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Bond Work Index - an overview ScienceDirect Topics

13 rijen  Bond impact crushability work index (CWi) (Bond, 1963) results reported for iron ores vary ...

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Table of Bond Work Index by Minerals

Silver ore: 17.0: 17.0: 13-22: 19: Slag: 10.4: 10.2: 11.3: 11.5: 11.0: 17.2: 10-27: 26: Slag iron blast furnace: 12.2: 18.3: 12-26: 8: Slate: 15.8: 14.3: 15.7: 16.0: 16.0: Sodium silicate: 14.9: 13.4: 14.7: 15.0: Spodumene ore: 11.4: 10.4: 11.4: 11.5: Steel mill nerup: 22.2: 6-89: 16: Syenite: 14.5: 13.1: 14.4: 14.5: Tale: 15.3: 8-22: 10: Tin ore: 12.0: 11.2: 10.9: 12.0: 11.5: 11.8: 10-14: 12: Titanium ore: 13.6: 11.9: 12.3: 13.6: 14.0: 11.4: 7-17: 9: Tungsten ore

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Iron ore bond work index - Grinding

Iron ore bond work index - Grinding Classification Circuits - Metallurgist Mineral Processing Engineer.

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Bond Work Index of a Low Grade Iron Ore

Bond index is useful in designing of grinding system in mineral processing. In this study, the Bond work index of a low grade iron ore is determined using modified Bond’s method. Samples of iron ore were sourced using random method. Iron ore of known weight were ground using the laboratory ball mill grinding machine. 80% passing size for the iron ore was obtained at 150m sieve size for the ...

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Characterization and Bond Work Index Determination of Low ...

Characterization and Bond Work Index Determination of Low Grade Sudanese iron Ore: a case study Mahmoud Motasim Hassan Al-Tigani 1 , Amin Al-Gak Abdueldaem 2 , Abdelshakour Awdekarim 3 ,

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Determination of Bond index of Birnin- Gwari Iron Ore in ...

Bond index is useful in designing of grinding system in mineral processing. In this study, the Bond work index of Birnin- Gwari iron ore in northern Nigeria is determined using modified Bond’s method using ‘reference ore’. Samples of iron ore were sourced using random method,

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Characterization and Bond Work Index

As well as, the Bond Work Index (BWI) and consumed power to grind one tone of iron ore were determined via standard Bond mill. The results showed that the ore is hematitic ore with Goethite and quartz minerals. The ore is low grade containing 41.41 % Fe2O3 and 50.88 SiO2.

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The Work Index of the Iron Ore - JST

(1) The work indices of the iron ores are ranged from 6.22 to 17.40. The work indices of the Santa Barbara ore, the Santa Fe ore and the Chile ore are greater than 17 and these ores are remarkably hard. The work indices of the Goa ore, the Indian ore and the

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Procedure for determination of ball Bond work

01-01-2009  The work index (Wi) is derived from the Bond formula. The work index (Wi) has been obtained for the sample of iron and copper ore following both the standard Bond procedure and the abbreviated procedure as described in this paper. The results are given in Table 1. Table 1.

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Investigation of iron ores based on the bond

01-01-2020  The Bond work index for `B' and `C' type iron ore sample are of 11 and 10 KWh/mt. The variation of BWI of three iron ore sample may be varied during the geological formation of each iron ore sample. The output product of three iron ore sample composed of three different size fractions when ground in Bonds ball mill.

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Bond Work Index of a Low Grade Iron Ore

Bond index is useful in designing of grinding system in mineral processing. In this study, the Bond work index of a low grade iron ore is determined using modified Bond’s method. Samples of iron ore were sourced using random method. Iron ore of known weight were ground using the laboratory ball mill grinding machine. 80% passing size for the iron ore was obtained at 150m sieve size for the ...

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Determination of Bond index of Birnin- Gwari Iron

Bond index is useful in designing of grinding system in mineral processing. In this study, the Bond work index of Birnin- Gwari iron ore in northern Nigeria is determined using modified Bond’s method using ‘reference ore’. Samples of iron ore were sourced using random method, reference minerals; marble and granite of known weight and iron ore of known weight were ground using the ...

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Determination of Bond index of Birnin- Gwari Iron

In this study, the Bond work index of Birnin- Gwari iron ore in northern Nigeria is determined using modified Bond’s method using ‘reference ore’. Samples of iron ore were sourced using random method, reference minerals; marble and granite of known weight and iron ore of known weight were ground using the laboratory ball mill grinding ...

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The Work Index of the Iron Ore - JST

The work indices of various iron ores in the world were measured. From the values of the work indices of the iron ores, the powers required to grind the iron ores were estimated. And thus, the grindability of the iron ores was investigated. The results obtained are as follows: (1) The work indices of the iron ores are ranged from 6.22 to 17.40.

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QUICK METHOD FOR BOND WORK INDEXAPPROXIMATE VALUE ...

Abstract: The Bond work index is a measure of ore resistance to crushing and grinding and is determined using the Bond grindability test. Its value constitutes ore characteristic and is used for industrial comminution plants designing. Determining the Bond work index

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Mahmoud Motasim, Characterization and Bond

In this study, the mineralogical, chemical characterization and physical properties of Sudanese iron ore in west of Omdurman city were studied using microscopic investigations, X-ray Diffraction analysis (XRD), X-ray Fluorescence (XRF) ...

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Bond Work Index (BWI) Test — Celtest

Celtest have the capability to carry out the Bond Work Index (BWI) Test in accordance with EPRI Report CS3612 : FGD Chemistry and Analytical Method Handbook, Volume 2 . The BWI is used to estimate the required mill power per ton of product (Specific Energy). The specific energy requirement

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CORRELATION BETWEEN BOND WORK INDEX AND

The Bond's standard ball mill is used to determine the work index value of differ ent samples. The Bond work index is defined as the kilowatt-hours per short ton required to break from infinite size to a product size of 80% passing 100 µm. If the breakage characteristics of a material remain constant over all size ranges, the calcul ated work

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Relationships between comminution J energy and product ...

Table I shows the Bond ball mill work index obtained for the ore samples as well as the iron and silica content in concentrate and tail after LIMS. The concentrate weight recovery was in the order of 50–60%. Furthermore it may be observed that the Bond ball mill work indices for the ore (Wi) varies from 14.6 to

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Razorback Iron Project Magnetite Mines

3.9 billion tonnes (JORC 2012) of iron ore Over 110 kilometres of unexplored strike 1,722 km 2 of surrounding tenements 100% owned by Magnetite Mines Limited. The Razorback High Grade Iron Ore Concentrate Project is an iron ore project in the western portion of the Braemar and is wholly owned and operated by Magnetite Mines Limited.

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Bond Work Index of a Low Grade Iron Ore

Bond index is useful in designing of grinding system in mineral processing. In this study, the Bond work index of a low grade iron ore is determined using modified Bond’s method. Samples of iron ore were sourced using random method. Iron ore of known weight were ground using the laboratory ball mill grinding machine. 80% passing size for the iron ore was obtained at 150m sieve size for the ...

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The Work Index of the Iron Ore - JST

The Work Index of the Iron Ore (1) The work indices of the iron ores are ranged from 6.22 to 17.40. The work indices of the Santa Barbara ore, the... (2) The powers of ball mill required to grind the various iron ores were calculated by Bond's equation And it is... (3) The power calculated from the ...

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Determination of Bond index of Birnin- Gwari Iron

Bond index is useful in designing of grinding system in mineral processing. In this study, the Bond work index of Birnin- Gwari iron ore in northern Nigeria is determined using modified Bond’s method using ‘reference ore’. Samples of iron ore were sourced using random method, reference minerals; marble and granite of known weight and iron ore of known weight were ground using the ...

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QUICK METHOD FOR BOND WORK INDEXAPPROXIMATE VALUE ...

Abstract: The Bond work index is a measure of ore resistance to crushing and grinding and is determined using the Bond grindability test. Its value constitutes ore characteristic and is used for industrial comminution plants designing. Determining the Bond work index

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Mahmoud Motasim, Characterization and Bond

In this study, the mineralogical, chemical characterization and physical properties of Sudanese iron ore in west of Omdurman city were studied using microscopic investigations, X-ray Diffraction analysis (XRD), X-ray Fluorescence (XRF) ...

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Bond Work Index (BWI) Test — Celtest

Celtest have the capability to carry out the Bond Work Index (BWI) Test in accordance with EPRI Report CS3612 : FGD Chemistry and Analytical Method Handbook, Volume 2 . The BWI is used to estimate the required mill power per ton of product (Specific Energy). The specific energy requirement

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CORRELATION BETWEEN BOND WORK INDEX AND

The Bond's standard ball mill is used to determine the work index value of differ ent samples. The Bond work index is defined as the kilowatt-hours per short ton required to break from infinite size to a product size of 80% passing 100 µm. If the breakage characteristics of a material remain constant over all size ranges, the calcul ated work

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Relationships between comminution J energy and product ...

Table I shows the Bond ball mill work index obtained for the ore samples as well as the iron and silica content in concentrate and tail after LIMS. The concentrate weight recovery was in the order of 50–60%. Furthermore it may be observed that the Bond ball mill work indices for the ore (Wi) varies from 14.6 to

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How the Iron Ore Market Works (VALE, RIO)

24-01-2020  Iron ore is an essential component for the global iron and steel industries. Almost 98% of mined iron ore is used in steel making. About 50 countries mine iron ore, with Australia and Brazil ...

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Iron ore - Wikipedia

Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in color from dark grey, bright yellow, or deep purple to rusty red. The iron is usually found in the form of magnetite (Fe 3 O 4, 72.4% Fe), hematite (Fe 2 O 3, 69.9% Fe), goethite (FeO(OH), 62.9% Fe), limonite (FeO(OH)n(H 2 O), 55% Fe) or siderite (FeCO ...

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Determination of Bond index of Birnin- Gwari Iron

Bond index is useful in designing of grinding system in mineral processing. In this study, the Bond work index of Birnin- Gwari iron ore in northern Nigeria is determined using modified Bond’s method using ‘reference ore’. Samples of iron ore were sourced using random method, reference minerals; marble and granite of known weight and iron ore of known weight were ground using the ...

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(PDF) A Methodology to Estimate Ores Work

The Bond work index, ... 9.7m in diameter and 4m in width, produces iron concentrates using Chadormalo ore. Each SAG mill has about 400t/h capacity which a gyratory crusher feeds them.

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Comparison of UCS to Bond Work Indices

FIGURE 8: ROD MILL/BALL MILL WORK INDEX RATIO v. UNCONFINED COMPRESSIVE STRENGTH 100 200 300 400 UCS (MPa) 0 0.5 1 1.5 2 WiRM/WiBM (metric) Siddall et al (1996) identified the ratio of Bond rod mill Work Index and ball mill Work Index as being indicative of an ore’s compentency. Figure 8 plots this ratio versus UCS; no trend is apparent ...

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Relationships between comminution J energy and product ...

Table I shows the Bond ball mill work index obtained for the ore samples as well as the iron and silica content in concentrate and tail after LIMS. The concentrate weight recovery was in the order of 50–60%. Furthermore it may be observed that the Bond ball mill work indices for the ore (Wi) varies from 14.6 to

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Studying the effect of ore texture on the Bond Work Index ...

113 Studying the effect of ore texture on the Bond Work Index at the Mahd Ad Dahab Gold Mine: a case study The Mining-Geology-Petroleum Engineering Bulletin and the authors ©, 2020, pp. 111-121, DOI: 10.17794/rgn.2020.1.9 specimens of 6.3cm diameter and 13cm length were

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Correction of Bond Ball Mill Work Index Test for Closing ...

The test work program was carried out on those five ore samples obtained from the copper-porphyry orebodies. Total of 38 Bond work index tests, including duplicates, were done. Standard Bond ball mill test procedure were carried out on crushed (-3.35 mm / 6 mesh) material at different

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How the Iron Ore Market Works (VALE, RIO)

24-01-2020  Iron ore is an essential component for the global iron and steel industries. Almost 98% of mined iron ore is used in steel making. About 50 countries mine iron ore, with Australia and Brazil ...

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modified or comparative bond ball mill

Comparative bond ball mill work index,the bond ball mill grindability test determines the bond ball mill work index used to determine net power requirements when sizing ball mills. the test is a closed-circuit, dry grindability test. It is run in a standard ball mill and can be performed at mesh sizes ranging from mesh to 400 mesh. bond ball mill work index (and modified get price

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Iron ore pricing explained Metal Bulletin

The company is also a key user of Metal Bulletin’s 62% Fe Iron Ore Index (MBIOI-62) for its mid-grade products. The days of the annual “mating season” - when steelmakers and major iron ore miners would play brinkmanship over who would give way first over setting an annual iron ore price - are long over.

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Iron Ore – Official Minecraft Wiki

14-04-2021  Iron ore is a mineral block found underground. It is smelted into iron ingots, which are used to make tools and armor. Deepslate iron ore is a variant found in the deepslate layer of the world, below y=0.[upcoming: JE 1.17 BE 1.17] 1 Obtaining 1.1 Breaking 1.2 Natural generation 2 Usage 2.1 Smelting ingredient 2.2 Note blocks 3 Sounds 4 Data values 4.1 ID 5 History 6 Issues 7 Gallery 8 ...

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