864 resultados para Illinois. Energy Efficiency Trust Fund Program.
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Description based on: 1979-1980.
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"July 2002"
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Cover title.
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Cover title.
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Title from cover.
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Mode of access: Internet.
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"July 1, 1973."
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Errata slip inserted.
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Prepared by Burt Barnow and Wayne Vroman.
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"Serial 102-58."
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Mode of access: Internet.
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"A chapter from Energy Security: a report to the President of the United States."
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Includes bibliographies.
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Particle breakage is an essential part of mineral processing. The aim is to reduce run of mine mineral ore to an optimal size for liberating target minerals and for subsequent recovery by separation processes such as flotation. This size reduction is typically accomplished in a series of stages in a grinding circuit tailored to the properties of the particular mine ore. Commonly this involves two or more classes of equipment starting with crushers, followed by SAG mills and then sometimes ball mills. Occasionally, high pressure grinding rolls or other novel devices are substituted. Broadly, energy consumption increases and energy efficiency decreases with the fineness of the material produced by each piece of equipment.