GB1534196A - Process for producing a pigment - Google Patents

Process for producing a pigment

Info

Publication number
GB1534196A
GB1534196A GB1943576A GB1943576A GB1534196A GB 1534196 A GB1534196 A GB 1534196A GB 1943576 A GB1943576 A GB 1943576A GB 1943576 A GB1943576 A GB 1943576A GB 1534196 A GB1534196 A GB 1534196A
Authority
GB
United Kingdom
Prior art keywords
solution
iron oxide
temperature
combined
solutions
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
GB1943576A
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.)
Redland Roof Tiles Ltd
Original Assignee
Redland Roof Tiles 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 Redland Roof Tiles Ltd filed Critical Redland Roof Tiles Ltd
Priority to GB1943576A priority Critical patent/GB1534196A/en
Priority to DE19772721013 priority patent/DE2721013A1/en
Publication of GB1534196A publication Critical patent/GB1534196A/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
    • C09C1/22—Compounds of iron
    • C09C1/24—Oxides of iron
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/02—Oxides; Hydroxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/02—Oxides; Hydroxides
    • C01G49/08—Ferroso-ferric oxide [Fe3O4]
    • 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
    • C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability

Landscapes

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

Abstract

1534196 Black iron oxide pigment REDLAND ROOF TILES Ltd 10 May 1977 [11 May 1976] 19435/76 Heading C1A Black iron oxide pigment is made by adding an aqueous solution of an alkali metal hydroxide or ammonia to an aqueous solution of ferrous sulphate which is at a temperature of 64‹ C. or more, maintaining the temperature of the combined solutions above 64‹ C. until the pH is 8À5-10À0 and oxidizing the combined solutions to deposit iron oxide. The ferrous sulphate solution preferably has a starting temperature of 64-100‹ C. and a concentration of at least 35 g/l. The solution added thereto, which is preferably NaOH, is added with continuous stirring to prevent local pH variations and the rate of addition is preferably such that viscosity of the combined solution does not rise above 1000 centipoises. The solutions are suitably oxidized by bubbling air therethrough.
GB1943576A 1976-05-11 1976-05-11 Process for producing a pigment Expired GB1534196A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1943576A GB1534196A (en) 1976-05-11 1976-05-11 Process for producing a pigment
DE19772721013 DE2721013A1 (en) 1976-05-11 1977-05-10 METHOD FOR MANUFACTURING A PIGMENT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1943576A GB1534196A (en) 1976-05-11 1976-05-11 Process for producing a pigment

Publications (1)

Publication Number Publication Date
GB1534196A true GB1534196A (en) 1978-11-29

Family

ID=10129334

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1943576A Expired GB1534196A (en) 1976-05-11 1976-05-11 Process for producing a pigment

Country Status (2)

Country Link
DE (1) DE2721013A1 (en)
GB (1) GB1534196A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4702775A (en) * 1985-06-29 1987-10-27 Basf Aktiengesellschaft Preparation of magnetite pigments: control of particle size
WO2000075071A1 (en) * 1999-06-05 2000-12-14 Bayer Aktiengesellschaft Method of manufacturing metal oxides

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1599716A (en) * 1978-05-17 1981-10-07 Redland Roof Tiles Ltd Process for producing a pigment

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2508155A1 (en) * 1974-02-25 1975-08-28 Montedison Spa Equiaxial magnetite powder prodn. - by two-stage pptn and oxidn of ferrous hydroxide
DE2618058A1 (en) * 1976-04-24 1977-11-10 Bayer Ag PROCESS FOR CONTINUOUS PRODUCTION OF IRON OXIDE BLACK PIGMENTS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4702775A (en) * 1985-06-29 1987-10-27 Basf Aktiengesellschaft Preparation of magnetite pigments: control of particle size
WO2000075071A1 (en) * 1999-06-05 2000-12-14 Bayer Aktiengesellschaft Method of manufacturing metal oxides

Also Published As

Publication number Publication date
DE2721013A1 (en) 1977-11-24

Similar Documents

Publication Publication Date Title
GB1189863A (en) Treatment of Geological Formations
GB1349582A (en) Process for oxidation of dihydroquinacridones to quinacridones
AR241416A1 (en) Process for preparing an iron oxide
GB1535889A (en) Continuous production of iron oxide black pigments
GB1534196A (en) Process for producing a pigment
GB1271449A (en) Production of iron oxide pigments
GB1456948A (en) Process for the manufacture of carbonated zirconium oxide hydrate
GB1526670A (en) Prussian blue nacreous coated pigments
GB1516162A (en) Process for recovering metal values from manganese module
GB1051915A (en)
GB1438064A (en) Process for the production of berlin blue
GB1381837A (en) Process for the manufacture of triacetone-amine
GB1479581A (en) Method for producing alkali metal gold sulphites
GB1530899A (en) Process for producing a pigment
JPS53132499A (en) Production of chromium hydroxide
ES8202049A1 (en) The production of a yellow iron oxide pigment.
GB1469907A (en) Method for preparing bis-2-pyridyl-1-oxide- disulphide
GB1291342A (en) Improvements in or relating to the production of benzaldehyde
GB1492050A (en) Process for the production of berlin blue
GB1363288A (en) Reduction of the trivalent chromium content of an aqueous alkali metal bisulphate solution
GB1150135A (en) Silica pigments and process for producing same.
GB1491648A (en) Production of synthetic fluorspar
GB1379871A (en) Continuous process for preparing benzothiazyl disulphide
GB1132440A (en) Iron oxide preparation
GB1438340A (en) Process for production of alkali metal chromates

Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19970509