A continuous liquefying system for thermochemical treatment of plastic that has two different devices and complements. The devices comprise a first device, a second device, and a coupling device. In the first device, filled with water, the plastic is feed using a screw in a first port. The first device is used as a water airlock. The plastic is extracted from the first device using the coupling device having a screw, and is sent to the second device. From the first device to the second device there is a lateral screen, responsible for the retention of water. The second device has tubes filled with a heating fluid, that actuates heating the plastic material. The plastic material is liquefied and could be sent to other applications, such as thermochemical processes, thermoforming, and others.

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.

The present invention relates to a device to increase intrinsic viscosity of recycling polyester waste, first, shredding the recycled polyester waste, pouring the shredded polyester waste into a melting unit for smelting for achieving melting status, after filtration, pouring the semi-finished pellet into a reactor tank, the molecular chain of the melting polyester will depolymerize to a shorter molecular chain and further repolymerize to a molecular chain fitting the requirement, and using a vacuum unit to remove the organic impurity, moisture and dirt for increasing the intrinsic viscosity of the semi-finished pellet to make intrinsic viscosity be higher than 0.65 dl/g; by processing with the reactor tank, the present invention increases intrinsic viscosity of recycling polyester waste by changing the I.V. of the RPET and the structure of the molecular chain, enhancing the quality of the RPET for increasing applicability and economic benefits of RPET.

The present invention refers to a process for the production of an additive composition intended to be mixed into a bituminous conglomerate for road paving. The process includes grinding a mixed waste material containing a mixture of plastic materials, which includes at least one plastic material based on a polyolefin thermoplastic material, washing the ground mixed waste material and separating a portion of low-density material which contains the plastic material based on a polyolefin thermoplastic polymer from the mixed waste material. This portion of low-density material is then ground to a particle size between 10 mm and 20 mm; and then mixed with a material based on polyvinyl butyral. The resultant mixture is further ground to produce an additive composition having a particle size between 4 mm and 6 mm.

A modular system and process are described for recycling textile waste of various compositions into new ready to use fibers for garment manufacturing or other uses.

Processes are disclosed for recovering stiff poly(vinyl butyral) from a plasticized poly(vinyl butyral) multilayer sheet containing the stiff poly(vinyl butyral) and soft poly(vinyl butyral). The processes include grinding the plasticized poly(vinyl butyral) multilayer sheet to obtain a granulate; adding additional plasticizer to the granulate to remove at least a portion of the soft poly(vinyl butyral); and physically separating the granulate from the resulting solution.

Provided is a method of recycling an additively manufactured object into a reusable thermoplastic polymer, which method in some embodiments may include: (a) providing at least one additively manufactured object produced by stereolithography from a dual cure resin, the object comprising (i) a light polymerized polymer, and (ii) a heat polymerized polymer intermixed with said light polymerized polymer; (b) comminuting the object to produce a particulate material therefrom; (c) contacting the particulate material to a polar, aprotic solvent for a time and at a temperature sufficient to extract the heat polymerized polymer from the particulate material into said solvent, leaving residual particulate material comprising said light polymerized polymer in solid form; (d) separating the residual particulate material from said solvent; and then (e) separating the heat polymerized polymer from said solvent to provide a reusable thermoplastic polymer material in solid form.

The present invention comprises a method of shredding treated medical waste, cleaning it of all traces of biological gunk, and sorting it into separate components for recycling. To clean biological gunk from materials, all materials must be first shredded into small parts to expose the interior. The cleaning is performed by submerging the gunk coated materials into a caustic solution that breaks down and dissolves the gunk off of the materials. The caustic solution may comprise sodium hydroxide, potassium hydroxide, or a similar chemical, which is highly effective in producing a corrosive chemical that can break down blood, bone marrow, urine, unused medication, food waste, organs, tissues and any other biologic materials. After all of the biological material is removed from the cleaned materials, they are sorted into component materials, such as plastics, metals, rubbers, glass, etc.

The disclosure provides a process for the recovery of component materials from composite products, the process including: a) providing a composite product that comprises a plurality of component materials, the component materials including uncured rubber and reinforcement material selected from fabric and/or metal; b) preparing one or more standardised sheets of composite product, wherein each standardised sheet has a maximum thickness of 125 mm or less; and c) jetting pressurised water onto one or more surface of the standardised sheets, whereby the water is at a pressure of up to 500 bar, thereby stripping the uncured rubber from the reinforcement material and resulting in a mixture of uncured rubber fabric and reinforcement material.

Disclosed herein is a roof cover board and a method of manufacturing an improved cover board product. The method includes receiving waste materials or first use materials, the waste materials or first use materials containing a mixture of cellulose, plastic and other materials; separating the cellulose and the plastic from the mixture; shredding the separated cellulose using a first shredder into a stream of cellulose and shredding the separated plastic using a second shredder into a stream of plastic; selecting a cellulose to plastic ratio from a plurality of cellulose to plastic ratios; metering shredded cellulose from the stream of cellulose and shredded plastic from the stream of plastic according to the selected cellulose to plastic ratio; mixing the metered shredded cellulose and plastic; forming said mixture into a mat; and consolidating the mat into a finished good using heat and pressure.