Manufacturing method of ethylene glycol-driving material
Ethylene glycol is an important organic chemical raw material, widely used in the production of polyester, antifreeze, unsaturated polyester resin and other fields. Glycol-driving material is an important raw material required in the production process of ethylene glycol, which is mainly used as the carrier and regulator of catalyst. This article will introduce the manufacturing method of ethylene glycol-driving material.
I. Preparation of raw materials
The following raw materials are required to be prepared for the manufacture of ethylene glycol-driving material: ethylene glycol, phosphoric acid, potassium hydroxide.
II. Manufacturing steps
1. Preparation of phosphoric acid solution
Phosphoric acid is added to a certain amount of water and stirred well to make a phosphoric acid solution.
2. Preparation of potassium hydroxide solution
Add potassium hydroxide to a certain amount of water, stir well to make potassium hydroxide solution.
3. Mixing Reaction
The phosphoric acid solution and potassium hydroxide solution are mixed together to perform a neutralization reaction to produce a potassium phosphate precipitate. At the same time, ethylene glycol also reacts with potassium phosphate to form ethylene glycol-drive material.
4. Filtration and washing
The mixture produced by the reaction is filtered to remove the potassium phosphate precipitate, and then the filter cake is washed with water until the filtrate is neutral.
5. Drying
The washed glycol-opener was dried to obtain the final glycol-opener product.
III. Precautions
1. When preparing phosphoric acid solution and potassium hydroxide solution, the concentration and pH of the solution should be strictly controlled to ensure the smooth progress of the reaction.
2. During the mixing reaction, attention should be paid to controlling the reaction temperature and reaction time to avoid over-reaction or under-reaction.
3. In the process of filtration and washing, it should be ensured that the filter cake is washed clean to avoid impurities in the product.
4. In the drying process, the drying temperature and drying time should be controlled to avoid the occurrence of overheating or incomplete drying of the product.
4. Summarize
The manufacturing method of ethylene glycol-driving material is not complicated, but attention should be paid to the preparation of raw materials and the control of the manufacturing process to ensure the quality and yield of the product. At the same time, attention should be paid to safety in the manufacturing process to avoid accidents. In a word, mastering the manufacturing method of Ethylene Glycol-Driving Stock can provide important raw material support for chemical production.
