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Electrostatic separation of ores in its present form is generally known as the Huff process from the name of Charles H. Huff of Boston Mass. through whose constant and persistent labors (with the invention of Clinton E. Dolbear as a basis) the successful commercial process embracing separative machinery and the various electrifying devices has been developed step by step
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Grinding and separation efficiency of vertical roller mill were evaluated. In addition to these performance figures of vertical roller mill and conventional closed ball mill circuit were compared.
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Grinding and separation efficiency of vertical roller mill were evaluated. In addition to these performance figures of vertical roller mill and conventional closed ball mill circuit were compared.
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A mill is a device that breaks solid materials into smaller pieces by grinding crushing or cutting. Such comminution is an important unit operation in many processes.There are many different types of mills and many types of materials processed in them. Historically mills were powered by hand (e.g. via a hand crank) working animal (e.g. horse mill) wind or water ().
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