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FI20105500A7 - Process for the preparation of gypsym - Google Patents

Process for the preparation of gypsym Download PDF

Info

Publication number
FI20105500A7
FI20105500A7 FI20105500A FI20105500A FI20105500A7 FI 20105500 A7 FI20105500 A7 FI 20105500A7 FI 20105500 A FI20105500 A FI 20105500A FI 20105500 A FI20105500 A FI 20105500A FI 20105500 A7 FI20105500 A7 FI 20105500A7
Authority
FI
Finland
Prior art keywords
water
gypsym
preparation
absence
soluble
Prior art date
Application number
FI20105500A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20105500A0 (en
FI20105500L (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 FI20105500A priority Critical patent/FI20105500L/en
Publication of FI20105500A0 publication Critical patent/FI20105500A0/en
Priority to PCT/FI2011/050424 priority patent/WO2011141630A1/en
Publication of FI20105500A7 publication Critical patent/FI20105500A7/en
Publication of FI20105500L publication Critical patent/FI20105500L/en

Links

Classifications

    • 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
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
    • 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
    • C01F11/20—Halides
    • C01F11/24—Chlorides
    • 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
    • C01F11/36—Nitrates
    • 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
    • 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
    • C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
    • C01P2004/12—Particle morphology extending in one dimension, e.g. needle-like with a cylindrical shape
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/39—Particle morphology extending in three dimensions parallelepiped-like
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

Uppfinningen avser ett förfarande för framställning av gips, varvid en vattenlöslig kalciumförening och en vattenlöslig sulfatförening blandas i frånvaro av eller i essentiell frånvaro av fritt vatten, så att gipskristallerna fälls ut, varvid åtminstone en av kalcium- och sulfatföreningarna föreligger i form av hydrat.The invention relates to a process for producing gypsum, wherein a water-soluble calcium compound and a water-soluble sulfate compound are mixed in the absence or essential absence of free water, so that gypsum crystals are precipitated, wherein at least one of the calcium and sulfate compounds is present in the form of a hydrate.

FI20105500A 2010-05-10 2010-05-10 Method for making plaster FI20105500L (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI20105500A FI20105500L (en) 2010-05-10 2010-05-10 Method for making plaster
PCT/FI2011/050424 WO2011141630A1 (en) 2010-05-10 2011-05-09 Process for the preparation of gypsym

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20105500A FI20105500L (en) 2010-05-10 2010-05-10 Method for making plaster

Publications (3)

Publication Number Publication Date
FI20105500A0 FI20105500A0 (en) 2010-05-10
FI20105500A7 true FI20105500A7 (en) 2011-11-11
FI20105500L FI20105500L (en) 2011-11-11

Family

ID=42234285

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20105500A FI20105500L (en) 2010-05-10 2010-05-10 Method for making plaster

Country Status (2)

Country Link
FI (1) FI20105500L (en)
WO (1) WO2011141630A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE562385C (en) * 1930-07-12 1932-10-25 Peter Spence & Sons Ltd Process for the production of anhydrous, finely divided calcium sulfate
GB9916601D0 (en) 1999-07-16 1999-09-15 Biocomposites Ltd Calcium sulphate
US6517790B1 (en) * 2002-03-18 2003-02-11 Alcoa Inc. Converting fluorgyp to calcium sulfate
FI20070093A0 (en) 2007-02-02 2007-02-02 Kemira Oyj Plaster product and process for making the same

Also Published As

Publication number Publication date
WO2011141630A1 (en) 2011-11-17
FI20105500A0 (en) 2010-05-10
FI20105500L (en) 2011-11-11

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