Compositions and methods for recycling plastics comprising polymers via solvent treatment

摘要

Compositions containing a turpentine liquid and methods are disclosed for dissolving, dissolving via melting, selectively dissolving via melting, decomposing plastic comprising a chlorine-containing polymer or thermosetting polymer, and/or co-dissolving plastic with fossil fuel for purifying, separating, recovering or recycling plastic-containing material.

主权项

1. A method of treating a material selected from the group consisting of polyvinyl chloride (PVC), polyethylene terephthalate (PET), and mixtures thereof, said method of treating selected from the group consisting of dissolving, dissolving via melting, selective dissolving, and decomposing said material comprising the steps of contacting said material with a plastic dissolving and/or decomposing composition comprising a turpentine liquid to form a dissolution and/or decomposition mixture, wherein said material is contacted with said plastic dissolving and/or decomposing composition at a ratio of greater than 1:1 of said plastic dissolving and/or decomposing composition to said material, wherein said turpentine liquid is selected from the group consisting of synthetic turpentine, mineral turpentine, alpha-terpineol, beta-terpineol, gamma-terpineol, 3-carene, anethole, nopol, pinane, camphene, p-cymene, anisaldehyde, 2-pinane hydroperoxide, 3,7-dimethyl-1,6-octadiene, isobornyl acetate, terpin hydrate, ocimene, 2-pinanol, dihydromyrcenol, isoborneol, alloocimene, alloocimene alcohols, geraniol, 2-methoxy-2,6-dimethyl-7,8-epoxyoctane, camphor, p-menthan-8-ol, alpha-terpinyl acetate, citral, citronellol, 7-methoxydihydrocitronellal, 10-camphorsulphonic acid, p-menthene, p-menthan-8-yl acetate, citronellal, 7-hydroxydihydrocitronellal, menthol, menthone, polymers thereof, and mixtures thereof, and further comprising the step of recovering said material from said composition.