Jan 10, 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

Get PriceThe 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 ,

Get PriceGrindability of granite and Iron‐ore was investigated in this work Samples were collected from Julius Berger Quarry and National Iron‐Ore Mining Company (NIOMCO), Itakpe

Get PriceThe Work Index Of The Iron Ore 2009-6-5the work indices of various iron ores in the world were measuredrom the values of the work indices of the iron ores, the powers required to grind the iron ores were estimatednd thus, the grindability of the iron ores was investigatedhe results obtained are as follows 1 the work indic Read More

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Get PriceGrindability of granite and Iron-ore was investigated in this work Samples were collected from Julius Berger Quarry and National Iron-Ore Mining Company (NIOMCO), Itakpe Particle size distribution of the samples by means of sieve shaker and

Get PriceGrindability Work Index For Iron Ore index of Leave a Message Comparative Analysis of Grindability of Iron of Grindability of Iron- ore and Granite CS Series spring cone crusher is quite excellent in hard material Flotation Machine With the development of mining industry investors present various requirements of the featur

Get Pricegrindability index, iron ore, orissa Sep 25 2010 0183 32 The influence of microwave pre-treatment ongrindabilityofiron ore OrissaIndia was investigated bygrindabilitytests SEM analysis characterized the micro-fractures in microwave treated sample This may be due to the thermal stress cracking resulted from microwave energy pre-treatmentGrindability Indexis calculated as HGGI = 13

Get PriceAfter microwave processing, the grindability of the ore was improved and the crushing strength and the Bond Work Index were reduced by 31˙2% and 18˙5%, respectively In addition to the enhanced grindability, gold was released from the matrix of the host minerals at a coarser size, resulting in a significant increase in free gold recovery by ,

Get PriceThe Bond work index is not solely a material constant but is influenced by the grinding conditions For example, the finer the grind size desired, the higher is the kWh/t required to grind to that size Magdalinovic [38] measured the Bond work index of three ore types using different test screen siz He produced a correlation between the mass of test screen undersize per revolution, G, and ,

Get PriceSep 25, 2010· Grindability test showed that the microwave treated iron ore grinds much more rapidly initially than the untreated ore As a result of microwave pre-treatment, the rate of breakage increased, which is an economically important change in grinding characteristics

Get PriceThe work index of 2039 Kwh/s ton value obtained when granite was a reference ore is within the limit of work index of some iron ores in Nigeria (Weiss, 1965 and Thomas, 2007) 4 CONCLUSION AND RECOMMENDATIONS The study shows that work index of Birnin –Gwari iron ore can be taken as 2866 Kwh/ston ie

Get PriceThis Table of Ball Mill Bond Work Index of Minerals is a summary as tested on ‘around the world sample’ You can find the SG of each mineral samples on the other table

Get Priceshaker and grindability of samples were also determined The results obtained show that weight retained varies from 3671 g to 1831 g for granite while that of iron‐ore vary from

Get PriceBond Work Index an overview ScienceDirect Topics It involves grinding 50g of the material eg coal of specified size 16–30 mesh cut in a specified ballandrace mill for 60 revolutions The amount of 200 mesh material is measured w grams and the index is defined as I 13 693 w Thus the higher the index the easier is the grinding task

Get PriceThe influence of reduction roasting and thermal shock on the grindability of a refractory low-grade Michigan iron ore was examined in bench-scale tests The quantitative effects of the various treatments were evaluated at three sieve levels, 48, 100, and 400 mesh, with ball-mill-grindability and work-index parameters as response indicators

Get PriceThe 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 ,

Get PriceWith crushed ore samples from Malmberget also grindability tests and mineral , For the future work these tests will be extended to other ore types in order , Iron Ore from Malmberget: Characterisation, Comminution and Mineral Liberation, Exploration, Resources and Mining Geology Conference, Cardiff ,

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Get PriceGrindability Work Index For Iron Ore 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 622 to 1740 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

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Get Pricegrindability work index for iron ore – Crusher South Africa Ammtec The rod mill grindability Grp is the average of the , Typical values of Bond ball mill work index for soft oxidised ore bodies , Ferric iron can further , »More detailed

Get Pricegrindability work index for iron ore - Popular Education work input and grindability for the ball mill using the above mentioned , of ore grindability are the Bond Work Index The Bond test , work index (BWi)) on the same ore when tests are , dolomite, iron ore, coal and lizenithne by using a variac

Get PriceMetallurgical ContentBasic EquationsSize Distribution and Exposure RatioEquations for Work Index VariationsWork Index and Crack Energy What is the Bond Work Index Formula-Equation? In case you had forgotten, here is a classic: You can read all the details of this now “Biblical” grinding power requirement calculation formula in Fred Bond’s original paper You can also review the step-by ,

Get PriceGrindability Tests All the three test programs determined sample hardness The test results are summarized in Table 36 Table 36 (PDF) EFFECT OF MICROWAVE TREATMENT ON THE This work studied the effect of microwave treatment on the grindabiliy of galena-sphalerite ores using iron ore of known work index as the reference ore

Get PriceThe Bond work index W i is used as a measure of grindability of an ore (Deniz, 2003; Wills and Napier-Munn, 2006) The work index expresses the resistance of the material to grinding It represents the kilowatt hours per tonne required to reduce the material from

Get PriceSelection of iron ore crusher - puntoalloggioron ore crusher selection criteria work grindabilityf ore grindability are the bond work index the bond test, and thus is useful for the design and selection of crushing, requirements and for selection of plant scale comminution, dolomite, iron ore, coal and limestone by using a variac

Get PriceAbstract Iron ore is a major mineral resource and mining is a primary industry and a major contributor to Australian economy In the iron ore industry, the size of iron ore products are required to be within the proper range for better handling, transportation and storage

Get PriceThe Work Index Of The Iron Ore 200965the work indices of various iron ores in the world were measuredrom the values of the work indices of the iron ores, the powers required to grind the iron ores were estimatednd thus, the grindability of the iron ores was investigatedhe results obtained are as follows 1 the work indic Get Price

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