GB979270A - Titanium pigments - Google Patents

Titanium pigments

Info

Publication number
GB979270A
GB979270A GB665862A GB665862A GB979270A GB 979270 A GB979270 A GB 979270A GB 665862 A GB665862 A GB 665862A GB 665862 A GB665862 A GB 665862A GB 979270 A GB979270 A GB 979270A
Authority
GB
United Kingdom
Prior art keywords
phosphoric acid
titanium
heated
precipitate
solution
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
GB665862A
Inventor
Richard Duncan Murley
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 GB665862A priority Critical patent/GB979270A/en
Priority to DE19631223349 priority patent/DE1223349C2/en
Publication of GB979270A publication Critical patent/GB979270A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/36—Compounds of titanium
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/60—Compounds characterised by their crystallite size
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
    • C01P2002/84—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by UV- or VIS- data
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • 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
    • 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 Compounds Of Heavy Metals (AREA)
  • Catalysts (AREA)
  • Glass Compositions (AREA)

Abstract

Titanium phosphate, believed to be the pyrophosphate TiP2O7, is prepared by simultaneously introducing a titanium tetrahalide and phosphoric acid or soluble salt of phosphoric acid, e.g. NH4H2PO4, into an aqueous liquid; recovering the titanium phosphate precipitate thus formed and then heating the precipitate. The titanium tetrahalide is preferably the tetrachloride, the pH of the aqueous liquid is preferably below 7, the precipitation being performed in the presence of excess phosphoric acid or soluble salt thereof, e.g. 1-50 gm./litre estimated as H3PO4. The titanium tetrahalide, the phosphoric acid, and the salt of phosphoric acid may be introduced as aqueous solutions, and are preferably introduced into the aqueous liquid at a rate such that no local excess of titanium tetrahalide occurs in the solution. The aqueous solution may be heated preferably to its b.pt. during the addition of the reactants or the reactants may be added and the solution subsequently heated. The halide solution used has a concentration of preferably 25-220 gms./litre (estimated as TiO2) and the precipitate produced may before separation be mixed with phosphoric acid or an aqueous solution of a salt thereof and boiled. The ppt. is then separated, dried and ground and heated at a temperature in the range 750 DEG to 1100 DEG C. and subsequently milled to produce a mean crystal size of 0.1 to 2 microns. After recovery but before heating, a compound which reduces the temperature to which the titanium phosphate must be heated to form a pigment may be added to the titanium phosphate precipitate. The preferred compound is potassium phosphate and it is added in an amount sufficient to give a concentration before heating (estimated as potassium) of at least 0.05% by weight, preferably 0.1% to 2% by weight.
GB665862A 1962-02-21 1962-02-21 Titanium pigments Expired GB979270A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB665862A GB979270A (en) 1962-02-21 1962-02-21 Titanium pigments
DE19631223349 DE1223349C2 (en) 1962-02-21 1963-02-13 PROCESS FOR THE PRODUCTION OF A TITANIUM PYROPHOSHATE SUITABLE AS A PIGMENT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB665862A GB979270A (en) 1962-02-21 1962-02-21 Titanium pigments

Publications (1)

Publication Number Publication Date
GB979270A true GB979270A (en) 1965-01-01

Family

ID=9818442

Family Applications (1)

Application Number Title Priority Date Filing Date
GB665862A Expired GB979270A (en) 1962-02-21 1962-02-21 Titanium pigments

Country Status (2)

Country Link
DE (1) DE1223349C2 (en)
GB (1) GB979270A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4889199A (en) * 1972-03-01 1973-11-21

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2159342C2 (en) * 1971-11-30 1984-12-20 Mizusawa Kagaku Kogyo K.K., Osaka New white pigment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4889199A (en) * 1972-03-01 1973-11-21
JPS516000B2 (en) * 1972-03-01 1976-02-24

Also Published As

Publication number Publication date
DE1223349B (en) 1974-02-07
DE1223349C2 (en) 1974-02-07

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