The Bond 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 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

bond grinding sindex of indonesian iron ore. Bond Tests Mining SGS. 1.2 kg of minus 6 mesh ore. Bond Ball Mill Grindability Test. The test determines the Bond Ball Mill Work Index which is used with Bond s Third Theory of Comminution to calculate net power requirements .

The bond index test obtained high 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 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 index of the

A Bond Ball Mill Work Index test is a standard test for determining the ball mill index of a sample of ore. It was developed by Fred Bond in 1952 and modified in 1961 (JKMRC CO., 2006).This index is widely used in the mineral industry for comparing the resistance of different materials to ball milling, for estimating the energy required for

Bond index is useful in designing of grinding system in mineral processing. In this study, the Bond 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

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

The index of 20.39 Kwh/s ton value obtained when granite was a reference ore is within the limit of index of some iron ores in Nigeria (Weiss, 1965 and Thomas, 2007). 4. CONCLUSION AND RECOMMENDATIONS The study shows that index of Birnin –Gwari iron ore can be taken as 28.66 Kwh/ston i.e.

The index of 20.39 Kwh/s ton value obtained when granite was a reference ore is within the limit of index of some iron ores in Nigeria (Weiss, 1965 and Thomas, 2007). 4. CONCLUSION AND RECOMMENDATIONS The study shows that index of Birnin –Gwari iron ore can be taken as 28.66 Kwh/ston i.e.

Bond index is useful in designing of grinding system in mineral processing. In this study, the Bond 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

Jan 01, 2009· 1. Introduction. A Bond Ball Mill Work Index test is a standard test for determining the ball mill index of a sample of ore. It was developed by Fred Bond in 1952 and modified in 1961 (JKMRC CO., 2006).This index is widely used in the mineral industry for comparing the resistance of different materials to ball milling, for estimating the energy required for grinding, and for ball mill

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

Procedure for determination of ball Bond index in the . ABSTRACT Laboratory studies were carried out to determine the grindability and index of ltakpe Iron ore Okane Nigeria The Bond index was measured in this study due to its reasonable application in the range of conventional ball mill and rod mill grinding as well as its wide acceptability in designing full scale mill in most

A Bond Ball Mill Work Index test is a standard test for determining the ball mill index of a sample of ore. It was developed by Fred Bond in 1952 and modified in 1961 (JKMRC CO., 2006).This index is widely used in the mineral industry for comparing the resistance of different materials to ball milling, for estimating the energy required for

The energy required to grind one tonne of an ore from a given feed size to a specified product size is a material property that needs to be determined for different ore deposits. The Bond’s index has generally been accepted as a measure of the grindability of an ore. This study used quartz as a reference ore via a comparative method to determine the Bond’s index of Baban Tsauni

Determination of Bond index of Birnin Gwari Iron Ore in. 20131224 · Determination of Bond index of Birnin Gwari Iron Ore in Nigeria K.J. Olatunji* and A.G. Durojaiye Mineral Resources Engineering Department, Kwara State Polytechnic, Ilorin, Nigeria marble and granite were used to calculate the index of iron ore.

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

Determination of Bond index of Birnin- Gwari Iron Ore in Nigeria. Keywords: Bond index, Birnin-Gwari iron ore, modified, reference minerals, most widely used parameter to measure ore grindability is the Bond index, Wi. Get p; Iron Ore Inds Vale . Check out the iron ore

Bond Ball Mill Work Index For Pure Quartz. Bond grinding index of indian iron ore nacib. Procedure for determination of ball Bond index in the . It provides the Bond Ball Mill Work Index which expresses the resistance of material to procedure for a . Get P And Support Online quartz ball mill videos tradingspacesproperties.

A Bond Ball Mill Work Index test is a standard test for determining the ball mill index of a sample of ore. It was developed by Fred Bond in 952 and modified in 96 ( JKMRC CO., 2006 ). This index is widely used in the mineral industry for comparing the resistance of different materials to ball milling, for estimating the energy required

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