AU6780790A - Material separation - Google Patents

Material separation

Info

Publication number
AU6780790A
AU6780790A AU67807/90A AU6780790A AU6780790A AU 6780790 A AU6780790 A AU 6780790A AU 67807/90 A AU67807/90 A AU 67807/90A AU 6780790 A AU6780790 A AU 6780790A AU 6780790 A AU6780790 A AU 6780790A
Authority
AU
Australia
Prior art keywords
particles
magnetic field
conductivities
material separation
magnetic
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.)
Granted
Application number
AU67807/90A
Other versions
AU629073B2 (en
Inventor
Edwin Harm Roos
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.)
De Beers Industrial Diamond Division Pty Ltd
Original Assignee
De Beers Industrial Diamond Division Pty Ltd
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 De Beers Industrial Diamond Division Pty Ltd filed Critical De Beers Industrial Diamond Division Pty Ltd
Publication of AU6780790A publication Critical patent/AU6780790A/en
Application granted granted Critical
Publication of AU629073B2 publication Critical patent/AU629073B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/23—Magnetic separation acting directly on the substance being separated with material carried by oscillating fields; with material carried by travelling fields, e.g. generated by stationary magnetic coils; Eddy-current separators, e.g. sliding ramp
    • 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
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/005—Pretreatment specially adapted for magnetic separation

Landscapes

  • Physical Or Chemical Processes And Apparatus (AREA)
  • Soft Magnetic Materials (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Glass Compositions (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Non-Insulated Conductors (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)

Abstract

Non-magnetic, conductive particles are separated from one another on the basis of their respective electrical conductivities. This is achieved by irradiating the particles with microwave or radio frequency electromagnetic radiation and simultaneously subjecting the particles to a magnetic field. The eddy currents induced in the particles by the electromagnetic irradiation interact with the magnetic field to cause movements of the particles which are dependent on their conductivities. <IMAGE>
AU67807/90A 1989-12-07 1990-12-06 Material separation Ceased AU629073B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA899361 1989-12-07
ZA89/9361 1989-12-07

Publications (2)

Publication Number Publication Date
AU6780790A true AU6780790A (en) 1991-06-13
AU629073B2 AU629073B2 (en) 1992-09-24

Family

ID=25579930

Family Applications (1)

Application Number Title Priority Date Filing Date
AU67807/90A Ceased AU629073B2 (en) 1989-12-07 1990-12-06 Material separation

Country Status (7)

Country Link
EP (1) EP0431965B1 (en)
JP (1) JPH05345146A (en)
AT (1) ATE107194T1 (en)
AU (1) AU629073B2 (en)
BR (1) BR9006242A (en)
CA (1) CA2031663A1 (en)
DE (1) DE69009948T2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ243065A (en) 1991-06-13 1995-07-26 Lundbeck & Co As H Piperidine derivatives and pharmaceutical compositions

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3463310A (en) * 1968-02-27 1969-08-26 Us Interior Separation method
DE2336035A1 (en) * 1973-07-14 1975-02-06 Rosenthal Technik Ag Magnetic separation of minerals - under irradiation by high frequency in fluidised bed gives improved uniformity and selectivity
US4137156A (en) * 1975-03-21 1979-01-30 Occidental Petroleum Corporation Separation of non-magnetic conductive metals
JPS5274167A (en) * 1975-12-16 1977-06-21 Agency Of Ind Science & Technol Recovery of metals out of solid waste pieces
US4842721A (en) * 1982-10-19 1989-06-27 Raytheon Company Transversely inclined ramp separator

Also Published As

Publication number Publication date
CA2031663A1 (en) 1991-06-08
EP0431965B1 (en) 1994-06-15
DE69009948T2 (en) 1994-11-03
EP0431965A2 (en) 1991-06-12
BR9006242A (en) 1991-09-24
JPH05345146A (en) 1993-12-27
AU629073B2 (en) 1992-09-24
ATE107194T1 (en) 1994-07-15
EP0431965A3 (en) 1991-08-21
DE69009948D1 (en) 1994-07-21

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