DE3576811D1 - Verfahren zur herstellung von ein eisencarbid enthaltenden nadelfoermigen teilchen. - Google Patents
Verfahren zur herstellung von ein eisencarbid enthaltenden nadelfoermigen teilchen.Info
- Publication number
- DE3576811D1 DE3576811D1 DE8585113613T DE3576811T DE3576811D1 DE 3576811 D1 DE3576811 D1 DE 3576811D1 DE 8585113613 T DE8585113613 T DE 8585113613T DE 3576811 T DE3576811 T DE 3576811T DE 3576811 D1 DE3576811 D1 DE 3576811D1
- Authority
- DE
- Germany
- Prior art keywords
- particles containing
- shaped particles
- iron carbide
- producing needle
- needle
- 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
-
- 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
-
- 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
- G11B5/70652—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 gamma - Fe2 O3
- G11B5/70668—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 gamma - Fe2 O3 containing a dopant
-
- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/20—Carbon compounds
- B01J27/22—Carbides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/90—Carbides
- C01B32/907—Oxycarbides; Sulfocarbides; Mixture of carbides
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
-
- 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
- C01P2006/42—Magnetic properties
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Power Engineering (AREA)
- Carbon And Carbon Compounds (AREA)
- Compounds Of Iron (AREA)
- Hard Magnetic Materials (AREA)
- Magnetic Record Carriers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59224966A JPS61106408A (ja) | 1984-10-25 | 1984-10-25 | 炭化鉄を含有する針状粒子の製造法 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3576811D1 true DE3576811D1 (de) | 1990-05-03 |
Family
ID=16821994
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8585113613T Expired - Fee Related DE3576811D1 (de) | 1984-10-25 | 1985-10-25 | Verfahren zur herstellung von ein eisencarbid enthaltenden nadelfoermigen teilchen. |
Country Status (6)
Country | Link |
---|---|
US (1) | US4668414A (de) |
EP (1) | EP0180162B1 (de) |
JP (1) | JPS61106408A (de) |
KR (1) | KR890003867B1 (de) |
CA (1) | CA1273471A (de) |
DE (1) | DE3576811D1 (de) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5151206A (en) * | 1983-04-25 | 1992-09-29 | Daikin Industries, Ltd. | Acicular iron carbide particulate material and process for producing same |
US4842759A (en) * | 1983-04-25 | 1989-06-27 | Daikin Industries, Ltd. | Acicular process for producing particulate material |
JPS61154110A (ja) * | 1984-12-27 | 1986-07-12 | Mitsui Toatsu Chem Inc | 磁気記録用針状性炭化鉄微粒子及びその製造方法 |
US4900464A (en) * | 1985-12-24 | 1990-02-13 | Daikin Industries Ltd. | Particles containing iron carbide |
JPS6395104A (ja) * | 1986-10-06 | 1988-04-26 | Daikin Ind Ltd | Fe↓7C↓3を主成分とする炭化鉄を含有する粒子、その製法及び用途 |
US5006395A (en) * | 1987-05-12 | 1991-04-09 | Matsushita Electric Industrial Co., Ltd. | Iron carbide thin film magnetic recording medium |
JPH0729763B2 (ja) * | 1987-10-13 | 1995-04-05 | ダイキン工業株式会社 | 炭化鉄微粒子及びその製造法 |
JPH0230626A (ja) * | 1988-04-28 | 1990-02-01 | Daikin Ind Ltd | 炭化鉄微粒子及びその製造法 |
US5552073A (en) * | 1988-09-26 | 1996-09-03 | Seisan Kaihatsu Kagaku Kenkyusho | Ferromagnetic fine particles of ε iron carbide and method for producing the same |
US5040552A (en) * | 1988-12-08 | 1991-08-20 | Philip Morris Incorporated | Metal carbide heat source |
JP2773330B2 (ja) * | 1989-06-16 | 1998-07-09 | 東芝ライテック株式会社 | 平面形蛍光ランプ装置、液晶表示装置および機器 |
US5188130A (en) | 1989-11-29 | 1993-02-23 | Philip Morris, Incorporated | Chemical heat source comprising metal nitride, metal oxide and carbon |
JPH085651B2 (ja) * | 1990-07-02 | 1996-01-24 | ダイキン工業株式会社 | 炭化鉄微粒子の製造方法 |
US5247949A (en) * | 1991-01-09 | 1993-09-28 | Philip Morris Incorporated | Method for producing metal carbide heat sources |
US5146934A (en) * | 1991-05-13 | 1992-09-15 | Philip Morris Incorporated | Composite heat source comprising metal carbide, metal nitride and metal |
US5246018A (en) * | 1991-07-19 | 1993-09-21 | Philip Morris Incorporated | Manufacturing of composite heat sources containing carbon and metal species |
KR960016463B1 (ko) * | 1992-01-22 | 1996-12-12 | 다이킨 고교 가부시키가이샤 | 금속철, 탄화철 및 탄소를 함유하는 침상 미립자, 그 제조법, 그것을 함유하는 자성도료 조성물 및 자기기록매체 |
EP0641738B1 (de) * | 1993-02-19 | 1997-07-30 | Daikin Industries, Limited | Nadelförmige feinpartikel mit oberflächenbeschichtung, methode zu ihrer herstellung und verwendung derselben |
US5869018A (en) * | 1994-01-14 | 1999-02-09 | Iron Carbide Holdings, Ltd. | Two step process for the production of iron carbide from iron oxide |
JP2727436B2 (ja) | 1995-05-31 | 1998-03-11 | 川崎重工業株式会社 | 鉄カーバイドの製造方法及び製造装置 |
AU750751B2 (en) | 1998-03-31 | 2002-07-25 | Iron Carbide Holdings, Ltd | Process for the production of iron carbide from iron oxide using external sources of carbon monoxide |
TWI269325B (en) * | 2002-03-07 | 2006-12-21 | Tdk Corp | Laminated electronic component |
JP4834852B2 (ja) * | 2005-01-06 | 2011-12-14 | Dowaエレクトロニクス株式会社 | 金属磁性粉末及びこれを用いた磁気記録媒体 |
JP4826360B2 (ja) * | 2006-06-27 | 2011-11-30 | トヨタ自動車株式会社 | 車高調整装置及び車高調整プログラム |
CN111604075B (zh) * | 2020-06-28 | 2023-07-25 | 江苏新瀚新材料股份有限公司 | 一种用于傅克酰基化反应的碳负载碳化铁催化剂及其制备方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2535042A (en) * | 1950-01-05 | 1950-12-26 | Ernst M Cohn | Preparation of iron carbides |
US3572993A (en) * | 1968-07-23 | 1971-03-30 | Du Pont | Ultrafine,nonpyrophoric,chi-iron carbide having high coercivity |
US3885023A (en) * | 1973-02-15 | 1975-05-20 | Phillips Petroleum Co | Preparation of iron carbide (Fe{hd 3{b C) |
JPS5310279B2 (de) * | 1974-03-01 | 1978-04-12 | ||
DE2735316C3 (de) * | 1977-08-05 | 1981-01-29 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Herstellung von nadeiförmigen, ferrimagnetischen Eisenoxiden |
DE2935444A1 (de) * | 1979-09-01 | 1981-03-19 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von nadelfoermigen ferrimagnetischem eisenoxid |
DE3469820D1 (en) * | 1983-04-25 | 1988-04-14 | Daikin Ind Ltd | Acicular particulate material containing iron carbide |
-
1984
- 1984-10-25 JP JP59224966A patent/JPS61106408A/ja active Granted
-
1985
- 1985-10-22 US US06/790,178 patent/US4668414A/en not_active Expired - Lifetime
- 1985-10-23 KR KR1019850007819A patent/KR890003867B1/ko not_active IP Right Cessation
- 1985-10-23 CA CA000493647A patent/CA1273471A/en not_active Expired - Fee Related
- 1985-10-25 DE DE8585113613T patent/DE3576811D1/de not_active Expired - Fee Related
- 1985-10-25 EP EP85113613A patent/EP0180162B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS647008B2 (de) | 1989-02-07 |
CA1273471A (en) | 1990-09-04 |
EP0180162A3 (en) | 1987-10-14 |
KR890003867B1 (ko) | 1989-10-05 |
US4668414A (en) | 1987-05-26 |
KR860003631A (ko) | 1986-05-28 |
EP0180162A2 (de) | 1986-05-07 |
EP0180162B1 (de) | 1990-03-28 |
JPS61106408A (ja) | 1986-05-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3576811D1 (de) | Verfahren zur herstellung von ein eisencarbid enthaltenden nadelfoermigen teilchen. | |
DE3581293D1 (de) | Verfahren zur herstellung von ultrafeinen keramikpartikeln. | |
DE3586005D1 (de) | Verfahren zur herstellung von ultrafeinen keramischen partikeln. | |
DE3581200D1 (de) | Verfahren zur herstellung von 1-hydroxyvitamin-d-verbindungen. | |
DE3583050D1 (de) | Verfahren zur mikrophotometrie von mikroskopischen prueflingen. | |
DE3585687D1 (de) | Verfahren zur herstellung von 1-hydroxyvitamin-d-verbindungen. | |
DE3586638D1 (de) | Verfahren zur herstellung von vanadylphthalocyanin. | |
DE3578062D1 (de) | Verfahren zur herstellung von iodbenzol. | |
DE3582479D1 (de) | Verfahren zur herstellung von polyester. | |
DE3582902D1 (de) | Verfahren zur herstellung von pyrrolochinolinchinon. | |
DE3580736D1 (de) | Verfahren zur herstellung von polyamiden. | |
DE3580626D1 (de) | Verfahren zur herstellung von schleifmitteln. | |
DE3582015D1 (de) | Verfahren zur herstellung von polyester. | |
DE3585004D1 (de) | Verfahren zur herstellung von russ. | |
DE3584539D1 (de) | Verfahren zur herstellung von kohlenstoffasern. | |
DE3484036D1 (de) | Verfahren zur herstellung von feinen partikeln. | |
DE3582000D1 (de) | Verfahren zur herstellung von kohlenwasserstoffenmischungen. | |
DE3587248D1 (de) | Verfahren zur herstellung von feinem bleititanatpulver. | |
DE3585219D1 (de) | Verfahren zur herstellung von n-formyl-alpha-aspartyl-phenylalaninen. | |
DE3576817D1 (de) | Verfahren zur herstellung von aminen. | |
DE3580943D1 (de) | Verfahren zur herstellung von vorgeschaeumten partikeln. | |
DE3575133D1 (de) | Verfahren zur herstellung von 1-alkyl- oder 1-cycloalkylpiperazinen. | |
DE3584754D1 (de) | Verfahren zur herstellung von arylalkylketonen. | |
DE3580634D1 (de) | Verfahren zur herstellung von russ. | |
DE3583047D1 (de) | Verfahren zur herstellung von ferromagnetischem metallpulver. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8328 | Change in the person/name/address of the agent |
Free format text: BARZ, P., DIPL.-CHEM. DR.RER.NAT., PAT.-ANW., 80803 MUENCHEN |
|
8339 | Ceased/non-payment of the annual fee |