MECHANOCHEMICAL PROCESS FOR PRODUCING VALUABLE PRODUCTS FREE FROM PERSISTENT ORGANIC POLLUTANTS AND OTHER ORGANOHALOGEN COMPOUNDS FROM WASTE COMPRISING PLASTICS AND PLASTIC LAMINATES

摘要

Mechanochemical process for producing valuable products that are free from persistent organic pollutants and other organohalogen compounds from waste comprising single-type and non-single-type plastics and plastic laminates that are contaminated with persistent organic pollutants and/or contain other organohalogen compounds, in which (i) the waste is comminuted, resulting in the narrowest possible particle size distribution, (ii) the comminuted waste is loaded into a mill, which contains grinding balls, and is further comminuted by grinding, (iii) at least one dehalogenating agent is added in a molar excess with respect to the existing amounts of persistent organic pollutants and/or other organohalogen compounds, (iv) the mixture of ground comminuted waste and dehalogenating agent is ground further and the grinding is ended after a preselected time, (v) the resultant valuable products free from persistent organic pollutants and other organohalogen compounds are separated from the grinding balls, and the halogen-containing, water-soluble products produced are separated by washing with aqueous solvents and/or the halogen-containing, water-insoluble products produced are not washed out and left as fillers in the valuable products, and (vi) the washed valuable products, after drying, and the non-washed valuable products are checked to ascertain whether they still contain persistent organic pollutants and/or other organohalogen compounds, wherein (vii) at least one additive is added before and/or after process step (iv); valuable products, produced with the aid of the mechanochemical process, and use thereof.