ATE98661T1 - Verfahren zum bleichen. - Google Patents

Verfahren zum bleichen.

Info

Publication number
ATE98661T1
ATE98661T1 AT91202712T AT91202712T ATE98661T1 AT E98661 T1 ATE98661 T1 AT E98661T1 AT 91202712 T AT91202712 T AT 91202712T AT 91202712 T AT91202712 T AT 91202712T AT E98661 T1 ATE98661 T1 AT E98661T1
Authority
AT
Austria
Prior art keywords
bleaching
keeping
aqueous solution
contact
hydrogen peroxide
Prior art date
Application number
AT91202712T
Other languages
English (en)
Inventor
Pia Hellstroem
Ivan Dalin
Steen Linderstroem-Lang
Original Assignee
Eka Nobel Ab
Faxe Kalk
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=ATE98661(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Eka Nobel Ab, Faxe Kalk filed Critical Eka Nobel Ab
Application granted granted Critical
Publication of ATE98661T1 publication Critical patent/ATE98661T1/de

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)
  • Composite Materials (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Paper (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
AT91202712T 1990-10-29 1991-10-21 Verfahren zum bleichen. ATE98661T1 (de)

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
ATE98661T1 true ATE98661T1 (de) 1994-01-15

Family

ID=20380760

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91202712T ATE98661T1 (de) 1990-10-29 1991-10-21 Verfahren zum bleichen.

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
FI103801B (fi) * 1998-02-24 1999-09-30 Kemira Oyj 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
SE469475B (sv) 1993-07-12
US5188814A (en) 1993-02-23
SE9003440L (sv) 1992-04-30
FI915076L (fi) 1992-04-30
DK0483902T3 (da) 1994-04-18
DE69100801D1 (de) 1994-01-27
DE69100801T2 (de) 1994-04-21
FI97972B (fi) 1996-12-13
EP0483902B1 (de) 1993-12-15
EP0483902A1 (de) 1992-05-06
FI97972C (fi) 1997-03-25
SE9003440D0 (sv) 1990-10-29
FI915076A0 (fi) 1991-10-28

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties