Commercial Manufacture Of Vinyl Acetate

Acetic acid ə ˈ s iː t ɪ k systematically named ethanoic acid ˌ ɛ θ ə ˈ n oʊ ɪ k is a colourless liquid organic compound with the chemical formula ch 3 cooh also written as ch 3 co 2 h c 2 h 4 o 2 or hc 2 h 3 o 2 when undiluted it is sometimes called glacial acetic acid vinegar is no less than 4 acetic acid by volume making acetic acid the main component of vinegar.

Commercial manufacture of vinyl acetate.

The odor threshold is 0 5 parts per. 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. Vam is also used to make polyvinyl butyral pvb which is used in laminated safety glass for cars and buildings. Eva which has less than 50 vinyl acetate in content is mainly used for films and wire and cable insulation.

Acetylene based technology was used first in the commercial production of vam with the gas phase process preferred to the liquid phase reaction. The major industrial route involves the reaction of ethylene and acetic acid with oxygen in the presence of a palladium catalyst. Celanese emulsion polymers is a global leader in vinyl acetate ethylene vae emulsions. Vae which contains more than 50 vinyl acetate is primarily used as cement additives paints and adhesives.

Vinyl acetate c4h6o2 cid 7904 structure chemical names physical and chemical properties classification patents literature biological activities safety. 2009 with production capacity of 330 000 metric tons per annum mtpa. 1 vinyl acetate occurs as a clear flammable l 4 iqu 6 id 2 that dissolves easily in water. We manufacture these high performance emulsions in all three major regions of the world at our facilities throughout north america europe and asia.

1 vinyl acetate has a sweet pleasant fruity odor in small quantities but may be sharp and irritating at higher levels. Vinyl acetate monomer is colorless liquid produced by international vinyl acetate company ivc an affiliate of sipchem from nov. 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. The main properties such as hiding power washability tension of adhesion and elasticity were assessed.

Ethylene has now become the preferred feedstock with the gas phase route used due problems of corrosion and byproduct. Vinyl acetate is the acetate ester of vinyl alcohol. Three paint formula tions were prepared with different pvc values. Vam is consumed in the manufacture of ethylene vinyl acetate eva and vinyl acetate ethylene vae.