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GB2047675A - Method of preparing gypsum articles - Google Patents

Method of preparing gypsum articles

Info

Publication number
GB2047675A
GB2047675A GB8005042A GB8005042A GB2047675A GB 2047675 A GB2047675 A GB 2047675A GB 8005042 A GB8005042 A GB 8005042A GB 8005042 A GB8005042 A GB 8005042A GB 2047675 A GB2047675 A GB 2047675A
Authority
GB
United Kingdom
Prior art keywords
potassium
plaster
articles
water slurry
preparing gypsum
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.)
Granted
Application number
GB8005042A
Other versions
GB2047675B (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.)
Tenax Maskin AB
Original Assignee
Tenax Maskin AB
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 Tenax Maskin AB filed Critical Tenax Maskin AB
Publication of GB2047675A publication Critical patent/GB2047675A/en
Application granted granted Critical
Publication of GB2047675B publication Critical patent/GB2047675B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • 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
    • C04B28/141—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 containing dihydrated gypsum before the final hardening step, e.g. forming a dihydrated gypsum product followed by a de- and rehydration step

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

Plaster products can be prepared from calcium sulphate dihydrate by adding to a water slurry of calcium sulphate dihydrate a potassium salt, especially potassium hydrogen-carbonate or potassium tetraborate but, in the first place, potassium sulphate, including a carrier, after which the water slurry is moulded and further worked in known manner to the desired plaster product, especially plaster board or moulds for the production of metal articles or ceramic articles.
GB8005042A 1978-07-13 1979-07-12 Method of preparing gypsum articles Expired GB2047675B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7807807A SE426053C (en) 1978-07-13 1978-07-13 SET TO MAKE PLASTIC PRODUCTS

Publications (2)

Publication Number Publication Date
GB2047675A true GB2047675A (en) 1980-12-03
GB2047675B GB2047675B (en) 1984-02-29

Family

ID=20335446

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8005042A Expired GB2047675B (en) 1978-07-13 1979-07-12 Method of preparing gypsum articles

Country Status (8)

Country Link
JP (1) JPS55500522A (en)
AU (1) AU528999B2 (en)
CA (1) CA1135291A (en)
DK (1) DK105780A (en)
FR (1) FR2430921A1 (en)
GB (1) GB2047675B (en)
SE (1) SE426053C (en)
WO (1) WO1980000248A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981002010A1 (en) * 1980-01-09 1981-07-23 Tenax Maskin Ab Plaster products and a process for the production thereof
AU2020202788A1 (en) * 2020-04-27 2021-11-11 Pact Renewables Pty Ltd Mineral-based composites
GB2611904A (en) * 2020-06-25 2023-04-19 Pact Renewables Pty Ltd Degradable materials containing waste paper products

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE432542C (en) * 1924-04-15 1926-08-09 Morduch E Lewin Process for the production of a cement-like mass
US3359146A (en) * 1964-03-27 1967-12-19 United States Gypsum Co Method of producing gypsum articles having improved strength to density ratio
US3841886A (en) * 1972-04-13 1974-10-15 Motus Chem Inc Refractory cement incorporating fluxing component
GB1371015A (en) * 1972-05-15 1974-10-23 Raytheon Co Fabrication of foundry casting moulds and cores
JPS5313629A (en) * 1976-07-23 1978-02-07 Mitsubishi Mining & Cement Co Gypsum series setting material production method
JPS53130723A (en) * 1977-03-23 1978-11-15 Mitsubishi Mining & Cement Co Method of producing hardened body of gypsum reinforced with fiber
JPS53119918A (en) * 1977-03-28 1978-10-19 Chichibu Cement Kk Light weight hardened body and its manufacture

Also Published As

Publication number Publication date
JPS55500522A (en) 1980-08-14
SE7807807L (en) 1980-01-14
CA1135291A (en) 1982-11-09
FR2430921A1 (en) 1980-02-08
FR2430921B1 (en) 1984-12-21
SE426053C (en) 1985-09-09
AU528999B2 (en) 1983-05-19
WO1980000248A1 (en) 1980-02-21
SE426053B (en) 1982-12-06
AU4887979A (en) 1980-01-17
GB2047675B (en) 1984-02-29
DK105780A (en) 1980-03-12

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee