The Chlorination Of Vinyl Chloride

This colorless compound is an important industrial chemical chiefly used to produce the polymer polyvinyl chloride.

The chlorination of vinyl chloride.

Samples of chlorinated poly vinyl chloride cpvc and chlorinated β β dideuterated poly vinyl chloride β β d2 cpvc were prepared under identical reaction conditions. 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. Heating 1 2 dichloroethane in the presence of a charcoal catalyst gives vinyl chloride. Vcm is among the top twenty largest petrochemicals in world production.

The microstructure of cpvc and β β d2 cpvc was characterized by a combination of 1h nmr 13c nmr spectroscopy and analytically determined chlorine content. This catalytic method enables a green route to aryl z vinyl chlorides. In one ethylene is converted to 1 2 dichloroethane ethylene chloride by reaction with chlorine. The major industrial preparation of vinyl chloride begins with ethylene and has two variants.

The five main processes used in the production of vinyl chloride monomer vcm are. The reaction of aromatic ketones with bis trichloromethyl carbonate afforded aryl z vinyl chlorides in the presence of scandium triflate dmf and benzoyl chloride as catalysts. About 13 billion kilograms are produced annually. Direct chlorination ch 2ch 2 cl 2 clch 2ch 2cl edc oxychlorination ch 2ch 2 2 hcl o 2 edc h 2o edc pyrolysis 2 edc 2 ch 2chcl vcm 2 hcl overall reaction 2 ch 2ch 2 cl 2 o 2 2 ch 2chcl h 2o balanced process for vinyl chloride production no generation of hcl.