МАХАЛЛИЙ ХОМ АШЁЛАР АСОСИДА ОХАКЛИ УСУЛДА КАЛИЙ ГИДРОКСИД ОЛИШ ЖАРАЁНИНИНГ ТАДҚИҚОТИ

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МАХАЛЛИЙ ХОМ АШЁЛАР АСОСИДА ОХАКЛИ УСУЛДА КАЛИЙ ГИДРОКСИД ОЛИШ ЖАРАЁНИНИНГ ТАДҚИҚОТИ

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Background. The conducted analytical review in this area showed that most authors characterize the lime method of obtaining potassium hydroxide as the most secure. The main disadvantage of this method is the low concentration of potassium hydroxide and a significant content of potassium carbonate in the product and the formation of caustic sludge. Purpose. The aim of this work is to develop an improved technology for the caustification process of the lime process in the production of potassium hydroxide. Methodology. The caustification process was carried out in an isothermal reactor for 90 minutes. The maximum temperature reaches 95°С. In the selected sample, the content of OH-, CO2 was determined, the content of calcium ion was determined by the trilonometric method, the ion by the chloroargentometric method using the BAT-15 automatic titration block. The potassium content was determined by flame photometry. Originality. For the first time with the establishment of optimal technological parameters, the process of obtaining potassium hydroxide by the lime method was studied on the basis of local raw materials - milk of lime and potash, obtained from potassium chloride “Dekhkanabad Potash Plant” OLC. Findings. Studies have shown that the resulting calcium carbonate is quickly precipitated from the suspension and is easily filtered, which makes it possible to recommend the use of existing standard thickening and filtering systems with a minimum working surface. Highlights: * the effect of lime milk concentration on the filtration rate of the precipitate and filtrate; * the optimal technological parameters for the production of potassium hydroxide from local raw materials.

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# температура# ҳарорат# шлам# temperature# фильтрация# filtration# филтрлаш# sludge# карбонат кальция# кальций карбонат# calcium carbonate# поташ# известковое молоко# гидроксид калия# каустификация# отстаивание.# оҳакли сут# калий гидроксид# тиндириш.# potash# milk of lime# potassium hydroxide# caustification# settling.

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https://eroi.uz/11.0030/A1219-0010

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