Vinyl Chloride Production Process

Vinyl chloride is an organochloride with the formula h 2 c 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.

Vinyl chloride production process. Manufacturing polyvinyl chloride pvc is a three step process described below. Vinyl chloride production process download pdf info publication number us5728905a. Vinyl chloride is produced from ethylene in two step process. Direct chlorination by itself is a process that operates at lower temperatures and produces fewer by products when compared to oxychlorination.

Us5728905a us08 433 384 us43338495a us5728905a us 5728905 a us5728905 a us 5728905a us 43338495 a us43338495 a us 43338495a us 5728905 a us5728905 a us 5728905a authority us united states prior art keywords sub ethane hcl. The salt is used to obtain chlorine through a process called electrolytic disassociation of salt. The process chosen for vinyl chloride production is a combination of two processes direct chlorination and oxychlorination. Pvc is produced by polymerization of vinyl chloride monomer vcm.

Step 1 producing ethylene dichloride c2h4cl2. Alternatively watch our short video for an overview of the process and the manufacturing supply chain. Vinyl chloride has been used in the past as an anaesthetic and as an aerosol spray propellant but its principle use has been to produce the polymer polyvinyl chloride pvc or vinyl. The main polymerization methods include suspension emulsion and bulk mass methods.

Vinyl chloride monomer vcm production and manufacturing process 2010 04 28 commercial production of vcm started in the 1920s based on the catalytic hydrochlorination of acetylene but this route suffered from high energy costs and has become obsolete except for china. Polyvinyl chloride or vinyl compound is chiefly made from two basic substances salt and crude oil. This process is referred to as the balanced process. Balanced process for vinyl chloride production no generation of hcl 95 of the world s vcm is produced utilizing the balanced process.

The crude oil petroleum or natural gas is used to obtain ethylene. About 13 billion kilograms are produced annually. Flow sheet of production of ethylene dichloride.