GB1530451A - Production of gypsum from by-product calcium sulphate - Google Patents

Production of gypsum from by-product calcium sulphate

Info

Publication number
GB1530451A
GB1530451A GB2849/75A GB284975A GB1530451A GB 1530451 A GB1530451 A GB 1530451A GB 2849/75 A GB2849/75 A GB 2849/75A GB 284975 A GB284975 A GB 284975A GB 1530451 A GB1530451 A GB 1530451A
Authority
GB
United Kingdom
Prior art keywords
calcium sulphate
gypsum
production
hemihydrate
product calcium
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB2849/75A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BPB Ltd
Original Assignee
BPB Industries PLC
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 PLC filed Critical BPB Industries PLC
Priority to GB2849/75A priority Critical patent/GB1530451A/en
Priority to SE7600595A priority patent/SE414761B/xx
Priority to DK24576AA priority patent/DK141697B/da
Publication of GB1530451A publication Critical patent/GB1530451A/en
Expired legal-status Critical Current

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
    • 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)
GB2849/75A 1975-01-22 1975-01-22 Production of gypsum from by-product calcium sulphate Expired GB1530451A (en)

Priority Applications (3)

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
SE7600595A SE414761B (sv) 1975-01-22 1976-01-21 Forfarande vid hydratisering av som biprodukt erhallet kalciumsulfat-alfa-hemihydrat med vatten
DK24576AA DK141697B (da) 1975-01-22 1976-01-22 Fremgangsmåde til hydratisering af calciumsulfat-alfa-hemihydrat med vand.

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1530451A true GB1530451A (en) 1978-11-01

Family

ID=9747127

Family Applications (1)

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

Country Status (3)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0334292A1 (fr) * 1988-03-24 1989-09-27 Lafarge Coppee S.A. Procédé de préparation de sulfate de calcium dihydraté à structure cristalline longiligne dotée d'une longueur et d'un facteur de forme maitrisés

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0334292A1 (fr) * 1988-03-24 1989-09-27 Lafarge Coppee S.A. Procédé de préparation de sulfate de calcium dihydraté à structure cristalline longiligne dotée d'une longueur et d'un facteur de forme maitrisés
FR2629069A1 (fr) * 1988-03-24 1989-09-29 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
WO1989009187A1 (fr) * 1988-03-24 1989-10-05 Platres Lafarge S.A. 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
DK141697B (da) 1980-05-27
SE414761B (sv) 1980-08-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19960121