Thermodynamic Studies of the Possibility of Free Carbon Formation during the Synthesis of Calcium Cyanamide by the Carbide-Free Method

O.Kh. Panzhiev, A.Kh. Panzhiev

Abstract


The article presents the results of the study of the effect of the volumetric velocity of the initial gas mixture on the calcium cyanamide yield. In the studied range of volumetric velocity and CO2: NH3 ratio, the optimal temperature of calcium cyanamide synthesis was shown to be 8000C. As a result of the research, the initial temperature of thermal decomposition of ammonia was calculated for the first time on the basis of new physicochemical constants by thermodynamic calculations and the probability of additional chemical reactions between ammonia and carbon dioxide was determined. The effect of the main technological parameters on the synthesis of calcium cyanamide was determined. The composition of the exhaust gases from calcium cyanamide synthesis reactors has been studied as a function of temperature.


Keywords


Thermodynamic, Free Carbon Formation, Synthesis, Calcium Cyanamide, Carbide-Free Method.

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References


Beglov B.M. State and prospects of production and use of mineral fertilizers in Uzbekistan // Kimyo va kimyotexnologiyasi -2003. -№1.

Panzhiev A.Kh., Panzhiev O.Kh., Toirov Z.K. Influence of temperature on calcium cyanamide systhesis from ammonia, carbon dioxide and lime obtained from Jamakai limestone. // UNIVERSUM ”CHEMISTRY AND BIOLOGY February 2020

Panzhiev O.Kh., Begimulova D., Usmonova M The effect of the ratio of components in the initial reaction gas mixture and the duration of the synthesis on the product yield. // “International Engineering Journal for Besearch & Development” Impact Factor: 6,549. - India 2020 Vol: 5, Issule 4.


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