DK0483902T3 - Fremgangsmåde til blegning - Google Patents

Fremgangsmåde til blegning

Info

Publication number
DK0483902T3
DK0483902T3 DK91202712.5T DK91202712T DK0483902T3 DK 0483902 T3 DK0483902 T3 DK 0483902T3 DK 91202712 T DK91202712 T DK 91202712T DK 0483902 T3 DK0483902 T3 DK 0483902T3
Authority
DK
Denmark
Prior art keywords
bleaching
keeping
aqueous solution
contact
hydrogen peroxide
Prior art date
Application number
DK91202712.5T
Other languages
Danish (da)
English (en)
Inventor
Ivan Dalin
Pia Hellstroem
Steen Linderstroem-Lang
Original Assignee
Faxe Kalk
Eka Chemicals Ab
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20380760&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK0483902(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Faxe Kalk, Eka Chemicals Ab filed Critical Faxe Kalk
Application granted granted Critical
Publication of DK0483902T3 publication Critical patent/DK0483902T3/da

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
    • C09C1/0081—Composite particulate pigments or fillers, i.e. containing at least two solid phases, except those consisting of coated particles of one compound
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/675—Oxides, hydroxides or carbonates
    • 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
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 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
    • C01P2006/60—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Composite Materials (AREA)
  • Detergent Compositions (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Paper (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
DK91202712.5T 1990-10-29 1991-10-21 Fremgangsmåde til blegning DK0483902T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9003440A SE469475B (sv) 1990-10-29 1990-10-29 Saett att bleka partiklar innehaallande kalciumkarbonat

Publications (1)

Publication Number Publication Date
DK0483902T3 true DK0483902T3 (da) 1994-04-18

Family

ID=20380760

Family Applications (1)

Application Number Title Priority Date Filing Date
DK91202712.5T DK0483902T3 (da) 1990-10-29 1991-10-21 Fremgangsmåde til blegning

Country Status (7)

Country Link
US (1) US5188814A (de)
EP (1) EP0483902B1 (de)
AT (1) ATE98661T1 (de)
DE (1) DE69100801T2 (de)
DK (1) DK0483902T3 (de)
FI (1) FI97972C (de)
SE (1) SE469475B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI103801B1 (fi) * 1998-02-24 1999-09-30 Kemira Chemicals Oy Menetelmä pigmenttien valkaisemiseksi
US7105139B2 (en) * 2002-04-25 2006-09-12 Imerys Pigments, Inc. Stabilization of the viscosity of formamidine sulfinic acid bleached calcium carbonate slurries
US10590003B1 (en) 2017-08-24 2020-03-17 Mississippi Lime Company Method of brightening ground calcium carbonate

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL85909C (de) * 1951-02-08
DE1467470C2 (de) * 1963-10-28 1974-06-12 Pluess-Staufer Ag, Oftringen, Aargau (Schweiz) Verbesserung des Weiß grades von Kreide, Calcit oder Dolomit
US3333919A (en) * 1965-02-09 1967-08-01 John S Buckingham Strontium recovery process
GB1264190A (de) * 1969-10-09 1972-02-16
SE417104B (sv) * 1978-10-30 1981-02-23 Supra Ab Sett att rena respektive bleka fororenat kalciumsulfat avsedd att anvendas som pigment och/eller fyllmedel
DE3122218A1 (de) * 1981-06-04 1982-12-23 Peroxid-Chemie GmbH, 8023 Höllriegelskreuth Verfahren zum aufhellen von naturkreide
US4793985A (en) * 1982-08-23 1988-12-27 J. M. Huber Corporation Method of producing ultrafine ground calcium carbonate
FR2570721B1 (fr) * 1984-09-25 1988-01-08 Condat Papeteries Procede permettant la valorisation des boues de chaux dans le cycle de caustification du procede kraft
GB8711094D0 (en) * 1987-05-11 1987-06-17 Ecc Int Ltd Natural calcium carbonate ores
US4935391A (en) * 1989-03-31 1990-06-19 Fmc Corporation Process for preparing a purified mineral coating

Also Published As

Publication number Publication date
FI97972B (fi) 1996-12-13
FI97972C (fi) 1997-03-25
FI915076A0 (fi) 1991-10-28
SE9003440L (sv) 1992-04-30
US5188814A (en) 1993-02-23
FI915076L (fi) 1992-04-30
SE9003440D0 (sv) 1990-10-29
EP0483902B1 (de) 1993-12-15
EP0483902A1 (de) 1992-05-06
DE69100801D1 (de) 1994-01-27
ATE98661T1 (de) 1994-01-15
DE69100801T2 (de) 1994-04-21
SE469475B (sv) 1993-07-12

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