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Fertiliser Technology

Fertiliser Technology
__________ is required more for leafy crops.

Nitrogen
Potassium
Carbon
Phosphorous

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Fertiliser Technology
In the manufacture of H₃ PO₄ (ortho), ; strong H₂ SO₄ leaching wet process as compared to electric furnace process

Is very costly
Requires lower capital investment in the plant
Uses lower grade phosphate rock
Produces lower purity acid

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Fertiliser Technology
In natural gas, the C/H ratio (by weight) varies in the range of

43894
15-17
44053
20-25

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Fertiliser Technology
An increase in the NH₃/CO₂ ratio in urea manufacture results in

Decreased yield of urea
Decreased specific volume of molten mass
Increased degree of conversion of CO₂ to urea
Decreased degree of conversion of NH₃ to urea

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Fertiliser Technology
Commercial fertilisers are available mostly in the form of

Grannules
Lumps
Flakes
Powder

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Fertiliser Technology
Catalyst used in desulphurisation of naphtha is

Silica gel
Nickel
Pt-Rh
Co-Mo

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