КОНВЕРСИЯ УСУЛИДА КАЛИЙ НИТРАТ ОЛИШ АСОСИЙ БОСҚИЧЛАРИНИНГ ТАДҚИҚОТИ

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КОНВЕРСИЯ УСУЛИДА КАЛИЙ НИТРАТ ОЛИШ АСОСИЙ БОСҚИЧЛАРИНИНГ ТАДҚИҚОТИ

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Abstract. Background. The task of developing a method for producing potassium nitrate is to conduct a physicochemical study of the optimal conditions for the conversion, filtration and crystallization processes with a high yield of potassium into the product. Purpose.The aim of the study is to establish the optimal technological parameters for the production of potassium nitrate by conversion methods from potassium chloride and ammonium nitrate. Methodology. At the end of the conversion process, the system was cooled with stirring at a stirrer rotation speed and temperature reduction of 50-100 rpm and 2-4 °C/min, respectively. The solid product and liquid phase were analyzed by well-known methods of chemical and physicochemical analysis. Originality. The effect of technological parameters on the yield of potassium oxide and the quality of potassium nitrate obtained by the conversion method from potassium chloride and ammonium nitrate has been studied for the first time. Physicochemical studies of the processes of conversion of potassium chloride with ammonium nitrate, filtration of the suspension and crystallization of potassium nitrate have been carried out. Findings. It is shown that in the temperature range of 5-20 ° C the duration of the conversion of potassium chloride with ammonium nitrate remains practically unchanged. The optimal technological parameters for the formation of large prismatic crystals of potassium nitrate have been established, providing a high product yield with a minimum chlorine content Highlights: - the mode of heat treatment of potassium nitrate is determined; - optimal heat treatment mode: 132.8 and 339 ° C for 30 minutes; - an increase in temperature to 132.8 ° C increases the content of nitrite ions to 0.01%.

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# структура# structure# mixing# тузилиш# суспензии# аралаштириш# перемешивание# бесхлорные удобрения# обменное разложение# азотнокислый калий# хлорсиз ўғит# алмашинувчи парчаланиш# калий нитрат# суспензмя# chlorine-free fertilizers# exchange decomposition# potassium nitrate# suspensions

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