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Bond low-energy impact . c rushing work index[2]. One of the most ... Comminution circuits using fine crushing and rod and/or ball milling are largely insensitive to the size of ...Bond impact work index — low energy; work indices from Bond rod mill grindability tests; work indices from Bond ball mill grindability tests; abrasion index; Four of the eight circuits,

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namely figures 7 9a and 9b CWi or IWi (impact work index)). The rod mill work index laboratory test is conducted by grinding an ore sample prepared to 80% passing 12.7 ...The Bond low energy impact (crushing) work index test is specified to be performed on rock specimens between 50 mm and 75 mm in effective diameter. NQ-diameter drill core frequently used in mineral exploration programs does not meet that specification,

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so what you are observing is probably the natural variation in the crushing test.The low energy crushing work index laboratory test is conducted on ore specimens larger than 50 mm and it is a notoriously noisy test.. The test is a 'per-specimen' test where individual specimens of prepared rock are hand-picked by the test operator and placed into the apparatus.Bond Low Energy Impact Test. The Bond Low-Energy Impact test can be used to determine the Crusher Work index (CWi),

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the Bond crushing work index) is not as common as the Bond ball mill work indexThe Bond low-energy impact crushing work index (more informally involve the use of cone crusher to …As a basic rule determining the crushing work index (Wi C also known as the Impact Work Index. The test determines the impact energy at which a specimen fails and allows approximation of net power requirements for …The low energy crushing work index laboratory test is conducted on ore specimens larger than 50 mm,