FR2662539B1 - PROCESS FOR OBTAINING FINELY DIVIDED MAGNETIC MEDIA BY CONTROLLED MODIFICATION OF THE SURFACE OF LOADED MAGNETIC PRECURSOR PARTICLES AND PRODUCTS OBTAINED. - Google Patents

PROCESS FOR OBTAINING FINELY DIVIDED MAGNETIC MEDIA BY CONTROLLED MODIFICATION OF THE SURFACE OF LOADED MAGNETIC PRECURSOR PARTICLES AND PRODUCTS OBTAINED.

Info

Publication number
FR2662539B1
FR2662539B1 FR909006484A FR9006484A FR2662539B1 FR 2662539 B1 FR2662539 B1 FR 2662539B1 FR 909006484 A FR909006484 A FR 909006484A FR 9006484 A FR9006484 A FR 9006484A FR 2662539 B1 FR2662539 B1 FR 2662539B1
Authority
FR
France
Prior art keywords
finely divided
products obtained
precursor particles
controlled modification
magnetic media
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 - Lifetime
Application number
FR909006484A
Other languages
French (fr)
Other versions
FR2662539A1 (en
Inventor
Rene Massart
Sophie Neveu
Valerie Cabuil-Marchal
Remy Brossel
Jean-Marc Fruchart
Tidjani Bouchami
Jacky Roger
Agnes Bee-Debras
Jean-Noel Pons
Madeleine Carpentier
Massart Rene
Neveu Sophie
Cabuil-Marchal Valerie
Brossel Remy
Fruchart Jean-Marc
Bouchami Tidjani
Roger Jacky
Bee-Debras Agnes
Pons Jean-Noel
Carpentier Madeleine
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.)
Centre National de la Recherche Scientifique CNRS
Original Assignee
Centre National de la Recherche Scientifique CNRS
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 Centre National de la Recherche Scientifique CNRS filed Critical Centre National de la Recherche Scientifique CNRS
Priority to FR909006484A priority Critical patent/FR2662539B1/en
Priority to DE4116093A priority patent/DE4116093A1/en
Priority to GB9111026A priority patent/GB2244987A/en
Priority to JP3147859A priority patent/JPH04261002A/en
Publication of FR2662539A1 publication Critical patent/FR2662539A1/en
Application granted granted Critical
Publication of FR2662539B1 publication Critical patent/FR2662539B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B03C1/005—Pretreatment specially adapted for magnetic separation
    • B03C1/01—Pretreatment specially adapted for magnetic separation by addition of magnetic adjuvants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/33—Electric or magnetic properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Soft Magnetic Materials (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Hard Magnetic Materials (AREA)
FR909006484A 1990-05-23 1990-05-23 PROCESS FOR OBTAINING FINELY DIVIDED MAGNETIC MEDIA BY CONTROLLED MODIFICATION OF THE SURFACE OF LOADED MAGNETIC PRECURSOR PARTICLES AND PRODUCTS OBTAINED. Expired - Lifetime FR2662539B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR909006484A FR2662539B1 (en) 1990-05-23 1990-05-23 PROCESS FOR OBTAINING FINELY DIVIDED MAGNETIC MEDIA BY CONTROLLED MODIFICATION OF THE SURFACE OF LOADED MAGNETIC PRECURSOR PARTICLES AND PRODUCTS OBTAINED.
DE4116093A DE4116093A1 (en) 1990-05-23 1991-05-17 METHOD FOR OBTAINING FINE DISTRIBUTED MAGNETIC CARRIERS THROUGH CONTROLLED MODIFICATION OF THE SURFACE OF MAGNETICALLY CHARGED PARTICLES, AND PRODUCTS RECEIVED THEREOF
GB9111026A GB2244987A (en) 1990-05-23 1991-05-22 Small particles
JP3147859A JPH04261002A (en) 1990-05-23 1991-05-23 Method for fabricating magnetic carrier wherein magnetic particle whose precursor is charged is reformed under control and finely divided, and material obtained by this method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR909006484A FR2662539B1 (en) 1990-05-23 1990-05-23 PROCESS FOR OBTAINING FINELY DIVIDED MAGNETIC MEDIA BY CONTROLLED MODIFICATION OF THE SURFACE OF LOADED MAGNETIC PRECURSOR PARTICLES AND PRODUCTS OBTAINED.

Publications (2)

Publication Number Publication Date
FR2662539A1 FR2662539A1 (en) 1991-11-29
FR2662539B1 true FR2662539B1 (en) 1994-09-30

Family

ID=9396912

Family Applications (1)

Application Number Title Priority Date Filing Date
FR909006484A Expired - Lifetime FR2662539B1 (en) 1990-05-23 1990-05-23 PROCESS FOR OBTAINING FINELY DIVIDED MAGNETIC MEDIA BY CONTROLLED MODIFICATION OF THE SURFACE OF LOADED MAGNETIC PRECURSOR PARTICLES AND PRODUCTS OBTAINED.

Country Status (4)

Country Link
JP (1) JPH04261002A (en)
DE (1) DE4116093A1 (en)
FR (1) FR2662539B1 (en)
GB (1) GB2244987A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19516323C2 (en) * 1995-04-27 1997-02-27 Dirk Dipl Chem Guenther Process for the preparation of magnetizable dispersions and their use
FR2736197B1 (en) * 1995-06-29 1997-09-12 Univ Paris Curie MAGNETIC NANOPARTICLES COUPLED WITH ANNEXIN AND THEIR USE
DE10025964A1 (en) * 2000-05-25 2001-12-06 Henkel Kgaa Heterogeneous catalyst based on magnetic carrier, useful in oxidation of organic compounds, e.g. epoxidation, allows easy catalyst separation
JP2005060221A (en) * 2003-07-31 2005-03-10 Rikogaku Shinkokai Composite material of organic substance and ferrite, and its production method
DE102005016873A1 (en) * 2005-04-12 2006-10-19 Magforce Nanotechnologies Ag New nano-particle useful for production of composition to treatment and/or prophylaxis of proliferative illnesses, cancer and bacterial infections, where nano-particle is bonded therapeutic substance
JP2009517463A (en) * 2005-12-02 2009-04-30 インダストリー−アカデミック コーペレイション ファウンデイション， ヨンセイ ユニバーシティ MRI contrast agent containing water-soluble manganese oxide nanoparticles
CA2684964C (en) 2007-04-25 2017-05-16 Universite Laval Magnetically deformable ferrofluids and mirrors
ATE546221T1 (en) * 2007-12-13 2012-03-15 Sven Oscarsson PARTIAL DERIVATIZATION OF PARTICLES
CN106111323B (en) * 2016-08-29 2018-03-09 上海交通大学 The half reverse-flow concentration equipment for reclaiming Magnaglo in ultra-fine mixed-powder

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3052644A (en) * 1959-01-12 1962-09-04 Du Pont Pigment composition and process
GB1361003A (en) * 1970-06-15 1974-07-24 Avco Corp Separation of a multiphase liquid-liquid mixture
US3981844A (en) * 1975-06-30 1976-09-21 Ibm Stable emulsion and method for preparation thereof
FR2461521A1 (en) * 1979-07-20 1981-02-06 Anvar MAGNETIC FLUIDS, IN PARTICULAR FERROFLUIDS, AND PROCESS FOR OBTAINING THEM
US4356098A (en) * 1979-11-08 1982-10-26 Ferrofluidics Corporation Stable ferrofluid compositions and method of making same
US4430239A (en) * 1981-10-21 1984-02-07 Ferrofluidics Corporation Ferrofluid composition and method of making and using same
US4452773A (en) * 1982-04-05 1984-06-05 Canadian Patents And Development Limited Magnetic iron-dextran microspheres
US4834898A (en) * 1988-03-14 1989-05-30 Board Of Control Of Michigan Technological University Reagents for magnetizing nonmagnetic materials

Also Published As

Publication number Publication date
DE4116093A1 (en) 1991-11-28
GB2244987A (en) 1991-12-18
FR2662539A1 (en) 1991-11-29
JPH04261002A (en) 1992-09-17
GB9111026D0 (en) 1991-07-17

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