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FR2253567A1 - Selective magnetic separation - of weakly magnetisable minerals involves magnets with superconducting coils - Google Patents

Selective magnetic separation - of weakly magnetisable minerals involves magnets with superconducting coils

Info

Publication number
FR2253567A1
FR2253567A1 FR7439620A FR7439620A FR2253567A1 FR 2253567 A1 FR2253567 A1 FR 2253567A1 FR 7439620 A FR7439620 A FR 7439620A FR 7439620 A FR7439620 A FR 7439620A FR 2253567 A1 FR2253567 A1 FR 2253567A1
Authority
FR
France
Prior art keywords
field
matl
magnetisable
superconducting coils
magnets
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
FR7439620A
Other languages
French (fr)
Other versions
FR2253567B3 (en
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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 BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Publication of FR2253567A1 publication Critical patent/FR2253567A1/en
Application granted granted Critical
Publication of FR2253567B3 publication Critical patent/FR2253567B3/fr
Granted 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
    • B03C1/035—Open gradient magnetic separators, i.e. separators in which the gap is unobstructed, characterised by the configuration of the gap
    • B03C1/0355—Open gradient magnetic separators, i.e. separators in which the gap is unobstructed, characterised by the configuration of the gap using superconductive coils

Landscapes

  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

Selective magnetic sepn. of weakly magnetisable matls., e.g. rare minerals , is achieved by passing suitably pretreated matl. (ground, dried, sieved, etc.) to the magnet separator where magnetisable components exceeding a threshold in magnetisability are deflected to be discharged into special containers while the remaining matl. passes through the field to other receptacles. To increase field strength, the magnetic field is generated in the air gap between superconducting coils. The force acting on the matl. is increased by spatial configuration and electrical connection of several coils into multi-polar arrangements to achieve field inhomogenisation with formation of field gradient. Local force effiency is further increased by super-imposing a practically homogeneous magnetic field on the multipolar fields.
FR7439620A 1973-12-07 1974-12-04 Selective magnetic separation - of weakly magnetisable minerals involves magnets with superconducting coils Granted FR2253567A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1717173A CH565594A5 (en) 1973-12-07 1973-12-07

Publications (2)

Publication Number Publication Date
FR2253567A1 true FR2253567A1 (en) 1975-07-04
FR2253567B3 FR2253567B3 (en) 1978-06-30

Family

ID=4423318

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7439620A Granted FR2253567A1 (en) 1973-12-07 1974-12-04 Selective magnetic separation - of weakly magnetisable minerals involves magnets with superconducting coils

Country Status (4)

Country Link
CH (1) CH565594A5 (en)
DE (1) DE2401026A1 (en)
FR (1) FR2253567A1 (en)
IT (1) IT1026793B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2550104A1 (en) * 1983-08-03 1985-02-08 Commissariat Energie Atomique MAGNETIC SORTING DEVICE THAT CAN BE USED TO MEASURE THE MAGNETIC SUSCEPTIBILITY OF SOLID SUBSTANCES

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3336255A1 (en) * 1983-10-05 1985-04-18 Krupp Polysius Ag, 4720 Beckum DEVICE FOR SEPARATING FERROMAGNETIC PARTICLES FROM A TURBIDITY
AT391280B (en) * 1984-05-22 1990-09-10 Elin Union Ag MAGNETIC CUTTER II

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2550104A1 (en) * 1983-08-03 1985-02-08 Commissariat Energie Atomique MAGNETIC SORTING DEVICE THAT CAN BE USED TO MEASURE THE MAGNETIC SUSCEPTIBILITY OF SOLID SUBSTANCES
US4608155A (en) * 1983-08-03 1986-08-26 Commissariat A L'energie Atomique Magnetic separator

Also Published As

Publication number Publication date
DE2401026A1 (en) 1975-06-12
IT1026793B (en) 1978-10-20
FR2253567B3 (en) 1978-06-30
CH565594A5 (en) 1975-08-29

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Legal Events

Date Code Title Description
ST Notification of lapse