determination bond work index of iron ore

determination bond work index of iron ore

(PDF) Characterization and Bond Work Index Determination ...

The bond work index test obtained high work index 52.60 kw.h/t and consumed power 11.72 kw.h/t to grind one ton of low grade iron ore and this attributed to the high concentration and hardness of ...

DETERMINATION OF THE BOND’S WORK INDEX OF BABAN

determination of the work index of BirninGwari iron ore in Nigeria. - A reference ore is ground for a certain time period and the power consumption recorded. An identical weight of the test ore is then ground for a length of time such that the power consumed is identical with that of the reference ore. Equation 1 gives the work index of the ...

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

The work index of 20.39 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 28.66 Kwh/ston i.e.

Characterization and Bond Work Index Determination of Low ...

Bond work index and the consumed energy [6]. Berry and Bruce (1966) discovered new method for determining the work index, the concept of this method depended on the use of a reference ore of known work index[7]. Iron ore is one of the important industrial minerals used in steel industrials. Magnetite, hematite and goethite are considered the ...

(PDF) Determination of Bond index of Birnin-Gwari Iron Ore ...

The bond work index test obtained high work index 52.60 kw.h/t and consumed power 11.72 kw.h/t to grind one ton of low grade iron ore and this attributed to the high concentration and hardness of ...

Table of Bond Work Index by Minerals

Jun 19, 2015 · This 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. Source 1

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, reference minerals; marble and granite of known weight and iron ore of known weight were ground using the ...

Determination of Work Index of Gyel-Bukuru Columbite Ore ...

The most widely used parameter to measure ore grindability is the Bond work index, W i [6]. Work index is the energy required in kWh/short-ton to reduce a given material from theoretically infinite size to 80% passing size, 100 microns [7]. The determination of work index using Bond’s method can be compared to the method of

Bond Work Index - an overview | ScienceDirect Topics

The 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 sizes. He produced a correlation between the mass of test screen undersize per revolution, G, and ...

SIMPLIFIED BOND WORK INDEX DETERMINATION By: R. O ...

Case 1. Only 2 kilograms of Chilean copper ore were available for work index de termination. The ore h.o. d already been stage-crushed to -10 mesh to be used セセ@ bEnch scale flotation tests. Even under these restric tic:H.s, it "''" still possible to calculate a work index for エィセᄋ@

Table of Bond Work Index by Minerals

Jun 19, 2015 · This 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. Source 1

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, reference minerals; marble and granite of known weight and iron ...

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, reference minerals; marble and granite of known weight and iron ore of known weight were ground using the ...

SIMPLIFIED BOND WORK INDEX DETERMINATION By: R. O ...

Case 1. Only 2 kilograms of Chilean copper ore were available for work index de termination. The ore h.o. d already been stage-crushed to -10 mesh to be used セセ@ bEnch scale flotation tests. Even under these restric tic:H.s, it "''" still possible to calculate a work index for エィセᄋ@

Effect of magnetite content on Bond work index and ...

Apr 28, 2018 · Determination of the breakage characteristics and preconditioning is important to increase the grinding efficiency. Investigations of the seismic, mechanical and breakage properties of iron oxides are very important parameters for investigating the rock fragmentation by blasting and comminution processes in iron ore mines.

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, reference minerals; marble and granite of known weight and iron ore of known weight were ground using the ...

(PDF) Rapid determination of Bond rod-mill work index by ...

Shahsavari, Procedure for determination of Bond ball work The grindability experiments was carried out on the four typical index in the commercial operations, Min. Eng. 22 (2009) 104–106. samples of copper, lead–zinc, manganese and iron ore in specified [13] L. Tavares, R. Carvalho, J. Guerrero, Simulating the Bond rod-mill grindability ...

Iron Ore Testing Apparartus - Salvin Instruments

RI/RDI Test Apparatus . Standard : IS – 8167:1989, 10823 & ISO: 4696 ; Determination of Reducibility index/low temperature reduction disintegration index by static method ; Application : Iron Oxide , Lump Ores, Sinters, and Pellets

CHARACTERIZATION OF GUJENI IRON ORE DEPOSIT,

The characterization of Gujeni iron ore was carried out in the course of this research work. The iron ore deposit is located in Gujeni village, Kagarko Local Government Area, Kaduna State.

Characterization and Bond Work Index Determination of Low ...

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QUICK METHOD FOR BOND WORK INDEXAPPROXIMATE

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

Effect of magnetite content on Bond work index and ...

DOI: 10.1007/S11771-018-3784-X Corpus ID: 139575883. Effect of magnetite content on Bond work index and preconditioning: Case study on Chadormalu iron ore mine @article{Shad2018EffectOM, title={Effect of magnetite content on Bond work index and preconditioning: Case study on Chadormalu iron ore mine}, author={Hossein Inanloo Arabi Shad and F. Sereshki and M. Ataei and M.

Up-Grading Of Agbado-Okudu Iron Ore Using Magnetic ...

the run-of-mine. Followed by determination of the work index of the ore and then separation tests using shaking table, magnetic technique and a combination of the two techniques. The results of the tests carried out revealed that the Agbadu okudu iron ore contained on the average a total iron content (38.82% FeT), 49.10% (Si02) and other element.

Determination of Bond Work Index of Lucky Cement

Determination of Bond Work Index of Lucky Cement Limestone Pakistan Niaz Muhammad Shahani, Zhijun Wan, Abdullah Rasheed Qureshi, Muhammad Ali, Naseem Ali Abstract—The Bond work index is a research methodology, which is widely used for the estimation of power required to grind the materials.

QUICK METHOD FOR BOND WORK INDEXAPPROXIMATE

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

DETERMINATION OF THE GRINDABILITY OF DARANNA

Ka´oje manganese ore work index with respect to Itakpe iron ore was executed by adopting the Berry and Bruce modified Bond work index amidst other methods; as employed in the works of Abubakar et al. (2014), Ettu et al. (2015) and Mwanga et al. (2015). This is aimed at establishing the

Rod Mill Work Index Table - Mineral Processing & Metallurgy

Jun 19, 2015 · Here is a list presented in table form of Rod Mill Work Index as tested/presented by SME handbook of mineral processing, N.L Weiss Editor, N.Y. 1985. Rapid Determination of Bond Rod-mill Work Index by Craig Taylor on Scribd

Iron Ore Testing Apparartus - Salvin Instruments

RI/RDI Test Apparatus . Standard : IS – 8167:1989, 10823 & ISO: 4696 ; Determination of Reducibility index/low temperature reduction disintegration index by static method ; Application : Iron Oxide , Lump Ores, Sinters, and Pellets

Rapid determination of Bond rod-mill work index by ...

The grinding experiments were carried out on four typical samples of iron, copper, manganese and lead–zinc ore with three test-sieves in specified time periods and aimed to shortening the procedure. Furthermore, the grinding kinetics and mass balance equations were applied to model the standard Bond rod-mill work index.

Procedure For Determination of Ball Bond Work Index in The ...

This paper discusses a simplified procedure for a rapid determination of the work index by just two grinding tests. The applicability of the simplified procedure has been proved on samples of copper and Iron ores that are located in Iran. The values obtained by this procedure do not differ by more than 7% from those obtained in the standard Bond test.

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

Determination of Bond Index of Wasagu Manganese Ore in ...

Bond’s Equation states that W = Wt= Wir (10/ ) ( ) [2] From the plot of cumulative wt% passing against particle size of the reference ore figure 1,the followings were obtained. 80% passing feed size= 1700 µm 80% passing of product= 460 µm Work index of the reference ore (Granite) = 15.14Kwh/tonne The energy expended in grinding the ore from ...

Characterization and Bond Work Index Determination of Low ...

Related papers. Page number / 7 7

Bond Work Index of a Low Grade Iron Ore & Flocculation and ...

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 ...

Bond Work Index Tables (Wi) | Rock (Geology) | Minerals

Bond Work Index Tables (Wi) - Free download as PDF File (.pdf), Text File (.txt) or view presentation slides online. Here there are given tables from various sources for the Bond work index values of mining materials (ores, industrial minerals and rocks). These work indexes can be used for the determination of tumbling mills (rod, ball mills) power.

Estimation of Grinding Time for Desired Particle Size ...

Jan 03, 2020 · A bench test was developed for dry grinding to determine the Bond work index and to know the PSD and hematite liberation in all the three iron ore product samples obtained from the BBM. For each iron ore sample, 700 cc of feed was weighed and added into the BBM. The BBM was set for 100 revolutions in the first iteration.

Crushability Workindex For Iron Ore

Selection 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.

Characterisation of the Physical and Metallurgical ...

For estimation of a Shatter Index, a dried lump iron ore sample (10 kg) of size −40 + 10 mm was dropped 4 times from a height of 2 m onto a cast iron floor (0.5 × 0.5 × 0.03 m). Thereafter, the iron ore was screened and the shatter index expressed as the wt% passing through a