BR9006242A - PARTICULAR MATERIAL SEPARATION PROCESS AND APPLIANCE ACCORDING TO THE ELECTRICAL CONDUCTIVITY OF THE MATERIAL PARTICLES - Google Patents

PARTICULAR MATERIAL SEPARATION PROCESS AND APPLIANCE ACCORDING TO THE ELECTRICAL CONDUCTIVITY OF THE MATERIAL PARTICLES

Info

Publication number
BR9006242A
BR9006242A BR909006242A BR9006242A BR9006242A BR 9006242 A BR9006242 A BR 9006242A BR 909006242 A BR909006242 A BR 909006242A BR 9006242 A BR9006242 A BR 9006242A BR 9006242 A BR9006242 A BR 9006242A
Authority
BR
Brazil
Prior art keywords
particles
electrical conductivity
separation process
appliance according
material particles
Prior art date
Application number
BR909006242A
Other languages
Portuguese (pt)
Inventor
Edwin Harm Roos
Original Assignee
De Beers Ind Diamond
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 Ind Diamond filed Critical De Beers Ind Diamond
Publication of BR9006242A publication Critical patent/BR9006242A/en

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)
  • Load-Engaging Elements For Cranes (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Non-Insulated Conductors (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Glass Compositions (AREA)
  • Mechanical Treatment Of Semiconductor (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>
BR909006242A 1989-12-07 1990-12-07 PARTICULAR MATERIAL SEPARATION PROCESS AND APPLIANCE ACCORDING TO THE ELECTRICAL CONDUCTIVITY OF THE MATERIAL PARTICLES BR9006242A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA899361 1989-12-07

Publications (1)

Publication Number Publication Date
BR9006242A true BR9006242A (en) 1991-09-24

Family

ID=25579930

Family Applications (1)

Application Number Title Priority Date Filing Date
BR909006242A BR9006242A (en) 1989-12-07 1990-12-07 PARTICULAR MATERIAL SEPARATION PROCESS AND APPLIANCE ACCORDING TO THE ELECTRICAL CONDUCTIVITY OF THE MATERIAL PARTICLES

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
DE69009948D1 (en) 1994-07-21
AU6780790A (en) 1991-06-13
EP0431965B1 (en) 1994-06-15
EP0431965A2 (en) 1991-06-12
CA2031663A1 (en) 1991-06-08
AU629073B2 (en) 1992-09-24
DE69009948T2 (en) 1994-11-03
JPH05345146A (en) 1993-12-27
EP0431965A3 (en) 1991-08-21
ATE107194T1 (en) 1994-07-15

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Legal Events

Date Code Title Description
FB19 Grant procedure suspended (art. 19)
FF Decision: intention to grant
KD Notifcation of receipt (letter patent)
FG Letter patent granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 07/12/2005