fluxed iron ore pellets made from coarse iron ore ...

2022.3.3  Iron ore fines were classified into three size ranges (SR1(−0.25 + 0.1), SR2(−0.1 + 0.05) and SR3(−0.05)mm). Pellets of the above material were prepared using lime as a binder for basicity 0, 1 and 2 respectively, to observe hardening and reduction behaviour. Hardened pellets were characterised using cold crushing strength and porosity.

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ISO 4700:2015 - Iron ore pellets for blast furnace and direct

ISO 4700:2015 Iron ore pellets for blast furnace and direct reduction feedstocks — Determination of the crushing strength Published (Edition 4, 2015) This standard was last reviewed and confirmed in 2021.

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Toward the influence of iron oxide morphology on the

2018.8.17  Request PDF Toward the influence of iron oxide morphology on the grinding and filtration processes and on the cold crushing strength (CCS) of heat-treated iron ore pellets The present study ...

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Effect of Lime coating of iron ore pellets on Iron

2013.12.10  Jan 2009. ISIJ INT. The Effect of Lime Coating of Hematite Pellets on Soot Formation and Reduction Rate with CH4 /H2 by Arman Rabieifari and Nasser Towhidi ISIJ International, Vol.49 (2009)

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Studies on Highly Fluxed Iron Ore Pellets Hardened at 1100

2019.1.24  The behaviors of highly fluxed (basicity 2, 4, 6, and 8) iron ore pellets heat hardened in the temperature range 1100 °C to 1200 °C were examined and are reported here. The highly fluxed (basicity 8) pellets exhibited 103 kg/pellet crushing strength and 43.65 pct porosity when heat hardened at 1180 °C. During heat hardening, calcium di

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Characterization of Colemanite and Its Effect on Cold

2020.10.16  The strength of iron ore pellets is an important property which represents their ability to withstand the load during storage and handling, and the load of the burden material in the reduction furnace. ... Silva CJ (2016) Phase and microstructural characterization of iron ore pellet and their relation with cold crushing strength test. Min ...

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Cold crushing strength of pellets at medium tem- perature

Iron ore pellets not only have excellent metallurgical and mechanical properties but are also essential raw materials for improving iron and steel smelting in the context of the increasing global ...

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Effect of Binders on the Crushing Strength of Ferro-Coke.

2021.2.10  When the amount of iron ore was 30%, the crushing strength of ferro-coke dropped to 18.15%. Among the four binders, coal tar pitch could significantly enhance the cold crushing strength of ferro-coke through decreasing the porosity of ferro-coke and improving the bonding effect between carbon matrix particles.

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(PDF) Effects of Binder on the Properties of Iron Ore

2010.4.1  enhance the crushing strength of cold bonded iron ore-coal composite pellets for subsequent use. in rotary kiln and found that the crushing strength of the pellet significantly improved as 50, 100 ...

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Salvin Instruments

2019.9.29  Determination of Crushing strength of Iron Ore Pellets ; Compact automatic machine capable of 250 pellet test in 50 mins ; Linder Test Apparatus . View Project. Linder Test Apparatus . Standard : ISO- 11257:2015, ISO 13930:2015 ; Low-Temp Reduction disintegration index degree of metallization;

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Phase and Microstructural Characterization of Iron Ore Pellet

2016.8.3  ABSTRACT In the production of the pellets, phase identification for specific sintering condition is of prime importance in understanding the basis for the production and the required properties. The application of a methodology involving optical and scanning electron microscope equipped with an EBSD opened a broad possibility to establish a

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