A separation device includes a first shredding unit, a first beating unit, and a first separation unit. The first shredding unit shreds a disposable diaper (processing target) containing a plastic (first material) and a water-absorbent polymer (second material) adhering to the plastic. The first beating unit beats the disposable diaper shredded by the first shredding unit with a first beating member, thereby promoting dissociation of the water-absorbent polymer from the plastic. The first separation unit rotates a first tubular portion in a state in which the disposable diaper beaten by the first beating unit is accommodated therein, thereby separating the water-absorbent polymer passing through first holes from the disposable diaper.

A process for recovery and devulcanization of vulcanized rubber is provided. The process takes place in a plant including a mill for grinding vulcanized rubber into particles, a twin-screw extruder provided with a device for forced feeding of vulcanized rubber particles and a thermostatting device, a single-screw extruder arranged downstream of the twin-screw extruder and equipped with a thermostatting device, a filter for devulcanized rubber and an extrusion die shaped like a slot, from the which devulcanized rubber comes out in the form of a strip or sheet, and a cooling device for the devulcanized rubber strip or sheet. The twin-screw extruder operates at a temperature between 35 and 450° C., with a rotation speed of the screws between 15 and 600 rpm, and a torque density between 11 and 18 Nm/cm.sup.3, so that the shear rate remains constant for the entire longitudinal extension of the twin-screw extruder.

The present disclosure provides methods and systems for manufacturing a composite component. User input indicative of component parameters for fabrication of the composite component are obtained, the component parameters including a prepreg offcut material parameter indicative of a prepreg offcut to be recycled. At least one staging parameter for a staging process of the prepreg offcut is determined based on the prepreg offcut material parameter. A compression moulding process map for the fabrication is determined based on the component parameters A manufacturing parameters for the fabrication is determined based on the compression moulding process map. At least one signal indicative of the staging parameters, the compression moulding process map, and the manufacturing parameters is issued.

A method for processing material that contains cement rock may involve comminuting the material in a first comminuting device, feeding the material to a reactor in which the material is mixed with an aqueous liquid and CO.sub.2 and in which a mixing movement of the material is generated, and removing the material from the reactor and subdividing the material into at least two fractions by way of a classifying device. The temperature and the pressure in the reactor are maintained such that the pressure exceeds atmospheric pressure and such that the temperature is greater than 100° C. The method may further involve removing a withdrawal stream of the aqueous liquid from the reactor and separating and discharging suspended particles of the material from the withdrawal stream.

Disclosed are systems and methods for refractory recycling that result in refined individual refractory components from a network of aggregate refractory components based on a fragmentation process. In one embodiment, a network of refractory aggregates is crushed and deposited into a refiner machine. The refiner machine includes a blast chamber that houses a projecting mechanism. The deposited aggregate material is propelled from the projecting mechanism at a critical velocity. Upon impact with an inner lining of material within the blast chamber, contaminant particles can fracture apart from the deposited aggregate material, leaving a refined individual refractory component.

The present invention is based upon the discovery that the level of adhesion between steel reinforcing elements and rubber products, such as conveyor belts, in which they are embedded can be significantly reduced by heating the steel reinforcing elements by induction heating to break down the level of bonding between the steel reinforcing elements and the rubber in the article. The present invention more specifically discloses a method for recovering steel reinforcements from a conveyor belt carcass having steel reinforcements which are bonded to the carcass of the conveyor belt, said method comprising (1) heating the steel reinforcements in the conveyor belt by induction heating to a temperature which is sufficient to substantially breakdown bonding between the steel reinforcements and the carcass of the conveyor belt and (2) applying a mechanical force to the steel reinforcements which is sufficient to separate the steel reinforcements from the conveyor belt carcass.

The invention relates to a method and to an assembly for recycling plastic materials, comprising the following processing steps: a) reprocessing the raw material, wherein the material, if necessary, is comminuted and brought into a fluid-like form and heated and permanently mixed, while preserving the lumpiness and pourability thereof, and optionally the viscosity thereof is increased and/or it is degassed, softened, dried and/or crystallized; b) melting the reprocessed material, at least so much that filtration is possible; c) filtering the melt in order to remove impurities; d) homogenizing the filtered melt; e) degassing the homogenized melt; and f) discharging and/or subsequently processing the melt, such as by granulation, blown film processing, with said processing steps being carried out consecutively in the order listed.

Processing waste materials to recover valuable metals, such as copper, from the materials. Waste materials are further refined to concentrate the metallic material after the waste materials are initially processed. Processes include employing air separation and screening. Processes also include employing a dynamic sensor and a vacuum pressure separator to separate metals from other materials. A central processing facility may process metal concentrate from multiple concentration facilities.

A plant (1) and method for recovering plastic materials of post-consumption materials, such as vehicle bumpers and tanks, in the plant, downstream of the volumetric reduction grinder (2), there is provided an intermediate grinder (6) and the washing vat (9) and the centrifuge (12) additionally being arranged upstream of the windmill/granulator (14), while in the method, an intermediate grinding step is arranged upstream of the grinding/granulation step and a subsequent washing step and separation in the vat of the parts of foreign materials through the difference of specific weight, including ferrous, non-ferrous materials and alloys thereof, of the material made of intermediate size, before the grinding/granulation step through windmill/granulator, wherein the washing and centrifugation water is subjected to a continuous purification cycle. In order to increase the productivity of the plant and reducing the maintenance times, the conveying elements for transporting the material are provided mobile, mounted on swivel wheels.

The subject of the present invention is a method for processing electrical and electronic components in order to recover valuable materials, such as the metals contained in printed circuit boards. According to this method, the electrical and electronic components are pre-shredded mechanically and then mixed with a liquid before they undergo wet milling (5).