AU530867B2 - Preparing calcined gypsum and gypsum board - Google Patents

Preparing calcined gypsum and gypsum board

Info

Publication number
AU530867B2
AU530867B2 AU50585/79A AU5058579A AU530867B2 AU 530867 B2 AU530867 B2 AU 530867B2 AU 50585/79 A AU50585/79 A AU 50585/79A AU 5058579 A AU5058579 A AU 5058579A AU 530867 B2 AU530867 B2 AU 530867B2
Authority
AU
Australia
Prior art keywords
gypsum
calcined gypsum
surface area
water
healed
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
AU50585/79A
Other languages
English (en)
Other versions
AU5058579A (en
Inventor
Eugene Edward O:neill
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.)
Knauf Gypsum Pty Ltd
Original Assignee
United States Gypsum Co
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
Priority claimed from US05/939,624 external-priority patent/US4201595A/en
Application filed by United States Gypsum Co filed Critical United States Gypsum Co
Publication of AU5058579A publication Critical patent/AU5058579A/en
Application granted granted Critical
Publication of AU530867B2 publication Critical patent/AU530867B2/en
Assigned to BORAL AUSTRALIAN GYPSUM LIMITED reassignment BORAL AUSTRALIAN GYPSUM LIMITED Request to Amend Deed and Register Assignors: AUSTRALIAN GYPSUM LIMITED
Anticipated expiration legal-status Critical
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/102—Glass compositions containing silica with 40% to 90% silica, by weight containing lead
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
AU50585/79A 1978-09-05 1979-09-05 Preparing calcined gypsum and gypsum board Expired AU530867B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US939624 1978-09-05
US05/939,624 US4201595A (en) 1977-03-14 1978-09-05 Process for preparing calcined gypsum and gypsum board

Publications (2)

Publication Number Publication Date
AU5058579A AU5058579A (en) 1980-03-13
AU530867B2 true AU530867B2 (en) 1983-08-04

Family

ID=25473481

Family Applications (1)

Application Number Title Priority Date Filing Date
AU50585/79A Expired AU530867B2 (en) 1978-09-05 1979-09-05 Preparing calcined gypsum and gypsum board

Country Status (13)

Country Link
EP (1) EP0008947B1 (enExample)
JP (1) JPS5537499A (enExample)
AU (1) AU530867B2 (enExample)
BR (1) BR7905689A (enExample)
CA (1) CA1103890A (enExample)
DE (1) DE2962452D1 (enExample)
DK (1) DK369279A (enExample)
ES (2) ES483963A1 (enExample)
FI (1) FI65224C (enExample)
IL (1) IL58206A (enExample)
MX (1) MX152099A (enExample)
NO (1) NO152439C (enExample)
ZA (1) ZA794685B (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2904071B1 (de) * 1979-02-03 1980-07-24 Knauf Westdeutsche Gips Verfahren zur Herstellung eines Anhydrit-Gipsgemisches aus feinteiligem synthetischen Anhydrit
DE2908266C2 (de) * 1979-03-02 1986-01-09 Gebr. Knauf Westdeutsche Gipswerke, 8715 Iphofen Verfahren zur Herstellung eines Calciumsulfat-Halbhydrat-Dihydrat-Gemisches aus feinteiligem synthetischen Calciumsulfat-Halbhydrat
DE3818992A1 (de) * 1988-06-03 1989-12-14 Rigips Gmbh Verfahren zur herstellung eines fuer die produktion von gipskartonplatten geeigneten stuckgipses aus rea-gips
PT1547984E (pt) 2003-12-19 2006-12-29 Lafarge Platres Método e dispositivo para estabilizar reboco
CN104692756B (zh) 2006-06-29 2023-10-20 吉野石膏株式会社 熟石膏及石膏板的制造方法
WO2020213611A1 (ja) 2019-04-15 2020-10-22 吉野石膏株式会社 前処理用混合撹拌機、石膏スラリー製造装置、建築用面材製造装置、前処理焼石膏の製造方法、石膏スラリーの製造方法、建築用面材の製造方法
CN110436804B (zh) * 2019-07-26 2021-08-06 宁波北新建材有限公司 一种球磨过程中改善熟料相组成的装置
WO2026130649A1 (en) * 2024-12-20 2026-06-25 Knauf Gips Kg Process for the preparation of stable coarse grain with compact structure of different calcium sulfate phases
WO2026132061A1 (en) * 2024-12-20 2026-06-25 Knauf Gips Kg Process for increasing the bulk density of recycled gypsum

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3480387A (en) * 1966-11-15 1969-11-25 Central Glass Co Ltd Method for producing gypsum pellets
DE1771625B2 (de) * 1968-06-19 1977-02-17 United States Gypsum Co., Chicago, 111. (V.St.A.) Verfahren zum altern von gebranntem, beta-calciumsulfathemihydrat enthaltendem gips
BE756667A (nl) * 1969-09-26 1971-03-01 Geelen Hendrik E Van Werkwijze voor het bereiden van alpha-calciumsulfaathalfhydraat
DE2115808C3 (de) * 1971-04-01 1978-03-16 Giulin Chemie Gmbh, 6700 Ludwigshafen Verfahren zur Herstellung von feindispers vermahlenem a-Calciumsulfat- Halbhydrat
US4117070A (en) * 1977-03-14 1978-09-26 United States Gypsum Company Process for preparing calcined gypsum

Also Published As

Publication number Publication date
FI792761A7 (fi) 1980-03-06
BR7905689A (pt) 1980-05-13
JPS5537499A (en) 1980-03-15
ES490663A0 (es) 1981-02-16
DK369279A (da) 1980-03-06
ES483963A1 (es) 1980-09-01
EP0008947B1 (en) 1982-04-07
FI65224B (fi) 1983-12-30
EP0008947A1 (en) 1980-03-19
NO152439C (no) 1985-10-02
MX152099A (es) 1985-05-29
ES8102998A1 (es) 1981-02-16
NO792852L (no) 1980-03-06
IL58206A (en) 1983-10-31
ZA794685B (en) 1980-09-24
NO152439B (no) 1985-06-24
AU5058579A (en) 1980-03-13
FI65224C (fi) 1984-04-10
CA1103890A (en) 1981-06-30
DE2962452D1 (en) 1982-05-19
JPH0351665B2 (enExample) 1991-08-07

Similar Documents

Publication Publication Date Title
AU531527B2 (en) Cementitious building board
AU533452B2 (en) Building board
AU521556B2 (en) Drilling-mud mixer
AU510965B2 (en) Preparing calcined gypsum
AU530008B2 (en) Plaster board
AU532141B2 (en) Autopolymerisable adhesive cement
AU4665379A (en) Polycrystalline translucent alumina
GB2026465B (en) Gypsum set accelerator
AU5187379A (en) Mixer
AU518161B2 (en) Treated gypsum wallboard paper
AU5058579A (en) Preparing calcined gypsum and gypsum board
JPS54135360A (en) Multiilayer ceramic board
AU528999B2 (en) Preparing gypsum articles
GB2033369B (en) Alumina cement
GB2052598B (en) Building dressing board
AU532643B2 (en) Tiles
AU5338579A (en) Tiles
JPS54150432A (en) Alumina cement
AU531886B2 (en) Building board
JPS54132622A (en) Improved gypsum board
JPS54107130A (en) Board for construction and its preparation
AU517612B2 (en) Calcining
JPS54143430A (en) Reusable decorative gypsum board
JPS5575947A (en) Alumina cement
JPS54153826A (en) Wooden clay and preparing same

Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired