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In the present work, Gua Indian iron ore has been chosen for aluminous effect for physical properties such as cold compressive strength and tumbler index. The effect of alumina is expressed with the help of microstructure analysis and phase grains density of silicate, hematite, and magnetite, and pore phases present in the structure of the pellet.
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The Compressive Strength of rocks is measured by crushing cylinder shaped (drill core) ore samples of 2″ x 2″ (51mm X 51mm). This techniques allows for a rock-to-rock relative …
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Compression strength of green pellets would increase from 10.5N.P-1 to 12.61N.P-1. ... in order to provide the theory basis and technical parameters for sintering and ore proportioning of high ...
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Figure 15 shows pellets with a compressive strength of 3.12 ± 0.10 kN were produced using a combination of 3 wt% sodium silicate—3 wt% SiO 2, a 6 wt% moisture …
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Strength Characteristics of Iron ore tailing Concrete Abd Latif Saleha1, Abd Rahman Mohd Samb1, Rozana Zakariac1, Mushairry Mustaffard1, Sikiru F. Oritolae1,* 1Faculty of Civil Engineering, Universiti Teknologi Malaysia, Skudai Malaysia [email protected], [email protected], e*[email protected] Keywords: Fine aggregate; iron ore tailings; …
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Suitable ore feed can be prepared by blending 'B' and 'C' type ores. The compressive strength of sintered pellets was found lower than plant samples but it was mainly due to different sintering conditions and time of sintering.
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The effect of chromite ore granulometry and sintering process parameters was evaluated to improve the metallurgical performance of pellets in a submerged arc furnace. The …
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chromite fines and recycled fines on the compressive strength of the fired and pre-reduced pellets in varying diameters were studied.6,7) ... ity chrome sinter using the Indian chromite ore fines, which will be suitable for cold handling and easy smelting in the electric arc furnace, producing ferrochrome as the final
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Intelligent modelling of unconfined compressive strength of cement stabilised iron ore tailings: a case study of Golgohar mine . ：Golgohar . . ...
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Based on the findings in Fig. 5, the compressive strength decreases with higher Fe metallization, possibly due to the reduced binder quantity and the oversized metal Fe grains. …
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Increasing ratio of coal clinker volume affected the compressive strength and water absorption of the briquettes negatively. As for the dimensional changes, bulk densities, losses due to freezing-thawing, and heat conductivity decreased and were affected positively. ... Introduction Chrome ore fines and concentrates cannot be charged directly ...
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A probable mathematical relationship between (Si/Al) ratio and (Ca/Si) ratio on the compressive strength of an iron ore tailings sample arising out of geopolymeric reactions October 2019 Journal ...
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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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(DOI: 10.1016/J.CONBUILDMAT.2020.119917) This article is published in Construction and Building Materials. The article was published on 10 Nov 2020. The article focuses on the topics: Compressive strength.
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Table 3: Summary of Compressive Strength Test Results Samples Compressive Strength @ 7-days @ 14-days @ 21-days @ 28-days A 10.70 14.64 17.64 19.22 B 7.50 11.44 14.44 16.02
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The dry compressive strength of the nuclear ore was compared with and without gangue. Figure 10 . shows the relationship between the dry compressive strength and granule size for HN+HF and .
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Large amount of the chrome ore concentration plant tailings was discarded during chrome ore mining process. The accumulation of the tailings takes large areas of land for the storage and causes ...
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WE DO IT BETTER - arm.co.za. to 2007, mining will then continue in MMZ ore body • A phased approach being considered by the JV partners ... Dwarsrivier Chrome Mine • The underground mine at Dwarsrivier has been completed six months ahead of schedule and within budget at a total cost of R187 million • Additional investigations are underway to expand run of mine …
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of High-Basicity Iron Ore Pellets JIAN-TAO JU,1,2 QI-DI LI,1 XIANG-DONG XING,1,2,4 KE MA,3 and JIAN ZU1 1.—School of Metallurgical Engineering, Xi'an University of Architecture and ... compressive strength and porosity of 15 balls were measured each time, and the average value was taken as the experimental result. We prepared
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Strength and durability of iron ore tailing materials stabilized using Portland Cement as base materials: a case study of Golgohar mine. J. Transp. Infrastruct. ... the compressive strength was strongly correlated with the ratio of porosity to volumetric cement-content, and IOT-cement (5 % and 10 %) mixtures displayed suitable durability ...
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The addition of 10% and 20% of iron ore tailings showed a decline in the compression resistance, but all the mixtures met the required strength standard for a base layer application.
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Strength tests were carried out of new heavy concretes in pressure 30 MPa. Strength values were calculated by usin equation 3 and there sults shown that in Table 8. There sults obtained showed that the new heavy concretes had a compressive strength close to the commonly used C25-30 concretes (Cui et al., 2017). These values are accepted in the ...
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The strength of iron ore pellets largely depends on slag bondsformedduringinduration. Thetypeandamountofslag ... Green compressive strength (GCS) indicates the ability of green
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The drop test, compressive strength and porosity of sintered pellet samples from plant and laboratory tests were evaluated. Mathematical correlations of the pellet properties (strength and porosity), ore granulometry and sintering parameters were determined using Statistica (ver7), statistical software package.
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Chrome ore fines and concentrates are dried to eliminate clogging of the downstream ball mill, reduce the . ... in respect of compressive strength, resistance to shattering and wear. The ...
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Ferrochrome slag is a by-product of the production of ferro-chrome alloy, an essential component in stainless steel. The conventional process of ferrochrome making involves the carbothermic reduction of chromite ore where around 1.2–1.5 tons of slag containing approximately 8–12% of chromium oxide is generated per ton of hot metal (Jena and …
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A statistical evaluation of the cured (sintered) compressive strengths proved that pellets prepared from UG2 ore are likely to have the same, or better, compressive strength than pellets prepared ...
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More recently, Pariser et al. (2018) reported that South Africa accounted for 60% of the global chrome ore (i.e., chromite) output in 2018 . Nevertheless, the growth in the FeCr industry is paralleled by chromite mining. …
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Refractoriness of chrome minerals imposes challenges during chrome ore pelletization process. This study is conducted to find suitable additives to improve chrome ore pelletization and pellet properties. ... Cryolite dosing between 0.25% to 2% in pellet mix improved pellet compressive strength by 190% (63 to184 kgf) and reduced pellet swelling ...
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Compared with ordinary magnesia chrome bricks, the magnesia chrome bricks produced by this method have low porosity, high compressive strength, load softening temperature and flexural strength. Magnesia-chrome bricks made of chrome ore-magnesite powder compacts and high-temperature calcined synthetic magnesia-chrome sands are better than other ...
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