The invention relates to a process of depolymerization of a polyester feedstock comprising PET, which comprises: a) a conditioning step; b) a glycolysis step in the presence of diol; c) a step of separation of the diol, producing at least a gaseous diol effluent, at least a liquid diol effluent and a liquid monomers effluent; g) a step of separating said liquid monomers effluent into a heavy impurities effluent and a prepurified monomers effluent, this step being conducted with a residence time of less than 10 min; e) a step of decolourizing the prepurified monomers effluent, in the presence of at least one adsorbent, and f) a diol purification step, which is supplied with at least a gaseous diol effluent and at least a liquid diol effluent, which are obtained from step c), and which produces a purified diol effluent and one or more impurities effluent(s).

The present invention relates to a process for degrading a plastic product comprising at least one polymer, said process comprising the steps of foaming at least partially the plastic product; and depolymerizing at least one target polymer of the at least partially foamed plastic product, wherein the step of foaming is performed at a temperature at which the plastic product is in a partially or totally molten state.

The present invention relates to a process for degrading a plastic product comprising at least one polymer, the process comprising submitting the plastic product to a spinning step to obtain fibers of said plastic product; and depolymerizing at least one polymer of said fibers.

An apparatus comprises a nozzle for supplying a flow of polymeric material, a separating element for separating a dose of polymeric material from the flow supplied by the nozzle, at least one mould for making an object by compression moulding the dose, at least one conveying element for conveying the dose separated by the separating element towards the mould. The conveying element is movable along a path in an atmospheric environment. The apparatus further comprises a recycling device intended for receiving a polymeric material to be recycled and for providing at its outfeed a melted regenerated polymeric material suitable for being moulded. The nozzle is connected to the recycling device so that the nozzle is fed with the regenerated polymeric material coming from the recycling device.

The invention relates to a method for decontaminating recycled plastic materials, which comprises the steps of selecting, grinding, washing, rinsing, drying and decontaminating, wherein decontaminating is carried out by means of the steps of extracting and rinsing, and extracting is carried out using a water-soluble solvent having a boiling point greater than 180° C. at atmospheric pressure.

Provided is a method of efficiently removing an ink layer. The method of removing an ink layer from a shrink sleeve label includes preheating the shrink sleeve label including the ink layer, shredding the shrink sleeve label after the preheating to fabricate shrink sleeve label pieces , and removing the ink layer from the shrink sleeve label pieces by alkaline desorption. A temperature of the preheating is the same as a temperature of the alkaline desorption or higher than the temperature of the alkaline desorption.

The present disclosure discloses a preparation method of an ultraviolet (UV)-resistant and transparent lignin-based polyurethane (PU) elastomer. During the synthesis process, natural lignin-based polyols are directly used as an end-capping agent, isophorone diisocyanate and 2,2-dimethylolbutyric acid are used as a hard segment and polyether chain polyols are used as a soft segment, to synthesize a PU elastomer with a transparent brown appearance, excellent high elasticity and elastic recovery performance, as well as excellent mechanical properties, excellent UV resistance and repeatable processability. The lignin-based PU elastomer has a simple preparation process, and has great potential values for use in the fields such as PU elastomer film, fabric coating, and elastic fiber and biomass polymer materials.

A movable solar module disassembling apparatus according to an embodiment of the present disclosure includes a movable container unit that is hollow, can be moved by itself or by external power, and has at least one door being able to expose the inside by opening and closing, a frame separation unit that is disposed in the movable container unit, includes a frame separation blade pressing and separating the frame from the module body, is supplied with the solar module, and discharges the module body after separating the frame, and a disassembling unit that is disposed continuously with the frame separation unit in the movable container unit, includes a scrapper scraping and separating the stacked film from the glass plate, is supplied with the module body, and disassembles and discharges the module body into the stacked film and the glass plate.

A solar module lifting apparatus includes a base supported on the ground, a cylinder module including cylinder units disposed on the base and changing in height by contracting and stretching, and a rotary supply plate having one side supporting a solar module and the other side coupled to the cylinder module and moving up and down the solar module by operation of the cylinder module, in which the rotary supply plate includes a first hinge and a second hinge spaced apart from each other on the other side, the cylinder module includes a first cylinder unit and a second cylinder unit of which the upper ends are coupled to the first hinge and the second hinge by shafts, respectively, and at least one of the height and the inclination of the rotary supply plate is adjusted by contracting or stretching of the first cylinder unit and the second cylinder unit.

A method and apparatus for obtaining carbon fiber from carbon fiber waste (e.g., pre-preg and CFP waste). The method and apparatus selects, or is controlled to select, between using an oxygen free pyrolytic process to volatilize the epoxy resin or other matrix in which the fibers are held to liberate the fibers therefrom and, depending upon the type of pre-preg waste, using a reactor environment where the reactor atmosphere has about 1% to about 2% oxygen by volume. The reactor has a counterflow such that the carbon fibers are moved in one direction and the off gasses are moved in the opposite direction. A combination of steam at the reactor outlet and vacuum pressure at the reactor inlet create the counter flow.