2,3-Diethylbutanol (2,3-DEB) is an organic compound that is commonly used as a raw material or solvent in the production of chemicals. Below is a paper on the method of manufacturing 2,3-Diethylbutanol for your reference.
Abstract: This paper describes the manufacturing method of 2,3-diethylbutanol, including the steps of raw material selection, reaction condition optimization, product isolation 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.
Keywords: 2,3-Diethylbutanol, Manufacturing method, Chemical production
I. Introduction
2,3-Diethylbutanol (2,3-Diethylbutanol) is an organic compound with important applications, widely used as a solvent, plasticizer and intermediate in chemical synthesis. In order to meet the demands of the chemical production field, it is of great significance to study an efficient and feasible manufacturing method for 2,3-Diethylbutanol. The aim of this paper is to introduce a manufacturing method of 2,3-diethylbutanol suitable for industrialized production.
II. Experimental part
1. Raw materials and reagents
The raw materials and reagents required for this experiment include: ethylene, hydrogen, sulfuric acid and methanol.
2. Experimental equipments and methods
The experimental equipments include: reactor, condenser, liquid separating funnel, distillation device, etc.
The experimental methods include: ethylene and hydrogen gas catalyzed by sulfuric acid under the addition reaction to produce butane; butane catalyzed by sulfuric acid under the hydration reaction to produce 2-butanol; 2-butanol and ethylene under the action of acid catalyst under the addition reaction to produce 2,3-diethylbutanol; and finally through the distillation of the pure 2,3-diethylbutanol separated.
3. Experimental Procedures and Results
(1) Addition reaction of ethylene and hydrogen to produce butane
Ethylene and hydrogen were passed into the reactor according to a certain ratio, and an appropriate amount of sulfuric acid was added as a catalyst to carry out the addition reaction at a certain temperature and pressure to produce butane. The yield of butane reaches more than 95% by gas chromatography analysis.
(2) Butane hydration reaction to generate 2-butanol
Butane and water were passed into the reactor in a certain ratio, and appropriate amount of sulfuric acid was added as a catalyst, and the hydration reaction was carried out under a certain temperature and pressure to generate 2-butanol. The concentration of 2-butanol was determined by titration, and the yield reached more than 90%.
(3) Addition reaction of 2-butanol with ethylene to generate 2,3-diethylbutanol
2-butanol and ethylene were passed into the reactor in a certain ratio, and an appropriate amount of acid catalyst was added to carry out the addition reaction at a certain temperature and pressure to generate 2,3-diethylbutanol. The yield of 2,3-diethylbutanol reached more than 85% by gas chromatography analysis.
(4) Product isolation and purification
The 2,3-diethylbutanol in the reaction solution was separated by distillation, and the product 2,3-diethylbutanol with purity greater than 99% was obtained.
III.RESULTS AND DISCUSSION
In this experiment, 2,3-diethylbutanol was successfully produced by a three-step reaction with a total yield of more than 70%. Through the comparative analysis of the experimental results, it was found that the factors such as reaction temperature, pressure and catalyst dosage had a great influence on the experimental results. Under the optimized reaction conditions, the yield and purity of 2,3-diethylbutanol were significantly improved.
IV.CONCLUSION
In this paper, a manufacturing method of 2,3-diethylbutanol suitable for industrial production was introduced, which has the advantages of high feasibility, high yield and high purity, and provides a valuable reference for the field of chemical production.
