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[Chemical Knowledge]：Production and manufacturing method and process flow of isobutyric acid

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The manufacturing method
of isobutyric acid
isobutyric acid is an important organic chemical raw material, which is widely used in medicine, pesticide, plastic, spice and other fields. This article will introduce the manufacturing method of isobutyric acid, including raw materials, process flow, operation steps, equipment selection and so on.

1. raw material

isobutyric acid is mainly used in the manufacture of the following raw materials:

1. carbon four hydrocarbon mixture: carbon four hydrocarbon mixture is the main raw material of isobutyric acid, which contains isobutylene, n-butene and other components.

2. Oxygen: Oxygen is used as an oxidant to oxidize the olefins in the C4 hydrocarbon mixture to carboxylic acids.

2. Process
The manufacturing process of
isobutyric acid mainly includes the following steps:

1. Raw material mixing: the carbon four hydrocarbon mixture and oxygen are mixed according to a certain proportion and enter the oxidation reactor.

2. Oxidation reaction: In the oxidation reactor, the mixture is subjected to oxidation reaction under the action of a catalyst to generate isobutyric acid.

3. Product separation: The reaction product was cooled and separated to obtain isobutyric acid and unreacted raw materials.

4. Refining and purification: Through refining and purification, isobutyric acid products with high purity are obtained.

3. operation steps

1. Check the equipment: check whether the oxidation reactor, cooler, separator and other equipment are operating normally to ensure the safety of the production process.

2. Feeding operation: Put the C4 hydrocarbon mixture and oxygen into the oxidation reactor according to a certain proportion, and control the reaction temperature and pressure.

3. reaction control: according to the reaction of the catalyst to add and adjust, to maintain the stability of the reaction.

4. Product cooling and separation: The reaction product is cooled to a certain temperature and subjected to gas-liquid separation to obtain isobutyric acid and unreacted raw materials.

5. Refining and purifying operation: Refining and purifying isobutyric acid to obtain a product with high purity.

4. equipment selection

In the manufacturing process of isobutyric acid, the equipment that needs to be used includes oxidation reactor, cooler, separator, refining and purification equipment, etc. When selecting equipment, it is necessary to comprehensively consider factors such as production scale, product quality requirements, safety and environmental protection, and select equipment with stable performance, simple operation, safety and reliability.

5. safety and environmental protection requirements

In the manufacturing process of isobutyric acid, it is necessary to pay attention to safety and environmental protection requirements and take effective measures to reduce safety risks and environmental pollution in the production process. For example, strengthen equipment maintenance and overhaul to prevent equipment failures and leakage accidents; strengthen the treatment and recycling of pollutants such as waste gas and waste water to reduce environmental pollution.

6. manufacturing advantages and disadvantages

isobutyric acid manufacturing method has the advantages of easy access to raw materials, mature process, simple operation, etc., can achieve large-scale industrial production. However, this method also has some shortcomings, such as low catalyst activity and insufficient product purity, which need to be further improved and perfected.

7. conclusion

isobutyric acid manufacturing method is an important chemical technology, which is of great significance to promote the development of medicine, pesticides, plastics, spices and other fields. In the actual production process, it is necessary to strengthen the optimization and improvement of the production process, improve product quality and production efficiency, and at the same time strengthen safety and environmental protection management to ensure the safety and environmental protection of the production process.

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