GB991260A - Fluoaluminate composition as dielectric material - Google Patents
Fluoaluminate composition as dielectric materialInfo
- Publication number
- GB991260A GB991260A GB37155/62A GB3715562A GB991260A GB 991260 A GB991260 A GB 991260A GB 37155/62 A GB37155/62 A GB 37155/62A GB 3715562 A GB3715562 A GB 3715562A GB 991260 A GB991260 A GB 991260A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rbalf4
- kbf4
- fluoaluminate
- kalf4
- prepared
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/48—Halides, with or without other cations besides aluminium
- C01F7/50—Fluorides
- C01F7/54—Double compounds containing both aluminium and alkali metals or alkaline-earth metals
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/36—Silicates having base-exchange properties but not having molecular sieve properties
- C01B33/38—Layered base-exchange silicates, e.g. clays, micas or alkali metal silicates of kenyaite or magadiite type
- C01B33/42—Micas ; Interstratified clay-mica products
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B35/00—Boron; Compounds thereof
- C01B35/06—Boron halogen compounds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/025—Other inorganic material
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Insulating Materials (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
A ternary solid solution of potassium fluoaluminate, rubidium fluoaluminate and potassium fluoborate preferably containing 1-15 moles per cent, more preferably 1-5, of KBF4, 4-90 moles per cent of RbAlF4 and the remaining proportion KAlF4 is prepared by cooling a melt of the constituents in the required composition. Proportions of 2-5% KBF4 and 4-50% RbAlF4 are preferred from a practical standpoint. The KBF4 may be prepared by the method of Borlander, Hollatz and Fisher, i.e. the reaction of H3BO3 and HF in the presence of KOH. KALF4 and RbAlF4 are prepared by Brosser's method, i.e. evaporating to dryness a mixture of (1) an aqueous HF solution of hydrated alumina and (2) K or Rb fluoride, the solid ingredients being in stoichiometric quantity. In an example, 76.5% KAlF4, 8.5% RbAlF4 and 15% KBF4, on a molar basis, was mixed and fused at 650 DEG C. for one hour, then cooled slowly until solid. The product may be used as a dielectric or insulating material, having an electrical conductivity less than 10-6 mhos. per cm. Specifications 903,657 and 984,896 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US144308A US3112207A (en) | 1961-10-11 | 1961-10-11 | Fluoaluminate composition as dielectric material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB991260A true GB991260A (en) | 1965-05-05 |
Family
ID=22508014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB37155/62A Expired GB991260A (en) | 1961-10-11 | 1962-10-01 | Fluoaluminate composition as dielectric material |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3112207A (en) |
| DE (1) | DE1207850B (en) |
| GB (1) | GB991260A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4483935A (en) * | 1976-06-30 | 1984-11-20 | Diller Isaac M | Product for the activation of an electrolytic cell |
| US4731560A (en) * | 1970-08-06 | 1988-03-15 | Owens-Illinois Television Products, Inc. | Multiple gaseous discharge display/memory panel having improved operating life |
| US4794308A (en) * | 1970-08-06 | 1988-12-27 | Owens-Illinois Television Products Inc. | Multiple gaseous discharge display/memory panel having improved operating life |
| US4146665A (en) * | 1971-12-03 | 1979-03-27 | Owens-Illinois, Inc. | Gas discharge device containing coated dielectric |
| CN110550939B (en) * | 2019-09-09 | 2021-09-21 | 重庆大学 | Insulating material for manufacturing mineral insulated cable and preparation method thereof |
| CN110467188B (en) * | 2019-09-20 | 2021-02-26 | 重庆大学 | Synthetic mica and preparation method and application thereof |
| CN112624134B (en) * | 2021-01-07 | 2022-05-27 | 重庆科宝电缆股份有限公司 | Fluorophlogopite for flexible mineral insulated cable and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3016480A (en) * | 1960-06-29 | 1962-01-09 | Pennsalt Chemicals Corp | Articles containing fluoaluminates as dielectrics |
-
1961
- 1961-10-11 US US144308A patent/US3112207A/en not_active Expired - Lifetime
-
1962
- 1962-08-31 DE DEP30112A patent/DE1207850B/en active Pending
- 1962-10-01 GB GB37155/62A patent/GB991260A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1207850B (en) | 1965-12-23 |
| US3112207A (en) | 1963-11-26 |
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