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[Chemical Knowledge]：Manufacturing method and process flow of methyl tert-butyl ether

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Methyl tert-butyl ether (MTBE) is an important chemical product, as an excellent gasoline additive and solvent, widely used in chemical, pharmaceutical, pesticide and other fields. This paper will introduce the manufacturing method of methyl tert-butyl ether in detail, including the reaction principle, process flow, equipment selection, operation points and so on.

1. Reaction Principle

The production of methyl tert-butyl ether is mainly achieved by the reaction of methanol and isobutene, which is an etherification reaction. The reaction equation is as follows:

CH3OH CH3-C(CH3)2 → CH3O-C(CH3)3 H2O

In this reaction, methanol and isobutylene generate methyl tert-butyl ether and water under the action of acidic catalyst.

2. Process

The production process of methyl tert-butyl ether mainly includes the steps of raw material pretreatment, etherification reaction, product separation and purification. The specific process is as follows:

1. Raw material pretreatment: methanol and isobutylene are mixed according to a certain proportion and dehydrated to ensure the smooth progress of the reaction.
2. Etherification reaction: under the action of acidic catalyst, the pretreated raw material is heated to a certain temperature for etherification reaction.
3. Product separation and purification: After the reaction, methyl tert-butyl ether is separated from water and unreacted raw materials by distillation, extraction and other methods to obtain methyl tert-butyl ether products with high purity.

3. equipment selection

In the production process of methyl tert-butyl ether, it is necessary to select appropriate equipment to ensure the smooth progress of production. The main equipment includes:

1. reactor: the reactor with stirring device is selected to ensure the full mixing of raw materials and the uniform reaction.
2. Heater: select efficient and stable heater to ensure the stable control of reaction temperature.
3. separation equipment: according to the specific process requirements, select the appropriate distillation tower, extractor and other equipment, in order to achieve the effective separation and refining of products.

4. operating points

In the production process of methyl tert-butyl ether, in order to ensure production efficiency and product quality, the following operating points need to be paid attention to:

1. Strictly control the ratio of raw materials and reaction temperature to avoid by-products Generation and equipment damage.
2. Maintain and maintain the equipment regularly to ensure the normal operation and service life of the equipment.
3. Strengthen the monitoring of the production process, find and solve the problems in production in time, and ensure the stability and continuity of production.

5. safety and environmental protection requirements

In the production process of methyl tert-butyl ether, it is necessary to strictly abide by the safety and environmental protection requirements to ensure the safety and environmental protection of the production process. Specific measures include:

1. Strengthen staff safety training, improve staff safety awareness, to ensure safe operation in the production process.
2. Take effective waste gas and waste water treatment measures to reduce the impact of the production process on the environment.
3. Conduct regular environmental assessment of the production process to identify and solve potential environmental problems in a timely manner.

summary:

methyl tert-butyl ether as an important chemical, its manufacturing method involves the reaction principle, process flow, equipment selection, operation points and other aspects. In the actual production process, it is necessary to strictly abide by the safety and environmental protection requirements to ensure the safety and environmental protection of the production process. At the same time, strengthen the production process monitoring and equipment maintenance, improve production efficiency and product quality, and create greater economic and social benefits for enterprises.

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