FI20105502A0 - Gypsum Product - Google Patents

Gypsum Product

Info

Publication number
FI20105502A0
FI20105502A0 FI20105502A FI20105502A FI20105502A0 FI 20105502 A0 FI20105502 A0 FI 20105502A0 FI 20105502 A FI20105502 A FI 20105502A FI 20105502 A FI20105502 A FI 20105502A FI 20105502 A0 FI20105502 A0 FI 20105502A0
Authority
FI
Finland
Prior art keywords
gypsum
fibre
crystals
composite product
compound
Prior art date
Application number
FI20105502A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20105502L (en
Inventor
Tarja Turkki
Original Assignee
Kemira Oyj
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 Kemira Oyj filed Critical Kemira Oyj
Priority to FI20105502A priority Critical patent/FI20105502L/en
Publication of FI20105502A0 publication Critical patent/FI20105502A0/en
Priority to PCT/FI2011/050426 priority patent/WO2011141632A1/en
Publication of FI20105502L publication Critical patent/FI20105502L/en

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
    • C09C1/025—Calcium sulfates
    • 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
    • C01F11/46—Sulfates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/02—Cellulose; Modified cellulose
    • 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
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/36—Inorganic fibres or flakes
    • 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
    • D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
    • D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
    • D21H15/10—Composite fibres
    • 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
    • D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
    • D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
    • D21H15/10—Composite fibres
    • D21H15/12—Composite fibres partly organic, partly inorganic
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • C01P2004/03—Particle morphology depicted by an image obtained by SEM
    • 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

Abstract

The invention relates to a gypsum-fibre composite product, wherein the gypsum appears as crystals on the surface of the fibre and wherein the gypsum crystals are obtained by mixing a water soluble calcium compound and a water soluble sulphate compound with an aqueous fibre suspension such that the calcium compound and the sulphate compound react to form gypsum crystals. The invention also relates to a process for the preparation of the gypsum-fibre composite product. The composite product can be used as a filler or coating pigment in the production of paper.
FI20105502A 2010-05-10 2010-05-10 Gypsum product FI20105502L (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI20105502A FI20105502L (en) 2010-05-10 2010-05-10 Gypsum product
PCT/FI2011/050426 WO2011141632A1 (en) 2010-05-10 2011-05-09 Gypsum -fibre composite product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20105502A FI20105502L (en) 2010-05-10 2010-05-10 Gypsum product

Publications (2)

Publication Number Publication Date
FI20105502A0 true FI20105502A0 (en) 2010-05-10
FI20105502L FI20105502L (en) 2011-11-11

Family

ID=42234287

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20105502A FI20105502L (en) 2010-05-10 2010-05-10 Gypsum product

Country Status (2)

Country Link
FI (1) FI20105502L (en)
WO (1) WO2011141632A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113511666B (en) * 2020-04-09 2023-03-28 厦门大学 Zero-dimensional and one-dimensional calcium sulfate-based micro-nano composite product and composite material prepared from cement and three wastes as raw materials and synthesis process

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL257174A (en) * 1960-10-29
FI814197L (en) * 1981-01-02 1982-07-03 Enriqueta Galceran Vila FOER FARING FOR FRAMSTAELLNING AND CHARGING AV CRYSTAL PRODUCTS
DE3223178C1 (en) 1982-06-22 1984-03-22 Fels-Werke Peine-Salzgitter Gmbh, 3380 Goslar Process for producing organic fibres coated with mineral substances
US4801355A (en) 1987-01-16 1989-01-31 United States Gypsum Company Tabular acicular gypsum and method of filling paper
FR2629069B1 (en) 1988-03-24 1990-11-23 Lafarge Sa Platres PROCESS FOR THE PREPARATION OF CALCIUM SULPHATE WITH A LONGLINE CRYSTALLINE STRUCTURE HAVING A LENGTH AND A FACTOR OF MASTERED SHAPE
US5096539A (en) * 1989-07-24 1992-03-17 The Board Of Regents Of The University Of Washington Cell wall loading of never-dried pulp fibers
CA2367593C (en) 2001-08-13 2003-02-18 Kruger Inc. Method of reducing the solubility of calcium sulfate dihydrate in an aqueous suspension and method of making the same
FI20055380L (en) 2005-07-01 2007-01-02 M Real Oyj Method for coating cellulose particles, coated cellulose particles and their use in paper and cardboard manufacturing
FI20070093A0 (en) 2007-02-02 2007-02-02 Kemira Oyj Plaster product and process for making the same
FI20085767L (en) 2008-08-11 2010-02-12 Kemira Oyj Gypsum product
FI123287B (en) * 2009-04-20 2013-01-31 Kemira Oyj paper Product

Also Published As

Publication number Publication date
FI20105502L (en) 2011-11-11
WO2011141632A1 (en) 2011-11-17

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Legal Events

Date Code Title Description
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