GB1001881A - Process for modifying calcium carbonate - Google Patents

Process for modifying calcium carbonate

Info

Publication number
GB1001881A
GB1001881A GB4033861A GB4033861A GB1001881A GB 1001881 A GB1001881 A GB 1001881A GB 4033861 A GB4033861 A GB 4033861A GB 4033861 A GB4033861 A GB 4033861A GB 1001881 A GB1001881 A GB 1001881A
Authority
GB
United Kingdom
Prior art keywords
calcium carbonate
carbonate
alkali
modified
suspensions
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
GB4033861A
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of GB1001881A publication Critical patent/GB1001881A/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
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/38—Coatings with pigments characterised by the pigments
    • D21H19/385—Oxides, hydroxides or carbonates
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/64—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
    • C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability

Abstract

Modified calcium carbonate is obtained by heating at a temperature higher than 50 DEG C. a suspension of calcium carbonate together with an aqueous solution of an alkali carbonate, which is defined as being sodium carbonate, potassium carbonate or ammonium carbonate and which is present in an amount sufficient to provide from 1 to 50% by weight of the alkali carbonate based on the calcium carbonate; the modified calcium carbonate being then separated from the liquid and dried. The modified calcium carbonate thus produced, can be used to produce aqueous suspensions of calcium carbonate containing at least one part of calcium carbonate to one part of water, these suspensions have a uniform flowing power.
GB4033861A 1960-11-12 1961-11-10 Process for modifying calcium carbonate Expired GB1001881A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED34726A DE1188423B (en) 1960-11-12 1960-11-12 Process for the production of white pigments on the basis of calcium carbonate for paper coating colors

Publications (1)

Publication Number Publication Date
GB1001881A true GB1001881A (en) 1965-08-18

Family

ID=7042312

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4033861A Expired GB1001881A (en) 1960-11-12 1961-11-10 Process for modifying calcium carbonate

Country Status (2)

Country Link
DE (1) DE1188423B (en)
GB (1) GB1001881A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2292701A1 (en) * 2009-07-01 2011-03-09 Omya Development AG Method for improving opacity

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2292701A1 (en) * 2009-07-01 2011-03-09 Omya Development AG Method for improving opacity
US8821628B2 (en) 2009-07-01 2014-09-02 Omya International Ag Method for improving opacity

Also Published As

Publication number Publication date
DE1188423B (en) 1965-03-04

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