A polyester film is provided. The polyester film includes 10 wt % to 100 wt % of a regenerated polyester resin. The regenerated polyester resin includes a physically regenerated polyester resin and a chemically regenerated polyester resin. Based on a total weight of the regenerated polyester resin being 100 wt %, an amount of the chemically regenerated polyester resin is larger than or equal to 5 wt %.

According to the invention, a method for treating electronic waste with a view to individually recovering metals included in such waste is provided. Said method is characterized in that it includes the series of the following steps: grinding the waste under conditions suitable for individually separating the different metal components of the waste; mixing the ground waste with a liquid such as to form a suspension; gravitationally separating the suspension such as to separate the particles having the highest densities and containing the majority of the metals from the particles having the lowest densities; and densimetrically separating the suspension containing the majority of the metals such as to obtain suspensions containing the individually separated metals.

The invention relates to a continuous method for removing a solvent from a suspension or solution comprising a target polymer, wherein the method comprises the steps of delivering said suspension or solution to an extruder, wherein said extruder comprises a size classification unit that is designed to be permeable for the solvent and impermeable for the target polymer; and filtration and extrusion of said suspension or solution in said extruder. The invention also relates to a plastic waste recycling system for recycling a target polymer. Furthermore, the invention also relates to a polymer material obtained by this recycling method.

A system and process for sorting and recovery of recyclable materials, and in particular, sorting and recovery of recyclable materials from mixed waste comprising municipal solid waste in a materials recovery facility.

A method of manufacturing a part, includes: obtaining recycled fibers; mixing the recycled fibers with a thermoplastic to obtain a fiber-reinforced intermediate; and manufacturing the part with the fiber-reinforced intermediate. The recycled fibers may come from a grinding operation of recycled composite parts. A feedstock may be manufactured using recycled fibers. The feedstock may then be used in subsequent manufacturing.

A method of recovering filler material from a polymer material comprises (a) heating the polymer material to a first temperature; (b) heating the polymer material to a second temperature higher than the first temperature resulting in a pyrolyzed material; (c) elutriating the pyrolyzed material to obtain a separated mixture; and (d) filtering the separated mixture to obtain the filler material.

Disc screen for separating solid residues, which includes multiple parallel rotation shafts, each of which carries a plurality of discs fixed thereto. In addition, the disc screen includes multiple shaped rings, which are each constituted by multiple sectors removably mounted around the rotation shafts, and they are placed between the discs in order to simply and easily vary the screening section. The external edge of each shaped ring is provided with thrust sections, which are adapted to intercept the material to be screened in order to subject the latter to a greater stress, which facilitates a more efficient separation of the materials, and push upward components of light and filamentous material so as to prevent possible entangling and obstructions of such materials at the rotation shafts.

System and methods for recycling a material comprising a polymer in an expanded state is disclosed. The system can include a shredder, a heating chamber operatively connected to the shredder, a condenser operatively connected to the heating chamber, a solvent tank operatively connected to the condenser, and a circulation unit operatively connected to the solvent tank and the heating chamber.

A cyclonic separation and materials processing method and system is presented in which materials entry at one end and which is arranged so that the materials that enter will be given a tangential velocity component as they enter. Specific embodiments include a three-dimensional sorting system with the use of an outward centrifugal motion and up/down (or vertical) motion flow of water or other media, which can be thought of as “a three-dimensional separation”.

There are provided processes for recycling waste such as polystyrene thermoplastic polymer waste and/or polystyrene thermoplastic copolymer waste as well as recycled polystyrene thermoplastic polymer and/or recycled thermoplastic copolymer that may, for example, be obtained from such processes. The processes can comprise dissolving the waste in cymene, xylene or ethylbenzene or a suitable solvent, to obtain a mixture followed by heating the mixture under acidic conditions and then optionally neutral conditions in the presence of a reducing agent then cooling to obtain a supernatant comprising polystyrene thermoplastic polymer and/or polystyrene thermoplastic copolymer and a solid waste residue. The supernatant can optionally be treated with a filtration aid, then the supernatant can be contacted with a hydrocarbon polystyrene non-solvent under conditions to obtain precipitated polystyrene thermoplastic polymer and/or precipitated polystyrene thermoplastic copolymer which can be washed with additional hydrocarbon polystyrene non-solvent, and optionally dried and formed into polystyrene thermoplastic polymer pellets and/or polystyrene thermoplastic copolymer pellets.