1、Optimization of methanol–vinyl acetate azeotrope separation process

Aspen Plus simulations were utilized to assess the feasibility of PSD, with particular emphasis on critical process parameters such as the number of theoretical plates, feed position, reflux ratio, and sidestream extraction location.

2、(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...

3、Simulation and Optimization of Separation of Vinyl Acetate by Dividing

Based on the analysis of the conventional two column distillation separation process, the separation process scheme of vinyl acetate partition tower was designed, calculated, and optimized by...

Vinyl Acetate from ethylene, acetic acid and oxygen Industrial Plant

In this work, a detailed study was made based on a simulation of the process using the Aspen Plus v2006 program and establishing the correct operation conditions. The simulated process involves, from the preparation of the raw materials until the dehydration of the monomer.

Removal kinetics of vinyl acetate under aerobic and anoxic conditions

Considering the previous studies in the literature, testing the biodegradability of vinyl acetate under both aerobic and anoxic conditions, together with evaluating the effect of other mechanisms, such as adsorption and volatilization, on the removal of vinyl acetate, can be regarded as the prominent part of this study.

Purification Process Design of Vinyl Acetate Based on

Based on Aspen Plus process simulation, the purification stage of the production of vinyl acetate by 450000 tons of calcium carbide acetylene process was optimized.The main equipment involved in the process are degassing tower, deacetaldehyde tower, crude separation tower, vinyl acetate refining tower, acetic acid distillation column and so on.

(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.

SEPARATION OF MIXTURES OF VINYL ACETATE AND METHANOL CONTAINING MINOR

In both cases the vinyl acetate is obtained as over-head product together with methyl acetate and acetaldehyde, while methanol and extracting agent form the bottom product.

PROCEEDINGS OF SPIE

At present, the majority of vinyl acetate manufacturers worldwide use ethylene method, acetylene method, and methyl acetate carbonylation method, all of which can produce high-purity vinyl...

Phase equilibrium and separation process of byproduct vinyl acrylate in

Vinyl acrylate is one of the byproducts in the ethylene vapor phase method for the production of vinyl acetate (VAc), which not only has a toxic effect on the catalyst but also affects the purity of the product.

In the vast realm of chemistry, organic synthesis represents a pathway of continuous exploration and discovery. Among the myriad of organic compounds, vinyl acetate stands out as a critical substance due to its distinctive chemical structure and versatile applications. This article delves into the extraction methods of vinyl acetate and their practical implications, aiming to provide insights and inspiration for researchers in related fields.

Vinyl Acetate: An Organic Compound with Broad Applications Vinyl acetate, a ubiquitous organic compound, has gained significant attention due to its unique chemical properties and widespread utility. It serves as a key raw material in the production of plastics, rubber, and coatings, while also playing a pivotal role as an intermediate in biomedical research. Thus, extracting vinyl acetate from natural sources not only meets industrial demands but also aligns with environmental preservation goals.

Traditional Synthesis Methods: High Yield but Environmental Costs Conventional methods for producing vinyl acetate primarily rely on chemical synthesis. While these approaches enable large-scale production, they often entail high energy consumption, severe environmental pollution, and dependence on non-renewable resources. In recent years, the advent of green chemistry and sustainable development principles has spurred interest in more eco-friendly extraction techniques.

Supercritical Fluid Technology: A Green Alternative One emerging method involves the use of supercritical fluid technology, which employs supercritical carbon dioxide (CO₂) as a solvent. In its supercritical state, CO₂ exhibits exceptional solvating power, effectively dissolving vinyl acetate while avoiding the volatility and flammability issues associated with traditional organic solvents. Additionally, the recyclability of supercritical CO₂ significantly reduces environmental impact, positioning this approach as a promising green chemistry solution.

Microwave-Assisted Extraction: Efficiency at a Cost Microwave-assisted extraction (MAE) is another innovative technique for vinyl acetate recovery. By leveraging microwave energy to enhance solvent activity, MAE accelerates reaction rates and improves extraction efficiency. the high upfront costs of specialized equipment may limit its widespread adoption in industrial settings, despite its energy-saving advantages.

Biotechnology: A Sustainable Pathway Beyond physical and chemical methods, biotechnology offers a sustainable alternative. Through microbial fermentation, enzymes produced by metabolically engineered organisms can catalyze the conversion of acetic acid and ethylene into vinyl acetate. This bio-based approach is not only environmentally friendly but also cost-effective, holding substantial potential for industrial implementation.

Balancing Efficiency, Cost, and Sustainability** The extraction of vinyl acetate encompasses diverse methodologies, each with distinct advantages and limitations. When selecting an appropriate technique, factors such as production costs, environmental footprints, and market demand must be carefully weighed. Looking ahead, advancements in technology promise the development of even more efficient and eco-friendly extraction methods. Such innovations will not only drive progress in the chemical industry but also contribute to global sustainability efforts.

This translation maintains technical accuracy while adapting the content for English-speaking readers. Key terms (e.g., "supercritical CO₂," "microwave-assisted extraction") are standardized, and the structure mirrors the original article’s logical flow. Let me know if further refinements are needed!