PRODUCTION OF LIME-AMMONIUM NITRATE BASED ON CHALK, NITRATE AND AMMONIUM SULFATE

Authors

O.X. Rasulov, Institute of General and Inorganic Chemistry of the Academy of Sciences of the Republic of Uzbekistan Address: 77-a, Mirzo Ulugbek str., 100170, Tashkent, Uzbekistan
Abdurasul Mamataliyev, Institute of General and Inorganic Chemistry of the Academy of Sciences of the Republic of Uzbekistan Address: 77-a, Mirzo Ulugbek str., 100170, Tashkent, Uzbekistan E-mail: abdirasul.86@mail.ru, Phone: +998-90-980-25-07.Follow
M.X. Dadaxodjaeva, Institute of General and Inorganic Chemistry of the Academy of Sciences of the Republic of Uzbekistan Address: 77-a, Mirzo Ulugbek str., 100170, Tashkent, Uzbekistan
Sh.S. Namazov, Institute of General and Inorganic Chemistry of the Academy of Sciences of the Republic of Uzbekistan Address: 77-a, Mirzo Ulugbek str., 100170, Tashkent, Uzbekistan, E-mail: igic@rambler.ruFollow
B.M. Beglov, Institute of General and Inorganic Chemistry of the Academy of Sciences of the Republic of Uzbekistan Address: 77-a, Mirzo Ulugbek str., 100170, Tashkent, Uzbekistan E-mail: begloff@mail.ruFollow

Abstract

The article studies the process of obtaining carbonate-ammonium nitrate (CAN) based on the mixing of melt ammonium nitrate (NH₄NO₃) with chalk (СаСО₃) and ammonium sulfate (NH₄)₂SO₄). For the granulation of nitrate-sulfate-carbonate melt the prilling method is applied using a granulation tower. Determined the composition and properties of new types of fertilizers. It is shown that with the ratio NH₄NO₃ : СаСО₃ : (NH₄)₂SO₄ = 100 : 24 : 1 the product contains 28,03% N, SO₃ – 0,50%, 10% СаО and has a granule strength of 6,03 MPa, which is much higher than the strength of pure NH₄NO₃ granules (1,32 MPa). Porosity and absorption of pure AN granules is 22,0% and 4,82 g. With an increase in the proportion of chalk and ammonium sulfate to the NH₄NO₃ : СаСО₃ : (NH₄)₂SO₄ = 100 : 24 : 1 ratio, the porosity and absorbency of the LAN granules is 6,11% and 2,57g, respectively. It was revealed that the use of the (NH₄)₂SO₄, СаСО₃ additive in the NH₄NO₃ melt at a mass ratio of NH₄NO₃ : СаСО₃ : (NH₄)₂SO₄ = from 100 : 2 : 0,5 to 100 : 58 : 2 allows to increase the strength and temperature of the onset of decomposition of the nitrate granules by 2-6,7 and 1-1,3 times and reduce the porosity by 2,7-4,8 2 times.

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Recommended Citation

Rasulov, O.X.; Mamataliyev, Abdurasul; Dadaxodjaeva, M.X.; Namazov, Sh.S.; and Beglov, B.M. (2021) "PRODUCTION OF LIME-AMMONIUM NITRATE BASED ON CHALK, NITRATE AND AMMONIUM SULFATE," Chemical Technology, Control and Management: Vol. 2021: Iss. 2, Article 1.
DOI: https://doi.org/10.51346/tstu-02.21.1-77-0001