GB903345A - Process for the manufacture of finely divided calcium carbonate - Google Patents

Process for the manufacture of finely divided calcium carbonate

Info

Publication number
GB903345A
GB903345A GB3469360A GB3469360A GB903345A GB 903345 A GB903345 A GB 903345A GB 3469360 A GB3469360 A GB 3469360A GB 3469360 A GB3469360 A GB 3469360A GB 903345 A GB903345 A GB 903345A
Authority
GB
United Kingdom
Prior art keywords
gas
suspension
finely divided
calcium carbonate
referred
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
GB3469360A
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Publication of GB903345A publication Critical patent/GB903345A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C01F11/182—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by an additive other than CaCO3-seeds
    • C01F11/183—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by an additive other than CaCO3-seeds the additive being an organic compound
    • 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
    • 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
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • 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
    • C01P2006/19—Oil-absorption capacity, e.g. DBP values
    • 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
    • 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
    • C01P2006/80—Compositional purity
    • C01P2006/82—Compositional purity water content

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

Finely divided calcium carbonate, suitable as a filler for rubber and having a disturbed calcite crystal lattice, is prepared by reacting at 0 DEG to 50 DEG C., preferably at below 30 DEG C., an aqueous Ca(OH)2 suspension containing an alkali metal or alkaline earth metal salt of nitrilotriacetic acid with a gas containing CO2. The suspension preferably contains not more than 1 mol. of Ca(OH)2 per litre, and the CO2-containing gas may be purified combustion gas or lime-kiln gas. CO2 should preferably still be present in the gas after use. 0,01 to 2% by weight of sodium or calcium nitrilotriacetate may be used. The potassium and barium salts are also referred to. In Example 1, a comparison is drawn between the properties of the precipitated CaCO3 obtained with and without the addition of sodium nitrilotriacetate to the Ca(OH)2 suspension. The precipitation of CaCO3 in the presence of polyphosphates, polybasic hydroxycarboxylic acids, and ethylenediamine tetra-acetic acid is referred to.
GB3469360A 1959-10-13 1960-10-10 Process for the manufacture of finely divided calcium carbonate Expired GB903345A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF29598A DE1116203B (en) 1959-10-13 1959-10-13 Process for the production of finely divided calcium carbonate

Publications (1)

Publication Number Publication Date
GB903345A true GB903345A (en) 1962-08-15

Family

ID=7093383

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3469360A Expired GB903345A (en) 1959-10-13 1960-10-10 Process for the manufacture of finely divided calcium carbonate

Country Status (2)

Country Link
DE (1) DE1116203B (en)
GB (1) GB903345A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1215120B (en) * 1963-08-17 1966-04-28 Bray Oil Co Process for the production of colloidal dispersions of calcium carbonate in oil
GB1437950A (en) * 1972-08-22 1976-06-03 Unilever Ltd Detergent compositions
JPS52126697A (en) * 1976-04-16 1977-10-24 Toyo Soda Mfg Co Ltd Production of chain calcium carbonate

Also Published As

Publication number Publication date
DE1116203B (en) 1961-11-02

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