Heating of orthophosphoric acid to about 900°C, produces
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Chemical Engineering · all questionsFertiliser Technology
Fertiliser Technology
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A potassic fertiliser contains 50% K2O. It could be
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Liquid ammonia is not used as such a fertiliser in tropical countries like India, because
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Which one of the following is used as a nitrogenous fertiliser, as a weed killer in the onion fields and for correcting acidic soils?
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Multistage operation (as in the case of catalytic oxidation of SO2) is not carried out for NH3 synthesis, because of
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Iron is not used alone as a catalyst in ammonia synthesis, because
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Nitrogen content in ammonium sulphate (a fertiliser) is around __________ percent.
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Which of the following fertilisers contains the least percentage of nitrogen?
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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
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Reaction of anhydrous liquid ammonia with orthophosphoric acid produces
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The optimum size of the ammonia plant is __________ tons/day.
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Coal based fertiliser plants at Ramagundam (Andhra Pradesh) and Talchar (Orissa)
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Temperature and pressure in urea autoclave is
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Pick out the wrong statement.
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Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is
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Reaction of cresylic acid with __________ produces tricresyl phosphate.
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Catalyst used in steam reforming of naphtha is
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Catalyst used in steam reforming of naphtha is
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Which of the following fertilisers is required for the development of fibrous materials of the plants and of the sugar of vegetable & fruits?
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Fertiliser plant making ammonium sulphate employing gypsum-ammonia reaction (usual practice is to use ammonia and sulphuric acid) is located at
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