Abstract: A method is for recycling a roll of artificial turf. The method includes the steps of processing the roll of artificial turf to yield a mixture of a quantity of infill and a quantity of synthetic fibers, the quantity of infill having rubber, sand, and debris, passing the mixture through one or more screens to extract a percentage of the quantity of synthetic fibers from the mixture and yield a first remaining mixture, and substantially separating the first remaining mixture into pieces of rubber of a first volume, pieces of rubber of a second volume greater than the first volume, sand, debris, and the remaining percentage of the quantity of synthetic fibers.

Abstract: A rubber composition is based on at least an elastomer, a reinforcing filler and a crosslinking system and a crumb rubber, said crumb having a particle size distribution such that it comprises less than 35% by weight of particles having a size of less than 50 ?m and less than 30% by weight of particles having a size of greater than 200 ?m.

Abstract: Methods and apparatus for treating a mixture of fiber and granules are provided. The method includes passing the mixture through a friction zone comprising a conveyor belt that moves mixture and a friction device comprising a stationary surface in contact with a surface of the mixture. The method includes applying pressure to the mixture with the friction device to generate friction such that at least 5% of the fiber in the mixture is rotated. The method includes forming an agglomerate that is larger than the granules in the mixture.

Abstract: The method and systems efficiently extract recyclable materials from a mixed solid waste stream. The methods and systems use sizing, density and dimensional separation to produce intermediate waste streams that are enriched in particular recyclable materials. The recyclable materials can then be efficiently sorted from the individual intermediate streams using mechanized sorting equipment.

Abstract: A method separates a rubber material and a steel chord material in tires, tire blanks and carcasses from one another in a simple manner. In the method, rubberized steel chord is fed to a separating device. Then a powdered separating material is fed to the separating device. The steel chord and the rubber are separated by way of interactions between rotating tools and the separating material in the separating device. The separated rubber particles are encapsulated by the separating material. The rubber particles are discharged from an opening in the separating device.

Abstract: The invention provides for methods, systems, and devices for processing rubber materials including rubber from tires, tubes, shoe soles, or any other rubber containing product. Characteristics of the rubber materials, such as chemical composition and/or product manufacturer, model, and manufacture date, can be identified. Identification can be performed by personnel, can be automated, or can be a combination thereof. The characteristics of the rubber material can be used to sort the rubber product. Rubber materials suitable for a particular end product can be selected for further processing, which can include size reduction, material separation, chemical and physical processes, devulcanization, or a combination thereof. Processed rubber materials can be stored or delivered to a user or manufacturing site with product specifications.

Abstract: A recycling method of used tyres is disclosed, which comprises grinding of tyres to obtain tyre pieces with approximate maximum dimensions of 100×80 mm, granulating of ground tyre pieces to obtain filaments of harmonic steel and granules containing textile fibres with 1-16 mm granulometry, removal of steel filaments using the attraction of a magnetic field, and refining of granules containing textile fibre, in such a way to separate textile fibre from rubber granules with 1-3 mm granulometry for introduction on the market to mould rubber-based materials.

Abstract: A process for obtaining rubber pellets from used tires is described, the process comprises a series of steps which take account of the structure of a tire, and among which are mainly: collecting used tires having a tread and lateral faces, in which the tread includes an inner layer and an outer layer; and each lateral face includes a flange at the inner edge thereof; separating the tread from the lateral faces; cutting the tread transversely through the inner layer and the outer layer in order to form a strip from the tread; cutting the strip in order to form pellets therefrom; detaching the flange from the separated lateral faces; and cutting the flange-less lateral faces in order to form pellets therefrom.

Abstract: The invention provides for methods, systems, and devices for processing rubber materials including rubber from tires, tubes, shoe soles, or any other rubber containing product. Characteristics of the rubber materials, such as chemical composition and/or product manufacturer, model, and manufacture date, can be identified. Identification can be performed by personnel, can be automated, or can be a combination thereof. The characteristics of the rubber material can be used to sort the rubber product. Rubber materials suitable for a particular end product can be selected for further processing, which can include size reduction, material separation, chemical and physical processes, devulcanization, or a combination thereof. Processed rubber materials can be stored or delivered to a user or manufacturing site with product specifications.

Abstract: A recycling method of used tyres is disclosed, which comprises grinding of tyres to obtain tyre pieces with approximate maximum dimensions of 100×80 mm, granulating of ground tyre pieces to obtain filaments of harmonic steel and granules containing textile fibres with 1-16 mm granulometry, removal of steel filaments using the attraction of a magnetic field, and refining of granules containing textile fibre, in such a way to separate textile fibre from rubber granules with 1-3 mm granulometry for introduction on the market to mould rubber-based materials.

Abstract: A process for producing a rubber powder from a vulcanized rubber material by the steps of: a) feeding a grinding device with the vulcanized rubber material; b) contacting the vulcanized rubber material with at least one liquid coolant; c) introducing at least one grinding aid additive into the grinding device; d) operating the grinding device so as to grind the vulcanized rubber material to form a rubber powder, and e) discharging the rubber powder from the extruder.

Abstract: A process of recovering rubber from rubber-bearing plant materials in non-aqueous conditions by first drying the rubber-bearing plant material and then mechanically grinding the rubber-bearing plant material to produce rubber threads and finely ground root tissue. Following the mechanical grinding, rubber threads are separated from finely ground plant root tissue by passing the ground plant material over a dry vibrating mesh screen and blowing away the plant root skins to leave rubber threads. The rubber threads may further be purified by stirring the rubber threads in warm water. Then the mixture is settled and the rubber threads are skimmed off. Optimal purification may be obtained by stirring, settling, and skimming off the rubber threads. Another optimal purification can be achieved by stirring continuously in the flowing warm water.

Abstract: A process and apparatus for manufacturing crumb and powder rubber. The process and apparatus include a cooling step, effectuated by cooling means, wherein the temperature of cryogenically cooled preprocessed rubber particles is controlled. The process and apparatus also include a grinding step, effectuated by grinding means, in which the degree of grinding, and thus the product particle size range, is controlled.

Abstract: A transportable system for separating materials in a waste stream. An arrangement of separation and grinding devices is mounted on a transportable platform. The devices are configured and arranged to produce three or more product streams from a plastic-rich feed mixture. One of the product streams is a coarse heavy stream, one stream is a ground plastic-rich product stream, and one stream is a ground light material stream. The system can be transported to a waste-goods location, operated to separate waste-goods, and relocated a new location.

Abstract: Comminuted carpet pieces are fed to a first stirred tank together with an aqueous solution containing separating salt, to form a first suspension, which is fed to a first mechanical separating stage. A first high-solids phase, a second high-solids phase containing polymer fiber material, and a liquid phase are obtained therefrom. The second high-solids phase is mixed with a water-containing separation solution in a stirred tank, to give a second suspension, which is fed to a second mechanical separating stage. A third high-solids phase, a polymer fiber material-rich phase and a liquid phase are withdrawn therefrom. An acid which is stronger than H2CO3 is introduced into the stirred tank together with the water-containing separation solution, and the pH of the liquid in the stirred tank is adjusted to 2–6.

Abstract: A process and apparatus for comminuting rubber particles. In this process and apparatus rubber particles at a temperature below the glass transition temperature are introduced into a comminuting device concurrent with the introduction of an inert gas coolant at a temperature below about ?75° F. The rubber particles are comminuted in the comminuting device at a rate proportional to the average particle size of the introduced rubber particles to an average size within the range of crumb or powder rubber particles.

Abstract: A process and apparatus for making crumb and powder rubber from preprocessed rubber particles. The process and apparatus provides an energy efficient operation wherein the preprocessed rubber particles are dried, precooled, frozen, comminuted and sized using a closed cryogenic fluid cycle.

Abstract: The invention concerns a method for treating tyres, belts, inflatable boats, boots and other manufactured articles containing rubber, polymers and reinforcing elements, which is a close circuit system consisting in immersing the waste materials to be treated in a hot alkaline hydroxide bath, followed by neutralization of the resulting materials with a weak mineral acid solution for industrial re-use of said materials.

Abstract: A rubber grinding machine and method is provided for ambient temperature grinding of rubber material to form finely ground rubber particles. The rubber grinding machine includes a feed tube, a grinding module, a conveyor, a screening module and a vacuum system. Rubber material is placed in the feed tube which advances the rubber material into the grinding module using a plunger or auger. The grinding module includes a grinding wheel which grinds the rubber material into rubber particles. The grinding wheel is surrounded by a shroud which includes a water-cooled cooling jacket. The water is circulated through the cooling jacket to cool the shroud and its interior. Rubber particles ground by the grinding wheel fall through the bottom of the shroud onto a conveyor which deposits the rubber particles onto the screen module. The screen module includes at least one screen for separating the rubber particles by size.

Abstract: The present invention relates to a method of reducing particle size by the use of a supercritical fluid, generally carbon dioxide. The material is swollen by the supercritical carbon dioxide at a high pressure. After the material has been allowed to swell under a high pressure, the pressure is rapidly dropped. When the external pressure is rapidly dropped, the material explodes as the supercritical gas absorbed into the material rapidly expands outward.

Abstract: An apparatus and a method for sorting out shredder waste allows for lower sorting cost and higher sorting accuracy to be achieved.

Abstract: An apparatus and method are described for creating rubber crumb from rubber vehicle tires. The method provides for the soaking of a vehicle tire in a solvent, removal of the tire from the solvent, movement of the tire by a conveyor to an apparatus that applies physical pressure to the tire, while situated upon a circular screen which allows the physical pressure applied to fragment the tire into its component parts, pressing the rubber components through the screen with any remaining liquid and allowing the non rubber components to be removed for recycling purposes or to be discarded. The apparatus applies physical pressure to separate the rubber and non rubber components from one another.

Abstract: The invention relates to a process for inhibiting agglutination in a upright duct when particles are introduced, where at least some parts of the walls of the upright duct are wetted with a film of liquid, and also to an apparatus for carrying out the process, embracing an anterior panel (10), at least part of which is composed of a porous sheet and which has been arranged in front of at least part of the walls of the upright duct (2a, 2b) and which forms with these a chamber (11) which can be filled with a liquid, where the apparatus also embraces a feed (9), and/or to tubes (5) which can be inserted, freely suspended, into an upright duct and can be filled with a liquid, and which have been arranged along the walls of the upright duct (2a, 2b) and have a feed (6) and have discharge openings (7).

Abstract: A method for separating non-fibrous particulates from fibers in the substantial absence of water is disclosed. A pulverized mixture of non-fibrous particulates and fibers is introduced into a separation zone containing a plurality of revolving spiked cylinders. Revolving spikes of the respective revolving spiked cylinders contact and separate fibers from the pulverized mixture to produce non-fibrous particulates. The separated fibers have residual non-fibrous particulates which may be removed by the revolving spikes of one revolving spiked cylinders throwing or impelling the separated fibers against and into the revolving spikes of a contiguous revolving spiked cylinder. When the separated fibers impact the spikes of the contiguous revolving spiked cylinder, residual non-fibrous particulates loosen and separate from the removed fibers. The produced non-fibrous particulates have residual polyester fibers which may be removed and reclaimed.

Abstract: A process, and associated apparatus, that separates the economic components of scrapped rubber tires while isolating and removing certain levels of contamination associated with these tires. The separation of the scrap tires contaminants is accomplished by shredding, washing, and rasping the tire product. The continual laboratory testing of the waste wash water and removal of the contaminates and particulates will produce an end-product of 3 to 100 mesh/crumb which will be virtually without contamination. The quality of the end-product is further enhanced by the associated quality apparatus that removes the steel and fiber products in addition to any contaminants.

Abstract: The present invention provides a method and an apparatus for crushing and pulverizing tire chips roughly crushed to a size of 10 cm in length by completely separating to rubber components from iron components in a single crushing process. It is intended to extensively simplify the process to produce rubber powder from waste tires and to promote material recycling of the used tires. The method comprises the steps of catching the tire chips between monoaxial rotary blades 3 rotated within a casing 2 and fixed blades 4 and 4 fixed and arranged at opposed positions and maintaining a gap slightly larger than diameter of a piano wire 9 contained in the tires, rupturing only the rubber components without cutting piano wires and steel fibers, tearing and withdrawing rubber components by rotation of the rotary blade 3, and crushing while separating rubber components from iron components.

Abstract: An apparatus and method are described for creating rubber crumb from rubber vehicle tires. The method provides for the soaking of a vehicle tire in a solvent, removal of the tire from the solvent, movement of the tire by a conveyor to an apparatus that applies physical pressure to the tire, while situated upon a circular screen which allows the physical pressure applied to fragment the tire into its component parts, pressing the rubber components through the screen with any remaining liquid and allowing the non rubber components to be removed for recycling purposes or to be discarded. The apparatus applies physical pressure to separate the rubber and non rubber components from one another.

Abstract: Apparatus and method for processing used vehicle tires that separates the steel metal from the rubber and other non-metallic materials for recycling. The tire is rotated at sufficient speed to force the materials outwardly by centrifugal force. Heated blades move centripetally to melt and cut through the non-metallic materials, dividing the tire into at least two arcs that are held together by the steel reinforcement that is not easily cut through. Electric heating apparatus heats the steel more than the rubber so that the forces binding the rubber are released, enabling the rubber and other non-metallic materials to be flung outwardly away from the steel. The steel is then collected separately. The differential heating apparatus may be inductive or resistive.