GB1481711A - Spherical void-free particle formation in spray-dried ferrites - Google Patents
Spherical void-free particle formation in spray-dried ferritesInfo
- Publication number
- GB1481711A GB1481711A GB49374/74A GB4937474A GB1481711A GB 1481711 A GB1481711 A GB 1481711A GB 49374/74 A GB49374/74 A GB 49374/74A GB 4937474 A GB4937474 A GB 4937474A GB 1481711 A GB1481711 A GB 1481711A
- Authority
- GB
- United Kingdom
- Prior art keywords
- slurry
- ferrites
- added
- ferrite
- bead
- 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
Links
- 229910000859 α-Fe Inorganic materials 0.000 title abstract 6
- 239000002245 particle Substances 0.000 title abstract 4
- 230000015572 biosynthetic process Effects 0.000 title 1
- 239000002002 slurry Substances 0.000 abstract 7
- 229910044991 metal oxide Inorganic materials 0.000 abstract 4
- 150000004706 metal oxides Chemical class 0.000 abstract 4
- 239000011324 bead Substances 0.000 abstract 3
- 239000007788 liquid Substances 0.000 abstract 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract 2
- 229910003962 NiZn Inorganic materials 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 150000007513 acids Chemical class 0.000 abstract 1
- 238000005054 agglomeration Methods 0.000 abstract 1
- 230000002776 aggregation Effects 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- 239000012876 carrier material Substances 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
- 238000001694 spray drying Methods 0.000 abstract 1
Classifications
-
- 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
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
- B01J2/04—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a gaseous medium
-
- 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
- G03G9/1075—Structural characteristics of the carrier particles, e.g. shape or crystallographic structure
-
- 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
- G03G9/1085—Ferrite carrier, e.g. magnetite with non-ferrous metal oxide, e.g. MgO-Fe2O3
-
- 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
- H01F1/12—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 soft-magnetic materials
- H01F1/34—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 soft-magnetic materials non-metallic substances, e.g. ferrites
- H01F1/36—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 soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Developing Agents For Electrophotography (AREA)
- Compounds Of Iron (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Catalysts (AREA)
- Magnetic Ceramics (AREA)
- Soft Magnetic Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US42414673A | 1973-12-12 | 1973-12-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1481711A true GB1481711A (en) | 1977-08-03 |
Family
ID=23681631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB49374/74A Expired GB1481711A (en) | 1973-12-12 | 1974-11-14 | Spherical void-free particle formation in spray-dried ferrites |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS5090996A (cg-RX-API-DMAC10.html) |
| BR (1) | BR7409417A (cg-RX-API-DMAC10.html) |
| CA (1) | CA1054837A (cg-RX-API-DMAC10.html) |
| DE (1) | DE2452671C3 (cg-RX-API-DMAC10.html) |
| ES (1) | ES432203A1 (cg-RX-API-DMAC10.html) |
| FR (1) | FR2254536B1 (cg-RX-API-DMAC10.html) |
| GB (1) | GB1481711A (cg-RX-API-DMAC10.html) |
| IT (1) | IT1026878B (cg-RX-API-DMAC10.html) |
| NL (1) | NL7415657A (cg-RX-API-DMAC10.html) |
| SE (1) | SE397887B (cg-RX-API-DMAC10.html) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000030978A1 (fr) * | 1998-11-26 | 2000-06-02 | Commissariat A L'energie Atomique | Preparation par atomisation-sechage d'une poudre coulable de bioxyde d'uranium obtenu par conversion en voie seche de l'uf¿6? |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX146295A (es) * | 1975-10-29 | 1982-06-03 | Xerox Corp | Metodo mejorado para producir particulas de ferrita recubiertas e insensibles a la humedad |
| FR2389968B1 (cg-RX-API-DMAC10.html) * | 1977-05-02 | 1983-02-04 | Burroughs Corp | |
| JPS58145625A (ja) * | 1982-02-12 | 1983-08-30 | Tdk Corp | 磁性キヤリヤ粒子 |
| JPS58145622A (ja) * | 1982-02-12 | 1983-08-30 | Tdk Corp | 磁性キヤリヤ粒子 |
| US4480093A (en) * | 1983-05-23 | 1984-10-30 | Borg-Warner Chemicals, Inc. | Amines salts of phosphoric acid |
| JPS60458A (ja) * | 1983-06-09 | 1985-01-05 | Kanto Denka Kogyo Kk | 電子写真用キヤリア− |
| JPS6060930A (ja) * | 1983-09-13 | 1985-04-08 | Dowa Mining Co Ltd | フエライト球状粉の製造法 |
| DE3809694A1 (de) * | 1988-03-23 | 1989-10-05 | Hoechst Ceram Tec Ag | Verfahren zur herstellung eines trennmittels zum mehrlagigen brennen von keramikfolien |
| JP2743009B2 (ja) * | 1989-04-19 | 1998-04-22 | 戸田工業株式会社 | ボンド磁心用フェライト粒子粉末及びその製造法 |
| EP0394020B1 (en) * | 1989-04-19 | 1994-09-14 | Toda Kogyo Corp. | Ferrite particles and ferrite resin composite for bonded magnetic core and process for their production |
-
1974
- 1974-10-29 CA CA212,579A patent/CA1054837A/en not_active Expired
- 1974-11-06 DE DE2452671A patent/DE2452671C3/de not_active Expired
- 1974-11-08 BR BR9417/74A patent/BR7409417A/pt unknown
- 1974-11-14 GB GB49374/74A patent/GB1481711A/en not_active Expired
- 1974-11-22 ES ES432203A patent/ES432203A1/es not_active Expired
- 1974-11-29 NL NL7415657A patent/NL7415657A/xx active Search and Examination
- 1974-12-03 JP JP49139411A patent/JPS5090996A/ja active Pending
- 1974-12-09 IT IT30308/74A patent/IT1026878B/it active
- 1974-12-09 SE SE7415379A patent/SE397887B/xx unknown
- 1974-12-12 FR FR7440926A patent/FR2254536B1/fr not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000030978A1 (fr) * | 1998-11-26 | 2000-06-02 | Commissariat A L'energie Atomique | Preparation par atomisation-sechage d'une poudre coulable de bioxyde d'uranium obtenu par conversion en voie seche de l'uf¿6? |
| FR2786479A1 (fr) * | 1998-11-26 | 2000-06-02 | Commissariat Energie Atomique | Preparation par atomisation-sechage d'une poudre coulable de bioxyde d'uranium obtenu par conversion en voie seche de l'uf6 |
| US6656391B1 (en) | 1998-11-26 | 2003-12-02 | Commissariat A L'energie Atomique | Preparation by spray-drying of a flowable uranium dioxide powder obtained by dry process conversion of UF6 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2452671A1 (de) | 1975-06-26 |
| BR7409417A (pt) | 1976-05-18 |
| DE2452671C3 (de) | 1979-12-20 |
| CA1054837A (en) | 1979-05-22 |
| IT1026878B (it) | 1978-10-20 |
| FR2254536B1 (cg-RX-API-DMAC10.html) | 1982-04-16 |
| NL7415657A (nl) | 1975-03-27 |
| SE397887B (sv) | 1977-11-21 |
| SE7415379L (cg-RX-API-DMAC10.html) | 1975-06-13 |
| ES432203A1 (es) | 1977-02-16 |
| FR2254536A1 (cg-RX-API-DMAC10.html) | 1975-07-11 |
| JPS5090996A (cg-RX-API-DMAC10.html) | 1975-07-21 |
| DE2452671B2 (de) | 1979-04-12 |
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| Publication | Publication Date | Title |
|---|---|---|
| US3839029A (en) | Electrostatographic development with ferrite developer materials | |
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| GB1375814A (cg-RX-API-DMAC10.html) | ||
| JPS58123548A (ja) | 電子写真現像用キヤリア | |
| CA1054837A (en) | Spherical, void-free particle formation in spray-dried ferrites | |
| ATE186862T1 (de) | Präparation von gemischten ultrafeinen partikeln aus einer pfpe mikroemulsion | |
| JPS5468246A (en) | Electrostatographic developer | |
| GB1398871A (en) | Process of making ferrite materials | |
| JPS58123552A (ja) | 電子写真現像用キヤリア | |
| ES455926A1 (es) | Un procedimiento para preparar un polvo de alumina de tipo beta, muy fluido y vertible. | |
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| GB887632A (en) | Improvements in and relating to the manufacture of square hysteresis loop ferrite cores | |
| JPS56134522A (en) | Preparation of magnetic powder for magnetic recording use | |
| JPH0431107B2 (cg-RX-API-DMAC10.html) | ||
| JPS62184470A (ja) | 正荷電トナ−用フエライトキヤリア材 | |
| JPS58123555A (ja) | 電子写真現像用フェライトキャリア | |
| JPS55140722A (en) | Manufacture of ferrite fine grain powder | |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 746 | Register noted 'licences of right' (sect. 46/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |