GB550288A - Improvements in or relating to the production of zirconia - Google Patents
Improvements in or relating to the production of zirconiaInfo
- Publication number
- GB550288A GB550288A GB1172041A GB1172041A GB550288A GB 550288 A GB550288 A GB 550288A GB 1172041 A GB1172041 A GB 1172041A GB 1172041 A GB1172041 A GB 1172041A GB 550288 A GB550288 A GB 550288A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphate
- zirconium
- calcium chloride
- zirconia
- calcium
- 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
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G25/00—Compounds of zirconium
- C01G25/02—Oxides
-
- 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
- C01P2006/80—Compositional purity
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
550,288. Zirconium oxide. AXT, M. O., and BERK & CO., Ltd., F. W. Sept. 12, 1941, No. 11720. [Class 1 (iii)] Zirconia is produced by a process in which a solution of zirconium sulphate, free from acid and from alkali salts which form double compounds with zirconium sulphate, and in the absence of a large proportion of magnesium sulphate, is hydrolysed in the presence of between 30 and 35 per cent. of calcium chloride (containing about 75 per cent. CaCl 2 ) and the precipitate calcined. Part of the calcium chloride may be replaced by an equivalent amount of calcium nitrate; if the zirconium sulphate solution contains calcium sulphate the amount of added calcium chloride is correspondingly reduced; when the solution contains iron this is reduced before the hydrolysis. Specification 544,965 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1172041A GB550288A (en) | 1941-09-12 | 1941-09-12 | Improvements in or relating to the production of zirconia |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1172041A GB550288A (en) | 1941-09-12 | 1941-09-12 | Improvements in or relating to the production of zirconia |
Publications (1)
Publication Number | Publication Date |
---|---|
GB550288A true GB550288A (en) | 1943-01-01 |
Family
ID=9991432
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1172041A Expired GB550288A (en) | 1941-09-12 | 1941-09-12 | Improvements in or relating to the production of zirconia |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB550288A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4722833A (en) * | 1985-12-10 | 1988-02-02 | Nissan Chemical Industries, Ltd. | Fine coagulated particles of ultrafine monoclinic zirconia crystals oriented in a fiber bundle-like form and method of manufacturing them |
US4765970A (en) * | 1985-07-03 | 1988-08-23 | Nissan Chemical Industries, Ltd. | Flaky zirconia type fine crystals and methods of producing the same |
-
1941
- 1941-09-12 GB GB1172041A patent/GB550288A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4765970A (en) * | 1985-07-03 | 1988-08-23 | Nissan Chemical Industries, Ltd. | Flaky zirconia type fine crystals and methods of producing the same |
US4722833A (en) * | 1985-12-10 | 1988-02-02 | Nissan Chemical Industries, Ltd. | Fine coagulated particles of ultrafine monoclinic zirconia crystals oriented in a fiber bundle-like form and method of manufacturing them |
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