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What are the compressible cake forming materials?

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+2 votes
in Food Processing Unit Operations by (110k points)
What are the compressible cake forming materials?

(a) Sand

(b) Crystals

(c) Salt

(d) Cupric oxides

The question was asked during an interview.

The origin of the question is Resistance of the Filtering Cake topic in division Filtration of Food Processing Unit Operations

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The correct answer is (d) Cupric oxides

For explanation I would say: A filter cake is formed by metal hydroxide particles substances that are retained on a filter are called compressible cake forming materials. Examples are Ferric hydroxide, cupric oxide and aluminum oxide.

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