A method for deriving value from a mixed waste feedstock can include receiving a mixed waste feedstock including at least a reduced density biopolymer material and an organic feedstock. At least one of a fluid or a material that releases liquids during degradation is added to the mixed waste feedstock. The reduced density biopolymer material is separated, via density separation, from the mixed waste feedstock. The reduced density biopolymer material has a specific gravity below a specific gravity threshold. The reduced density biopolymer material separated from the mixed waste feedstock as a result of the separating is recovered.

A multi-tube pyrolysis system for waste plastic contains: a preparation system, a decomposition system, and a filtration system. The preparation system includes a collection module, a selection module, a crushing module, and a plastic extrusion module. The decomposition system includes a reaction furnace, a primary combustion chamber assembly, a secondary combustion chamber assembly, a cooling module, an oil storage tank, and a carbon storage tank. The reaction furnace includes multiple first delivery tubes, and the carbon storage tank has a water filtering module. The filtration system includes a heat exchanger, a rapid cooling device, and a cyclone separation module.

Presented and described is a method for reclaiming thermoplastic materials intended for recycling, such as, for example, polyethylene terephthalate (PET), in the form of flakes. According to the invention, in a first step, the flakes are exposed to an oxidative fluid and heat until contaminated flakes are modified such that, in a second step, they are separated from the remaining flakes as a result of this modification.

The present invention relates to a process for recycling polyolefin, comprising the steps of: 1) feeding a solid post-consumer polyolefin composition comprising polyolefin and contaminants and a flow of an extraction fluid to an extractor having a pressure of 100-1000 bar and a temperature of 20-80° C. to obtain a solid extracted composition, 2) melting the solid extracted composition to obtain a melted composition, 3) providing particles from the melted composition by: 3a) mixing a flow of a supercritical fluid in the melted composition in a pressure vessel to obtain a solution saturated with the supercritical fluid and 3b) passing the solution from the pressure vessel through a throttling device to a spraying tower to expand the solution to obtain polyolefin particles in the spraying tower.

The process disclosed herein is method of recovering aluminum from multilayered packaging. The process comprises subjecting multilayered packaging to a reactor with aqueous formic acid, wherein the solution is sonicated using sonic horns. This process allows the recovery of aluminum in its pure metal form. PP/PE components of the multilayered packaging are recovered utilizing density separation, while ink and PET components require further treatment in a toluene reactor which may include sonication.

The present invention relates to a method for preparing a composite resin composition by regenerating secondary battery waste separators of which one surface or both surfaces are coated with ceramic particles or aramids, and, more specifically, to a method for preparing a composite resin composition through: i) a pretreatment step of crushing secondary battery waste separators coated with ceramic particles and compression-crushing same into a smaller volume; ii) a step of mixing the pretreated waste separator material with a polyolefin-based material having excellent fluidity, other modifiers and additives, and melting, uniformly kneading and extruding same; and iii) a step of processing same into a pellet form. The present invention relates to an economical, efficient and eco-friendly process capable of preparing a variously usable novel composite resin composition from separator scraps coated with ceramic particles or aramids, which are generated during the manufacture of secondary batteries, and separators, which are inferior goods requiring disposal.

A process arrangement and a process for the production of a fiber-reinforced plastics component made of at least one continuous-fiber-reinforced semifinished textile fiber product with reactive thermoplastic matrix material, where during the manufacture of the semifinished fiber product trimming residues (m.sub.R, m.sub.A) arise, composed of a composite made of fibers and of the reactive thermoplastic matrix material, and during finishing of the finished plastics component final-trimming residues (m.sub.E) arise, composed of a composite of fibers and of polymerized thermoplastic matrix material, and are further processed in a recycling unit to give a recyclate. The trimming residues arising during the manufacture of the semifinished fiber product are polymerized in a preparatory unit and then are delivered in the invention to the recycling unit.

The present invention relates to a process for recycling polyolefin, comprising the steps of: 1) feeding a solid post-consumer polyolefin composition comprising polyolefin and contaminants and a flow of an extraction fluid to an extractor having a pressure of 100-1000 bar and a temperature of 20-80 C. to obtain a solid extracted composition, 2) melting the solid extracted composition to obtain a melted composition, 3) providing particles from the melted composition by: 3a) mixing a flow of a supercritical fluid in the melted composition in a pressure vessel to obtain a solution saturated with the supercritical fluid and 3b) passing the solution from the pressure vessel through a throttling device to a spraying tower to expand the solution to obtain polyolefin particles in the spraying tower.

A waste management system, primarily intended to be for waste floating in water, though it can also be used on land. A shredding device will reduce the size of the particles of waste. Ocean water is removed by a drying device. The dried waste material is cryogenically frozen using liquid nitrogen or other suitable means. The frozen waste material is then pulverized and ground into a powder. The powder may then be sprayed into a gas-filled chamber and heated. Temperature, pressure and humidity are maintained within the chamber for more than one minute. Microwave or other radiation and catalysts may be used to enhance the process of extraction. The processed material is then removed from the chamber. Carbon and water may be recycled. The carbon may be used as fuel by the ship. Water may also be used by the ship or returned to the ocean in a non-toxic condition.

A dynamic process for upcycling polymers. Polymers from a diverse post-consumer waste stream are gathered in a mixture. The mixture is extruded and combined with a liquid additive containing a particular PE wax at the verge of polymerization. The liquid additive is repolymerized into LDPE to form pellets. The pellets are delivered into a reactor and submerged in a suitable solvent to dissolve the LDPE. Causing a gradual and orderly separation of the remaining polymers from one another, resulting in a layered substrate. The suitable solvent, enzymes or depolymerizing compatible chemical is delivered into the reactor through independent pipes attached to tanks containing the suitable depolymerizing agent. The process repeats depolymerizing the layered substrate layer by layer with additional suitable solvents/enzymes or depolymerizing agents for each of the polymers resulting in the dissolving of the remaining polymers in an orderly manner producing a layered wax-like material for upcycling.