Prilling of urea should be accomplished (in a sprayer) just above the melting point of urea with minimum of retention time, otherwise it will result in (A) Low bulk density product (B) Biuret formation (C) Non-spherical prills (D) Substantially wet non-flowing and sticky product

Prilling of urea should be accomplished (in a sprayer) just above the
melting point of urea with minimum of retention time, otherwise it will
result in
(A) Low bulk density product
(B) Biuret formation
(C) Non-spherical prills
(D) Substantially wet non-flowing and sticky product
by

1 Answer

Answer :

(B) Biuret formation
by

Related questions

Biuret formation in urea is kept at minimum (< 1 %), because it is (A) Corrosive in nature (B) Toxic and harmful to some crops (C) Helpful in decomposition of urea (D) Explosive in nature

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Unit operation involved in the prilling of urea is (A) Evaporation (B) Drying (C) Crystallisation (D) Both (B) and (C)

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Lower temperature and large excess of ammonia in urea melt (A) Increases biuret formation (B) Decreases biuret formation (C) Is undesirable (D) Does not effect biuret formation

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Last Answer : (B) Decreases biuret formation

Yield of urea can be increased with excess ammonia and higher pressure & temperature, but because of __________ this is normally not done. (A) Increased biuret formation (B) High corrosion rate (C) Increased cost of equipment (D) All (A), (B) & (C)

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Describe the following points with respect to manufacturing of Urea. (i) Temperature (ii) Pressure (iii) Formation of Biuret

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