ZA794685B - Improved process for preparing calcined gypsum & gypsum board - Google Patents

Improved process for preparing calcined gypsum & gypsum board

Info

Publication number
ZA794685B
ZA794685B ZA00794685A ZA794685A ZA794685B ZA 794685 B ZA794685 B ZA 794685B ZA 00794685 A ZA00794685 A ZA 00794685A ZA 794685 A ZA794685 A ZA 794685A ZA 794685 B ZA794685 B ZA 794685B
Authority
ZA
South Africa
Prior art keywords
gypsum
improved process
preparing calcined
gypsum board
board
Prior art date
Application number
ZA00794685A
Other languages
English (en)
Inventor
E Oneill
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 ZA794685B publication Critical patent/ZA794685B/xx

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)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
ZA00794685A 1978-09-05 1979-09-05 Improved process for preparing calcined gypsum & gypsum board ZA794685B (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ZA794685B true ZA794685B (en) 1980-09-24

Family

ID=25473481

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00794685A ZA794685B (en) 1978-09-05 1979-09-05 Improved process for preparing calcined gypsum & gypsum board

Country Status (13)

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

Families Citing this family (8)

* 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
EP1547984B1 (fr) 2003-12-19 2006-08-16 Lafarge Platres Procédé et dispositif pour la consolidation du plâtre
RU2009102816A (ru) 2006-06-29 2010-08-10 Йосино Джипсум Ко., Лтд. (Jp) Способы изготовления обожженного гипса и гипсовой плиты
WO2015185143A1 (fr) * 2014-06-05 2015-12-10 Knauf Gips Kg Procédé de production d'une plaque de plâtre et plaque de plâtre ainsi obtenue
AU2020258178B2 (en) * 2019-04-15 2022-10-20 Yoshino Gypsum Co., Ltd. Pretreatment mixing stirrer, gypsum slurry manufacturing device, construction surface material manufacturing device, pretreatment calcined gypsum manufacturing method, gypsum slurry manufacturing method, construction surface material manufacturing method
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

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
NO152439C (no) 1985-10-02
FI65224C (fi) 1984-04-10
ES8102998A1 (es) 1981-02-16
FI65224B (fi) 1983-12-30
NO792852L (no) 1980-03-06
IL58206A (en) 1983-10-31
ES490663A0 (es) 1981-02-16
ES483963A1 (es) 1980-09-01
CA1103890A (fr) 1981-06-30
EP0008947B1 (fr) 1982-04-07
DE2962452D1 (en) 1982-05-19
MX152099A (es) 1985-05-29
FI792761A (fi) 1980-03-06
AU5058579A (en) 1980-03-13
AU530867B2 (en) 1983-08-04
DK369279A (da) 1980-03-06
NO152439B (no) 1985-06-24
JPH0351665B2 (fr) 1991-08-07
EP0008947A1 (fr) 1980-03-19
BR7905689A (pt) 1980-05-13
JPS5537499A (en) 1980-03-15

Similar Documents

Publication Publication Date Title
YU170479A (en) Process for preparing 2-chloro-6-nitroanilines
ZA781473B (en) Improved process for preparing calcined gypsum
PH17210A (en) Process for making plaster board
YU130179A (en) Process for producing sorel cement
GB2018816B (en) Process for preparing hexamethyltetrahydronaphthalenes
PT70313A (en) Process for preparing substituted 1-thia-3-aza-4-ones
GB2034701B (en) Process for preparing 2-chlorosulphinylazetidinones
ZA794685B (en) Improved process for preparing calcined gypsum & gypsum board
GB2019835B (en) Process for preparing n-carbamoyl-d-thienylglycines
DE2960047D1 (en) Process for preparing 2-oximinophenylacetonitrile
DE2961058D1 (en) Process for preparing alpha-chloro-n-monoalkyl-acetoacetamides
YU41093B (en) Process for preparing 6-deoxy-5hydroxy-tetracycline
JPS5537434A (en) Process for firing gypsum
JPS5537432A (en) Process for firing gypsum
YU40533B (en) Process for preparing 2-bromoergosinine
IL54622A0 (en) Improved process for preparing calcined gypsum
DE2964629D1 (en) Process for preparing 3-amino-5-t-butylisoxazole
PT69691A (en) Process for preparing n-tritylimidazole compounds
DE2963897D1 (en) Process for preparing sodium-m-nitrobenzenesulfonate
PH15975A (en) Process for preparing cis-bicyclooctylamines
PT69287A (en) Process for preparing benzocycloheptapyrans
GB2009726B (en) Process for preparing gypsum
DE2963998D1 (en) Process for preparing n-tritylimidazole compounds
GB2025414B (en) Process for preparing cis-bicyclooctylamines
JPS5537433A (en) Process for firing gypsum