GB2023157A – Process for the Preparation of an Improved Lead Chrome Pigment
– Google Patents
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
1978-06-13
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.)
1978-06-13
Filing date
1979-05-14
Publication date
1979-12-28
1979-05-14
Application filed by Imperial Chemical Industries Ltd
filed
Critical
Imperial Chemical Industries Ltd
1979-05-14
Priority to GB7916719A
priority
Critical
patent/GB2023157B/en
1979-12-28
Publication of GB2023157A
publication
Critical
patent/GB2023157A/en
1982-10-20
Application granted
granted
Critical
1982-10-20
Publication of GB2023157B
publication
Critical
patent/GB2023157B/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
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
1979
1979-05-14
GB
GB7916719A
patent/GB2023157B/en
not_active
Expired
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
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Legal Events
Date
Code
Title
Description
1987-01-07
PCNP
Patent ceased through non-payment of renewal fee
