GB1069276A - An improved process for the purification of white mineral carbonates - Google Patents

An improved process for the purification of white mineral carbonates

Info

Publication number
GB1069276A
GB1069276A GB4388565A GB4388565A GB1069276A GB 1069276 A GB1069276 A GB 1069276A GB 4388565 A GB4388565 A GB 4388565A GB 4388565 A GB4388565 A GB 4388565A GB 1069276 A GB1069276 A GB 1069276A
Authority
GB
United Kingdom
Prior art keywords
carbonate
purification
improved
whiteness
improved process
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
GB4388565A
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.)
Omya AG
Original Assignee
Pluess Staufer AG
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 Pluess Staufer AG filed Critical Pluess Staufer AG
Publication of GB1069276A publication Critical patent/GB1069276A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/04—Clay; Kaolin
    • C04B33/06—Rendering lime harmless
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/18—Carbonates
    • C01F11/185—After-treatment, e.g. grinding, purification, conversion of crystal morphology
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/30—Drying methods
    • 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
    • C09C1/02—Compounds of alkaline earth metals or magnesium
    • C09C1/021—Calcium carbonates
    • 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
    • C09C1/02—Compounds of alkaline earth metals or magnesium
    • C09C1/021—Calcium carbonates
    • C09C1/022—Treatment with inorganic compounds
    • 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
    • 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)
  • Ceramic Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Detergent Compositions (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

The degree of whiteness of a mineral carbonate containing humic acids which are organic colour-imparting impurities is improved by treating the carbonate at 20-100 DEG C. with a halogen, an oxygen-containing halogen acid, or a salt thereof, e.g. HOCl, HClO4, CaOCl2, CaCl2, NaOCl, or ozone, or oxidizing agents in alkaline media, e.g. H2O2, Cl2, Br2, or transforming into a soluble form, e.g. by a salt of phosphoric acid or a polyphosphoric acid. The degree of whiteness of all mineral carbonate fillers, e.g. calcite, dolomite and chalk, can be improved. Treatment may be carried out in an aqueous medium, thereafter separating the carbonate, washing and drying it.
GB4388565A 1963-10-28 1964-10-28 An improved process for the purification of white mineral carbonates Expired GB1069276A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1963P0032866 DE1467470C2 (en) 1963-10-28 1963-10-28 Improvement of the whiteness of chalk, calcite or dolomite

Publications (1)

Publication Number Publication Date
GB1069276A true GB1069276A (en) 1967-05-17

Family

ID=7372956

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4388565A Expired GB1069276A (en) 1963-10-28 1964-10-28 An improved process for the purification of white mineral carbonates

Country Status (10)

Country Link
AT (2) AT257777B (en)
BE (1) BE654931A (en)
CH (2) CH433554A (en)
DE (1) DE1467470C2 (en)
DK (1) DK108261C (en)
FI (1) FI42231B (en)
FR (1) FR1420612A (en)
GB (1) GB1069276A (en)
NL (1) NL133420C (en)
SE (1) SE303003B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4572825A (en) * 1981-06-04 1986-02-25 Peroxide-Chemie Gmbh Process for bleaching natural chalk
US4793985A (en) * 1982-08-23 1988-12-27 J. M. Huber Corporation Method of producing ultrafine ground calcium carbonate
US4824653A (en) * 1988-09-29 1989-04-25 Franklin Industries, Inc. Method of bleaching limestone
EP0390257A1 (en) * 1989-03-31 1990-10-03 FMC Corporation Process for preparing a purified mineral coating
EP0483902A1 (en) * 1990-10-29 1992-05-06 Eka Nobel Ab Method of bleaching

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659708A (en) * 1968-11-04 1972-05-02 Freeport Sulphur Co Separation of discolorants from clay
US3616900A (en) * 1969-07-09 1971-11-02 Engelhard Min & Chem Method for bleaching gray kaolin clay
SE417104B (en) * 1978-10-30 1981-02-23 Supra Ab SET TO CLEAN RESPECTIVE PINK POLLUTANED CALCIUM SULPHATE INTENDED TO BE USED AS PIGMENT AND / OR FILLER
FR2446256A1 (en) * 1979-01-12 1980-08-08 Azote & Prod Chim CHEMICAL GYPSUM PURIFICATION PROCESS
DE3014620A1 (en) * 1980-04-16 1981-10-29 MD Papierfabriken Heinrich Nicolaus GmbH, 8060 Dachau Modified calcium carbonate contg. other cations of specified radius - has increased acid resistance and is useful in paper mfr.
DE3014622A1 (en) * 1980-04-16 1981-10-29 MD Papierfabriken Heinrich Nicolaus GmbH, 8060 Dachau Filled paper for laminate contg. modified calcium carbonate - in which calcium is partly replaced by other metal cations

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4572825A (en) * 1981-06-04 1986-02-25 Peroxide-Chemie Gmbh Process for bleaching natural chalk
US4793985A (en) * 1982-08-23 1988-12-27 J. M. Huber Corporation Method of producing ultrafine ground calcium carbonate
US4824653A (en) * 1988-09-29 1989-04-25 Franklin Industries, Inc. Method of bleaching limestone
EP0390257A1 (en) * 1989-03-31 1990-10-03 FMC Corporation Process for preparing a purified mineral coating
EP0483902A1 (en) * 1990-10-29 1992-05-06 Eka Nobel Ab Method of bleaching
US5188814A (en) * 1990-10-29 1993-02-23 Eka Nobel Ab Method of bleaching

Also Published As

Publication number Publication date
NL6412530A (en) 1965-04-29
CH486548A (en) 1970-02-28
FR1420612A (en) 1965-12-10
CH433554A (en) 1967-04-15
DE1467470A1 (en) 1968-12-19
DE1467470C2 (en) 1974-06-12
AT257777B (en) 1967-10-25
AT262471B (en) 1968-06-10
DK108261C (en) 1967-10-30
BE654931A (en) 1965-02-15
NL133420C (en) 1971-09-15
FI42231B (en) 1970-03-02
SE303003B (en) 1968-08-12

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