GB1295434A - - Google Patents
Info
- Publication number
- GB1295434A GB1295434A GB1295434DA GB1295434A GB 1295434 A GB1295434 A GB 1295434A GB 1295434D A GB1295434D A GB 1295434DA GB 1295434 A GB1295434 A GB 1295434A
- Authority
- GB
- United Kingdom
- Prior art keywords
- metal
- mixed oxide
- aqueous
- nitrate solution
- sol
- 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
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 6
- 239000000243 solution Substances 0.000 abstract 5
- 229910052751 metal Inorganic materials 0.000 abstract 4
- 239000002184 metal Substances 0.000 abstract 4
- 150000001768 cations Chemical class 0.000 abstract 3
- 239000000377 silicon dioxide Substances 0.000 abstract 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 2
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 239000001257 hydrogen Substances 0.000 abstract 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract 2
- YIXJRHPUWRPCBB-UHFFFAOYSA-N magnesium nitrate Chemical compound [Mg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YIXJRHPUWRPCBB-UHFFFAOYSA-N 0.000 abstract 2
- 150000002736 metal compounds Chemical class 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 239000000843 powder Substances 0.000 abstract 2
- XREXPQGDOPQPAH-QKUPJAQQSA-K trisodium;[(z)-18-[1,3-bis[[(z)-12-sulfonatooxyoctadec-9-enoyl]oxy]propan-2-yloxy]-18-oxooctadec-9-en-7-yl] sulfate Chemical compound [Na+].[Na+].[Na+].CCCCCCC(OS([O-])(=O)=O)C\C=C/CCCCCCCC(=O)OCC(OC(=O)CCCCCCC\C=C/CC(CCCCCC)OS([O-])(=O)=O)COC(=O)CCCCCCC\C=C/CC(CCCCCC)OS([O-])(=O)=O XREXPQGDOPQPAH-QKUPJAQQSA-K 0.000 abstract 2
- IVORCBKUUYGUOL-UHFFFAOYSA-N 1-ethynyl-2,4-dimethoxybenzene Chemical compound COC1=CC=C(C#C)C(OC)=C1 IVORCBKUUYGUOL-UHFFFAOYSA-N 0.000 abstract 1
- 229910000531 Co alloy Inorganic materials 0.000 abstract 1
- 229910017639 MgSi Inorganic materials 0.000 abstract 1
- 239000003570 air Substances 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
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 229910052786 argon Inorganic materials 0.000 abstract 1
- 239000011575 calcium Substances 0.000 abstract 1
- FGZBFIYFJUAETR-UHFFFAOYSA-N calcium;magnesium;silicate Chemical compound [Mg+2].[Ca+2].[O-][Si]([O-])([O-])[O-] FGZBFIYFJUAETR-UHFFFAOYSA-N 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 abstract 1
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 abstract 1
- 229910001981 cobalt nitrate Inorganic materials 0.000 abstract 1
- JPNWDVUTVSTKMV-UHFFFAOYSA-N cobalt tungsten Chemical compound [Co].[W] JPNWDVUTVSTKMV-UHFFFAOYSA-N 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- RLJMLMKIBZAXJO-UHFFFAOYSA-N lead nitrate Chemical compound [O-][N+](=O)O[Pb]O[N+]([O-])=O RLJMLMKIBZAXJO-UHFFFAOYSA-N 0.000 abstract 1
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 abstract 1
- 229910052451 lead zirconate titanate Inorganic materials 0.000 abstract 1
- 229910001092 metal group alloy Inorganic materials 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 239000006104 solid solution Substances 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- LLZRNZOLAXHGLL-UHFFFAOYSA-J titanic acid Chemical compound O[Ti](O)(O)O LLZRNZOLAXHGLL-UHFFFAOYSA-J 0.000 abstract 1
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 abstract 1
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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
- B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
- B22F9/22—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/14—Methods for preparing oxides or hydroxides in general
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/14—Methods for preparing oxides or hydroxides in general
- C01B13/34—Methods for preparing oxides or hydroxides in general by oxidation or hydrolysis of sprayed or atomised solutions
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/28—Slip casting
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/30—Drying methods
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
- C04B35/265—Compositions containing one or more ferrites of the group comprising manganese or zinc and one or more ferrites of the group comprising nickel, copper or cobalt
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
- C04B35/2683—Other ferrites containing alkaline earth metals or lead
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Compounds Of Iron (AREA)
Abstract
1295434 Mixed oxides UNITED KINGDOM ATOMIC ENERGY AUTHORITY 17 Nov 1969 [25 Nov 1968] 55908/68 Heading C1A Mixed oxides are made by mixing an aqueous silica or metal compound sol with either an aqueous sol of a second metal compound or an aqueous solution containing cations of the second metal, and spraying the mixture as droplets into a vessel containing gas at such elevated temperature that reaction to form a partly or fully-reacted mixed oxide occurs, and then separating out a powder of such mixed oxide. Mixed oxide is defined as a single phase mixed oxide compound or solid solution containing two or more metal cations or silicon and at least one metal cation, but excluding more physical admixtures. An aqueous solor solution of a third metal may be incorporated in the starting mixture. The droplets (e.g. 10 microns) may be sprayed countercurrent to, or cocurrent with, a flow of gas e.g. air, nitrogen, argon, hydrogen or ammonia heated to 700- 1000‹C. directly or by radiation from the walls of the reaction vessel. Reaction takes place in gaseous suspension to form a hydrous oxide gel, which is then dehydrated to a ceramic gel e.g. 1-5 microns diameter. The particles may be powdered, shaped into green artifacts and sintered, or alternatively reduced to a metal alloy powder, The reaction vessel may be a vertical heated silica or alumina tube. Examples describe the preparations of (1) lead zirconatetitanate from titanium hydroxide sol, zirconium hydroxide sol and lead nitrate solution; (2) CaMgSiO 4 and Ca 3 MgSi 2 O 8 from calcium nitrate solution, magnesium nitrate solution and silica aquasol; (3) calcium magnesium silicate; and (4) tungsten-cobalt alloy (including hexagonal WCo 3 ) by reducing, in hydrogen at 1000‹C, a mixed oxide made from cobalt nitrate solution and tungstic oxide aquasol.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5590868 | 1968-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1295434A true GB1295434A (en) | 1972-11-08 |
Family
ID=10475193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1295434D Expired GB1295434A (en) | 1968-11-25 | 1968-11-25 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1958787A1 (en) |
| FR (1) | FR2024178A1 (en) |
| GB (1) | GB1295434A (en) |
| NL (1) | NL6917605A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2196621A (en) * | 1986-10-23 | 1988-05-05 | Plessey Co Plc | Particulate oxide materials |
| AU625532B2 (en) * | 1987-10-05 | 1992-07-16 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Process for the preparation of metal oxide powders |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI782187A7 (en) * | 1977-07-18 | 1979-01-19 | Kajaani Oy | FOERFARANDE FOER FRAMSTAELLNING AV SODIUM-METALLOXID |
| DE2964645D1 (en) * | 1978-11-18 | 1983-03-03 | Dornier System Gmbh | Process for the manufacture of hard-magnetic ferrite powder |
| DE2853931A1 (en) * | 1978-12-14 | 1980-06-19 | Dornier System Gmbh | METHOD FOR PRODUCING METALLIC POWDER |
| EP0285339A1 (en) * | 1987-04-01 | 1988-10-05 | Corning Glass Works | Metal oxide and metal sulfide particles and production thereof |
| EP0291667A3 (en) * | 1987-05-15 | 1990-03-28 | Dornier Gmbh | Composite powder from metallic or ceramic whiskers |
| FR2628415A1 (en) * | 1988-03-09 | 1989-09-15 | Rhone Poulenc Chimie | PROCESS FOR MANUFACTURING SUPERCONDUCTING MATERIALS AND PRODUCTS THUS OBTAINED |
| AT391848B (en) * | 1988-06-22 | 1990-12-10 | Andritz Ag Maschf | METHOD AND DEVICE FOR PRODUCING METAL OXIDS |
| DE19837548A1 (en) * | 1998-08-19 | 2000-03-09 | Aventis Res & Tech Gmbh & Co | Low carbon and hydrogen content oxide powder for high temperature superconductor wire, strip, rod, tube or hollow or solid body manufacture |
| DE10223746A1 (en) * | 2002-05-28 | 2003-12-18 | Honeywell Specialty Chemicals | Process for the production of mixed oxides containing lanthanum, strontium and manganese for electrodes in fuel cells |
-
1968
- 1968-11-25 GB GB1295434D patent/GB1295434A/en not_active Expired
-
1969
- 1969-11-21 NL NL6917605A patent/NL6917605A/xx unknown
- 1969-11-22 DE DE19691958787 patent/DE1958787A1/en active Pending
- 1969-11-24 FR FR6940431A patent/FR2024178A1/fr not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2196621A (en) * | 1986-10-23 | 1988-05-05 | Plessey Co Plc | Particulate oxide materials |
| AU625532B2 (en) * | 1987-10-05 | 1992-07-16 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Process for the preparation of metal oxide powders |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1958787A1 (en) | 1970-07-09 |
| NL6917605A (en) | 1970-05-27 |
| FR2024178A1 (en) | 1970-08-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |