GB951976A - Improvements in or relating to pigments - Google Patents

Improvements in or relating to pigments

Info

Publication number
GB951976A
GB951976A GB3818761A GB3818761A GB951976A GB 951976 A GB951976 A GB 951976A GB 3818761 A GB3818761 A GB 3818761A GB 3818761 A GB3818761 A GB 3818761A GB 951976 A GB951976 A GB 951976A
Authority
GB
United Kingdom
Prior art keywords
silica
zinc oxide
pigment
calcined
oxide
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
GB3818761A
Inventor
Edward Joseph Dunn
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.)
NAT LEAD CO
NL Industries Inc
Original Assignee
NAT LEAD CO
NL Industries Inc
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 NAT LEAD CO, NL Industries Inc filed Critical NAT LEAD CO
Priority to GB3818761A priority Critical patent/GB951976A/en
Publication of GB951976A publication Critical patent/GB951976A/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
    • C09C1/0081—Composite particulate pigments or fillers, i.e. containing at least two solid phases, except those consisting of coated particles of one compound
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
    • C01P2004/82—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases
    • C01P2004/84—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases one phase coated with the other
    • 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
    • C01P2006/10—Solid density
    • 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
    • C01P2006/19—Oil-absorption capacity, e.g. DBP 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
    • C01P2006/60—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
    • 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
    • C01P2006/90—Other properties not specified above

Landscapes

  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Organic Chemistry (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Abstract

A calcined pigment comprising 20 to 80% by weight of zinc oxide and 80 to 20% by weight of silica, no zinc silicate being present. The pigment may be in the form of a silica core coated with zinc oxide. The sources of silica are precipitated silicic acid, native silica and quartzite. The pigment may also comprise lead oxide and sulphur trioxide. The pigment is prepared by forming an intimate mixture of the zinc oxide and silica and calcining at 450 DEG to 700 DEG C. In Example 1 a slurry formed by ball milling silica, zinc oxide, water and acetic acid (as catalyst), was filtered, dried and calcined. In Example 2 an aqueous slurry of lead oxide and zinc oxide, which lead oxide and zinc oxide had been blended in the dry state, and acetic acid were added to an aqueous slurry of silica, the slurry heated, sulphuric acid added thereto and then the mixture was stirred, filtered, dried and calcined.ALSO:A calcined pigment comprising 20 to 80% by weight of zinc oxide and 80 to 20% by weight of silica, no zinc silicate being present. The pigment may be in the form of a silica core coated with zinc oxide. The sources of silica are precipitated silicic acid, native silica and quartzite. The pigment may also comprise lead oxide and sulphur trioxide. The pigment is prepared by forming an intimate mixture of the zinc oxide and silica and calcining at 450 DEG to 700 DEG C. In Example 1, a slurry formed by ball milling silica, zinc oxide, water and acetic acid (as catalyst), was filtered, dried and calcined. In Example 2, an aqueous slurry of lead oxide and zinc oxide, which lead oxide and zinc oxide had been blended in the dry state, and acetic acid were added to an aqueous slurry of silica, the slurry heated, sulphuric acid added thereto and then the mixture was stirred, filtered, dried and calcined.
GB3818761A 1961-10-25 1961-10-25 Improvements in or relating to pigments Expired GB951976A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3818761A GB951976A (en) 1961-10-25 1961-10-25 Improvements in or relating to pigments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3818761A GB951976A (en) 1961-10-25 1961-10-25 Improvements in or relating to pigments

Publications (1)

Publication Number Publication Date
GB951976A true GB951976A (en) 1964-03-11

Family

ID=10401812

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3818761A Expired GB951976A (en) 1961-10-25 1961-10-25 Improvements in or relating to pigments

Country Status (1)

Country Link
GB (1) GB951976A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2635784A1 (en) * 1988-08-25 1990-03-02 Albright & Wilson ANTI-CORROSIVE COMPOSITIONS BASED ON PIGMENTS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2635784A1 (en) * 1988-08-25 1990-03-02 Albright & Wilson ANTI-CORROSIVE COMPOSITIONS BASED ON PIGMENTS
EP0360422A2 (en) * 1988-08-25 1990-03-28 Albright & Wilson Limited Anticorrosive pigment composition
EP0360422A3 (en) * 1988-08-25 1992-01-29 Albright & Wilson Limited Anticorrosive pigment composition

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