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[Chemical Knowledge]：Manufacturing method and process of acetic acid

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The manufacturing method
of acetic acid
acetic acid, also known as acetic acid, is an important organic chemical raw material and has a wide range of applications in the field of chemical production. There are various manufacturing methods of acetic acid, including ethanol oxidation method, low carbon alkane oxidation method, acetaldehyde oxidation method and methanol carboxylation method. This article will introduce and analyze these manufacturing methods in detail.

1. Ethanol oxidation

Ethanol oxidation is one of the main methods for the production of acetic acid, the process is the oxidation of ethanol and air in the presence of a catalyst to produce acetic acid and water. This method has the advantages of easy access to raw materials, simple operation and low production cost, so it is widely used in industrial production.

2. Low-carbon alkane oxidation

Low-carbon alkane oxidation method is a low-carbon alkane (such as ethane, propane, etc.) as raw materials, through the oxidation reaction of acetic acid. This method has the advantages of abundant raw materials and low production cost, but the reaction process requires high temperature and high pressure conditions, which requires high equipment.

3. acetaldehyde oxidation

acetaldehyde oxidation method is a kind of acetaldehyde and oxygen in the catalytic oxidation reaction of acetic acid. This method has the advantages of mild reaction conditions and high selectivity, but the price of acetaldehyde is higher, resulting in increased production costs.

4. Methanol carboxylation method

Methanol carboxylation method is a method of generating acetic acid through the carboxylation reaction of methanol and carbon dioxide under the action of a catalyst. This method has the advantages of easy availability of raw materials and mild reaction conditions, but it is still in the research stage and has not yet realized industrial production.

Through the introduction and analysis of the above several acetic acid manufacturing methods, we can see that each method has its advantages and disadvantages and scope of application. In the actual production process, the appropriate manufacturing method should be selected according to the specific production conditions and needs.

In order to ensure the production efficiency and product quality of acetic acid, it is necessary to strictly control various parameters in the production process, such as reaction temperature, pressure, and material ratio. At the same time, strengthening equipment maintenance and operation management and improving the level of production automation are also important ways to improve the efficiency and quality of acetic acid production.

In short, there are a variety of manufacturing methods for acetic acid, and each method has its own characteristics and scope of application. In the actual production process, the appropriate manufacturing method should be selected according to the specific situation, and the parameters should be strictly controlled to ensure the production efficiency and product quality of acetic acid.

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