DK130486A - Fremgangsmaade til behandling af alfa-formen af kalciumsulfat-hemihydrat, og anvendelse af et derved vundet produkt - Google Patents

Fremgangsmaade til behandling af alfa-formen af kalciumsulfat-hemihydrat, og anvendelse af et derved vundet produkt Download PDF

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Publication number
DK130486A
DK130486A DK130486A DK130486A DK130486A DK 130486 A DK130486 A DK 130486A DK 130486 A DK130486 A DK 130486A DK 130486 A DK130486 A DK 130486A DK 130486 A DK130486 A DK 130486A
Authority
DK
Denmark
Prior art keywords
calcium sulphate
product
hydrate
treating
procedure
Prior art date
Application number
DK130486A
Other languages
English (en)
Other versions
DK167350B1 (da
DK130486D0 (da
Inventor
Michel Sart
Hanneke Vaessen
Original Assignee
Prayon Rupel Chimique Sa
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 Prayon Rupel Chimique Sa filed Critical Prayon Rupel Chimique Sa
Publication of DK130486D0 publication Critical patent/DK130486D0/da
Publication of DK130486A publication Critical patent/DK130486A/da
Application granted granted Critical
Publication of DK167350B1 publication Critical patent/DK167350B1/da

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B11/00—Calcium sulfate cements
    • C04B11/26—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke
    • 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
    • C01F11/466—Conversion of one form of calcium sulfate to another
    • 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)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
DK130486A 1985-12-23 1986-03-21 Fremgangsmaade til behandling af alfa-formen af kalciumsulfat-hemihydrat, og et produkt indeholdende det derved vundne produkt DK167350B1 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP85870190 1985-12-23
EP85870190A EP0226690B1 (fr) 1985-12-23 1985-12-23 Procédé de traitement du sulfate de calcium hémihydraté forme alpha et produit obtenu

Publications (3)

Publication Number Publication Date
DK130486D0 DK130486D0 (da) 1986-03-21
DK130486A true DK130486A (da) 1987-06-24
DK167350B1 DK167350B1 (da) 1993-10-18

Family

ID=8194741

Family Applications (1)

Application Number Title Priority Date Filing Date
DK130486A DK167350B1 (da) 1985-12-23 1986-03-21 Fremgangsmaade til behandling af alfa-formen af kalciumsulfat-hemihydrat, og et produkt indeholdende det derved vundne produkt

Country Status (6)

Country Link
EP (1) EP0226690B1 (da)
JP (1) JP2737872B2 (da)
AT (1) ATE73425T1 (da)
DE (1) DE3585627D1 (da)
DK (1) DK167350B1 (da)
ZA (1) ZA862511B (da)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108821323A (zh) * 2018-07-16 2018-11-16 西昌学院 一种钙白粉的制备方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1135951A (en) * 1965-02-12 1968-12-11 Fisons Ltd Phosphoric acid
LU49007A1 (da) * 1965-07-07 1967-01-09
GB1169413A (en) * 1967-03-21 1969-11-05 Central Glass Co Ltd A Process for Preparing Gypsum Hemihydrate.
GB1484139A (en) * 1975-04-10 1977-08-24 Fisons Ltd Plaster composition
US4151000A (en) * 1976-01-13 1979-04-24 Produits Chimiques Ugine Kuhlmann Anhydrite binder and method
JPS5333317A (en) * 1976-09-10 1978-03-29 Hitachi Ltd Inverter device for driving motor
JPS5721501A (en) * 1980-07-14 1982-02-04 Reonitsuto Kk Shorts and production thereof

Also Published As

Publication number Publication date
JPS62148321A (ja) 1987-07-02
DE3585627D1 (de) 1992-04-16
DK167350B1 (da) 1993-10-18
DK130486D0 (da) 1986-03-21
ZA862511B (en) 1987-12-30
EP0226690B1 (fr) 1992-03-11
EP0226690A1 (fr) 1987-07-01
JP2737872B2 (ja) 1998-04-08
ATE73425T1 (de) 1992-03-15

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Legal Events

Date Code Title Description
A0 Application filed
B1 Patent granted (law 1993)
PBP Patent lapsed