GB962812A - Process for the production of finely dispersed calcium carbonate - Google Patents

Process for the production of finely dispersed calcium carbonate

Info

Publication number
GB962812A
GB962812A GB3469460A GB3469460A GB962812A GB 962812 A GB962812 A GB 962812A GB 3469460 A GB3469460 A GB 3469460A GB 3469460 A GB3469460 A GB 3469460A GB 962812 A GB962812 A GB 962812A
Authority
GB
United Kingdom
Prior art keywords
silicic acid
calcium carbonate
finely dispersed
sio2
freshly prepared
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
GB3469460A
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 GB962812A publication Critical patent/GB962812A/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
    • C09C1/02—Compounds of alkaline earth metals or magnesium
    • C09C1/021—Calcium carbonates
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/50—Agglomerated particles
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
    • 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

Abstract

Finely dispersed precipitated calcium carbonate having a disturbed calcite lattice, a loose secondary particle structure, and containing silicic acid in an amount corresponding to an SiO2 content of 0.1-20% by weight calculated on CaCO3, is prepared by reacting an aqueous calcium hydroxide suspension of not more than 1.0 molar concentration, at a starting temperature of 10-30 DEG C., with CO2 in the presence of an added aqueous alkali metal silicate solution or of an added freshly prepared silicic acid solution, the latter containing SiO2 ions in a low polymerized state and having an SiO2 content of not more than 10% by weight, and interrupting the supply of CO2 to the suspension upon reaching pH value of from 8.5 to 11 therein. Several sources of freshly prepared silicic acid are mentioned. A water-soluble salt of nitrilotriacetic acid may also be present during the process, and remains in the final product. Specification 903,345 is referred to.
GB3469460A 1959-10-16 1960-10-10 Process for the production of finely dispersed calcium carbonate Expired GB962812A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEF29626A DE1134974B (en) 1959-10-16 1959-10-16 Process for the production of finely divided calcium carbonate
DEF0030746 1960-03-12

Publications (1)

Publication Number Publication Date
GB962812A true GB962812A (en) 1964-07-01

Family

ID=25974452

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3469460A Expired GB962812A (en) 1959-10-16 1960-10-10 Process for the production of finely dispersed calcium carbonate

Country Status (5)

Country Link
JP (1) JPS433487B1 (en)
BE (1) BE595993A (en)
CH (1) CH404618A (en)
DE (1) DE1134974B (en)
GB (1) GB962812A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4847086A (en) * 1984-05-10 1989-07-11 Neutralith Antikaries Gmbh & Co. Kg Agent for increasing the pH value of dental plaque and process for its preparation
CN105836782A (en) * 2016-06-07 2016-08-10 东北石油大学 Calcite type calcium carbonate and preparation method thereof

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3802901A (en) * 1972-09-05 1974-04-09 Fmc Corp Method of forming granular alkaline earth carbonates
GB1481685A (en) * 1973-08-15 1977-08-03 Unilever Ltd Detergent ingredient
FI103664B (en) 1996-09-27 1999-08-13 Betz Guenter A method of recovering calcium from a waste material or an impure natural calcium material
JP3392099B2 (en) 2000-03-03 2003-03-31 日鉄鉱業株式会社 Method for producing silica-calcium carbonate composite particles, and composition or structure containing the particles
CN1705616A (en) 2002-10-15 2005-12-07 丸尾钙株式会社 Agglomerate and resin composition containing the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE958830C (en) * 1951-12-21 1957-02-28 Blanc Omya Sa Du Process for the treatment of natural calcium carbonates

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4847086A (en) * 1984-05-10 1989-07-11 Neutralith Antikaries Gmbh & Co. Kg Agent for increasing the pH value of dental plaque and process for its preparation
CN105836782A (en) * 2016-06-07 2016-08-10 东北石油大学 Calcite type calcium carbonate and preparation method thereof
CN105836782B (en) * 2016-06-07 2017-04-05 东北石油大学 calcite type calcium carbonate and preparation method thereof

Also Published As

Publication number Publication date
JPS433487B1 (en) 1968-02-08
DE1134974B (en) 1962-08-23
CH404618A (en) 1965-12-31
BE595993A (en) 1961-02-01

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