In wet process (strong sulphuric acid leaching) for the manufacture of orthophosphoric acid the dilute orthophoric acid (40%) is obtained from travelling pan vacuum filter. The dilute orthophosphoric acid (50%) is concentrated economically 75% orthophosphoric acid by using

Fertilizer Technology Mcqs

A.an evaporator
B.a distillation column
C.an extractor
D.an adsorption column

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