Mechanical Operations
Rittinger number which designates the new surface prduced per unit of mechanical energy absorbed by the material being crushed, depends on the

Ultimate strength of the material
All of these
Elastic constant of the material
State or manner of application of the crushing force

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Mechanical Operations
A filter press is

A batch filter
Having prohibitively high maintenance cost
Not suitable, if the liquid is the main product
Not suitable for wide range of materials under varying operating conditions of cake thickness and pressure

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