1、Theoretical study on the synthesis of vinyl acetate from acetylene and
In this study, we used density functional theory (DFT) to calculate the feasibility of preparing vinyl acetate (VAc) on four CN non-metallic materials (C 2 N, C 3 N, C 4 N and C 5 N) under the reaction conditions of 1 atm, 393.15–493.15 K at B3LYP/6-31G (d, p) level.
2、KMC Study on Byproduct Formation in the Process of
Kinetic Monte Carlo (KMC) was used to further study the main reaction and various side reactions in the process of producing vinyl acetate from acetylene. The effects of temperature, pressure, and molar ratio of acetylene/acetic acid on the reaction process were investigated.
3、(PDF) Vinyl Acetate Monomer Process
1. Integration of vinyl acetate and ethylene glycol manufacturing through the intermediate 1,2 - diacetoxyethane. 2. Hydrogenative carbonylation of methyl acetate to 1,1 - diacetoxyethane...
Simulation and improvement of the separation process of s
In this study, in the classical design of the process, acetylene is separated first, and then acetaldehyde is removed with the formation of an azeotrope between ethylene acetate and water.
VINYL ACETATE PRODUCTION FROM ACETIC ACID AND ACETYLENE
Vinyl Acetate can be used in the manufacture of other products, including acetic acid; acetaldehyde; ethyl acetate; ethylene vinyl acetate; polyacrylonitrile; polyvinyl acetate; nitrile rubber.
Vinyl acetate formation in the reaction of acetylene with acetic acid
Vinyl acetate was produced from acetylene and acetic acid using the PCS-supported zinc acetate (PCS-Zn) under mild conditions. In a single-pass operation performed at 220°C, the conversions of acetic acid and acetylene reached 22.6 and 5.3% respectively while the activity of vinyl acetate formation was above 1000 g mol −1 h −1.
Simulation and improvement of the separation process of
In this study, in the classical design of the process, acetylene is separated first, and then acetaldehyde is removed with the formation of an azeotrope between ethylene acetate and water.
Vinyl acetate production methods and production process, what are the
Acetylene method is the classic method for the production of vinyl acetate, which is mainly based on acetylene and acetic acid as raw materials, and the addition reaction is carried out in the presence of zinc acetate catalyst to obtain vinyl acetate.
Acetoxylation of acetylene to vinyl acetate monomer over bimetallic Zn
At present, an activated carbon-supported zinc acetate catalyst is used in the industrial preparation of vinyl acetate; however, its stability and initial activity remain poor, so improving the catalytic performance is still a hot topic.
(PDF) Simulation and improvement of the separation process of
In this study, in the classical design of the process, acetylene is separated first, and then acetaldehyde is removed with the formation of an azeotrope between ethylene acetate and water.
In modern industry, chemical reactions play a pivotal role. They not only drive technological advancement but also bring convenience and well-being to humanity. Today, we will explore a critical chemical process—the conversion of acetylene to vinyl acetate—along with the scientific principles behind this reaction and its practical applications.
Acetylene, an essential organic compound, can be synthesized through various methods. One of the most common and efficient approaches involves reacting calcium carbide (electric arc furnace coke) with water. This reaction produces acetylene while generating byproducts such as acetaldehyde and calcium carbonate. these byproducts can be removed through subsequent purification steps, leaving acetylene as the target product.
The properties of acetylene underscore its industrial significance. As a highly flammable gas with unique chemical characteristics, it serves as a key reactant in numerous processes. For instance, acetylene acts as a reducing agent in the synthesis of rubber, plastics, and other polymers. Additionally, it is used in manufacturing dyes, pharmaceuticals, and other chemicals.
Vinyl acetate, another vital organic compound, finds widespread use in industries. It serves as a solvent, plasticizer, emulsifier, and primary component of coatings. Its molecular structure imparts distinct physical and chemical properties, enabling diverse applications across fields.
In laboratory settings, vinyl acetate can be produced by reacting acetylene with water. Initially, acetylene is introduced into a water-containing vessel. As acetylene is added, water decomposes, yielding hydrogen, oxygen, and acetic acid. This exothermic reaction requires cooling to prevent overheating. By adjusting temperature and pressure, reaction rates and product yields can be controlled.
Industrially, the reaction between acetylene and water often proceeds under high pressure to enhance efficiency and yield. To ensure safety and environmental compliance, measures such as explosion-proof equipment, stringent temperature/pressure controls, and routine quality monitoring of reactants and products are implemented.
Beyond laboratory and industrial applications, the acetylene-water reaction holds significant scientific research value. Studying this reaction deepens our understanding of chemical reaction mechanisms, advancing theoretical chemistry. it provides a pathway for synthesizing novel organic compounds, offering innovative strategies for chemical synthesis and drug development.
the conversion of acetylene to vinyl acetate is a cornerstone chemical reaction with broad industrial relevance. By comprehending its principles and processes, we can better leverage this reaction to propel advancements in chemical sciences. Looking ahead, this reaction is poised to continue delivering benefits and progress for society.
