DK141697B - Fremgangsmåde til hydratisering af calciumsulfat-alfa-hemihydrat med vand. - Google Patents

Fremgangsmåde til hydratisering af calciumsulfat-alfa-hemihydrat med vand. Download PDF

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Publication number
DK141697B
DK141697B DK24576AA DK24576A DK141697B DK 141697 B DK141697 B DK 141697B DK 24576A A DK24576A A DK 24576AA DK 24576 A DK24576 A DK 24576A DK 141697 B DK141697 B DK 141697B
Authority
DK
Denmark
Prior art keywords
hemihydrate
water
calcium sulfate
hydration
alpha hemihydrate
Prior art date
Application number
DK24576AA
Other languages
Danish (da)
English (en)
Other versions
DK24576A (enExample
DK141697C (enExample
Inventor
Kenneth Wood Jones
David John Hazeldine
Original Assignee
Bpb Industries Ltd
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 Bpb Industries Ltd filed Critical Bpb Industries Ltd
Publication of DK24576A publication Critical patent/DK24576A/da
Publication of DK141697B publication Critical patent/DK141697B/da
Application granted granted Critical
Publication of DK141697C publication Critical patent/DK141697C/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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
    • C04B28/145—Calcium sulfate hemi-hydrate with a specific crystal form
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
DK24576AA 1975-01-22 1976-01-22 Fremgangsmåde til hydratisering af calciumsulfat-alfa-hemihydrat med vand. DK141697B (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2849/75A GB1530451A (en) 1975-01-22 1975-01-22 Production of gypsum from by-product calcium sulphate
GB284975 1975-01-22

Publications (3)

Publication Number Publication Date
DK24576A DK24576A (enExample) 1976-07-23
DK141697B true DK141697B (da) 1980-05-27
DK141697C DK141697C (enExample) 1980-10-20

Family

ID=9747127

Family Applications (1)

Application Number Title Priority Date Filing Date
DK24576AA DK141697B (da) 1975-01-22 1976-01-22 Fremgangsmåde til hydratisering af calciumsulfat-alfa-hemihydrat med vand.

Country Status (3)

Country Link
DK (1) DK141697B (enExample)
GB (1) GB1530451A (enExample)
SE (1) SE414761B (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2629069B1 (fr) * 1988-03-24 1990-11-23 Lafarge Sa Platres Procede de preparation de sulfate de calcium a structure cristalline longiligne dotee d'une longueur et d'un facteur de forme maitrises

Also Published As

Publication number Publication date
DK24576A (enExample) 1976-07-23
DK141697C (enExample) 1980-10-20
SE7600595L (sv) 1976-07-23
GB1530451A (en) 1978-11-01
SE414761B (sv) 1980-08-18

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PUP Patent expired