What is vinyl chloride monomer used for?
Vinyl Chloride Monomer (VCM) is a colorless, flammable gas at room temperature. Its chemical formula is C2H3Cl. It is primarily used to manufacture polyvinyl chloride (PVC), a very stable, non-flammable, lightweight and durable plastic.
How is vinyl chloride monomer synthesized?
The five main processes used in the production of vinyl chloride monomer (VCM) are: (1) direct chlorination of ethylene to form EDC, (2) oxychlorination of ethylene to form from recycled HCl and oxygen, (3) purification of EDC, (4) thermal cracking of EDC to form VCM and HCl, and (5) the purification of VCM.
Which catalyst is used in EDC manufacturing?
Direct Chlorination Process for Producing EDC The direct chlorination process involves a liquid phase reaction of ethylene and chlorine using an FeCl3 catalyst.
What is VCM in manufacturing?
Vinyl chloride is an organochloride with the formula H2C=CHCl that is also called vinyl chloride monomer (VCM) or chloroethene. This colorless compound is an important industrial chemical chiefly used to produce the polymer polyvinyl chloride (PVC).
Is VCM a VOC?
Vinyl chloride belongs to the group volatile organic compounds (VOC). Vinyl chloride is a colourless gas with a characteristic sweetish odour. It is classified as very flammable. Vinyl chloride is mainly used to produce polyvinyl chloride (PVC)….Vinyl chloride (VCM)
| Name PRTR | Vinyl chloride (VCM) |
|---|---|
| Chemical formula | C2H3Cl |
How is vinyl chloride used?
Vinyl chloride is a colorless, flammable gas that evaporates very quickly. It’s used to make polyvinyl chloride (PVC) pipes, wire coatings, vehicle upholstery, and plastic kitchen ware. Higher than normal levels of vinyl chloride may be present inside new cars as the chemical evaporates from new vinyl products.
How is vinyl chloride formed?
Vinyl chloride is produced in a two step process from ethylene. Ethylene first reacts with Chlorine to produce Ethylene dichloride. The purified Ethylene dichloride undergoes selective cracking to form vinyl chloride. This process results in high purity EDC and high yields.
How many NMR signals does vinyl chloride give?
In NMR spectroscopy vinyl chloride gives two signals
Which reactant is used for manufacturing of vinyl chloride?
Typically, a vinyl chloride plant is designed to integrate the two processes so that the hydrogen chloride produced by heating 1,2-dichloroethane is used as a reactant in the oxychlorination method.
What is polymer of vinyl chloride?
Polyvinyl chloride or vinyl (PVC) is a polymer in which more than half of the content by weight consists of chlorine (Vesterberg et al., 2005). PVC is produced by polymerization of the vinyl chloride monomer. PVC comes in two basic forms: Rigid (sometimes abbreviated as RPVC) and flexible.
Who produces vinyl chloride?
OxyChem’s affiliate OxyVinyls, LP is the largest vinyl chloride monomer (VCM) producer in the United States.
What is vinyl chloride monomer (VCM)?
Vinyl chloride monomer (VCM) is one of the world’s most important and largest commodity chemicals. VCM is used primarily for the production of polyvinyl chloride (PVC) homopolymer and copolymer resins.
What is the chemical economics handbook – vinyl chloride monomer?
IHS Markit’s Chemical Economics Handbook – Vinyl Chloride Monomer (VCM) is the comprehensive and trusted guide for anyone seeking information on this industry. This latest report details global and regional information, including
What is the vinyls chain?
The vinyls chain— ethylene dichloride (EDC), vinyl chloride monomer (VCM), and polyvinyl chloride (PVC)—is a key component of the global petrochemical and thermoplastics sectors. VCM production is based mainly on the ethylene feedstock route, except in mainland China, where the acetylene-based capacity dominates.
Which countries consume the most vinyl chloride monomer?
The following pie chart shows world consumption of vinyl chloride monomer: In 2018, Northeast Asia was the largest consumer of VCM, accounting for over half of the world’s VCM demand. China is the largest overall player in the VCM market, with more than 40% of the total global capacity, production, and consumption in 2018.