Raw materials of traditional acetylaldehyde method

The main disadvantages of preparing 1, 4- butanediol by acetylaldehyde method are as follows:

1, the reaction conditions are harsh: the preparation of 1, 4- butanediol by acetylaldehyde method needs to be carried out at high temperature and high pressure, which will lead to high production cost and equipment cost, and the operation is also difficult.

2. It is difficult to purify the reaction products: because the boiling points and solubility of different alcohol isomers produced by the reaction are close, it is difficult to effectively separate and purify them.

3. Catalysts are easy to be polluted: catalysts are needed to prepare 1, 4- butanediol, but these catalysts are easily affected by pollutants such as water, oxygen and carbon in the environment, thus affecting product quality and yield.

4. Possible side reaction products: In the process of preparing 1, 4- butanediol, side reactions may occur, producing some unwanted products, such as polymers of alkynaldehyde or other impurities that are difficult to separate, which will reduce the quality and yield of products.

5. The production process has a great impact on the environment: because the preparation process is in a high temperature and high pressure environment, it may produce a lot of carbon emissions and wastewater, which will have an adverse impact on the environment.