EP0030802A3 - Sorting particles - Google Patents

Sorting particles Download PDF

Info

Publication number
EP0030802A3
EP0030802A3 EP80304174A EP80304174A EP0030802A3 EP 0030802 A3 EP0030802 A3 EP 0030802A3 EP 80304174 A EP80304174 A EP 80304174A EP 80304174 A EP80304174 A EP 80304174A EP 0030802 A3 EP0030802 A3 EP 0030802A3
Authority
EP
European Patent Office
Prior art keywords
particles
gangue
particle
type
separating
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.)
Withdrawn
Application number
EP80304174A
Other languages
German (de)
French (fr)
Other versions
EP0030802A2 (en
Inventor
Peter Michael Digiacomo
William R. White
John Richard Mckinley
Won Choon Park
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.)
Occidental Research Corp
Original Assignee
Occidental Research Corp
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
Priority claimed from US06/100,618 external-priority patent/US4347125A/en
Priority claimed from US06/108,611 external-priority patent/US4321133A/en
Application filed by Occidental Research Corp filed Critical Occidental Research Corp
Publication of EP0030802A2 publication Critical patent/EP0030802A2/en
Publication of EP0030802A3 publication Critical patent/EP0030802A3/en
Withdrawn legal-status Critical Current

Links

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
    • B03B13/00—Control arrangements specially adapted for wet-separating apparatus or for dressing plant, using physical effects
    • B03B13/02—Control arrangements specially adapted for wet-separating apparatus or for dressing plant, using physical effects using optical effects
    • 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

Landscapes

  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Glanulating (AREA)

Abstract

A process for separating one type of particle (e.g., ore particles) from a second type of particle (e.g., gangue parti­ cles) comprising the steps of (1) conditioning the particles to selectively mark one type of particle i.e. either the ore parti­ cles or the gangue particles), to the substantial exclusion of the other; (2) detecting the marked particles; and (3) separat­ ing the detected marked particles from the substantially unmarked particles is characterised by the use, as a condition­ ing agent, of a compound having both a surface-selective functional group and a detectable moiety. In one embodi­ ment, the detectable moiety is fluorescent and detecting is performed under ultraviolet radiation. The process is espe­ cially useful for separating higher grade limestone from lower grade limestone and/or gangue or for separating oil shale or coal of high heat value from lower heat content materials or for concentrating valuable minerals, such as silver or copper ores.
EP80304174A 1979-12-05 1980-11-20 Sorting particles Withdrawn EP0030802A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US06/100,618 US4347125A (en) 1979-12-05 1979-12-05 Sorting of ores with detectable compounds
US100618 1979-12-05
US108611 1979-12-31
US06/108,611 US4321133A (en) 1979-12-31 1979-12-31 Sorting of limestone ores using fluorescent compounds

Publications (2)

Publication Number Publication Date
EP0030802A2 EP0030802A2 (en) 1981-06-24
EP0030802A3 true EP0030802A3 (en) 1983-07-20

Family

ID=26797369

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80304174A Withdrawn EP0030802A3 (en) 1979-12-05 1980-11-20 Sorting particles

Country Status (7)

Country Link
EP (1) EP0030802A3 (en)
JP (1) JPS56501636A (en)
BR (1) BR8008964A (en)
ES (1) ES497438A0 (en)
FI (1) FI803761L (en)
GR (1) GR72502B (en)
WO (1) WO1981001530A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2008726B1 (en) * 2007-06-29 2013-08-14 Eurecat Sa. Colour sorting of catalyst or adsorbent particles
CN113075243A (en) * 2020-07-27 2021-07-06 广东省资源综合利用研究所 Quantitative analysis method for light element-containing low-grade mineral
CN112536239B (en) * 2020-11-03 2022-04-19 安徽理工大学 Coal and gangue separation system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3346111A (en) * 1964-11-24 1967-10-10 Colonial Sugar Refining Co Method of rendering asbestos ore particles differentially fluorescent
US3356211A (en) * 1964-12-07 1967-12-05 Ted C Mathews Separation of ore particles preferentially coated with liquid fluorescent material
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 (en) * 1978-04-19 1979-11-15 Occidental Res Corp Separation of calcium-containing material from ore
WO1979000952A1 (en) * 1978-04-19 1979-11-15 Occidental Res Corp Separation of coal from waste material

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1678884A (en) * 1926-10-21 1928-07-31 William G Rice Metallurgical separator
US2967614A (en) * 1959-06-30 1961-01-10 Fredoon S Nury Sorting raisins by optical difference
US3472375A (en) * 1967-10-27 1969-10-14 Ted C Mathews Apparatus and method for separating ore
FR2159736A5 (en) * 1971-11-10 1973-06-22 Rech Geolog Miniere
US3936188A (en) * 1972-11-06 1976-02-03 Sawyer Research Products, Inc. Color sorting of irradiated materials and a calibrated color comparison array
US3962403A (en) * 1974-01-14 1976-06-08 The Superior Oil Company Process for separation of nahcolite from oil shale
US3992287A (en) * 1975-02-27 1976-11-16 Rhys Hugh R Oil shale sorting
US4208272A (en) * 1978-04-19 1980-06-17 Occidental Research Corporation Separation of limestone from limestone ore
US4207175A (en) * 1978-04-19 1980-06-10 Occidental Research Corporation Separation of magnesite from ores which also contain calcite or dolomite
US4235708A (en) * 1978-04-19 1980-11-25 Occidental Research Corporation Method of separating a mixture of ore particles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3346111A (en) * 1964-11-24 1967-10-10 Colonial Sugar Refining Co Method of rendering asbestos ore particles differentially fluorescent
US3356211A (en) * 1964-12-07 1967-12-05 Ted C Mathews Separation of ore particles preferentially coated with liquid fluorescent material
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 (en) * 1978-04-19 1979-11-15 Occidental Res Corp Separation of calcium-containing material from ore
WO1979000952A1 (en) * 1978-04-19 1979-11-15 Occidental Res Corp Separation of coal from waste material

Also Published As

Publication number Publication date
ES8205136A1 (en) 1981-11-01
BR8008964A (en) 1981-10-20
ES497438A0 (en) 1981-11-01
GR72502B (en) 1983-11-15
FI803761L (en) 1981-06-06
JPS56501636A (en) 1981-11-12
WO1981001530A1 (en) 1981-06-11
EP0030802A2 (en) 1981-06-24

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT NL SE

PUAL Search report despatched

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AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19831208

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19850531

RIN1 Information on inventor provided before grant (corrected)

Inventor name: DIGIACOMO, PETER MICHAEL

Inventor name: WHITE, WILLIAM R.

Inventor name: PARK, WON CHOON

Inventor name: MCKINLEY, JOHN RICHARD