GB1109838A - Titanium dioxide pigment and method of preparation thereof - Google Patents

Titanium dioxide pigment and method of preparation thereof

Info

Publication number
GB1109838A
GB1109838A GB3206565A GB3206565A GB1109838A GB 1109838 A GB1109838 A GB 1109838A GB 3206565 A GB3206565 A GB 3206565A GB 3206565 A GB3206565 A GB 3206565A GB 1109838 A GB1109838 A GB 1109838A
Authority
GB
United Kingdom
Prior art keywords
hrs
ticl4
titanium dioxide
concentration
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
Application number
GB3206565A
Inventor
Ray Smith Long
David Allen Ellis
Kenneth Edward Cox
James Edmund Magner
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Priority to GB3206565A priority Critical patent/GB1109838A/en
Publication of GB1109838A publication Critical patent/GB1109838A/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
    • C01G23/0536—Producing by wet processes, e.g. hydrolysing titanium salts by hydrolysing chloride-containing salts
    • C01G23/0538—Producing by wet processes, e.g. hydrolysing titanium salts by hydrolysing chloride-containing salts in the presence of seeds
    • 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
    • C09C1/3607—Titanium dioxide
    • C09C1/3615—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
    • C09C1/363—Drying, calcination
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Abstract

A pigment grade, crystalline, acicular titanium dioxide having a cross-sectional diameter of 0.05-0.2 m , a length of 0.3-1.5 m , with a length: diameter ratio of 3-15, is prepared by mixing an aqueous colloidal suspension of TiO2, nucleating seed particles, prepared by heating e.g. at 60-90 DEG C. for 4-60 mins. an aqueous solution of TiCl4 having a Cl-/Ti ratio of 1.5-4, preferably 1.6-2.3, a pH of 0.3-0.7 and a Ti concentration of 8-30 g./l., with an acidic TiCl4 solution having Cl-/Ti \sP 4, H+/T. \sP 4, a Ti concentration of 15-85 g./l., the colloidal solution providing 4-10 wt. per cent of the Ti values in the mixture, heating the mixture at \sF 190 DEG C., preferably 210-260 DEG C., for 0.5-5 hrs., under an autogenous pressure to hydrolyse the TiCl4 and separating the Ti values precipitated. The product may be subsequently calcined at 700-900 DEG C. for 0.5-6 hrs. The product has a high tinting strength and hiding power, e.g. a tinting strength of 1850 to 1900 when hydrolysed at 190 DEG C. for 2-5 hrs. without calcination, or 1950-2150 at 210-260 DEG C. for 0.5-5 hrs.
GB3206565A 1965-07-27 1965-07-27 Titanium dioxide pigment and method of preparation thereof Expired GB1109838A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3206565A GB1109838A (en) 1965-07-27 1965-07-27 Titanium dioxide pigment and method of preparation thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3206565A GB1109838A (en) 1965-07-27 1965-07-27 Titanium dioxide pigment and method of preparation thereof

Publications (1)

Publication Number Publication Date
GB1109838A true GB1109838A (en) 1968-04-18

Family

ID=10332645

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3206565A Expired GB1109838A (en) 1965-07-27 1965-07-27 Titanium dioxide pigment and method of preparation thereof

Country Status (1)

Country Link
GB (1) GB1109838A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0505022A1 (en) * 1991-03-21 1992-09-23 Tioxide Group Services Limited Method for preparing pigments

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0505022A1 (en) * 1991-03-21 1992-09-23 Tioxide Group Services Limited Method for preparing pigments
AU636071B2 (en) * 1991-03-21 1993-04-08 Tioxide Group Services Limited Method for preparing pigments
US5242557A (en) * 1991-03-21 1993-09-07 Tioxide Group Services Limited Method for preparing pigments

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