GB1220420A - Improvements in the sizing of fine particle ferromagnetic materials - Google Patents

Improvements in the sizing of fine particle ferromagnetic materials

Info

Publication number
GB1220420A
GB1220420A GB7875/69A GB787569A GB1220420A GB 1220420 A GB1220420 A GB 1220420A GB 7875/69 A GB7875/69 A GB 7875/69A GB 787569 A GB787569 A GB 787569A GB 1220420 A GB1220420 A GB 1220420A
Authority
GB
United Kingdom
Prior art keywords
screen
powder
ferromagnetic materials
sizing
fine particle
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
Application number
GB7875/69A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1220420A publication Critical patent/GB1220420A/en
Expired 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
    • B03C1/04—Magnetic separation acting directly on the substance being separated with the material carriers in the form of trays or with tables
    • B03C1/08—Magnetic separation acting directly on the substance being separated with the material carriers in the form of trays or with tables with non-movable magnets
    • 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
    • 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
    • B03C1/04—Magnetic separation acting directly on the substance being separated with the material carriers in the form of trays or with tables

Abstract

1,220,420. Screening magnetic materials. GENERAL ELECTRIC CO. 13 Feb., 1969 [28 Feb., 1968], No. 7875/69. Heading B2H. Ferromagnetic materials (e.g. Co 5 Sm) are ground to a powder and placed on a screen. The screen is subjected to a magnetic field of constant or reversing polarity as the powder is agitated. This has the effect of breaking up conglomerations of cohering fine magnetic powder so that the fine powder produced passes through the screen. The particles that remain on the screen are ground again and subjected to a further screening operation.
GB7875/69A 1968-02-28 1969-02-13 Improvements in the sizing of fine particle ferromagnetic materials Expired GB1220420A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70878468A 1968-02-28 1968-02-28

Publications (1)

Publication Number Publication Date
GB1220420A true GB1220420A (en) 1971-01-27

Family

ID=24847180

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7875/69A Expired GB1220420A (en) 1968-02-28 1969-02-13 Improvements in the sizing of fine particle ferromagnetic materials

Country Status (7)

Country Link
US (1) US3516612A (en)
BE (1) BE729015A (en)
DE (1) DE1909451A1 (en)
ES (1) ES363819A1 (en)
FR (1) FR2002822A1 (en)
GB (1) GB1220420A (en)
NL (1) NL6902823A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3844850A (en) * 1972-04-17 1974-10-29 Gen Electric Large grain cobalt-samarium intermetallic permanent magnet material and process
US3838773A (en) * 1973-03-16 1974-10-01 Massachusetts Inst Technology Vibrating-matrix magnetic separators
DE3306773A1 (en) * 1983-02-25 1984-08-30 Bayer Ag, 5090 Leverkusen NON-DUSTING MAGNETIC PIGMENTS, METHOD FOR THE PRODUCTION AND USE THEREOF
US4452911A (en) * 1983-08-10 1984-06-05 Hri, Inc. Frangible catalyst pretreatment method for use in hydrocarbon hydrodemetallization process
US7056400B1 (en) 2003-04-22 2006-06-06 R. J. Lee Group, Inc. Method of separating superalloy metal powder from admixed contaminants
US7153377B2 (en) * 2004-02-02 2006-12-26 R. J. Lee Group, Inc. Method of separating admixed contaminants from superalloy metal powder

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2822089A (en) * 1949-12-28 1958-02-04 Bauer Bros Co Grate magnet
US2721035A (en) * 1952-09-15 1955-10-18 Frank E Lankford Apparatus for separating steel from slag
US3375925A (en) * 1966-10-18 1968-04-02 Carpco Res & Engineering Inc Magnetic separator

Also Published As

Publication number Publication date
NL6902823A (en) 1969-09-01
DE1909451A1 (en) 1969-09-11
ES363819A1 (en) 1970-12-16
FR2002822A1 (en) 1969-10-31
BE729015A (en) 1969-08-01
US3516612A (en) 1970-06-23

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