GB1055108A - Titanium dioxide pigment and method for the preparation thereof - Google Patents

Titanium dioxide pigment and method for the preparation thereof

Info

Publication number
GB1055108A
GB1055108A GB18766/64A GB1876664A GB1055108A GB 1055108 A GB1055108 A GB 1055108A GB 18766/64 A GB18766/64 A GB 18766/64A GB 1876664 A GB1876664 A GB 1876664A GB 1055108 A GB1055108 A GB 1055108A
Authority
GB
United Kingdom
Prior art keywords
tio2
ratio
solution
seed
master
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
GB18766/64A
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
Publication of GB1055108A publication Critical patent/GB1055108A/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
    • 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
    • C01P2004/62—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

Pigment grade crystalline, acicular TiO2 has a cross-sectional diameter of 0.05 to 0.2 m , a length of 0.3 to 0.8 m and the ratio of length: diameter is from 3 to 8. The TiO2 may be prepared by adding an aqueous colloidal suspension of TiO2 seed to an aqueous, acidic "master" solution of titanium chloride, hydrolysing the mixture, separating the TiO2 precipitated and heating it to produce the novel TiO2. The seed is prepared from an aqueous TiCl4 solution having Cl: Ti ratio of 1.5 to 4, a pH of 0.3 to 0.7 and a Ti concentration equivalent to 8 to 30 g./l. This solution is heated to 60 DEG to 80 DEG C. for 4 to 15 min. or more and added, in quantity sufficient to supply 4 to 10% of the Ti concentration in the final mixture, to a master solution having a minimum Cl: Ti ratio of 4, a minimum H+ : Ti ratio of 4 and a Ti concentration equivalent to 30 to 50 g./l. The resulting mixture is heated at, say, 100 DEG C. and 1 atm. pressure, or preferably at e.g. 190 DEG C. and autogenous pressure, and the TiO2 precipitated by hydrolysis is separated by filtration or centrifugation, washed and calcined at 700 DEG to 900 DEG C. for 0.5 to 6 hours. TiCl4 leach liquor produced by dissolution of titaniferous material with HCl and subsequent removal of Fe by solvent extraction may be employed in the preparation of both seed and master solutions.
GB18766/64A 1963-05-20 1964-05-06 Titanium dioxide pigment and method for the preparation thereof Expired GB1055108A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28178963A 1963-05-20 1963-05-20

Publications (1)

Publication Number Publication Date
GB1055108A true GB1055108A (en) 1967-01-11

Family

ID=23078794

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18766/64A Expired GB1055108A (en) 1963-05-20 1964-05-06 Titanium dioxide pigment and method for the preparation thereof

Country Status (6)

Country Link
BE (1) BE648144A (en)
DE (1) DE1467319A1 (en)
ES (1) ES299996A1 (en)
FR (1) FR1395279A (en)
GB (1) GB1055108A (en)
NL (1) NL6405580A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5242557A (en) * 1991-03-21 1993-09-07 Tioxide Group Services Limited Method for preparing pigments
CN112850782A (en) * 2021-02-22 2021-05-28 安徽英特力工业工程技术有限公司 Preparation system of raw materials seed crystal for inorganic chemical pigment production

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112939071A (en) * 2021-02-22 2021-06-11 安徽英特力工业工程技术有限公司 Preparation and storage method of titanium tetrachloride crystal seed

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5242557A (en) * 1991-03-21 1993-09-07 Tioxide Group Services Limited Method for preparing pigments
CN112850782A (en) * 2021-02-22 2021-05-28 安徽英特力工业工程技术有限公司 Preparation system of raw materials seed crystal for inorganic chemical pigment production

Also Published As

Publication number Publication date
NL6405580A (en) 1964-11-23
FR1395279A (en) 1965-04-09
DE1467319A1 (en) 1969-05-08
BE648144A (en)
ES299996A1 (en) 1964-11-01

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