SE303003B - - Google Patents

Info

Publication number
SE303003B
SE303003B SE1293764A SE1293764A SE303003B SE 303003 B SE303003 B SE 303003B SE 1293764 A SE1293764 A SE 1293764A SE 1293764 A SE1293764 A SE 1293764A SE 303003 B SE303003 B SE 303003B
Authority
SE
Sweden
Prior art keywords
carbonate
whiteness
salt
degree
improved
Prior art date
Application number
SE1293764A
Inventor
D Strauch
Original Assignee
Pluss Stauffer 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 Pluss Stauffer Ag filed Critical Pluss Stauffer Ag
Publication of SE303003B publication Critical patent/SE303003B/xx

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)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (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.
SE1293764A 1963-10-28 1964-10-27 SE303003B (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
SE303003B true SE303003B (en) 1968-08-12

Family

ID=7372956

Family Applications (1)

Application Number Title Priority Date Filing Date
SE1293764A SE303003B (en) 1963-10-28 1964-10-27

Country Status (10)

Country Link
AT (2) AT262471B (en)
BE (1) BE654931A (en)
CH (2) CH486548A (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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5188814A (en) * 1990-10-29 1993-02-23 Eka Nobel Ab Method of bleaching

Families Citing this family (10)

* 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
DE3122218A1 (en) * 1981-06-04 1982-12-23 Peroxid-Chemie GmbH, 8023 Höllriegelskreuth METHOD FOR BRIGHTENING 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
US4935391A (en) * 1989-03-31 1990-06-19 Fmc Corporation Process for preparing a purified mineral coating

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5188814A (en) * 1990-10-29 1993-02-23 Eka Nobel Ab Method of bleaching

Also Published As

Publication number Publication date
FR1420612A (en) 1965-12-10
NL133420C (en) 1971-09-15
CH486548A (en) 1970-02-28
FI42231B (en) 1970-03-02
DK108261C (en) 1967-10-30
DE1467470C2 (en) 1974-06-12
NL6412530A (en) 1965-04-29
AT262471B (en) 1968-06-10
BE654931A (en) 1965-02-15
GB1069276A (en) 1967-05-17
CH433554A (en) 1967-04-15
AT257777B (en) 1967-10-25
DE1467470A1 (en) 1968-12-19

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