GB1158830A - Production of Titanium Dioxide Nuclei - Google Patents

Production of Titanium Dioxide Nuclei

Info

Publication number
GB1158830A
GB1158830A GB3628867A GB3628867A GB1158830A GB 1158830 A GB1158830 A GB 1158830A GB 3628867 A GB3628867 A GB 3628867A GB 3628867 A GB3628867 A GB 3628867A GB 1158830 A GB1158830 A GB 1158830A
Authority
GB
United Kingdom
Prior art keywords
nuclei
tio
liquid
suspension
hydrolysis
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
GB3628867A
Inventor
Walter Twist
Kenneth Ord
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.)
British Titan Products Co Ltd
Original Assignee
British Titan Products 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 British Titan Products Co Ltd filed Critical British Titan Products Co Ltd
Priority to GB3628867A priority Critical patent/GB1158830A/en
Priority to FR1581804D priority patent/FR1581804A/fr
Publication of GB1158830A publication Critical patent/GB1158830A/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
    • C01G23/00—Compounds of titanium
    • C01G23/04—Oxides; Hydroxides
    • C01G23/047—Titanium dioxide
    • C01G23/053—Producing by wet processes, e.g. hydrolysing titanium salts
    • C01G23/0532—Producing by wet processes, e.g. hydrolysing titanium salts by hydrolysing sulfate-containing salts
    • C01G23/0534—Producing by wet processes, e.g. hydrolysing titanium salts by hydrolysing sulfate-containing salts in the presence of seeds
    • 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
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values

Abstract

1,158,830. TiO 2 nuclei. BRITISH TITAN PRODUCTS CO. Ltd. 10 July, 1968 [8 Aug., 1967], No. 36288/67. Heading C1N. Nuclei for Ti sulphate hydrolysis are prepared by freezing and remelting an aqueous suspension or cake of TiO 2 nuclei and separating the solid nuclei from the liquid. The cooling rate is at least 4‹ C. per min., at least from 1‹ C. above to 4‹ C. below the f.pt., e.g. 20- 30‹ C. per min., and freezing may be instantaneous. The suspension may contain 10% by wt. or less TiO 2 , and may be cooled by dropping it into liquid N 2 , O 2 or air, or solid CO 2 , or by spraying it on to a surface cooled by liquid N 2 or air. It may be allowed to melt, or heated at below 100‹ C., and then separated by filter or centrifuge. The suspension may be reconstituted by mixing the nuclei with water or HCI in a ball mill, and added to a solution of Ti sulphate obtained by digesting Ti slag or ilmenite in H 2 SO 4 . The TiO 2 obtained on hydrolysis may be calcined at 860‹ or 885‹ C. after addition of K 2 SO 4 , ZnSO 4, and ammonium phosphate. The initial nuclei may be anatose or rutile inducing and may be obtained by thermal hydrolysis of aqueous TiCl 4 after partial neutralization with NaOH.
GB3628867A 1967-08-08 1967-08-08 Production of Titanium Dioxide Nuclei Expired GB1158830A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3628867A GB1158830A (en) 1967-08-08 1967-08-08 Production of Titanium Dioxide Nuclei
FR1581804D FR1581804A (en) 1967-08-08 1968-08-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3628867A GB1158830A (en) 1967-08-08 1967-08-08 Production of Titanium Dioxide Nuclei

Publications (1)

Publication Number Publication Date
GB1158830A true GB1158830A (en) 1969-07-23

Family

ID=10386737

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3628867A Expired GB1158830A (en) 1967-08-08 1967-08-08 Production of Titanium Dioxide Nuclei

Country Status (2)

Country Link
FR (1) FR1581804A (en)
GB (1) GB1158830A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2308842A (en) * 1996-01-05 1997-07-09 Tioxide Group Services Ltd Preparation of anatase titanium dioxide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2308842A (en) * 1996-01-05 1997-07-09 Tioxide Group Services Ltd Preparation of anatase titanium dioxide

Also Published As

Publication number Publication date
FR1581804A (en) 1969-09-19

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees