Chemical Engineering :: Mechanical Operations
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Separation of solid particles based on their densities is called
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Activators are those chemicals which help buoying up one mineral in preference to the other in the froth floatation process. Which of the following is an activator?
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__________ are mixed using ribbon blenders.
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During agitation of liquids, the
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For crushing of solids, the Rittinger's law states that the work required for crushing is proportional to
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In a size reduction crushing operation, feed size is 300 to 1500 mm while the product size is 100 to 300 mm. This is a case of the __________ crushing.
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As per Taggart's formula, the capacity (kg/hr) of Jaw & Gyratory crushers (for gapes of 10 to 60 cms) is equal to (where, L = Length of feed opening, cms S = Maximum width of discharge opening, cms )
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The process by which fine solids is removed from liquids is termed as
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Which of the following crushing laws is most accurately applicable to the fine grinding of materials ?
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Shell and leaf filter as compared to plate and frame filter
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A.
Froude number is independent for the curves between power number and Reynolds number in baffled system.
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B.
Power number becomes independent of impellers Reynolds number at high Reynolds number, but is dependent on the geometry of the impeller.
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C.
Froude number is used to account for the effect of surface (e.g., the centre vortex) on the power number.
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D.
all (a), (b) and (c).
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