ZA862511B - Process for the treatment of alpha-form calcium sulphate hemihydrate and product obtained - Google Patents

Process for the treatment of alpha-form calcium sulphate hemihydrate and product obtained

Info

Publication number
ZA862511B
ZA862511B ZA862511A ZA862511A ZA862511B ZA 862511 B ZA862511 B ZA 862511B ZA 862511 A ZA862511 A ZA 862511A ZA 862511 A ZA862511 A ZA 862511A ZA 862511 B ZA862511 B ZA 862511B
Authority
ZA
South Africa
Prior art keywords
alpha
treatment
product obtained
calcium sulphate
sulphate hemihydrate
Prior art date
Application number
ZA862511A
Other languages
English (en)
Inventor
Michal Sart
Hanneke Vaessen
Original Assignee
Prayon Rupel Soc Chimique
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 Soc Chimique filed Critical Prayon Rupel Soc Chimique
Publication of ZA862511B publication Critical patent/ZA862511B/xx

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)
ZA862511A 1985-12-23 1986-04-04 Process for the treatment of alpha-form calcium sulphate hemihydrate and product obtained ZA862511B (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ZA862511B true ZA862511B (en) 1987-12-30

Family

ID=8194741

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA862511A ZA862511B (en) 1985-12-23 1986-04-04 Process for the treatment of alpha-form calcium sulphate hemihydrate and product obtained

Country Status (6)

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

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 (xx) * 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
EP0226690B1 (fr) 1992-03-11
JPS62148321A (ja) 1987-07-02
DK130486A (da) 1987-06-24
DK167350B1 (da) 1993-10-18
EP0226690A1 (fr) 1987-07-01
DK130486D0 (da) 1986-03-21
JP2737872B2 (ja) 1998-04-08
DE3585627D1 (de) 1992-04-16
ATE73425T1 (de) 1992-03-15

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