序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
161 Differential grinding EP92306231.9 1992-07-07 EP0577889A1 1994-01-12 Lofthouse, Charles Hugh; Moyle, Gary

There is described a process for the isolation of a fine mineral product from a low-grade source of the said mineral, the process comprising the following steps:

  • (i) forming a suspension in water of the said mineral source;
  • (ii) subjecting the suspension to grinding with a grinding medium having a specific gravity not greater than 2.0, the amount of energy dissipated in the suspension during the grinding operation being not greater than 50kW.hrs per tonne of the dry mineral source; and
  • (iii) isolating from the ground suspension a fine fraction of particles comprising an increased amount of the said mineral when compared with the same fraction isolated from the unground mineral source.

162 System for recovery of salvageable ferrous and non-ferrous metal components from incinerated waste materials EP86307640.2 1986-10-03 EP0220853B1 1993-12-22 Keller, Samuel
163 Method for the beneficiation of oxidized coal and the beneficiated coal product EP85105036.9 1985-04-25 EP0166897A3 1989-03-08 McGarry, Phillip E.; Herman, David E.; Treskot, Robert A.; Fistner, David C., Sr.

A process for modifying the surface of oxidized coal and the beneficiated coal product resulting herefrom, said process comprising subjecting coal having oxidized surfaces to high shear agitation in water followed by desliming the resultant aqueous coal mixture.

164 Verfahren zur Wiederverwertung von mit Etiketten beklebten Kunststoffteilen EP81105505.2 1981-07-14 EP0044507B1 1983-06-29 Tallafus, Ottmar
165 Method and apparatus for recovering thermoplastic from coated fabric scrap EP82105792.4 1982-06-29 EP0068502A2 1983-01-05 Luff, Bruce Allen; Kazarnowicz, Michael Casimer

The invention relates to cryogenically cooling and impacting thermoplastic coated fabric to liberate the thermoplastic from the fabric and screening the resulting thermoplastic fabric mixture in a multi-deck vibratory screener into a coarse fabric segment, a thermoplastic fines segment and a third segment. The third segment is separated into a fabric fines segment and a coarse thermoplastic segment in, for example, an air classifier. The recovered thermoplastic coarse and fines segments can be reused in all applications for regrind thermoplastic material.

166 METHOD FOR SEPARATING UNDESIRED COMPONENTS FROM COAL BY AN EXPLOSION TYPE COMMINUTION PROCESS EP81900897.0 1981-03-04 EP0047310A1 1982-03-17 MASSEY, Lester G.; BRABETS, Robert I.; ABEL, William A.
Procede de fragmentation d'un hydrocarbure solide poreux ou permeable aux fluides, tels que le charbon, contenant un melange de matieres minerales et d'hydrocarbures, fragmentation resultant en une fraction enrichie en matiere minerale et une autre fraction enrichie en hydrocarbures. Selon ce procede on fragmente la matiere solide pour convertir celle-ci, au sein du charbon, en particules discretes presentant un diametre volumetrique moyen inferieur a environ cinq microns sans modifier sensiblement les dimensions des matieres minerales presentes dans le charbon. Cette fragmentation permet de separer les particules d'hydrocarbures des particules minerales pour donner une fraction hydrocarbure presentant une concentration en substances minerales inferieurs a celle du materiau d'origine non fragmente, et une fraction minerale presentant une concentration en substances minerales superieures a celles du materiau original non fragmente. Selon une methode preferee de fragmentation de l'hydrocarbure solide poreux ou permeable aux fluides, par exemple le charbon, on forme d'abord une boue de charbon et d'un fluide tel que l'eau ou le methanol. Cette boue est ensuite chauffee et mise sous pression a des temperatures et sous des pressions superieures a la temperature et a la pression critiques du fluide considere. La boue ainsi obtenue qui est a une temperature et sous une pression supercritiques est ensuite conduite vers une zone de detente maintenue a une pression plus basse, de preference a la pression ambiante, afin d'effectuer la fragmentation du solide grace a l'expansion extremement rapide ou a l'explosion du fluide introduit dans le charbon au cours du chauffage et de la mise sous pression de la boue. Les conditions supercritiques utilisees produisent un produit fragmente comprenant un melange de particules d'hydrocarbure discretes fragmentees presentant des dimensions moyennes volumetriques equivalentes a moins d'environ cinq microns en diametre ainsi que des particules non organiques et minerales discretes
167 Method and apparatus for separating paper and fibres from portions of polyethylene film material EP78300612.5 1978-11-08 EP0002122A1 1979-05-30 Froats, Blaine Creston

A method and apparatus are disclosed for separating paper fibres from portions of polyethylene film. Paper laminated with polyethylene film is used in packaging, particularly for milk and cream. The resultant scrap material has not been hitherto successfully separated into paper and polyethylene, and the contamination of polyethylene with paper renders such material useless for recycling.

In the use of the disclosed apparatus, the polyethylene film contaminated with paper fibres is subjected to treatment that converts the paper fibres into substantially uniform balls which are separated by gravity by being entrained in a stream of air with the polyethylene film pieces and impacted against a plurality of impact surfaces and the relatively light polyethylene film being separated from the relatively heavier damp paper fibres by means of a cascade of separators relying upon gravity separation of the heavier components. Provision is made to remove the damp paper fibre balls and recover the polyethylene film from the apparatus.

The apparatus disclosed consists of a shredder (10) for receiving and shredding batches of damp, paper fibre contaminated polyethylene film portions, a blower (15) arranged to receive the material from the shredder (10) which consists of small pieces of polyethylene film and balled paper fibre, and blow it into a first fluffer (17) containing a plurality of impact surfaces (19 to 27) to effect further separation, a first plurality of separators (29) in cascade arranged to separate the paper fibre balls from the polyethyline film by differential air entrainment and gravity separation through screens (32), the balls falling through into collection chambers (33), a further fluffer (37) and a further plurality of separators (39) in cascade, leading to a drier (41) and, possibly, an extruder (42) for the separated and collected polyethylene film portions.

168 Mechanical processing of oil sands US15152351 2016-05-11 US10125320B2 2018-11-13 Thomas Duma
A method of extracting bitumen from oil sands having a transition temperature at which the oil sands solidify includes forming formable oil sands into pellets and cooling at least a surface of the pellets sufficiently to prevent the pellets from aggregating; cooling the pellets to below the transition temperature; fracturing the pellets to release the bitumen from the oil sands while maintaining the temperature of the pellets below the transition temperature; and separating the bitumen from the oil sands in a separator.
169 TRANSPORTABLE MODULAR SYSTEM FOR ENHANCED MINERAL RECOVERY, FROM TAILINGS LINE AND DEPOSITS US15534632 2015-12-17 US20170361333A1 2017-12-21 Francis K. DIDDEN; Alan D. KERSEY; Mark R. FERNALD; Paul J. ROTHMAN
A transportable modular system for enhanced minerals recovery from tailings lines and deposits, features two transportable mineral recovery modules (TMRM), each TMRM for transporting as a truck mounted module to a remote site as an independently-operable mineral recovery module, each TMRM to couple to another TMRM on-site at the remote site and used together to provide enhanced minerals recovery. One TMRM having a central engineered polymer mineral recovery module that receives tailings fluid having a mineral particle of interest, processes the tailings fluid using an engineered polymer configuration, and provides recovered mineral processing fluids having the mineral particle of interest and a tailings disposal fluid. One other TMRM is selected from a group of TMRMs that includes another central engineered polymer mineral recovery module, a tailings fluid management module, an additive/chemical treatment polymer management module, a tailings disposal module and a recovery mineral processing module.
170 MECHANICAL PROCESSING OF OIL SANDS US15152351 2016-05-11 US20160251579A1 2016-09-01 Thomas Duma
A method of extracting bitumen from oil sands having a transition temperature at which the oil sands solidify includes forming formable oil sands into pellets and cooling at least a surface of the pellets sufficiently to prevent the pellets from aggregating; cooling the pellets to below the transition temperature; fracturing the pellets to release the bitumen from the oil sands while maintaining the temperature of the pellets below the transition temperature; and separating the bitumen from the oil sands in a separator.
171 CONTINUOUS GRAVITY ASSISTED ULTRASONIC COAL CLEANER US12724720 2010-03-16 US20100230329A1 2010-09-16 Bruce H. Kittrick; Douglas C. McHaney
An improved system and method for separating combustible organic particles from noncombustible inorganic particles in coal, in preparation for combustion. The coal is size-reduced and size-graded to small pieces which are then supplied to input ends of water-immersed descending slides having ultrasonic transducers for vibratory separation of inorganic and organic particles. The slides have different longitudinal lengths with angles of declination configured to achieve time-differential exposure to the ultrasonic vibratory energy, with smaller coal pieces being subjected to shorter time ultrasonic vibratory exposure. In one preferred form, longitudinally spaced turbidity sensors along the slide provide signals used to control selected ultrasonic transducers upon substantially complete cleaning of the coal pieces.
172 METHOD FOR SEPARATION US12299191 2007-05-04 US20100006501A1 2010-01-14 Lars Thomas Laurell; Filip Tobias Petersson
The invention relates to a method for separation of elements from a fluid using affinity-bearing particles suspended in the fluid and using ultrasonic standing waves and micro-fluidics. The method includes the steps of: mixing said fluid mixture with particles (10) having affinity to at least one element (9) to be separated; allowing the element (9) to be separated to bind to said affinity-bearing particles (10); subjecting the fluid to an ultrasonic wave field resulting in forces on the affinity-bearing particles (10) but substantially no forces on elements not bound to affinity-bearing particles; and allowing said forces to move said affinity-bearing particles (10) to a portion of the fluid thus obtaining a locally higher concentration of affinity-bearing particles. The method may be performed in a process with continuous flow.
173 METHOD FOR THE SEPARATION OF OVERLAPPING DENSITY POROUS MATERIALS FROM LESS POROUS MATERIALS US11733462 2007-04-10 US20080251426A1 2008-10-16 Joseph A. Pomykala, Jr.; Bassam J. Jody; Edward J. Daniels; Jeffrey S. Spangenberger; Scott T. Lockwood
Enhanced methods for separating of overlapping density porous materials are provided. The methods of the invention exploit the differences in the porosity of porous feed materials compared to that of the solid plastics. In the first stage, air is forced out of the pores of a porous feed material. In the second stage, a solution, having the appropriate density, is forced into the pores. This increases the density of the porous material relative to the density of the solid plastics. As a result, the porous material can be made to sink, while the solid plastics continue to float.
174 METHOD AND APPARATUS FOR SEPARATING USED MATERIALS FROM ONE ANOTHER AND INTO REUSABLE COMPONENTS PARTICULARLY FOR RECYCLING WOOD PRODUCTS, USED FURNITURE, AUTOMOBILE COMPOSITE MATERIAL AND SIMILAR PRODUCTS US10128499 2002-04-24 US06817556B2 2004-11-16 Rolf Hesch
A method for breaking down used materials or items, particularly wooden or motor-vehicle items, into reusable components with the use of fractionating tools, with which the accelerated parts of used material interact. The breakdown is effected selectively through impacts, deformation tension, bending stress, friction and/or shearing, with the shape and arrangement of the fractionating tools being set and/or matched to the structure and size of the used feed materials and/or the obtained recycled material.
175 Method and apparatus for the generation of ultrasonic energy fields within circular structures containing a liquid US09798677 2001-03-02 US20020121285A1 2002-09-05 John Eugene Poniatowski; Susan Elizabeth Poniatowski; John William Walkinshaw
A resonant chamber that produces an ultrasonic energy field about a central axis of the chamber to separate contrary matter from a working material. The resonant chamber has a circular cross section and utilizes a series of transducer elements to generate an ultrasonic transverse wave disposed about the internal longitudinal axis of the chamber. In addition, a driver circuit is provided that is able to efficiently excite the transducer elements to generate the ultrasonic transverse wave with a minimum of heat dissipation and power loss.
176 Apparatus and method for processing municipal solid waste US09578222 2000-05-23 US06397492B1 2002-06-04 Donald E. Malley
The present invention relates to an apparatus and method for separating and processing solid waste, often but not necessarily from municipalities (and so will be generically referred to herein as municipal solid waste or “MSW”), into useful products, and for reducing biohazards and putrid odors derived from MSW. The MSW is loaded into an elongated, generally cylindrically shaped rotating pressure vessel and is subjected to heat and pressure by the application of steam in specified amounts to break down the organic portion of the MSW into a cellulose feedstock, or a de-manufactured paper product, of uniform particle size and density. This product is then easily separable from other constituents of MSW, such as glass, aluminum and other metals, and plastics. The recyclables are recovered and sold in the market. The waste water from the process is reduced by processing through a water vamping apparatus. The apparatus and process disclosed herein, unlike any in the prior art, allows for an economically and technically viable industrial process and environmental solution, which have the potential to replace current landfill technology.
177 Method of producing powder materials US09462030 1999-12-29 US06367722B1 2002-04-09 Nicolai Fedorovich Gloukharev; Leonid Petrovich Zarogatskiy; Valeriy Grigorievich Levinson; Vyacheslav Sergevich Morozov
A method is provided for obtaining fine powders having narrow particle size range from non-conducting solids comprising the steps of: 1) creating an electrostatic charge on particles of a solid mixture formed by mechanical means, 2) grinding the mixture and neutralizing the electrostatic charge during grinding with a potential sufficient to create a corona discharge, 3) separating the powder according to particle size, and 4) collecting the finely ground finished powder product. The method is applicable to the manufacture of high quality cement powders.
178 Methods and apparatus for use in processing and treating particulate material US09319739 1999-06-11 US06269952B1 2001-08-07 John H. Watt; John Hugo Nellmapius
Spheres are released from within plurospheres by mixing a fluid with fly ash or bottom ash particulate material obtained by burning coal to form a slurry. The slurry is vibrated at an ultrasonic frequency and with sufficient power that plurospheres in the particulate material are cracked open to release spheres of the material which are encapsulated within the plurospheres. The so-treated material is separated from the slurry to obtain the released spheres.
179 Separation of minerals US09107290 1998-06-30 US06170669B2 2001-01-09 Geoffrey David Senior; Raimo Ilmari Ahveninen
A process for floating fine particles containing metal values of an iron-bearing sulphide mineral ore including the steps of conditioning the aqueous pulp of ore at a pH of between about 7 and about 10 with a reducing agent which is preferably oxy-sulphur compound which dissociates to form oxy-sulphur ions having the general formula: SnOyz− where n is greater than 1; y is greater than 2; and z is the valance of the ion. A suitable collector is then added to the conditioned aqueous pulp to further condition the pulp and the pulp potential of the pulp raised to a sufficient level for the collector to adsorb onto the sulphide mineral ore. Gas is then bubbled through the aqueous pulp to subject the pulp to froth flotation. The froth from the flotation process is recovered to produce a concentrate of fine sulphide mineral and other metal values. By conditioning the aqueous pulp at a pulp potential which dissolves the iron hydroxide film from the surface of the metal sulphide inclusions in the ore and subjecting the ore to froth flotation at a suitable pulp potential before the iron hydroxide can reform, the recovery of metal values in the fine ores can be greatly enhanced.
180 Continuous air agglomeration method for high carbon fly ash beneficiation US161673 1998-09-29 US6126014A 2000-10-03 McMahon L. Gray; Kenneth J. Champagne; Dennis H. Finseth
The carbon and mineral components of fly ash are effectively separated by a continuous air agglomeration method, resulting in a substantially carboree mineral stream and a highly concentrated carbon product. The method involves mixing the fly ash comprised of carbon and inorganic mineral matter with a liquid hydrocarbon to form a slurry, contacting the slurry with an aqueous solution, dispersing the hydrocarbon slurry into small droplets within the aqueous solution by mechanical mixing and/or aeration, concentrating the inorganic mineral matter in the aqueous solution, agglomerating the carbon and hydrocarbon in the form of droplets, collecting the droplets, separating the hydrocarbon from the concentrated carbon product, and recycling the hydrocarbon.
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