GB856428A - Improvements in or relating to the manufacture of inorganic pigments - Google Patents

Improvements in or relating to the manufacture of inorganic pigments

Info

Publication number
GB856428A
GB856428A GB827056A GB827056A GB856428A GB 856428 A GB856428 A GB 856428A GB 827056 A GB827056 A GB 827056A GB 827056 A GB827056 A GB 827056A GB 856428 A GB856428 A GB 856428A
Authority
GB
United Kingdom
Prior art keywords
sulphide
cadmium
mercury
firing
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.)
Expired
Application number
GB827056A
Inventor
Colin Stuart Harper
Kenneth Alston Alexander
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.)
JAMES M BROWN Ltd
Original Assignee
JAMES M BROWN 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 JAMES M BROWN Ltd filed Critical JAMES M BROWN Ltd
Priority to GB827056A priority Critical patent/GB856428A/en
Priority to BE597956A priority patent/BE597956A/en
Publication of GB856428A publication Critical patent/GB856428A/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
    • C09C1/10—Compounds of cadmium
    • C09C1/12—Cadmium sulfoselenide
    • 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

In a process for producing a pigment by firing cadmium sulphide with mercury sulphide at a temperature of over 400 DEG C., the cadmium and/or mercury sulphide is formed in situ during the firing reaction by the interaction of sulphur with cadmium oxide and/or mercury oxide, or with cadmium and/or mercury compounds which decompose under the influence of heat to produce the oxides. When only one of the sulphides is so produced, the other may be produced by precipitation; if the sulphate of the metal, and barium sulphide, are used, barium sulphate is co-precipitated giving a pigment of the lithopone type. The firing may be carried out under pressure and/or in the presence of an inert gas. The preferred ratio of mercury sulphide to cadmium sulphide is from 10:90 to 30:60. Specification 791,098 is referred to.
GB827056A 1956-03-16 1956-03-16 Improvements in or relating to the manufacture of inorganic pigments Expired GB856428A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB827056A GB856428A (en) 1956-03-16 1956-03-16 Improvements in or relating to the manufacture of inorganic pigments
BE597956A BE597956A (en) 1956-03-16 1960-12-08 Improvements relating to the production of inorganic pigments.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB827056A GB856428A (en) 1956-03-16 1956-03-16 Improvements in or relating to the manufacture of inorganic pigments

Publications (1)

Publication Number Publication Date
GB856428A true GB856428A (en) 1960-12-14

Family

ID=9849270

Family Applications (1)

Application Number Title Priority Date Filing Date
GB827056A Expired GB856428A (en) 1956-03-16 1956-03-16 Improvements in or relating to the manufacture of inorganic pigments

Country Status (2)

Country Link
BE (1) BE597956A (en)
GB (1) GB856428A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3341346A (en) * 1964-02-13 1967-09-12 Hercules Inc Process for the preparation of cadmium yellow pigments

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3341346A (en) * 1964-02-13 1967-09-12 Hercules Inc Process for the preparation of cadmium yellow pigments

Also Published As

Publication number Publication date
BE597956A (en) 1961-03-31

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