Vinyl Chloride Manufacturing Process

Heavy ends oxy chlorination direct chlorination edc purification edc pyrolysis vcm purification hcl recycle air or o 2 ethylene cl 2 light ends.

Vinyl chloride manufacturing process.

Vinyl chloride is produced from ethylene in two step process. Manufacturing polyvinyl chloride pvc is a three step process described below. Balanced process for vinyl chloride production no generation of hcl 95 of the world s vcm is produced utilizing the balanced process. In the uk and new zealand a similar material is known.

Polyvinyl chloride or vinyl compound is chiefly made from two basic substances salt and crude oil. Pvc is produced by polymerization of vinyl chloride monomer vcm. Direct chlorination by itself is a process that operates at lower temperatures and produces fewer by products when compared to oxychlorination. Vinyl chloride was first produced in 1835 but did not go into regular production until the early twentieth century.

Step 1 producing ethylene dichloride c2h4cl2. Vinyl siding is plastic exterior siding for houses and small apartment buildings used for decoration and weatherproofing imitating wood clapboard board and batten or shakes and used instead of other materials such as aluminum or fiber cement siding it is an engineered product manufactured primarily from polyvinyl chloride pvc resin. 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. 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. 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. Alternatively watch our short video for an overview of the process and the manufacturing supply chain. The crude oil petroleum or natural gas is used to obtain ethylene.

About 13 billion kilograms are produced annually. Pvc polyvinyl chloride manufacturing process of polyvinyl chloride pvc. Flow sheet of production of ethylene dichloride.