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[Chemical Knowledge]：Production and manufacturing method and process flow of dipotassium hydrogen phosphate

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Dipotassium hydrogen phosphate (Potassium Diphosphate, chemical formula KH2PO4) is a common chemical product, which is widely used in food, medicine, agriculture and other fields. The following is a detailed description of the manufacturing method of dipotassium hydrogen phosphate. The method uses potassium dihydrogen phosphate and potassium hydroxide as raw materials to generate dipotassium hydrogen phosphate through a neutralization reaction.

1. Raw material preparation

1. Potassium dihydrogen phosphate: Select high purity potassium dihydrogen phosphate as raw material to ensure the quality of the final product.
2. Potassium hydroxide: Select the potassium hydroxide that meets the industrial grade standard to ensure the effective reaction.

2. equipment preparation

1. reaction kettle: for neutralization reaction, should have heating, stirring and temperature control function.
2. Centrifuge: used to separate reaction products and unreacted raw materials.
3. Drying equipment: used to dry the product to achieve the specified moisture content.
4. Packaging equipment: used to package products into specified specifications.

3. manufacturing steps

1. add potassium dihydrogen phosphate into the reaction kettle and open the stirring function.
2. Slowly add potassium hydroxide solution, while controlling the temperature in the reaction kettle within a suitable range, the neutralization reaction.
3. When the reaction is completed, heating and stirring are stopped, and the reaction product is allowed to stand for a while to allow the solid to settle.
4. Separate the solids from the liquids using a centrifuge and collect the solid product.
5. Put the solid product into the drying equipment and dry it to reduce the water content of the product.
6. Finally, use packaging equipment to package the dried product to the specified specifications.
Precautions for
4.

1. Strictly control the quality and proportion of raw materials to ensure that the reaction generates dipotassium hydrogen phosphate.
2. During the operation, pay close attention to the temperature change in the reactor to prevent the reaction from being affected by too high or too low temperature.
3. Centrifugal separation should pay attention to control the speed and time of the centrifuge to avoid product damage.
4. During the drying process, the temperature and humidity of the drying equipment should be controlled to prevent the product from deteriorating.
5. The packaging process should be kept clean to avoid product contamination.

5. quality detection

1 on the generation of two potassium hydrogen phosphate quality detection, including purity, water content, pH value and other indicators.
2. Ensure that the products meet the relevant standards and regulations. If there are unqualified products, they need to be reworked or scrapped.

6. waste disposal

1. for the production process of waste, should be classified, recyclable waste should be recycled.
2. Waste that cannot be recycled shall be disposed of in a safe and environmentally friendly manner to prevent harm to the environment and the human body.

The above is a detailed introduction about the manufacturing method of dipotassium hydrogen phosphate, and the specific production process needs to be adjusted and optimized according to the actual situation. At the same time, in order to ensure the safety and efficiency of production, it is also necessary to strictly abide by relevant laws and regulations and operating procedures to ensure that the production process meets environmental protection and safety requirements.

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