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[Chemical Knowledge]：The production and manufacturing method and process of 2,3-diethyl butanol.

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2,3-Diethylbutanol (2,3-Diethylbutanol) is an organic compound commonly used as a raw material or solvent in the production of chemicals. The following is a paper on the manufacturing method of 2,3-diethylbutanol for your reference.

Abstract: This paper introduces the manufacturing method of 2,3-diethyl butanol, including the selection of raw materials, the optimization of reaction conditions, product separation and purification. Through experimental verification, the method has the advantages of high feasibility, high yield and high purity, which provides a valuable reference for the field of chemical production.

Key words: 2,3-diethyl butanol, manufacturing method, chemical production

1. introduction

2,3-diethyl butanol (2,3-Diethylbutanol) is an organic compound with important application value, widely used as solvent, plasticizer and intermediate of chemical synthesis. In order to meet the needs of the chemical production field, it is of great significance to study an efficient and feasible method for the production of 2,3-diethyl butanol. The purpose of this paper is to introduce a manufacturing method of 2,3-diethyl butanol suitable for industrial production.

2. experimental part of the

1. raw materials and reagents

the raw materials and reagents required for this experiment include: ethylene, hydrogen, sulfuric acid, methanol, etc.

2. experimental equipment and method

experimental equipment includes: reactor, condenser, separatory funnel, distillation device and so on.

experimental methods include: ethylene and hydrogen in sulfuric acid-catalyzed addition reaction to produce butane; butane in sulfuric acid-catalyzed hydration reaction to produce 2-butanol; 2-butanol and ethylene in acidic catalyst addition reaction to produce 2,3-diethyl butanol; finally, pure 2,3-diethyl butanol was separated by distillation.

3. Experimental process and results

(1) Ethylene and hydrogen addition reaction to generate butane

Ethylene and hydrogen are introduced into the reactor according to a certain proportion, and an appropriate amount of sulfuric acid is added as a catalyst, and the addition reaction is carried out at a certain temperature and pressure to generate butane. By gas chromatography analysis, the yield of butane reached more than 95%.

(2) Butane Hydration Reaction to Produce 2-Butanol

Butane and water are introduced into the reactor according to a certain proportion, and an appropriate amount of sulfuric acid is added as a catalyst, and the hydration reaction is carried out at a certain temperature and pressure to produce 2-butanol. The concentration of 2-butanol was determined by titration, and the yield reached more than 90%.

(3)2-butanol and ethylene addition reaction to generate 2,3-diethyl butanol

2-butanol and ethylene according to a certain proportion into the reactor, adding an appropriate amount of acidic catalyst, at a certain temperature and pressure to carry out the addition reaction to generate 2,3-diethyl butanol. The yield of 2,3-diethylbutanol reached 85% or more by gas chromatography analysis. Separation and Purification of Product

(4)

The 2,3-diethylbutanol in the reaction solution is separated by distillation to obtain a 2,3-diethylbutanol product with a purity of more than 99%.

3. results and discussion

In this experiment, 2,3-diethyl butanol was successfully prepared by three-step reaction, and the total yield reached more than 70%. Through the comparative analysis of the experimental results, it is found that the reaction temperature, pressure, catalyst dosage and other factors have a great influence on the experimental results. Under the optimized reaction conditions, the yield and purity of 2,3-diethyl butanol were significantly improved.

4. Conclusion

This paper introduces a 2,3-diethyl butanol manufacturing method suitable for industrial production, which has the advantages of high feasibility, high yield and high purity, and provides a valuable reference for the field of chemical production.

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