Fertiliser Technology The concentration (weight %) of nitric acid produced by the oxidation of ammonia and absorption of nitrogen oxides with water is about __________ percent. 95 30 60 100 95 30 60 100 ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology The composition of fresh feed to the high temperature, high pressure urea autoclave is Excess liquid ammonia and liquefied CO₂ Liquid ammonia and excess compressed CO₂ Compressed ammonia gas and excess compressed CO₂ Excess liquid ammonia and compressed CO₂ gas Excess liquid ammonia and liquefied CO₂ Liquid ammonia and excess compressed CO₂ Compressed ammonia gas and excess compressed CO₂ Excess liquid ammonia and compressed CO₂ gas ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology 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 Low bulk density product Biuret formation Non-spherical prills Substantially wet non-flowing and sticky product Low bulk density product Biuret formation Non-spherical prills Substantially wet non-flowing and sticky product ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology In the manufacture of H₃ PO₄ (ortho), ; strong H₂ SO₄ leaching wet process as compared to electric furnace process Is very costly Produces lower purity acid Requires lower capital investment in the plant Uses lower grade phosphate rock Is very costly Produces lower purity acid Requires lower capital investment in the plant Uses lower grade phosphate rock ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Conversion of yellow phosphorous to red phosphorous is done by heating it in covered retorts at __________ °C in absence of air. 50-80 1000-1200 250-400 800-900 50-80 1000-1200 250-400 800-900 ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology __________ catalyst is used in the production of urea from CO₂ and NH₃. Vanadium pentoxide No Alumina Nickel Vanadium pentoxide No Alumina Nickel ANSWER DOWNLOAD EXAMIANS APP
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