Fertiliser Technology Yield of urea can be increased with excess ammonia and higher pressure & temperature, but because of __________ this is normally not done. All of these High corrosion rate Increased biuret formation Increased cost of equipment All of these High corrosion rate Increased biuret formation Increased cost of equipment ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology In the manufacture of orthophosphoric acid by strong H₂SO₄ leaching wet process, keeping the reactor temperature above 100°C, results in the formation of undesriable CaSO₄ .½H₂O and CaSO₄ crystals Metaphosphoric acid All of these Pyrophosphoric acid CaSO₄ .½H₂O and CaSO₄ crystals Metaphosphoric acid All of these Pyrophosphoric acid ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Which of the following gasifiers can be attached to coal based fertiliser plants? Gasifier working at 40 atm Lurgi (high pressure) gasifier Gasifier working at 20 atm Kopper-Totzek gasifier Gasifier working at 40 atm Lurgi (high pressure) gasifier Gasifier working at 20 atm Kopper-Totzek gasifier 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 Excess liquid ammonia and compressed CO₂ gas Liquid ammonia and excess compressed CO₂ Compressed ammonia gas and excess compressed CO₂ Excess liquid ammonia and liquefied CO₂ Excess liquid ammonia and compressed CO₂ gas Liquid ammonia and excess compressed CO₂ Compressed ammonia gas and excess compressed CO₂ ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Conversion achieved in HNO₃ synthesis with the use of platinum catalyst is about 95-97%. The rate of formation of nitrogen dioxide from the oxidation of nitric acid is favoured by Decreasing the pressure Decreasing the temperature None of these Increasing the temperature Decreasing the pressure Decreasing the temperature None of these Increasing the temperature ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Triple superphosphate which contains about 46% P₂O₅ is produced by the reaction of phosphate rock with ortho phosphoric acid of____percent concentration. 25-28 > 98 75-80 52-54 25-28 > 98 75-80 52-54 ANSWER DOWNLOAD EXAMIANS APP
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