DE69403611T2 - Verfahren zur herstellung von homogenem magnetit - Google Patents
Verfahren zur herstellung von homogenem magnetitInfo
- Publication number
- DE69403611T2 DE69403611T2 DE69403611T DE69403611T DE69403611T2 DE 69403611 T2 DE69403611 T2 DE 69403611T2 DE 69403611 T DE69403611 T DE 69403611T DE 69403611 T DE69403611 T DE 69403611T DE 69403611 T2 DE69403611 T2 DE 69403611T2
- Authority
- DE
- Germany
- Prior art keywords
- homogenic
- magnetite
- producing
- producing homogenic
- homogenic magnetite
- 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 - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
- C01G49/08—Ferroso-ferric oxide (Fe3O4)
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/083—Magnetic toner particles
- G03G9/0831—Chemical composition of the magnetic components
- G03G9/0833—Oxides
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/10—Developers with toner particles characterised by carrier particles
- G03G9/107—Developers with toner particles characterised by carrier particles having magnetic components
- G03G9/108—Ferrite carrier, e.g. magnetite
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
- G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
- G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
- G11B5/70642—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides
- G11B5/70678—Ferrites
- G11B5/70684—Ferro-ferrioxydes
- G11B5/70689—Magnetite
-
- 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
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/10—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
- H01F1/11—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles
-
- 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
- H01F1/445—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids the magnetic component being a compound, e.g. Fe3O4
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/40—Electric properties
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Iron (AREA)
- Soft Magnetic Materials (AREA)
- Hard Magnetic Materials (AREA)
- Developing Agents For Electrophotography (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14147493A JP2614811B2 (ja) | 1993-05-20 | 1993-05-20 | マグネタイト粉の製造方法 |
JP14147393A JP2614810B2 (ja) | 1993-05-20 | 1993-05-20 | 単相マグネタイト粉の製造方法 |
JP5215872A JP2860930B2 (ja) | 1993-08-31 | 1993-08-31 | 酸化物磁性材料の製造方法 |
PCT/JP1994/000531 WO1994027911A1 (fr) | 1993-05-20 | 1994-03-31 | Procede de fabrication de magnetite homogene |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69403611D1 DE69403611D1 (de) | 1997-07-10 |
DE69403611T2 true DE69403611T2 (de) | 1998-01-22 |
Family
ID=27318257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69403611T Expired - Fee Related DE69403611T2 (de) | 1993-05-20 | 1994-03-31 | Verfahren zur herstellung von homogenem magnetit |
Country Status (10)
Country | Link |
---|---|
US (1) | US5512195A (de) |
EP (1) | EP0653379B1 (de) |
KR (1) | KR100279651B1 (de) |
CN (1) | CN1037836C (de) |
AU (1) | AU6292294A (de) |
BR (1) | BR9405363A (de) |
CA (1) | CA2133642C (de) |
DE (1) | DE69403611T2 (de) |
TW (1) | TW251373B (de) |
WO (1) | WO1994027911A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6461562B1 (en) * | 1999-02-17 | 2002-10-08 | American Scientific Materials Technologies, Lp | Methods of making sintered metal oxide articles |
US7744848B2 (en) * | 2005-11-15 | 2010-06-29 | Pittsburgh Mineral & Environment Technology, Inc. | High purity magnetite formation process and apparatus, and product thereof |
US20090247652A1 (en) * | 2008-03-27 | 2009-10-01 | Headwaters Technology Innovation, Llc | Metal colloids and methods for making the same |
CO6380006A1 (es) | 2011-08-26 | 2012-02-15 | Botero Gabriel Santiago Jaramillo | Proceso para producción de magnetita sintética de alta pureza por oxidación a partir de residuos metálicos y aparato para producirla |
US20140093445A1 (en) * | 2012-09-28 | 2014-04-03 | Carla D. Di Luca | Environmentally friendly system and method for manufacturing iron powder |
US10941047B2 (en) | 2014-02-26 | 2021-03-09 | Gabriel Santiago JARAMILLO BOTERO | Method and apparatus for producing high-purity synthetic magnetite by oxidizing metal waste |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS498496A (de) * | 1972-05-15 | 1974-01-25 | ||
US3929657A (en) * | 1973-09-05 | 1975-12-30 | Xerox Corp | Stoichiometric ferrite carriers |
JPS51110308A (ja) * | 1975-03-24 | 1976-09-29 | Fujitsu Ltd | Sankabutsujikikirokubaitaino seizohoho |
JPS5228697A (en) * | 1975-08-29 | 1977-03-03 | Hitachi Maxell Ltd | Production method of magnetic powder |
JPS52152896A (en) * | 1976-06-15 | 1977-12-19 | Agency Of Ind Science & Technol | Production of activated carbon by pyrolysis of chlorine-contg. polymers |
JPS5522005A (en) * | 1978-07-26 | 1980-02-16 | Toray Industries | Production of water absorbable polyester fiber |
JPS5523218A (en) * | 1978-08-03 | 1980-02-19 | Nat Jutaku Kenzai | Method of coupling frame members |
JPS55154322A (en) * | 1979-05-11 | 1980-12-01 | Tdk Corp | Manufacture of iron oxide |
JPS55154323A (en) * | 1979-05-11 | 1980-12-01 | Tdk Corp | Manufacture of iron oxide |
JPS60458A (ja) * | 1983-06-09 | 1985-01-05 | Kanto Denka Kogyo Kk | 電子写真用キヤリア− |
DE3650169T2 (de) * | 1985-06-05 | 1995-08-03 | Gen Electric | Anlage und Verfahren zur Anzeige von im Inneren eines Festkörpers eingeschlossenen Oberflächenstrukturen. |
JPS62197324A (ja) * | 1986-02-22 | 1987-09-01 | Showa Denko Kk | 強磁性酸化鉄粉末の製造方法 |
JPS62238580A (ja) * | 1986-04-09 | 1987-10-19 | 関東電化工業株式会社 | 電子写真現像剤用キヤリア |
JPS63184764A (ja) * | 1986-09-02 | 1988-07-30 | Kawasaki Steel Corp | 電子写真現像剤用キヤリア及びその製造方法 |
DE8717579U1 (de) * | 1987-07-06 | 1989-03-16 | Siemens Ag, 1000 Berlin Und 8000 Muenchen, De | |
JPH06102695B2 (ja) * | 1988-08-12 | 1994-12-14 | 住友化学工業株式会社 | オレフィン重合体の製造法 |
JP5523218B2 (ja) * | 2010-06-25 | 2014-06-18 | ワールド電子株式会社 | Led照明灯 |
-
1994
- 1994-03-22 TW TW083102501A patent/TW251373B/zh active
- 1994-03-31 EP EP94910579A patent/EP0653379B1/de not_active Expired - Lifetime
- 1994-03-31 CA CA002133642A patent/CA2133642C/en not_active Expired - Fee Related
- 1994-03-31 KR KR1019940704668A patent/KR100279651B1/ko not_active IP Right Cessation
- 1994-03-31 BR BR9405363-4A patent/BR9405363A/pt not_active Application Discontinuation
- 1994-03-31 AU AU62922/94A patent/AU6292294A/en not_active Abandoned
- 1994-03-31 CN CN94190295A patent/CN1037836C/zh not_active Expired - Fee Related
- 1994-03-31 US US08/313,152 patent/US5512195A/en not_active Expired - Lifetime
- 1994-03-31 DE DE69403611T patent/DE69403611T2/de not_active Expired - Fee Related
- 1994-03-31 WO PCT/JP1994/000531 patent/WO1994027911A1/ja active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
EP0653379B1 (de) | 1997-06-04 |
CN1037836C (zh) | 1998-03-25 |
AU6292294A (en) | 1994-12-20 |
WO1994027911A1 (fr) | 1994-12-08 |
DE69403611D1 (de) | 1997-07-10 |
TW251373B (de) | 1995-07-11 |
KR100279651B1 (ko) | 2001-03-02 |
CA2133642C (en) | 1999-07-06 |
CA2133642A1 (en) | 1994-11-21 |
EP0653379A1 (de) | 1995-05-17 |
BR9405363A (pt) | 1999-08-31 |
KR950702173A (ko) | 1995-06-19 |
US5512195A (en) | 1996-04-30 |
CN1109683A (zh) | 1995-10-04 |
EP0653379A4 (de) | 1996-02-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69426870T2 (de) | Verfahren zur herstellung von aminochinolinen | |
DE69232066T2 (de) | Verfahren zur herstellung von fullerenen | |
DE69228242D1 (de) | Verfahren zur herstellung von pentafluorethan | |
DE69215070T2 (de) | Verfahren zur herstellung von 3-dpa-lacton | |
DE59305905D1 (de) | Verfahren zur herstellung von n-alkanoyl-polyhydroxyalkylaminen | |
DE69414253D1 (de) | Verfahren zur herstellung von oximin | |
DE69327650D1 (de) | Verfahren zur herstellung von chlordioxid | |
DE69216643T2 (de) | Verfahren zur herstellung von chlordioxid | |
DE69126141T2 (de) | Verfahren zur herstellung von 4-hydroxy-l-prolin | |
DE59401406D1 (de) | Verfahren zur herstellung von naphtalocyaninen | |
DE69216977D1 (de) | Verfahren zur herstellung von hydrochlormethanen | |
DE69403611D1 (de) | Verfahren zur herstellung von homogenem magnetit | |
DE59404478D1 (de) | Verfahren zur herstellung von polyvinylpyridin-n-oxiden | |
DE69324697D1 (de) | Verfahren zur herstellung von dinitrotoluol | |
DE69415648D1 (de) | Verfahren zur herstellung von polyfluoropropionylhalogeniden | |
DE69418472D1 (de) | Verfahren zur herstellung von goethit | |
DE69318307T2 (de) | Verfahren zur herstellung von difluormethan | |
DE69419516D1 (de) | Verfahren zur herstellung von hexafluorocyclobuten und verfahren zur herstellung von hexafluorocyclobutan | |
DE69411012T2 (de) | Verfahren zur herstellung von cumenhydroperoxyd | |
DE69315049T2 (de) | Verfahren zur herstellung von alkadienolen | |
DE69308599T2 (de) | Verfahren zur herstellung von 2-paradioxanonen | |
ATA235592A (de) | Verfahren zur herstellung von arylhydantoinen | |
ATA13292A (de) | Verfahren zur herstellung von ceftriaxondinatrium-salzhemiheptahydrat | |
DE69230283D1 (de) | Verfahren zur herstellung von spiroketalen | |
DE59405861D1 (de) | Verfahren zur herstellung von sinterteilen |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |