ATE73425T1 - Verfahren zur behandlung von alpha-calciumsulfat- halbhydrat und nach dem vefahren erhaltenes produkt. - Google Patents

Verfahren zur behandlung von alpha-calciumsulfat- halbhydrat und nach dem vefahren erhaltenes produkt.

Info

Publication number
ATE73425T1
ATE73425T1 AT85870190T AT85870190T ATE73425T1 AT E73425 T1 ATE73425 T1 AT E73425T1 AT 85870190 T AT85870190 T AT 85870190T AT 85870190 T AT85870190 T AT 85870190T AT E73425 T1 ATE73425 T1 AT E73425T1
Authority
AT
Austria
Prior art keywords
treatment
product obtained
calcium sulphate
sulphate hemihydrate
alpha
Prior art date
Application number
AT85870190T
Other languages
English (en)
Inventor
Michel Sart
Hanneke Vaessen
Original Assignee
Prayon Rupel Societe Anonyme S
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 Societe Anonyme S filed Critical Prayon Rupel Societe Anonyme S
Application granted granted Critical
Publication of ATE73425T1 publication Critical patent/ATE73425T1/de

Links

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)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
AT85870190T 1985-12-23 1985-12-23 Verfahren zur behandlung von alpha-calciumsulfat- halbhydrat und nach dem vefahren erhaltenes produkt. ATE73425T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP85870190A EP0226690B1 (de) 1985-12-23 1985-12-23 Verfahren zur Behandlung von alpha-Calciumsulfat-Halbhydrat und nach dem Vefahren erhaltenes Produkt

Publications (1)

Publication Number Publication Date
ATE73425T1 true ATE73425T1 (de) 1992-03-15

Family

ID=8194741

Family Applications (1)

Application Number Title Priority Date Filing Date
AT85870190T ATE73425T1 (de) 1985-12-23 1985-12-23 Verfahren zur behandlung von alpha-calciumsulfat- halbhydrat und nach dem vefahren erhaltenes produkt.

Country Status (6)

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

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 (de) * 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
DK130486A (da) 1987-06-24
EP0226690A1 (de) 1987-07-01
EP0226690B1 (de) 1992-03-11
JP2737872B2 (ja) 1998-04-08
ZA862511B (en) 1987-12-30
JPS62148321A (ja) 1987-07-02
DE3585627D1 (de) 1992-04-16
DK130486D0 (da) 1986-03-21
DK167350B1 (da) 1993-10-18

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee