US3356211A - Separation of ore particles preferentially coated with liquid fluorescent material - Google Patents

Separation of ore particles preferentially coated with liquid fluorescent material Download PDF

Info

Publication number
US3356211A
US3356211A US416293A US41629364A US3356211A US 3356211 A US3356211 A US 3356211A US 416293 A US416293 A US 416293A US 41629364 A US41629364 A US 41629364A US 3356211 A US3356211 A US 3356211A
Authority
US
United States
Prior art keywords
ore
particles
fluorescent material
coated
separation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US416293A
Other languages
English (en)
Inventor
Ted C Mathews
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US416293A priority Critical patent/US3356211A/en
Priority to GB50118/65A priority patent/GB1078430A/en
Priority to DEM67544A priority patent/DE1237512B/de
Priority to SE15736/65A priority patent/SE311501B/xx
Priority to OA52273A priority patent/OA02048A/fr
Priority to FR41290A priority patent/FR1475692A/fr
Application granted granted Critical
Publication of US3356211A publication Critical patent/US3356211A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
    • B03B1/04—Conditioning for facilitating separation by altering physical properties of the matter to be treated by additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34—Sorting according to other particular properties
    • B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
    • B07C5/3425—Sorting according to other particular properties according to optical properties, e.g. colour of granular material, e.g. ore particles, grain
    • B07C5/3427—Sorting according to other particular properties according to optical properties, e.g. colour of granular material, e.g. ore particles, grain by changing or intensifying the optical properties prior to scanning, e.g. by inducing fluorescence under UV or x-radiation, subjecting the material to a chemical reaction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/36—Sorting apparatus characterised by the means used for distribution
    • B07C5/363—Sorting apparatus characterised by the means used for distribution by means of air
    • B07C5/365—Sorting apparatus characterised by the means used for distribution by means of air using a single separation means
    • B07C5/366—Sorting apparatus characterised by the means used for distribution by means of air using a single separation means during free fall of the articles

Definitions

  • ABSTRACT OF THE DISCLOSURE The patent describes a method for the concentration of ore by subjecting a quantity of crushed ore containing various types of minerals to electromagnetic radiation to cause at least a portion thereof to fluoroesce at a characteristic wavelength distinct from that of the rest of the ore mass, and sensing the characteristic wavelength emitted by the radiated particles.
  • the fluorescence of at least one portion of the ore at characteristic wavelength distinct from that of the rest of the ore is achieved by the preferential coating of some of the ore particles with a liquid fluorescent material.
  • the desired mineral may be separated from the worthless portion by radiating the ore to cause a portion of it to emit at a characteristic wavelength and sensing the emitted rays.
  • the sensed rays are used to operate means for separating the ore into a desired and an undesired portion.
  • the desired separation may be achieved by first treating a quantity of the ore with a liquid which preferentially coats the particles of one of the portions of the ore and is also capable of emitting at a characteristic wavelength upon exposure to ultraviolet light, X-rays, or other suitable type of electromagnetic radiation.
  • the treated ore is then passed to a separation zone where an electromagnetic wave means sensitive to the characteristic wavelength detects which particles are coated and which particles are not.
  • the sensing means then functions to actuate a deflecting means which physically removes the coated particles from the body of ore particles.
  • a desired or undesired type of mineral may be removed from the mass of ore.
  • a portion of a body of ore is caused to emit a characteristic wavelength, which wavelength is unlike that emitted by the rest of the ore.
  • the ore particles are then separated according to whether they emit the characeristic wavelength.
  • This is preferably accomplished in the following manner.
  • a quantity of ore containing at least one valuable mineral portion is first treated with a liquid which preferentially coats the particles of one of the minerals in the ore.
  • the coating liquid in adition to being specific to particles of one of the minerals in the ore, is also capable of fluoroescing at a characteristic Wavelength after exposure to ultraviolet, X-rays, or any other suitable type of radiation. For this reason, the coating liquid is sometimes referred to as the fiuoroscent material.
  • the ore which in the preferred embodiment has been treated with the fluorescent material to provide both coated and uncoated particles, is placed on a conveyor 1 and caused to drop from the end of conveyor in a downward path past a radiation source 2, into a zone where the characteristic radiation emitted by the radiated particles is received in an electromagnetic wave-sensing means 3.
  • the wave energy received by means 3 produces a small current which is amplified by an amplifier 4.
  • the output of the amplifier then triggers a rectifier switch 5 which, in turn, energizes deflecting means 6, normally a solenoidoperated air jet, water jet, or mechanical gate.
  • the deflecting means knocks the particle emitting at the characteristic wavelength out of the stream of ore particles. These particles are received in collector 7, with the balance of the particles falling into collector 8.
  • the coating may be dispensed with in the case of natural iluorescing ores. These ores, upon excitation, emit at a characteristic wavelength which can be used to activate separation. Typical materials that can be recovered from ore mixtures without coating or other pretreatment are willemite, hydrozincite, uranite, calcite and sheelite. Other ores separated by the technique of this invention are first pretreated to provide a preferential coating capable of emitting at a charactersitic wavelength upon exposure to one of the many forms of electromagnetic radiation.
  • fluorescence refers to the property of absorbing radiation at one particular Wavelength and re-emitting it as light of a different wavelength so long as the stimulus is active.
  • fluorescence is used generically herein to include the limited definitions of both fluorescence and phosphorescence, and envisions the emission of a characteristic wavelength whether or not visible.
  • a wire variety of organic materials which fiuoresce at a characteristic wavelength upon excitation by ultraviolet light, X-rays, or other radiation may be used to preferentially coat either the desired or the undesired portion of the ore.
  • organic fluorescent substances are anthracene, fluorescein, chrysene, aminoacetal picrate, petroleum base lubricating oil, allylamine picrate, aluminum palmitate, ammonium mandelate, calcium triethanolamine theobroinine, ferrous stearate, glyceryl monooleate, glyceryl monostearate, hydrastine, hydrastine chloride, lead naphthenate, lead linoleate, lead stearate, manganous stearate and benzene. Certain of these materials are solids at ordinary temperatures and hence are used in solution. For example, anthracene may be dissolved in benzene.
  • collectors are usually long chain molecules with an atomic group which orients on the particle surface and another group which orients on the fluorescent substance. While not bound by any theory, it is believed that the collector is preferentially absorbed on the mineral surface and displaces the water film normally present thereon.
  • Collectors may be of any one of several types and are generally classified on the basis of their surface attachment into three groups-anionic, cationic and neutral.
  • Anionic collectors usch as xanthates adhere to minerals with a positive surface potential such as metals and sulfides.
  • Cationic collectors usch as amines adhere to surfaces having a negative charge such as silicates.
  • the neutral collectors such as petroleum derivatives adhere to surfaces more positive than the neutral hydrocarbon.
  • the use of a collector is not always require-d.
  • many petroleum base lubricating oils will both preferentially adhere to certain minerals and also fluoresce when excited by electromagnetic radiation.
  • the following list is merely illustrative of some of the anionic collectors which may be employed in this invention: the alkali alkyl xanthates, such as sodium sec-butyl xanthate, potassium ethyl xanthate, sodium ethyl xanthate and potassium amyl xanthate; aryl dithiophosphoric acids such as phenyl dithiophosphoric acid; fatty acids such as stearic acid; thio carbanilide; saponified fatty acids such as sodium stearate and potassium stearate; sulfonated oils; glycerides such as tripalmitin and tristearin; and alcohols.
  • the alkali alkyl xanthates such as sodium sec-butyl xanthate, potassium
  • the cationic collectors include the alkyl ammonium halides such as amyl trimethyl ammonium bromide and cetyl trimethyl ammonium bromide; the alkali metal and alkaline earth metal alkyl aryl sulfonates such as sodium dodecyl benzene sulfonate and calcium dodecyl benzene sulfonate; the alkyl ammonium acetates such as dodecylammonium acetate; long-chain alcohols such as dodecyl alcohol; ethylenically unsaturated monocarboxylic acids and their soaps such as oleic acid, linoleic acid, sodium oleate and sodium linoleate; fatty amine acetates; and benzene.
  • alkyl ammonium halides such as amyl trimethyl ammonium bromide and cetyl trimethyl ammonium bromide
  • the fluorescent material and the collector may be applied to the ore in a variety of ways, including spraying and dipping.
  • the fluorescent material is added to the collector prior to ore treatment.
  • the ore may be treated with the collector and the fluorescent material sequentially. Any excess of the fluorescent material or collector may be readily removed by washing with water.
  • a fluorescent ore, or the fluorescent material preferentially absorbed on some of the ore particles can be caused to fluoresce at a characteristic wavelength by radiation from the full spectrum of electromagnetic energy, varying from radio waves through infrared, visible, ultraviolet, gamma rays, and ionic bombardment.
  • the specific type of radiation employed in any given situation will depend upon the particular fluorescent material being used. For example, anthracene and petroleum base lubricating oils upon exposure to ultraviolet light (25003700 angstroms) will fluoresce strongly at about 4000 angstroms.
  • any ore portion whether naturally fluorescent or not, may be readily separated from any other portion. It will, therefore, be recognized that the following examples are presented solely to illustrate the invention and should not be regarded as limitative in any way.
  • Example I A quantity of crushed ore containing primarily quartz and calcite is coated with a petroleum base lubricating oil (sold by the Standard Oil Co. under the name Penn Motor Oil SAE 30). The excess lubricating oil is removed by flushing with water. Microscopic examination of the particles reveals that the quartz rejects the lubricating oil while coating the calcite.
  • the apparatus used to separate the ore includes a conveyor having an ultraviolet light source stationed at its discharge end. Below the ultraviolet source is positioned a 931-A photo multiplier tube sensitive to 4000 A. emissions. A Wratten filter is interposed in the optical path of the tube to eliminate stray ultraviolet.
  • the output of the tube leads to an amplifier which triggers a silicon controlled rectifier switch which, in turn, energizes a solenoid-operated air jet located below the ultraviolet source.
  • the treated ore is placed on the moving conveyor belt at a rate which provides a single layer of ore particles.
  • the ore particles are exposed to ultraviolet light as they leave the end of the conveyor and'are in free fall.
  • the 4000 A. emissions from the coated particles are sensed by the photo multiplier tube. It is found that the air jet deflector actuated by the tube produces a high degree of separation of the coated calcite from the quartz.
  • Example II A quantity of crushed ore containing quartz, sandstone, argillite, schist, quartzite and calcite is first washed to remove adhered particles. The ore is then sprayed with an aqueous mixture of dodecylammonium acetate and anthracene dissolved in benzene. The ore is then washed with water to remove the coating solution from the unwanted portions and to leave a coating of anthracene only on the quartz particles. The quartz is then separated from the rest of the ore according to the procedure and employing the apparatus described in Example I.
  • Example III A quantity of crushed ore containing sulfide minerals, sandstone, argillite, schist and calcite are washed with water to remove adhered particles. The ore is then washed with an aqueous solution of anthracene and phenyl dithiophosphoric acid. The excess is removed by washing with water. It is found that the anthracene preferentially adheres to the surface of the sulfide minerals. The sulfide mineral is then effectively separated from the bulk of the ore in the manner set forth in Example I.
  • the wave sensing means 3 is typically a photo multiplier tube having a sensitivity to specific wavelength bands.
  • the bands received at the sensing means are narrowed, as required, by the use of filters.
  • Tubes are cornmercially available having sensitivities from the infrared to the ultraviolet. Thus, it is a simple matter to select a tube which is sensitive to the characteristic wavelength emitted upon electromagnetic excitation of any given fluorescent ore or material.
  • photo multiplier tubes photons which result from fluorescence are received in a first stage and converted to electrons which are deflected to succeeding states by electrostatic fields and multiplied by secondary emission from each stage.
  • the weak current emerging from the photo multiplier tube may be amplified in a conventional solid state amplifier. Since the current from the amplifier is used to operate deflection means 6, it is usually necessary to incorporate an adjustable delay network in the amplifier in order to achieve register between the position of the particle at the time of detection by the sensing means and the time of deflection.
  • the particles are passed before the sensing means at a high velocity.
  • the sensing means is normally placed so that the ore particles passing before it are in free fall and thus have a high velocity and a fixed path.
  • the sensing means is conveniently located so that the sensing means detects the particles soon after they leave the end of the conveyor. To assure a high degree of separation, the ore particles are fed to the conveyor at arate which provides a single layer. While only one sensing means is shown in the drawing, it will be understood that the number of sensing means used is dependent upon the tonnage of ore particles to be handled, the width of the conveyor, and the size of the particles. The field of detection for each sensing means is limited to an area approximately equal to the area of an individual ore particle.
  • deflecting means 6 has been found to depend on the individual size of the ore particles.
  • An air jet is useful on sizes below /2 inch.
  • a water jet is used on sizes between /2 inch and 4 inches, while a mechanical gate is used for even larger sizes.
  • the method for the concentration of ore which comprises treating a quantity of crushed ore containing various types of minerals with a liquid fluorescent material capable of preferentially coating some of the particles in the ore, radiating the treated quantity of ore to excite the liquid on the coated particles to fluoresce at a characteristic wavelength, and separating the coated particles from the uncoated particles on the basis of the difference in their emitted wavelengths.
  • the method for the concentration of ore which comprises treating a quantity of crushed ore containing various types of minerals with a liquid fluorescent material capable of preferentially coating some of the particles in the ore, radiating the treated quantity of ore to excite the liquid on the coated particles, passing the radiated treated quantity of ore through a zone where the characteristic wavelength emitted by the radiated coated particles is received in an electromagnetic wavesensitive element, and automatically displacing the coated particles in accordance with the selective response of the electromagnetic Wave-sensitive element to the characteristic wavelength received therein.
  • the method for the concentration of calcite-containing ore which comprises treating a quantity of calcitecontaining ore containing various types of minerals with a liquid fluorescent material capable of preferentially coating some of the particles in the ore, radiating the treated quantity of ore to excite the liquid on the coated particles, passing the radiated treated quantity of ore through a zone where the characteristic wavelength emitted by the radiated coated particles is received in an electromagnetic wave-sensitive element, and automatically displacing the coated particles in accordance with the selective response of the electromagnetic wavesensitive element to the characteristic wavelength received therein.
  • the method for the concentration of quartz-containing ore which comprises treating a quantity of quartzcontaining ore containing various types of minerals with a liquid fluorescent material capable of preferentially coating some of the particles in the ore, radiating the treated quantity of ore to excite the liquid on the coated particles, passing the radiated treated quantity of ore through a zone where the characteristic wavelength emitted by the radiated coated particles is received in an electromagnetic wave-sensitive element, and automatically displacing the coated particles in accordance with the selective response of the electromagnetic wave-sensitive element to the characteristic wavelength received therein.
  • the method for the concentration of sulfide-containing ore which comprises treating a quantity of sulfidecontaining ore containing various types of minerals with a liquid fluorescent material capable of preferentially coating some of the particles in the ore, radiating the treated quantity of ore to excite the liquid on the coated particles, passing the radiated treated quantity of ore through a zone where the characteristic Wavelength emitted by the radiated coated particles is received in an electromagnetic wave-sensitive element, and automatically displacing the coated particles in accordance with the selective response of the electromagnetic wavesensitive element to the characteristic wavelength received therein.
  • the method for the concentration of ore which comprises treating a quantity of ore containing various types of minerals with anthracene to preferentially coat some of the particles in the ore, radiating the treated quantity of ore to cause the anthracene on the coated particles to fiuoresce, passing the radiated treated quantity of ore through a zone where the characteristic wavelength emitted by the radiated coated particles is received in an electromagnetic Wave-sensitive element, and automatically displacing the coated particles in accordance with the selective response of the electromagnetic wavesensitive element to the characteristic wavelength received therein.
  • the method for the concentration of ore which comprises treating a quantity of ore containing various types of minerals with a petroleum base lubricating oil to preferentially coat some of the particles in the ore, radiating the treated quantity of ore to cause the lubricating oil on the coated particles to fiuoresce, passing the radiated treated quantity of ore through a zone Where the characteristic wavelength emitted by the radiated coated parti- 8 cles is received in an electromagnetic wave-sensitive element, and automatically displacing the coated particles in accordance with the selective response of the electromagnetic wave-sensitive element to the characteristic wavelength received therein.

Landscapes

  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Luminescent Compositions (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
US416293A 1964-12-07 1964-12-07 Separation of ore particles preferentially coated with liquid fluorescent material Expired - Lifetime US3356211A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US416293A US3356211A (en) 1964-12-07 1964-12-07 Separation of ore particles preferentially coated with liquid fluorescent material
GB50118/65A GB1078430A (en) 1964-12-07 1965-11-25 Ore concentration process
DEM67544A DE1237512B (de) 1964-12-07 1965-12-06 Verfahren zum Sortieren von Erzen
SE15736/65A SE311501B (fr) 1964-12-07 1965-12-06
OA52273A OA02048A (fr) 1964-12-07 1965-12-06 Procédé de concentration d'un minerai.
FR41290A FR1475692A (fr) 1964-12-07 1965-12-07 Procédé de traitement et de concentration de minerais pauvres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US416293A US3356211A (en) 1964-12-07 1964-12-07 Separation of ore particles preferentially coated with liquid fluorescent material

Publications (1)

Publication Number Publication Date
US3356211A true US3356211A (en) 1967-12-05

Family

ID=23649384

Family Applications (1)

Application Number Title Priority Date Filing Date
US416293A Expired - Lifetime US3356211A (en) 1964-12-07 1964-12-07 Separation of ore particles preferentially coated with liquid fluorescent material

Country Status (6)

Country Link
US (1) US3356211A (fr)
DE (1) DE1237512B (fr)
FR (1) FR1475692A (fr)
GB (1) GB1078430A (fr)
OA (1) OA02048A (fr)
SE (1) SE311501B (fr)

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3795310A (en) * 1971-11-10 1974-03-05 Rech Geol Minieres Bureau De Process and apparatus for carrying out said process for the preconcentration of ores by induced measure of the superficial contents
US3837582A (en) * 1972-12-27 1974-09-24 Cyprus Mines Corp Beneficiation of new york state talc
US3901793A (en) * 1971-11-10 1975-08-26 Rech Geolog Miniere Process for the preconcentration of ores by induced measure of the superficial contents
US4169045A (en) * 1978-04-19 1979-09-25 Occidental Research Corporation Separation of shale from waste material
WO1979000950A1 (fr) * 1978-04-19 1979-11-15 Occidental Res Corp Separation de materiau contenant du calcium du minerai
WO1979000952A1 (fr) * 1978-04-19 1979-11-15 Occidental Res Corp Separation du charbon a partir de dechets
US4207175A (en) * 1978-04-19 1980-06-10 Occidental Research Corporation Separation of magnesite from ores which also contain calcite or dolomite
US4208272A (en) * 1978-04-19 1980-06-17 Occidental Research Corporation Separation of limestone from limestone ore
US4235708A (en) * 1978-04-19 1980-11-25 Occidental Research Corporation Method of separating a mixture of ore particles
FR2455482A1 (fr) * 1979-05-04 1980-11-28 Occidental Res Corp Procede pour separer les composants d'un minerai renfermant du calcium
US4236640A (en) * 1978-12-21 1980-12-02 The Superior Oil Company Separation of nahcolite from oil shale by infrared sorting
US4241102A (en) * 1979-06-04 1980-12-23 Occidental Research Corporation Apparatus and method for the selective wetting of particles
WO1981001530A1 (fr) * 1979-12-05 1981-06-11 Occidental Res Corp Procede utilisant des composes de marquage detectables pour trier des particules
US4326950A (en) * 1978-04-19 1982-04-27 Occidental Research Corporation Process for separating oil shale waste material
US4347125A (en) * 1979-12-05 1982-08-31 Occidental Research Corporation Sorting of ores with detectable compounds
US4352731A (en) * 1980-11-03 1982-10-05 Occidental Research Corporation Apparatus for selective wetting of particles
US4355231A (en) * 1980-08-25 1982-10-19 Suncor Inc. Remote analysis using thermal radiation
US4382515A (en) * 1978-04-19 1983-05-10 Occidental Research Corp. Separation of limestone from limestone ore
US4423814A (en) 1981-06-05 1984-01-03 Occidental Research Corporation Separation or concentration of magnesium-bearing minerals by induced fluorescence
US4462495A (en) * 1979-06-04 1984-07-31 Occidental Research Corporation Process and apparatus for the separation of particles into three fractions of similar compositions
US5024753A (en) * 1989-10-03 1991-06-18 Iowa State University Research Foundation, Inc. Material separation efficiency determination employing fluorescing control particles
US5236092A (en) * 1989-04-03 1993-08-17 Krotkov Mikhail I Method of an apparatus for X-radiation sorting of raw materials
US5303310A (en) * 1991-08-30 1994-04-12 Imc Fertilizer, Inc. Method and apparatus for image analysis of composite ores
US5305895A (en) * 1991-02-13 1994-04-26 Samro-Bystronic Maschinen Ag Method and device for measuring a dimension of a body, and use of said method
US5615778A (en) * 1991-07-29 1997-04-01 Rwe Entsorgung Aktiengesellschaft Process to sort waste mixtures
US20040020831A1 (en) * 2000-09-23 2004-02-05 Peter Meinlschmidt Method and device for determining a temperature distribution of bulk material
WO2005106438A1 (fr) * 2004-04-30 2005-11-10 Titech Visionsort As Appareil et procede d'inspection d'un flux de matiere par diffusion de lumiere a l'interieur de ladite matiere
EP1647337A1 (fr) * 2004-10-18 2006-04-19 M.A.M.I. Modern Allround Management International Appareil et méthode de triage des articles
US20060219612A1 (en) * 2005-01-28 2006-10-05 Satake Usa, Inc. Multiport ejector for use with sorter
DE102011007666A1 (de) * 2011-04-19 2012-10-25 Siemens Aktiengesellschaft Fluoreszenzkontrolle
US20130345856A1 (en) * 2012-06-25 2013-12-26 International Business Machines Corporation Identification of Plastic Material Composition
US20130341249A1 (en) * 2012-06-25 2013-12-26 International Business Machines Corporation Identification of Plastic Material Composition

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2121535B (en) * 1982-06-02 1986-04-30 Anglo Amer Corp South Africa Detector for use in sorting system
GB8805103D0 (en) * 1988-03-03 1988-03-30 Molins Plc Cigarette manufacture
GB8914363D0 (en) * 1989-06-22 1989-08-09 Bxl Plastics Ltd Waste recovery
DE102014201939A1 (de) * 2014-02-04 2015-08-06 Siemens Aktiengesellschaft Verfahren und Einrichtung zum Auftrennen eines Gesteins in taubes Gestein und mindestens ein Wertgestein

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1577328A (en) * 1920-07-26 1926-03-16 Minerals Separation North Us Ore concentration
US2096099A (en) * 1935-08-16 1937-10-19 Method of detecting leaks in
US2267999A (en) * 1939-03-20 1941-12-30 Robert C Switzer Magnetic testing
US2717693A (en) * 1949-09-06 1955-09-13 Fred T Holmes Method of and apparatus for sorting radiation emissive material
US2878392A (en) * 1954-12-07 1959-03-17 Gen Electric Method of detecting leaks and testing media therefor
US3011634A (en) * 1958-03-03 1961-12-05 K & H Equipment Ltd Method and apparatus for sorting materials
US3016143A (en) * 1958-12-19 1962-01-09 Int Minerals & Chem Corp Flotation of granular ores
US3061723A (en) * 1959-11-06 1962-10-30 Standard Oil Co Analytical system
US3118060A (en) * 1959-10-16 1964-01-14 Courtaulds Ltd Control of finish on fibrous material by the use of a fluorescing substance
US3255881A (en) * 1961-05-29 1966-06-14 Anaconda Co Flotation process control

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE516130C (de) * 1926-08-14 1931-01-19 Fried Krupp Grusonwerk Akt Ges Verfahren zur Leitung physikalisch verschiedenartig sich verhaltender, einzeln nacheinander vorgefuehrter Materialstuecke in getrennte Bewegungsbahnen
AT114673B (de) * 1926-08-14 1929-10-25 Krupp Fried Grusonwerk Ag Verfahren zum Trennen von bergmännischen Rohprodukten.

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1577328A (en) * 1920-07-26 1926-03-16 Minerals Separation North Us Ore concentration
US2096099A (en) * 1935-08-16 1937-10-19 Method of detecting leaks in
US2267999A (en) * 1939-03-20 1941-12-30 Robert C Switzer Magnetic testing
US2717693A (en) * 1949-09-06 1955-09-13 Fred T Holmes Method of and apparatus for sorting radiation emissive material
US2878392A (en) * 1954-12-07 1959-03-17 Gen Electric Method of detecting leaks and testing media therefor
US3011634A (en) * 1958-03-03 1961-12-05 K & H Equipment Ltd Method and apparatus for sorting materials
US3016143A (en) * 1958-12-19 1962-01-09 Int Minerals & Chem Corp Flotation of granular ores
US3118060A (en) * 1959-10-16 1964-01-14 Courtaulds Ltd Control of finish on fibrous material by the use of a fluorescing substance
US3061723A (en) * 1959-11-06 1962-10-30 Standard Oil Co Analytical system
US3255881A (en) * 1961-05-29 1966-06-14 Anaconda Co Flotation process control

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3795310A (en) * 1971-11-10 1974-03-05 Rech Geol Minieres Bureau De Process and apparatus for carrying out said process for the preconcentration of ores by induced measure of the superficial contents
US3901793A (en) * 1971-11-10 1975-08-26 Rech Geolog Miniere Process for the preconcentration of ores by induced measure of the superficial contents
US3837582A (en) * 1972-12-27 1974-09-24 Cyprus Mines Corp Beneficiation of new york state talc
US4207175A (en) * 1978-04-19 1980-06-10 Occidental Research Corporation Separation of magnesite from ores which also contain calcite or dolomite
WO1979000950A1 (fr) * 1978-04-19 1979-11-15 Occidental Res Corp Separation de materiau contenant du calcium du minerai
WO1979000952A1 (fr) * 1978-04-19 1979-11-15 Occidental Res Corp Separation du charbon a partir de dechets
US4326950A (en) * 1978-04-19 1982-04-27 Occidental Research Corporation Process for separating oil shale waste material
US4208273A (en) * 1978-04-19 1980-06-17 Occidental Research Corporation Separation of coal from waste material
US4208272A (en) * 1978-04-19 1980-06-17 Occidental Research Corporation Separation of limestone from limestone ore
US4235708A (en) * 1978-04-19 1980-11-25 Occidental Research Corporation Method of separating a mixture of ore particles
US4169045A (en) * 1978-04-19 1979-09-25 Occidental Research Corporation Separation of shale from waste material
US4382515A (en) * 1978-04-19 1983-05-10 Occidental Research Corp. Separation of limestone from limestone ore
US4236640A (en) * 1978-12-21 1980-12-02 The Superior Oil Company Separation of nahcolite from oil shale by infrared sorting
FR2455482A1 (fr) * 1979-05-04 1980-11-28 Occidental Res Corp Procede pour separer les composants d'un minerai renfermant du calcium
US4462495A (en) * 1979-06-04 1984-07-31 Occidental Research Corporation Process and apparatus for the separation of particles into three fractions of similar compositions
EP0052681A1 (fr) * 1979-06-04 1982-06-02 Occidental Research Corporation Revêtement sélectif de particules
US4241102A (en) * 1979-06-04 1980-12-23 Occidental Research Corporation Apparatus and method for the selective wetting of particles
EP0030802A2 (fr) * 1979-12-05 1981-06-24 Occidental Research Corporation Triage de particules
US4347125A (en) * 1979-12-05 1982-08-31 Occidental Research Corporation Sorting of ores with detectable compounds
EP0030802A3 (fr) * 1979-12-05 1983-07-20 Occidental Research Corporation Triage de particules
WO1981001530A1 (fr) * 1979-12-05 1981-06-11 Occidental Res Corp Procede utilisant des composes de marquage detectables pour trier des particules
US4355231A (en) * 1980-08-25 1982-10-19 Suncor Inc. Remote analysis using thermal radiation
US4352731A (en) * 1980-11-03 1982-10-05 Occidental Research Corporation Apparatus for selective wetting of particles
US4423814A (en) 1981-06-05 1984-01-03 Occidental Research Corporation Separation or concentration of magnesium-bearing minerals by induced fluorescence
US5236092A (en) * 1989-04-03 1993-08-17 Krotkov Mikhail I Method of an apparatus for X-radiation sorting of raw materials
US5024753A (en) * 1989-10-03 1991-06-18 Iowa State University Research Foundation, Inc. Material separation efficiency determination employing fluorescing control particles
US5305895A (en) * 1991-02-13 1994-04-26 Samro-Bystronic Maschinen Ag Method and device for measuring a dimension of a body, and use of said method
US5615778A (en) * 1991-07-29 1997-04-01 Rwe Entsorgung Aktiengesellschaft Process to sort waste mixtures
US5303310A (en) * 1991-08-30 1994-04-12 Imc Fertilizer, Inc. Method and apparatus for image analysis of composite ores
US20040020831A1 (en) * 2000-09-23 2004-02-05 Peter Meinlschmidt Method and device for determining a temperature distribution of bulk material
WO2005106438A1 (fr) * 2004-04-30 2005-11-10 Titech Visionsort As Appareil et procede d'inspection d'un flux de matiere par diffusion de lumiere a l'interieur de ladite matiere
JP2007535671A (ja) * 2004-04-30 2007-12-06 ティテス ヴィションソルト アクチスカベット 物質の内部の光散乱によって物質の流れを検査するための装置及び方法
JP4824017B2 (ja) * 2004-04-30 2011-11-24 ティテス ヴィションソルト アクチスカベット 物質の内部の光散乱によって物質の流れを検査するための装置及び方法
EP1647337A1 (fr) * 2004-10-18 2006-04-19 M.A.M.I. Modern Allround Management International Appareil et méthode de triage des articles
US20060219612A1 (en) * 2005-01-28 2006-10-05 Satake Usa, Inc. Multiport ejector for use with sorter
DE102011007666A1 (de) * 2011-04-19 2012-10-25 Siemens Aktiengesellschaft Fluoreszenzkontrolle
US20130345856A1 (en) * 2012-06-25 2013-12-26 International Business Machines Corporation Identification of Plastic Material Composition
US20130341249A1 (en) * 2012-06-25 2013-12-26 International Business Machines Corporation Identification of Plastic Material Composition
US9000318B2 (en) * 2012-06-25 2015-04-07 International Business Machines Corporation Identification of plastic material composition
US9164017B2 (en) * 2012-06-25 2015-10-20 International Business Machines Corporation Identification of plastic material composition
US10413944B2 (en) 2012-06-25 2019-09-17 International Business Machines Corporation Identification of plastic material composition

Also Published As

Publication number Publication date
FR1475692A (fr) 1967-04-07
OA02048A (fr) 1970-05-05
DE1237512B (de) 1967-03-30
SE311501B (fr) 1969-06-16
GB1078430A (en) 1967-08-09

Similar Documents

Publication Publication Date Title
US3356211A (en) Separation of ore particles preferentially coated with liquid fluorescent material
US3472375A (en) Apparatus and method for separating ore
US4423814A (en) Separation or concentration of magnesium-bearing minerals by induced fluorescence
US3346111A (en) Method of rendering asbestos ore particles differentially fluorescent
GB2188727A (en) Sorting ore particles
US4462495A (en) Process and apparatus for the separation of particles into three fractions of similar compositions
KR101722457B1 (ko) 자외선 파장을 이용하는 형광 광물 선별장치
US4241102A (en) Apparatus and method for the selective wetting of particles
US4208272A (en) Separation of limestone from limestone ore
Poloko Physical separation methods, part 1: A review
JPH0271144A (ja) 宝石の識別
US3936294A (en) Reagent for zinc ore and method of utilizing same
GB1604419A (en) Mineral exploration
US4347125A (en) Sorting of ores with detectable compounds
US4208273A (en) Separation of coal from waste material
US4169045A (en) Separation of shale from waste material
RU2733434C1 (ru) Способ и устройство электроимпульсного дробления-сепарации
US4207175A (en) Separation of magnesite from ores which also contain calcite or dolomite
JPH10216651A (ja) 金属選別方法とこの方法を用いた金属選別装置
US4382515A (en) Separation of limestone from limestone ore
RU2424860C1 (ru) Способ сепарации алмазосодержащих материалов
JP3276801B2 (ja) 金属破砕分別方法及びシステム
US4326950A (en) Process for separating oil shale waste material
CA1121761A (fr) Separation des matieres a teneur de calcium en presence dans les minerais
US6096991A (en) Method of and apparatus for sorting a particulate material