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Optimum machine performance can be obtained at MC of 7.4%, RBTS of 49.1 m s-1 and SPD of 1.0 mm. At these settings, predicted values of grinding capacity, grinding recovery, and APD are 142.3 kg h ...

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Ball milling is a simple, fast, cost-effective green technology with enormous potential. One of the most interesting applications of this technology in the field of cellulose is the preparation and the chemical modification of cellulose nanocrystals and nanofibers.

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A ball mill is a type of grinder used to grind or blend materials for use in mineral dressing processes, paints, pyrotechnics, ceramics, and selective laser sintering. It works on the principle of impact and attrition: size reduction is done by impact as the balls drop from near the top of the shell. A ball mill consists of a hollow ...

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c=0.7) 41 3.1 Snapshot of the laboratory mill 44 4.1 Selection functions as obtained for three media diameters grinding mono-sized coal materials. In this case (-2360 +1700 microns) 54 4.2 Effect of ball diameter on the selection function 55 4.3 Reduced4.4

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· These parameters are the frequency ν osc, the milling ball diameter d , the milling ball filling degree Φ (Eq. 1 ), the milling beaker size, the grinding stock filling degree Φ GS (Eq. 2 ) and material properties of the grinding stock as well as of the grinding tools, such as Young´s modulus, density, hardness and heat capacity [ 12 , 26 ].

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