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[Chemical Knowledge]：Production and manufacturing method and process of isohexanol

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The manufacturing method

of isohexanol Isohexanol is an important organic chemical raw material, which is widely used in fine chemical industry, medicine, pesticide and other fields. This article will introduce the manufacturing method of isohexanol, including raw material selection, reaction principle, process flow, equipment selection and so on.

1. raw material selection

isohexanol manufacturing raw materials are mainly ethylene, water and carbon monoxide. Among them, ethylene is the main carbon source, water provides a hydrogen source, and carbon monoxide serves as a reaction promoter. When selecting raw materials, factors such as purity, source and cost should be considered. The principle of

2. reaction
the manufacture of
isohexanol is mainly through the hydration reaction of ethylene to produce ethanol, and then the carbonylation reaction of ethanol and carbon monoxide under the action of a catalyst to produce isohexanol. The specific reaction equation is as follows:

1. Ethylene hydration reaction: CH2 = CH2 H2O → CH3CH2OH
2. Ethanol carbonylation reaction: CH3CH2OH CO→ CH3COCH3

3. process
The manufacturing process of
isohexanol mainly includes the following steps:

1. Ethylene hydration reaction: Ethylene and water are mixed in a certain proportion and fed into a reactor filled with catalyst, the hydration reaction is carried out at an appropriate temperature and pressure to produce ethanol.
2. Ethanol carbonylation reaction: Ethanol and carbon monoxide are mixed in a certain proportion, and then passed into a reactor equipped with a catalyst. The carbonylation reaction is carried out at an appropriate temperature and pressure to generate isohexanol.
3. Product separation and purification: After the reaction, the isohexanol is separated from the reaction mixture by distillation, rectification and other methods, and purified to obtain a qualified isohexanol product.

4. equipment selection

In the manufacturing process of isohexanol, the equipment that needs to be used includes reactors, distillation columns, distillation columns, pumps, valves, etc. When selecting equipment, factors such as performance, reliability, and maintenance costs should be considered, and reasonable selection should be made according to the requirements of the production process.

5. production control and safety measures

In the manufacturing process of isohexanol, it is necessary to strictly control the reaction conditions to ensure product quality and production safety. Specific control measures include:

1. Control the reaction temperature and pressure to avoid overtemperature and overpressure.
2. Regularly maintain and maintain the reactor and equipment to ensure their normal operation.
3. Strengthen on-site safety management and comply with relevant safety regulations and operating procedures.

6. Environmental Protection and Waste Treatment

In the manufacturing process of isohexanol, some wastes and by-products will be produced, such as waste water, waste gas, etc. In order to ensure environmental protection and sustainable development, it is necessary to take effective measures for waste disposal and environmental protection. Specific measures include:

1. Pretreatment and biochemical treatment of wastewater to ensure that it meets the discharge standards.
2. Absorption, adsorption or incineration of waste gas to reduce air pollution.
3. Strengthen the monitoring and management of waste water, waste gas and other wastes to ensure their effective treatment.

In short, the manufacturing method of isohexanol involves many aspects, including raw material selection, reaction principle, process flow, equipment selection, production control and safety measures, environmental protection and waste treatment. In the actual production process, it is necessary to comprehensively consider various factors, formulate scientific and reasonable manufacturing plans, ensure product quality and production safety, and actively take environmental protection measures to promote the sustainable development of the chemical industry.

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