This work analyzes the methods of producing nitrogen and sulfur-containing fertilizer ammonium sulfate-nitrate. Under laboratory conditions, samples of nitrogen and sulfur-containing fertilizers were obtained in which the mass ratios of ammonium nitrate (NH4NO3) to ammonium sulfate (NH4)2SO4) varied from 97: 3 to 60: 40. In the samples, the pH values of a 10% solution, the beginning of temperature decomposition, strength, caking and absorbency. It is shown that the product obtained by introducing 40% ammonium sulfate into the ammonium nitrate melt contains 29.26% N (18.85% ammonia and 10.41% nitrate forms) and 9.59% S. Its granules are characterized by the following parameters: strength – 7.75 MPa, caking capacity – 1.26 kg/cm2, absorption of diesel fuel – 2.29 g in relation to 100 g of product, dissolution time in water – 116 sec., pH – 3.03 and the temperature of the beginning of decomposition – 246.3℃. At the same time, for granules of pure NH4NO3 they are 1.32 MPa, 5.62 kg/cm2, 4.82 g, 44.6 sec., 90 thermal cycles and 210℃.
2022 Mamataliyes Researching some physico chemical properties of nitrogen and sulfur containing fertilizers based on melt of ammonium nitrate and ammonium sulphate
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