GB550288A - Improvements in or relating to the production of zirconia - Google Patents

Improvements in or relating to the production of zirconia

Info

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
Application number
GB1172041A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FW Berk and Co Ltd
Original Assignee
FW Berk and Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by FW Berk and Co Ltd filed Critical FW Berk and Co Ltd
Priority to GB1172041A priority Critical patent/GB550288A/en
Publication of GB550288A publication Critical patent/GB550288A/en
Expired legal-status Critical Current

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.
GB1172041A 1941-09-12 1941-09-12 Improvements in or relating to the production of zirconia Expired GB550288A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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