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[Chemical Knowledge]：The production method and process of ether.

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Manufacturing method
of ethyl ether
ethyl ether is a common organic compound with excellent solubility and anesthetic effect, so it is widely used as a raw material for chemical production and pharmaceutical intermediates. There are two main methods of manufacturing ether: sulfuric acid method and hydrogen peroxide method. This article will detail these two manufacturing methods.

1. sulfuric acid method

sulfuric acid method is a traditional ether manufacturing method, the main raw materials are ethanol and sulfuric acid. The following is the specific steps of the sulfuric acid method to produce ether:

1. add ethanol into sulfuric acid, mix evenly, and heat to 60-70 ℃ to dehydrate ethanol to produce ether.
2. Ether is distilled off and, after cooling with cold water, sulfuric acid and ethanol are added and distillation with heating is continued until all ethanol is converted to ether.
3. The ether obtained by distillation is washed with water, neutralized with sodium hydroxide solution to neutrality, and finally distilled to obtain pure ether. The

sulfuric acid method has the advantages of simple process and low cost, but the disadvantage is that it will produce a large amount of waste acid and wastewater, which will cause pollution to the environment.

2. hydrogen peroxide method

hydrogen peroxide method is a relatively new ether manufacturing method, the main raw materials are ethanol and hydrogen peroxide. The following are the specific steps of the hydrogen peroxide method to manufacture ether:

1. Mixing ethanol and hydrogen peroxide in a certain proportion, adding catalyst, stirring reaction.
2. After completion of the reaction, unreacted ethanol and water were distilled off to obtain crude diethyl ether.
3. The crude ether is washed with alkali to remove acidic impurities, then washed with water until neutral, and finally distilled to obtain pure ether. The advantages of the

hydrogen peroxide method are that less waste water is produced, it is environmentally friendly, and the product quality is higher. But the disadvantage is that the price of hydrogen peroxide is higher and the cost is relatively high.

No matter which method is used to manufacture ether, it is necessary to strictly abide by the safety operation procedures to ensure the safety and stability of the production process. At the same time, it is also necessary to pay attention to environmental issues and take effective measures to reduce waste emissions and protect the environment.

In short, there are two main methods for the manufacture of ether: sulfuric acid and hydrogen peroxide. The sulfuric acid method has simple process and low cost, but it will produce a lot of waste acid and wastewater; the hydrogen peroxide method is environmentally friendly and has high product quality, but the cost is relatively high. In actual production, a suitable manufacturing method can be selected according to specific conditions. At the same time, it is necessary to strengthen safety management and environmental protection measures to ensure the smooth progress and development of the production process.

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