GB1085724A - Rutile opacifying pigment - Google Patents

Rutile opacifying pigment

Info

Publication number
GB1085724A
GB1085724A GB795565A GB795565A GB1085724A GB 1085724 A GB1085724 A GB 1085724A GB 795565 A GB795565 A GB 795565A GB 795565 A GB795565 A GB 795565A GB 1085724 A GB1085724 A GB 1085724A
Authority
GB
United Kingdom
Prior art keywords
rutile
tio2
pigment
ratio
al2o3
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
GB795565A
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 GB1085724A publication Critical patent/GB1085724A/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
    • C09C1/3607—Titanium dioxide
    • C09C1/3653—Treatment with inorganic compounds
    • C09C1/3661—Coating
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/38—Coatings with pigments characterised by the pigments
    • D21H19/385—Oxides, hydroxides or carbonates
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/50—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by form
    • D21H21/52—Additives of definite length or shape

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Paper (AREA)

Abstract

A rutile pigment consists of at least 95% TiO2 as single particle not more than 20% thereof being above 0.3 m wide and not more than 10% being less than 0.08m wide and has a ratio of light scattering coefficient in 4570 <\>rA blue light to that in 6100 <\>rA red light (SX ratio) of at least 1.46. Coating with a mixture of Al2O3, SiO2 and/or TiO2 in amount up to 15% of the rutile gives an SX ratio of 1.5-1.9. The rutile may be prepared by either hydrolysing Ti(SO4)2 solution by heating in the presence of hydrous titania as nucleating agent and calcining the hydrolysate at 750-1050 DEG C. as described in Specification 568,232, or preferably by oxidizing TiCl4 vapour with air or O2. In the latter method the size is controlled by the dilution of O2, retention time in reaction zone, flow rates, presence of AlCl3 (Specification 707,560) and an alkali metal chloride (75-1000 p.p.m. of TiO2 being produced) as described in Canadian patent 662,785. The pigment is coated by suspension in an aqueous slurry, at 50-100 DEG C., of water-soluble Al, Si and Ti compounds (100-600 g./l.) adjusting the pH to ppt. the Al2O3, SiO2 and/or TiO2 on the base pigment, adjusting the pH to 6-9, and recovering the pigment particles which are then dry milled.
GB795565A 1964-02-24 1965-02-24 Rutile opacifying pigment Expired GB1085724A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US34700964A 1964-02-24 1964-02-24

Publications (1)

Publication Number Publication Date
GB1085724A true GB1085724A (en) 1967-10-04

Family

ID=23361961

Family Applications (1)

Application Number Title Priority Date Filing Date
GB795565A Expired GB1085724A (en) 1964-02-24 1965-02-24 Rutile opacifying pigment

Country Status (4)

Country Link
DE (1) DE1467474A1 (en)
FI (1) FI49200C (en)
FR (1) FR1431160A (en)
GB (1) GB1085724A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3817909A1 (en) * 1987-05-30 1988-12-08 Tioxide Group Plc PARTICULATE MATERIAL
GB2308118A (en) * 1995-12-15 1997-06-18 Tioxide Group Services Ltd Rutile titanium dioxide

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1592951B2 (en) 1966-01-07 1980-10-02 E.I. Du Pont De Nemours And Co., Wilmington, Del. (V.St.A.) Pigment mass based on crystalline titanium dioxide and process for its production
JPS564900B2 (en) * 1973-03-01 1981-02-02

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3817909A1 (en) * 1987-05-30 1988-12-08 Tioxide Group Plc PARTICULATE MATERIAL
DE3817909B4 (en) * 1987-05-30 2005-11-24 Imperial Chemical Industries Plc Particulate material and method of manufacture
GB2308118A (en) * 1995-12-15 1997-06-18 Tioxide Group Services Ltd Rutile titanium dioxide

Also Published As

Publication number Publication date
DE1467474A1 (en) 1968-12-19
FI49200C (en) 1975-04-10
FI49200B (en) 1974-12-31
FR1431160A (en) 1966-03-11

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