Environment-friendly high-solid alkyd resin prepared from swill-cooked dirty oil and synthesis process

The invention discloses environment-friendly high-solid alkyd resin prepared from swill-cooked dirty oil and a synthesis process. With the waste and recycled swill-cooked dirty oil as a main material,a mixture of soybean oil, Sichuan pepper seed oil and linseed oil in different proportions is taken as iodine value regulator, environment-friendly solvents such as dimethyl carbonate and polyoxymethylene dimethyl ethers are introduced and taken as dilution solvents, the environment-friendly high-solid alkyd resin with solid content being 83% or higher is prepared with a firstly alcoholysis and later esterification condensation polymerization process. Alkyd paint prepared from the alkyd resin has the characteristics of high gloss, high hardness, fast drying capacity, good corrosion resistanceand decorating property and the like, construction is facilitated, and the content of construction VOC (volatile organic compounds) is not higher than 350 g/L, so that environmental friendliness is outstanding, and the cost o