DE3122218A1 - Verfahren zum aufhellen von naturkreide - Google Patents

Verfahren zum aufhellen von naturkreide

Info

Publication number
DE3122218A1
DE3122218A1 DE19813122218 DE3122218A DE3122218A1 DE 3122218 A1 DE3122218 A1 DE 3122218A1 DE 19813122218 DE19813122218 DE 19813122218 DE 3122218 A DE3122218 A DE 3122218A DE 3122218 A1 DE3122218 A1 DE 3122218A1
Authority
DE
Germany
Prior art keywords
slurry
chalk
hydrogen peroxide
weight
ing
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.)
Ceased
Application number
DE19813122218
Other languages
German (de)
English (en)
Inventor
Heinrich 3201 Söhlde Dammann
Werner 8092 Geretsried Sebb
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.)
United Initiators GmbH and Co KG
Original Assignee
United Initiators GmbH and Co KG
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 United Initiators GmbH and Co KG filed Critical United Initiators GmbH and Co KG
Priority to DE19813122218 priority Critical patent/DE3122218A1/de
Priority to US06/381,990 priority patent/US4572825A/en
Priority to FR8209841A priority patent/FR2507194A1/fr
Priority to GB08216149A priority patent/GB2103197B/en
Publication of DE3122218A1 publication Critical patent/DE3122218A1/de
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Paints Or Removers (AREA)
  • Detergent Compositions (AREA)
DE19813122218 1981-06-04 1981-06-04 Verfahren zum aufhellen von naturkreide Ceased DE3122218A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19813122218 DE3122218A1 (de) 1981-06-04 1981-06-04 Verfahren zum aufhellen von naturkreide
US06/381,990 US4572825A (en) 1981-06-04 1982-05-25 Process for bleaching natural chalk
FR8209841A FR2507194A1 (fr) 1981-06-04 1982-06-02 Procede de blanchiment de craie naturelle
GB08216149A GB2103197B (en) 1981-06-04 1982-06-03 Process for bleaching natural chalk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813122218 DE3122218A1 (de) 1981-06-04 1981-06-04 Verfahren zum aufhellen von naturkreide

Publications (1)

Publication Number Publication Date
DE3122218A1 true DE3122218A1 (de) 1982-12-23

Family

ID=6133915

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813122218 Ceased DE3122218A1 (de) 1981-06-04 1981-06-04 Verfahren zum aufhellen von naturkreide

Country Status (4)

Country Link
US (1) US4572825A (enExample)
DE (1) DE3122218A1 (enExample)
FR (1) FR2507194A1 (enExample)
GB (1) GB2103197B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0483902A1 (en) * 1990-10-29 1992-05-06 Eka Nobel Ab Method of bleaching

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8711094D0 (en) * 1987-05-11 1987-06-17 Ecc Int Ltd Natural calcium carbonate ores
US7105139B2 (en) 2002-04-25 2006-09-12 Imerys Pigments, Inc. Stabilization of the viscosity of formamidine sulfinic acid bleached calcium carbonate slurries

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1467470B (de) * Plüss-Stauffer AG, Oftringen, Aargau (Schweiz) Verbesserung des Weißgrades von Kreide, Calcit oder Dolomit
DE1951742B2 (de) * 1968-10-15 1980-05-14 English Clays Lovering Pochin & Co. Ltd., St. Austell, Cornwall (Ver. Koenigreich) Verfahren zum Bleichen von Erdalkalicarbonaten

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1467470C2 (de) * 1963-10-28 1974-06-12 Pluess-Staufer Ag, Oftringen, Aargau (Schweiz) Verbesserung des Weiß grades von Kreide, Calcit oder Dolomit
US4239736A (en) * 1979-02-26 1980-12-16 Dresser Industries, Inc. Method for increasing the brightness of limestone

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1467470B (de) * Plüss-Stauffer AG, Oftringen, Aargau (Schweiz) Verbesserung des Weißgrades von Kreide, Calcit oder Dolomit
DE1951742B2 (de) * 1968-10-15 1980-05-14 English Clays Lovering Pochin & Co. Ltd., St. Austell, Cornwall (Ver. Koenigreich) Verfahren zum Bleichen von Erdalkalicarbonaten

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Ullmanns Encyklopädie d. techn. Chemie, 3. Aufl., 1953, München, Berlin, 4. Bd., S.536 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4572825A (en) 1986-02-25
GB2103197B (en) 1985-03-06
FR2507194A1 (fr) 1982-12-10
FR2507194B1 (enExample) 1984-08-24
GB2103197A (en) 1983-02-16

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Legal Events

Date Code Title Description
8181 Inventor (new situation)

Free format text: SEBB, WERNER, 8192 GERETSRIED, DE DAMMANN, HEINRICH, 3201 SOEHLDE, DE

8110 Request for examination paragraph 44
8131 Rejection