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WO/2003/087215A1 |
Techniques for creating recycled plastic materials from waste plastic materials are described. A recycled plastic material contains at least a primary polymer, a secondary polymer, and residual additives. Predetermined properties of the ...
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WO/2003/086733A1 |
Multistep recycling processes for preparing recycled plastic materials. The processes feature a sequence of operations selected from the group consisting of preprocessing operations, size reduction operations, gravity concentration opera...
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WO/2003/084667A1 |
The electrostatic classifier and separator is supported by a housing and includes a corona classifier section for classifying particulate materials according to size. Corona means supplies mobile ions for bombarding particulate materials...
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WO2003027536A9 |
The application discloses a belt formed of first and second portions of thermoplastic sheet including, respectively, first and second pluralities of tabs spaced apart so as to define first and second pluralities of openings along corresp...
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WO/2003/041840A1 |
The basis of the pollen cleaning method is that the contaminated pollen (6) is sucked by airflow carrying the pollen to the conical part (16) of the separator (3) made of insulating material where pure pollen particles fall through the s...
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WO/2003/039754A1 |
The invention relates to a method and device for separating a mixture (1), made of particles of a first particle type (2) and a second particle type (3), especially aleurone particles and shell particles made of comminuted bran, said par...
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WO/2002/076620A1 |
An apparatus for electrostatically separating conductive particles and insulative particles which shows a shortening in separating time and in separating performance comprises an approximately flat bottom electrode (26) mounted below, an...
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WO/2002/034403A1 |
A mechanical device (5) for cleaning the surface of a roll-type electrostatic separator (8) that does not use a conventional fibrous brushing system. A novel feature of this device is the autogenous nature of the mechanism. This approach...
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WO/2002/034404A1 |
A composite separator for separating copper wires A2 and plastic pieces A1 from a mixture A comprising a drum electrode (4), needle-like electrodes (5), and a planar electrode (9). A plurality of needle-like electrodes (5) are arranged t...
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WO/2002/034400A1 |
The invention relates to a unit and method for the treatment of shredder residues from metal-containing waste products, in particular from vehicle chassis, whereby the shredder residues are separated into a shredder light fraction (SLF) ...
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WO/2002/028537A1 |
An electrostatic device (1) for the separation of particulate feedstock materials into two or more constituent streams. The device (1) includes at least one 'insulated' electrode (12), which is made up of an electrically conductive eleme...
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WO/2002/020164A1 |
A first electrostatic separator and a second electrostatic separator are vertically arranged in lower part of a triboelectrification device. The electrostatic separators each include a drum electrode and an opposing electrode between whi...
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WO/2002/009882A1 |
Apparatus for the electrostatic separation of a mixture of particles that exhibit difference in electrical conductivity, comprising: a conductive surface to which conducting particles lose their charge; feeding means for feeding the mixt...
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WO/2002/000353A1 |
This invention relates to an apparatus and method for electrostatically separating particles having different electrostatic properties. The apparatus involves two thin box-shaped electrodes facing each other as mirror-images and charged ...
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WO/2001/052998A1 |
An apparatus for tribocharging particles of electrically insulating materials has a rotatable drum (1), made of a metallic material, for containing the particles. The drum has an inlet (11), for charging material, and an outlet (13), for...
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WO2000054885A9 |
This invention relates to improving the separation efficiency in a triboelectric separator (44) by adding media (60) against which the components of the mixture will charge. As a result, random charging between the components of the mixt...
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WO/2001/036101A2 |
The invention relates to a method for the separation of a mixture of plastics, comprising several different types of plastic, by means of an electrical contact pre-treatment, which permits an increase in the ecological and economical eff...
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WO/2001/028700A1 |
A flow cytometry apparatus (1) and methods to process information incident to particles or cells entrained in a sheath fluid stream allowing assessment, differentiation, assignment, and separation of such particles or cells even at high ...
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WO/2001/021318A1 |
A feed tray (22) for guiding tribo electrified plastic pieces (2) to a drum electrode (6) is provided with a vibrator (23), thereby making it possible to vibrate the plastic pieces (2) being moved on the feed tray (22) to disentangle the...
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WO/2001/010559A1 |
A method of separating particulate materials (5) of different properties has been developed. It consists of feeding a mixture of dry, powdered materials (5) to one end of the surface of a planar electrode (2), which is vibrating (7) to m...
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WO/2000/076669A1 |
When different kinds of plastic chips, where the difference in quantity among the kinds is great, are agitated for triboelectrification, the plastic chips are given sufficient charge or polarity for separation to increase the yield of re...
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WO/2000/074855A1 |
An apparatus is provided for accurately sorting pulverized plastic chips of different kinds by electrostatic selection. The apparatus comprises a sorter (40) for sorting plastic chips according to size, a triboelectrification device (17)...
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WO/2000/061292A1 |
An apparatus and method for sorting particles. The apparatus includes a magnet mechanism (12) for separating particles with a magnetic force. The apparatus includes an electric mechanism including an electrode (22) disposed adjacent to t...
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WO2000023193A9 |
The invention relates to a particle separator and methods for separating the particles of a mixture. The apparatus of the invention employs two field elements to create a field in the space between the field elements. The surface contact...
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WO/2000/056462A1 |
A particle separator for the separation of particulate mixtures comprising species that exhibit difference in electrical conductivity, comprising: a conductive surface including a separation zone over which said species move at a predete...
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WO/2000/029119A1 |
When different kinds of plastic chips, where the difference in quantity among the kinds is great, are agitated for triboelectrification, the plastic chips are not given sufficient charge or polarity, resulting in the difficultly sorting ...
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WO/2000/027534A1 |
The relation between the voltage Vp (kV) applied to separation electrodes and the distance L (cm) between the separation electrodes is defined by Vp/L$m(F)10. Even if a spark (20) is produced between the electrodes, namely, between an el...
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WO/2000/027536A1 |
Plastic chips (2) are supplied in batches of quantity W1 to an electrification device (4) by a conveyer (3) and stirred for a predetermined time T in the electrification device (4). The electrified chips are all discharged and carried co...
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WO/2000/027535A1 |
A triboelectrification device (30) that causes electrification by stirring a plurality of kinds of pulverized plastic pieces (1). A friction auxiliary material (52) is put in a stirring vessel (31), the particles of the friction auxiliar...
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WO/2000/006235A1 |
The invention discloses a method and a device for classification and, if required, electrostatic charging of a resulting separated decomposed powder preferably in the form of a substance intended for inhalation purposes. The classificati...
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WO/1999/043437A1 |
The invention concerns a method and apparatus for separating mineral particles according to their dielectric and/or electrophysical properties. In one practical example, rutile particles can be separated from zircon particles. In the met...
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WO/1999/042216A1 |
Bead transporter chucks for selective pick up and discharging of polymer beads for chemical synthesis or analysis, whereby repulsive field conductors are arranged around bead electrodes used for selectively attracting and retaining beads...
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WO/1999/030826A1 |
A method and apparatus for separating a mixture of particles carries out a first separation by using a separator (11, 18, 21) to separate those particles which lose an electrostatic charge relatively rapidly from those particles which lo...
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WO/1998/036844A1 |
Apparatus and method for separating carbon particles from flyash include one of increasing a relative humidity of the flyash or decreasing the relative humidity of the flyash to within an optimum humidity range, and introducing the flyas...
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WO/1998/031469A1 |
In a belt separator system for separating constituents of a mixture of particles, the belt having a leading deflective surface at an acute angle to the direction of belt travel so as to impart a transverse momentum component to the const...
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WO/1998/028080A1 |
A device has a cylinder (41) upon which the charged particle mixture is applied. An inner electrode (41) is arranged inside the cylinder (41) along an angular area next to the inner wall of the cylinder. An outer electrode (48) is provid...
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WO/1998/027139A1 |
The present invention relates to a method of triboelectric separation of organic polymers and salts, specially organic polymers containing sulfur, such as polyarylene sulfides and a halogenide or a carboxylate of alkaline metals, alkalin...
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WO/1998/024356A1 |
A method for controlling and removing dust and other fine particles in a material comprising i) electrostatically charging carrier particles in powder form to give the carrier particles a minimum charge to mass ratio of +/- 1x10?-4�C/k...
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WO/1997/020633A1 |
An apparatus for separating different components of a mixture of material includes a separation chamber having a structure definin g confronting electrode surfaces (10, 12) having a gap (15) between the confronting electrode surfaces and...
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WO/1997/009398A2 |
The invention relates to electrostatic separation of coal from toxic and pyritic elements and ash compounds. More particularly this invention relates to separation of coal from refuse material by imparting opposite electrostatic charges ...
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WO/1996/033809A1 |
A belt-type counter-current separator for separating a mixture of particles, including conductive particles, includes a voltage gradient assembly having a plurality of conductive elements inter-disposed with a plurality of dielectric ele...
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WO/1996/027635A1 |
An improved belt comprised of a host polymer and an additive for use in a belt separation system. The belt is formed using an extrusion process. The host polymer and additive are selected to yield a belt with tailored chemical and physic...
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WO/1996/020819A1 |
The invention relates to a process and a plant for processing mixed plastics, especially such from domestic refuse. In the process of the invention, the material to be prepared is milled in a milling stage and compounded in an agglomerat...
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WO/1995/033571A1 |
A method and apparatus for separation of carbonaceous particles from fly ash utilises an electrostatic separator having a plurality of separation zones (11) arranged to define a downward serpentine pathway for particulate material, the s...
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WO/1994/004634A1 |
A fuel coal processing system is provided which consists of a centrifugal type pulverizer which consists of a pair of opposed multicup concentric ring rotors (5) and (6), a coal purifier (12) which consists of an annular ring nozzle surr...
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WO/1993/019848A1 |
The present invention pertains to a method and apparatus for mixing, comminuting and/or separating materials, particularly recyclable materials. The invention provides at least one operating chamber (5) within which a high pressure vorte...
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WO/1993/006934A1 |
An apparatus and associated method of separating mixed fragments of different plastic materials (2), in which the material (2) to be separated are capable of carrying different electrostatic charges. The charges are induced in the mixed ...
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WO/1993/003848A1 |
The invention calls for mixtures of plastics materials to be split up into their individual components by a method which combines separation according to density and electrostatic separation, a special surface-treatment operation being c...
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WO/1993/003851A1 |
In the method disclosed, plastics materials, in particular materials of similar density such as poly(ethylene terephthalate) and poly(vinyl chloride), are separated using electrostatic techniques, the mixture being subjected to heat trea...
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WO/1993/003852A1 |
The invention calls for mixtures of plastics materials, in particular materials of similar density such as polyethylene and polypropylene, to be separated using electrostatic techniques, the mixture being subjected to a surface-treatment...
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