GB2023157A - Process for the Preparation of an Improved Lead Chrome Pigment - Google Patents

Process for the Preparation of an Improved Lead Chrome Pigment

Info

Publication number
GB2023157A
GB2023157A GB7916719A GB7916719A GB2023157A GB 2023157 A GB2023157 A GB 2023157A GB 7916719 A GB7916719 A GB 7916719A GB 7916719 A GB7916719 A GB 7916719A GB 2023157 A GB2023157 A GB 2023157A
Authority
GB
United Kingdom
Prior art keywords
preparation
pigment
improved lead
lead chrome
chrome pigment
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.)
Granted
Application number
GB7916719A
Other versions
GB2023157B (en
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB7916719A priority Critical patent/GB2023157B/en
Publication of GB2023157A publication Critical patent/GB2023157A/en
Application granted granted Critical
Publication of GB2023157B publication Critical patent/GB2023157B/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
    • C09C1/14—Compounds of lead
    • C09C1/20—Lead chromate
    • 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
    • C09C3/063—Coating
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • 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
    • 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)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Abstract

A process for the preparation of an improved lead chrome pigment which comprises the addition to a slurry of the pigment, after precipitation and ageing of the pigment and before the application of any superficial coating, of a sufficient amount of a water-soluble chromate salt to reduce the concentration of lead dissolved in the slurry to a level not greater than 0.001M.
GB7916719A 1978-06-13 1979-05-14 Process for the preparation od lead chrome pigment Expired GB2023157B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7916719A GB2023157B (en) 1978-06-13 1979-05-14 Process for the preparation od lead chrome pigment

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7826788 1978-06-13
GB7916719A GB2023157B (en) 1978-06-13 1979-05-14 Process for the preparation od lead chrome pigment

Publications (2)

Publication Number Publication Date
GB2023157A true GB2023157A (en) 1979-12-28
GB2023157B GB2023157B (en) 1982-10-20

Family

ID=26267959

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7916719A Expired GB2023157B (en) 1978-06-13 1979-05-14 Process for the preparation od lead chrome pigment

Country Status (1)

Country Link
GB (1) GB2023157B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989008131A1 (en) * 1988-02-26 1989-09-08 Dr. Hans Heubach Gmbh & Co. Kg Improved chrome yellow and molybdenum orange pigments, process for producing them, and their use

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989008131A1 (en) * 1988-02-26 1989-09-08 Dr. Hans Heubach Gmbh & Co. Kg Improved chrome yellow and molybdenum orange pigments, process for producing them, and their use

Also Published As

Publication number Publication date
GB2023157B (en) 1982-10-20

Similar Documents

Publication Publication Date Title
DE2963119D1 (en) Process for the preparation of aqueous dispersions or solutions of polyurethane-polyurea and their use
DE2960548D1 (en) Process for the preparation of aqueous solutions or dispersions of polyurethanes and their use for the preparation of coatings or lacquers
DE2966089D1 (en) Aqueous coating composition for providing enteric coatings on solid dosage forms and method for applying it to solid dosage forms
GB2022653B (en) Well treatment with emulsion dispersions
YU110881A (en) Process for obtaining stable aqueous polymeric dispersions
JPS5354238A (en) Radiant hardenable aqueous emulsion coating composition
JPS5496530A (en) Aqueous dye composition of dye little soluble in water
JPS54152633A (en) Addition composition for acidic zinc plating and plating method using same
DE3261867D1 (en) Water soluble monoazocompounds, process for their preparation and their use as dyestuffs
GB2030989B (en) Aqueous low gloss pigmented coating compositions
DE2960756D1 (en) Metallic chromate pigment compositions and process for preparing them
AU526816B2 (en) Sealing anodised aluminium
GB2023157A (en) Process for the Preparation of an Improved Lead Chrome Pigment
DE2962851D1 (en) Aqueous copolymer dispersions produced by a special process, process for their production and their use as binding agents in aqueous paints
DE3268459D1 (en) Water soluble 1:2 metal complex azo compounds, process for their preparation and their use as dyestuffs
JPS5624465A (en) Aqueous coating composition and electrodeposition bath
PT69090A (en) Process for coating an underwater surface and coating as applied by such process
GB2037845B (en) Aqueous polymer solutions for well treating methods
JPS53102273A (en) Treating method for powdery substance containing chromium
EP0013257A3 (en) Stabilized cyanine dyestuffs, process for their preparation and their use
GB2020608A (en) Process for dyeing zinc and zinc alloys
JPS5341330A (en) Adhesion method
GB1556869A (en) Process for coating zinc or zinc alloy surface
DE2860135D1 (en) Metal complexes, process for their preparation and their application as pigments
JPS5245544A (en) Process for black chromate treating zinc

Legal Events

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