1、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.

2、What are the common by

Vinyl acetate production process by-product treatment: challenges and solutions With the wide application of vinyl acetate in the chemical industry, the problem of by-products in the production process has been paid more and more attention.

3、KMC Study on Byproduct Formation in the Process of Acetylene to Vinyl

A multiscale simulation on the formation mechanism of crotonaldehyde and the influence of operating parameters on the process during the production of vinyl acetate from acetylene.

4、Vinyl Acetate Production from Acetic Acid and Ethylene

This report presents a cost analysis of Vinyl Acetate Monomer (VAM) from acetic acid and ethylene. The process examined is a typical vapor phase oxidation process. In this process, vapor acetic acid, ethylene and oxygen react in a catalytic multi-tube reactor, producing Vinyl Acetate.

5、Vinyl Acetate Monomer Production in Industrial Plants

This chapter presents Vinyl Acetate plant capital costs associated with Vinyl Acetate Monomer (VAM) from acetic acid and ethylene, from design to industrial plant startup.

Vinyl acetate production methods and production process, what are the

In this article, we will introduce in detail the production methods and production process of vinyl acetate, what are the common raw materials, and understand the raw materials involved in the various manufacturing methods of vinyl acetate.

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.

A combination of DFT and kMC to study on the formation mechanism of

In this paper, the mechanism of ethyl acetate generation during ethylene vinyl acetate reaction on PdAu catalysts was systematically investigated using a combination of density functional theory (DFT) and kinetic Monte Carlo (kMC) simulations.

Production Characteristics of Vinyl Acetate

This article will provide a detailed introduction to the production method and process flow of vinyl acetate, the commonly used raw materials, and the various raw materials involved in the manufacturing methods of vinyl acetate.

Progress in Vinyl Acetate Production Process

Vinyl acetate is an important industrial organic raw material. There are two main vinyl acetate production processes, i.e. acetylene method and ethylene method.

In the chemical industry, the synthesis of vinyl acetate is a critical industrial process. Vinyl acetate, an essential organic compound, is widely used in plastics, rubber, and coatings. its production inevitably generates byproducts that pose environmental and health risks. This article explores these byproducts and their ecological impacts.

I. Synthesis Process of Vinyl Acetate

Vinyl acetate is typically synthesized via the reaction of ethylene and acetic acid under polymerization conditions. The exothermic reaction requires precise temperature and pressure control. During this process, byproducts such as acetic anhydride, acrylic acid, and acetaldehyde may form.

II. Byproducts and Environmental Impacts

1. Acetic Anhydride Acetic anhydride is toxic, causing skin irritation, respiratory distress, and nervous system damage upon prolonged exposure. It is corrosive and highly poisonous, capable of damaging liver and kidney function or causing death.

2. Acrylic Acid While acrylic acid itself is non-toxic, it can oxidize into peroxides under high temperatures or sunlight, posing latent risks to ecosystems and human health.

3. Acetaldehyde Acetaldehyde, a volatile liquid with a pungent odor, is toxic. Inhaling high concentrations can induce headaches, nausea, vomiting, or coma. It also reacts with atmospheric oxygen to form ozone, harming air quality.

4. Other Byproducts Additional hazardous byproducts, including methanol, formaldehyde, and phenol, share similar toxicological profiles, threatening both environmental and human safety.

III. Environmental Impact Assessment

To evaluate the ecological risks of these byproducts, consider:

• Toxicity Analysis: Quantify harm to humans and ecosystems.
• Ecological Risk Evaluation: Assess impacts on aquatic life, soil organisms, and plant diversity.
• Emission Control: Implement strict regulations for waste gas, water, and solid waste treatment to ensure safe concentration limits.

IV. Recommendations and Prospects

To mitigate environmental impacts:

1. Technological Innovation: Optimize reaction conditions and catalysts to reduce byproduct formation.
2. Regulatory Frameworks: Enforce stringent environmental laws and penalize non-compliance.
3. Clean Production: Adopt low-toxicity raw materials and advanced pollution control technologies.
4. Public Awareness: Enhance environmental education and corporate accountability through media oversight.

byproducts from vinyl acetate production pose significant risks. Addressing these challenges requires coordinated efforts in technology, policy, and public engagement to achieve sustainable development.