Mechanochemical process for the production of persistent organic pollutants and other organohalogen compounds free value products from wastes of plastics and plastic laminates

摘要

Mechanochemical process for the production of value products free from persistent organic pollutants and other organohalogen compounds, from waste of pure and non-pure plastics and plastic laminates contaminated with persistent organic pollutants and / or containing other organohalogen compounds, characterized in that (i) the waste is comminuted so that the particle size distribution is as narrow as possible, (ii) the shredded waste is placed in a mill containing grinding balls and further comminuted by grinding, (iii) adding at least one dehalogenating agent in a molar excess with respect to the amounts of persistent organic pollutants and / or other organohalogen compounds present, (iv) further grinding the mixture of ground crushed waste and dehalogenating agent and terminating the grinding after a preselected time, (V) the resulting products of persistent organic pollutants and other organohalogen free value products separated from the grinding balls and separating the resulting halogen-containing water-soluble products by washing with aqueous solvents and / or the resulting halogen-containing, water-insoluble products not washed out, but as fillers in the Leaves value products and (vi) the washed value-added products after drying and the non-washed value-added products are checked whether they still contain persistent organic pollutants and / or other organohalogen compounds, Value products, produced by the mechanochemical process, and their use.