Commercial Manufacture Of Vinyl Acetate

Vinyl acetate is the acetate ester of vinyl alcohol.

Commercial manufacture of vinyl acetate.

Vinyl acetate monomer vam production and manufacturing process. Since vinyl alcohol is highly unstable with respect to acetaldehyde the preparation of vinyl acetate is more complex than the synthesis of other acetate esters. 1 vinyl acetate has a sweet pleasant fruity odor in small quantities but may be sharp and irritating at higher levels. The odor threshold is 0 5 parts per.

Vam is also used to make polyvinyl butyral pvb which is used in laminated safety glass for cars and buildings. The chemical formula for vinyl acetate isc h o and its molecular weight is 86 09 g mol. Vinyl acetate c4h6o2 cid 7904 structure chemical names physical and chemical properties classification patents literature biological activities safety. Eva which has less than 50 vinyl acetate in content is mainly used for films and wire and cable insulation.

Ethylene vinyl acetate eva resin is also made from vam and is used in the manufacture of packaging film heavy duty bags extrusion coating wire and cable jacketing hot melt adhesives and cross linked foam. 2009 with production capacity of 330 000 metric tons per annum mtpa. Vinyl acetate monomer is colorless liquid produced by international vinyl acetate company ivc an affiliate of sipchem from nov. The major industrial route involves the reaction of ethylene and acetic acid with oxygen in the presence of a palladium catalyst.

Two different water borne dispersions latex containing different amounts of vinyl acetate and a commercial vinyl ester monomer veova10 were evaluated by incorporating them in paint for mulations for wall protection. We manufacture these high performance emulsions in all three major regions of the world at our facilities throughout north america europe and asia. Celanese emulsion polymers is a global leader in vinyl acetate ethylene vae emulsions. 1 vinyl acetate occurs as a clear flammable l 4 iqu 6 id 2 that dissolves easily in water.

Ethylene has now become the preferred feedstock with the gas phase route used due problems of corrosion and byproduct. The main properties such as hiding power washability tension of adhesion and elasticity were assessed. Acetylene based technology was used first in the commercial production of vam with the gas phase process preferred to the liquid phase reaction. Vae which contains more than 50 vinyl acetate is primarily used as cement additives paints and adhesives.