GB1204601A - Acicular titanium dioxide pigment and methods for its preparation - Google Patents

Acicular titanium dioxide pigment and methods for its preparation

Info

Publication number
GB1204601A
GB1204601A GB03319/68A GB1331968A GB1204601A GB 1204601 A GB1204601 A GB 1204601A GB 03319/68 A GB03319/68 A GB 03319/68A GB 1331968 A GB1331968 A GB 1331968A GB 1204601 A GB1204601 A GB 1204601A
Authority
GB
United Kingdom
Prior art keywords
rutile
tio
hpo
sulphate
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
GB03319/68A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB1204601A publication Critical patent/GB1204601A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • C09C1/3692—Combinations of treatments provided for in groups C09C1/3615 - C09C1/3684
    • 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
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
    • C09C3/043—Drying, calcination
    • 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
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/06—Treatment with inorganic compounds
    • 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
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Composite Materials (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Cosmetics (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Abstract

1,204,601. Acicular rutile TiO 2 . E. I. DU PONT DE NEMOURS & CO. 19 March, 1968 [21 March, 1967; 28 June, 1967], No. 13319/68. Heading C1N. Acicular rutile TiO 2 particles are prepared by calcining at 725-1000‹ C. for ¢-10 hrs. a mixture of (a) TiO 2 , (b) NaCl or a mixture of at least 50 mole per cent NaCl with at least one other alkali metal chloride or sulphate, and (c) an oxy-phosphorus compound, the wt. ratio of b : a being 0À05 : 1 to 2 : 1 and of b : c being 5 : 1 to 130 : 1 (based on the P content), then leaching the product to remove soluble salts. The product particles have a diameter of 0À01- 0À5 Á and a length: diameter ratio of 3 : 1 to 50 : 1. The other salt in (b) may be KCl, Na 2 SO 4 , or K 2 SO 4 , with minor amounts of Na or K bromides or iodides. (c) may be Na 3 PO 4 , Na 2 HPO 4 , NaH 2 PO 4 , Na 4 P 2 O 7 , NaPO 3 , Na 5 , P 3 O 10 , K 3 PO 4 , K 2 HPO 4 , KH 2 PO 4 , KPO 3 - H 3 PO 4 , H 3 PO 3 , H 4 P 2 O 5 , H 4 P 2 O 7 , HPO 3 , P 2 O 3 , P 2 O 5 , NH 4 H 2 PO 4 , (NH 4 ) 2 HPO 4 , or monocresyl phosphate. (a) may be (i) the rutile seed described in U.S. Specification 2,479,637 for use in sulphate hydrolysis, which may be partially dehydrated by freeze drying or heating at 110‹ C. or may be calcined at 500-700‹ C.; (ii) TiO 2 produced by sulphate hydrolysis using the rutile seed of (i), which TiO 2 is then washed, acid treated to remove Cr and V, dried at 110- 150‹ C. and calcined at 600-900‹ C. until 10-60% is rutile; (iii) a wholly anatase precipitate which converts to rutile on calcination; or (iv) a mixture of a nucleant rutile TiO 2 having a particle size of 0À01-0À2 Á obtained by pyrolytic TiCl 4 oxidation or by hydrolysis of TiCl 4 followed by calcination, and a less stable nutrient which may be anatase or rutile obtained by hydrolysis of Ti sulphate or chloride. (b) and (c) may be dried at 150‹ C. and ground, mixed well with (a) and pelleted. Calcining may be effected in air containing water vapour. The product is then leached with water, filtered, and dried at 150‹ C.
GB03319/68A 1967-03-21 1968-03-19 Acicular titanium dioxide pigment and methods for its preparation Expired GB1204601A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US62471667A 1967-03-21 1967-03-21
US65598467A 1967-06-28 1967-06-28

Publications (1)

Publication Number Publication Date
GB1204601A true GB1204601A (en) 1970-09-09

Family

ID=27089741

Family Applications (1)

Application Number Title Priority Date Filing Date
GB03319/68A Expired GB1204601A (en) 1967-03-21 1968-03-19 Acicular titanium dioxide pigment and methods for its preparation

Country Status (4)

Country Link
DE (1) DE1767021A1 (en)
FI (1) FI47458C (en)
FR (1) FR1561551A (en)
GB (1) GB1204601A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2308118A (en) * 1995-12-15 1997-06-18 Tioxide Group Services Ltd Rutile titanium dioxide
WO2008085475A1 (en) * 2006-12-28 2008-07-17 E.I. Du Pont De Nemours And Company Processes for the flux calcination production of titanium dioxide
CN115650287A (en) * 2022-11-14 2023-01-31 攀钢集团攀枝花钢铁研究院有限公司 Method for controlling length-diameter ratio of rutile type titanium dioxide particles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2308118A (en) * 1995-12-15 1997-06-18 Tioxide Group Services Ltd Rutile titanium dioxide
WO2008085475A1 (en) * 2006-12-28 2008-07-17 E.I. Du Pont De Nemours And Company Processes for the flux calcination production of titanium dioxide
AU2007342420B2 (en) * 2006-12-28 2014-03-06 E. I. Du Pont De Nemours And Company Processes for the flux calcination production of titanium dioxide
CN115650287A (en) * 2022-11-14 2023-01-31 攀钢集团攀枝花钢铁研究院有限公司 Method for controlling length-diameter ratio of rutile type titanium dioxide particles

Also Published As

Publication number Publication date
FI47458C (en) 1973-12-10
DE1767021A1 (en) 1971-08-19
FI47458B (en) 1973-08-31
FR1561551A (en) 1969-03-28

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee