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A maize crop yielding 6–9 tonnes of grain per hectare (2.5 acres) requires 31–50 kilograms (68–110 lb) of phosphate fertilizer to be applied; soybean crops require about half, 20–25 kg per hectare. [21] Yara International is the world's largest producer of nitrogen-based fertilizers. [22]
An agreement for a joint venture company "Ramagundam Fertilizers And Chemicals Limited" has been signed on 14 January 2015 between National Fertilizers Limited, Engineers India Limited (EIL) and FCIL for setting up new ammonia and urea plants of 2200 MT per day and 3850 MT per day capacity respectively at the existing site of Ramagundam ...
Controlled-nitrogen-release technologies based on polymers derived from combining urea and formaldehyde were first produced in 1936 and commercialized in 1955. [3] The early product had 60 percent of the total nitrogen cold-water-insoluble, and the unreacted (quick-release) less than 15%.
The structure of the molecule of urea is O=C(−NH 2) 2.The urea molecule is planar when in a solid crystal because of sp 2 hybridization of the N orbitals. [8] [9] It is non-planar with C 2 symmetry when in the gas phase [10] or in aqueous solution, [9] with C–N–H and H–N–H bond angles that are intermediate between the trigonal planar angle of 120° and the tetrahedral angle of 109.5°.
Chemical plant cost indexes are dimensionless numbers employed to updating capital cost required to erect a chemical plant from a past date to a later time, following changes in the value of money due to inflation and deflation. Since, at any given time, the number of chemical plants is insufficient to use in a preliminary or predesign estimate ...
The plant had a production capacity of 570,000 tons per annum (TPA) and an initial construction cost of US$303 million. [12] The plant was supplied by Haldor Topsoe and was commissioned in 1982 after an additional investment of US$15 million. [12] As of 2024, FFC-I has a capacity to produce 403,000 TPA of ammonia and 695,000 TPA of urea. [13]
The issue has raised concern about a repeat of a supply crunch in 2021 when China's government effectively halted exports of urea - a type of nitrogen used as fertiliser in agriculture as well as ...
Graphite flakes can cost around US$0.9/kg carbon. [20] Price of synthetic industrial diamond for grinding and polishing can range from 1200 to 13 300 USD/kg, while cost per weight of large synthetic diamonds for industrial applications can be on the order of million dollars per kilogram. [21] 7: N: Nitrogen: 0.0012506: 19 (5.263 × 10 17 kg) 0. ...