how to know iron ore grade is good

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Understanding Iron Ores and Mining of Iron Ore – IspatGuru

High grade iron ores iron content greater than 62 % are simply crushed screened and shipped directly to the iron making unit e.g. blast furnace . Low grade iron ores containing lower iron content need beneficiation activities other than crushing screening and washing for increasing their iron content.

how to know iron ore grade is good

how to know iron ore grade is good. 28 Jul 2011 Iron is a common element in soils and rocks but finding it in high In 2010 iron ore overtook coal as Australia& 39;s most valuable export In general steel mills love hematite and goethite ores since they contain high grade iron more iron ore sector is not about to run out of the good stuff any time soon.

Low Grade Better Than High Grade… Tell That to My Former Teachers

The mining industry is a prime example the grade of an ore mineral or metal as well as its form of occurrence will directly affect the costs associated with mining and processing the ore. This cost of extraction must be weighed against the metal value contained in the rock to determine what ore can be processed and what ore is of too low a .

how to know iron ore grade is good

Must-know: When is the best time to get into iron ore stocks . 16 Jul 2014 . Must-know: An overview of the iron ore industry Part 3 of 13 . to the development of low-grade iron ore sources like magnetite and goethite.

Making the grade: understanding exploration results - MINING.COM

As a general rule of thumb 1 carat/tonne of ore is viewed as high-grade. The geometry is important. Diamond pipes are carrot-shaped vertically inclined bodies that come to surface and can be.

Calculation of Ore Tonnage and Grade from Drill hole Samples

Metallurgical ContentORE RESERVE CALCULATIONSMINERAL ORE RESERVE Case 1MINERAL ORE RESERVE Case 2MINERAL ORE RESERVE Case 3 The usual method of sampling mineral deposits is to drill holes and assay the sludge or core. Though the results thus obtained may not represent the true average value of the deposit it is on these results that estimates of practically all large orebodies are made. In a .

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