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[Chemical Knowledge]：Ethylene glycol-start-up material production and manufacturing methods and processes.

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Ethylene glycol -
of the manufacturing method
of driving materials Ethylene glycol is an important organic chemical raw material, widely used in the production of polyester, antifreeze, unsaturated polyester resin and other fields. The ethylene glycol-starting material is an important raw material required in the production process of ethylene glycol, which is mainly used as the carrier and regulator of the catalyst. This article will introduce the manufacturing method of glycol-start-up material.

1. Raw Material Preparation

Manufacturing Ethylene Glycol-Starting materials need to prepare the following raw materials: ethylene glycol, phosphoric acid, potassium hydroxide.

2. Manufacturing Step

1. Preparation of Phosphoric Acid Solution

Phosphoric acid was added to a predetermined amount of water and stirred uniformly to prepare a phosphoric acid solution.

2. preparation of potassium hydroxide solution

potassium hydroxide is added to a certain amount of water, stirring, made of potassium hydroxide solution.

3. mixing reaction

phosphoric acid solution and potassium hydroxide solution are mixed together for neutralization reaction to generate potassium phosphate precipitate. At the same time, ethylene glycol will also react with potassium phosphate to form ethylene glycol-start-up material.

4. Filtration Washing

The reaction mixture is filtered to remove the potassium phosphate precipitate and the filter cake is washed with clean water until the filtrate is neutral.

5. Drying

The washed glycol-start-up material is dried to obtain the final glycol-start-up material product.

3. precautions

1. In the preparation of phosphoric acid solution and potassium hydroxide solution, the concentration and pH value of the solution should be strictly controlled to ensure the smooth progress of the reaction.

2. In the mixed reaction process, attention should be paid to control the reaction temperature and reaction time to avoid over-reaction or under-reaction.

3. In the process of filtering and washing, the filter cake should be cleaned to avoid impurities in the product.

4. During the drying process, the drying temperature and drying time should be controlled to avoid overheating or incomplete drying of the product.

4. summary
The manufacturing method of
glycol-starting material is not complicated, but it is necessary to pay attention to the preparation of raw materials and the control in the manufacturing process to ensure product quality and output. At the same time, attention should be paid to safety in the production process to avoid accidents. In a word, mastering the manufacturing method of ethylene glycol-driving material can provide important raw material support for chemical production.

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