Potassium fluoride production process
Potassium fluoride can be used as a fluxing flux, an insecticide, a fluorinating agent for organic compounds, a catalyst, an absorbent (absorbing HF and moisture), a fluorine-containing salt, and the like, and can also be used as a raw material for preparing potassium hydrogen fluoride. Therefore, the demand for potassium fluoride is very large. In the production process, there are problems such as high production cost and high environmental protection cost. The following potassium fluoride wholesale manufacturers provide the production process of potassium fluoride.
1) Mixing the ingredients with hydrofluoric acid, potassium hydroxide and water as raw materials, adding water to the reaction tank, adding 90% potassium hydroxide to the reaction tank, diluting the potassium hydroxide into a 70% aqueous solution, and then adding 40% Hydrofluoric acid, slowly added to the reaction tank with a feeding tube to carry out the reaction, the reaction is about to terminate, the pH value is measured, the pH is controlled within 7.5-8, the addition of hydrofluoric acid is stopped, and 55% of the fluorination is generated. Potassium, after standing for 12h, pumped into the storage tank for use;
2) Drying and turning on the centrifugal induced draft fan, turning on the heater, controlling the inlet temperature of 450-500 degrees Celsius, the clean room temperature of 850-900 degrees Celsius, the exiting temperature of 220-230 degrees Celsius, and then turning on the material transfer pump to fluorinate the storage tank. The potassium aqueous solution is pumped into the spray dryer to control the feeding speed to 190r/min. At this time, the powdery industrial anhydrous potassium fluoride is formed.
3) Packaging. The production process of potassium fluoride of the invention has the following technical effects, simple technology, low production cost, good social, economic and environmental benefits, and is easy to popularize and apply.
The above is the introduction of the production process of potassium fluoride, which is used for glass engraving, food preservation, and electroplating.
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