MX159992A - Metodo mejorado para producir cristales de hemihidrato de sulfato de calcio a partir de terrones de roca natural de yeso - Google Patents

Metodo mejorado para producir cristales de hemihidrato de sulfato de calcio a partir de terrones de roca natural de yeso

Info

Publication number
MX159992A
MX159992A MX189740A MX18974081A MX159992A MX 159992 A MX159992 A MX 159992A MX 189740 A MX189740 A MX 189740A MX 18974081 A MX18974081 A MX 18974081A MX 159992 A MX159992 A MX 159992A
Authority
MX
Mexico
Prior art keywords
terres
improved method
calcium sulphate
producing calcium
sulphate hemihydrate
Prior art date
Application number
MX189740A
Other languages
English (en)
Inventor
Eugene O'neill
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
Application filed by United States Gypsum Co filed Critical United States Gypsum Co
Publication of MX159992A publication Critical patent/MX159992A/es

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
    • C04B11/00—Calcium sulfate cements
    • C04B11/02—Methods and apparatus for dehydrating gypsum
    • C04B11/028—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained
    • C04B11/032—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained for the wet process, e.g. dehydrating in solution or under saturated vapour conditions, i.e. to obtain alpha-hemihydrate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
MX189740A 1980-12-03 1981-10-21 Metodo mejorado para producir cristales de hemihidrato de sulfato de calcio a partir de terrones de roca natural de yeso MX159992A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/212,464 US4309391A (en) 1980-12-03 1980-12-03 Lump process alpha gypsum

Publications (1)

Publication Number Publication Date
MX159992A true MX159992A (es) 1989-10-23

Family

ID=22791137

Family Applications (1)

Application Number Title Priority Date Filing Date
MX189740A MX159992A (es) 1980-12-03 1981-10-21 Metodo mejorado para producir cristales de hemihidrato de sulfato de calcio a partir de terrones de roca natural de yeso

Country Status (3)

Country Link
US (1) US4309391A (es)
CA (1) CA1139919A (es)
MX (1) MX159992A (es)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2205089B (en) * 1987-05-22 1991-03-13 Rhein Westfael Elect Werk Ag Process for production of calcium sulphate alpha-hemihydrate
US6964704B2 (en) * 2003-03-20 2005-11-15 G.B. Technologies, Llc Calcium sulphate-based composition and methods of making same
JP4075709B2 (ja) * 2003-07-02 2008-04-16 住友電装株式会社 コネクタ
US7731794B2 (en) 2005-06-09 2010-06-08 United States Gypsum Company High starch light weight gypsum wallboard
US9840066B2 (en) 2005-06-09 2017-12-12 United States Gypsum Company Light weight gypsum board
US11338548B2 (en) 2005-06-09 2022-05-24 United States Gypsum Company Light weight gypsum board
US9802866B2 (en) * 2005-06-09 2017-10-31 United States Gypsum Company Light weight gypsum board
US11306028B2 (en) 2005-06-09 2022-04-19 United States Gypsum Company Light weight gypsum board
USRE44070E1 (en) 2005-06-09 2013-03-12 United States Gypsum Company Composite light weight gypsum wallboard
US20110195241A1 (en) * 2005-06-09 2011-08-11 United States Gypsum Company Low Weight and Density Fire-Resistant Gypsum Panel
US7771851B2 (en) * 2005-08-26 2010-08-10 United States Gypsum Company Gypsum-containing products containing alpha hemihydrate
US20090208392A1 (en) * 2008-02-14 2009-08-20 Georgia-Pacific Gypsum, Llc Process for producing alpha-hemihydrate gypsum
CA2901775C (en) * 2013-02-18 2019-10-01 Mustafa Ozsut Lower heat processed calcium sulphates for early strength cements and general use
EP3208248A4 (en) * 2014-10-13 2018-07-11 Stavrulov, Igor Anatolevich Method for producing a gypsum binder
CN110482887A (zh) * 2019-09-05 2019-11-22 襄汾县宏泽石膏粉有限责任公司 一种利用化学石膏生产α高强石膏粉的工艺

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA567797A (en) * 1958-12-23 C. Dailey Manvel Process for producing calcined gypsum
US1901051A (en) * 1929-08-08 1933-03-14 United States Gypsum Co High strength calcined gypsum and process of manufacturing same
US1931240A (en) * 1930-02-07 1933-10-17 United States Gypsum Co Process of calcining gypsum
US2418590A (en) * 1944-05-04 1947-04-08 United States Gypsum Co Process of making anhydrous calcium sulphate
US2907668A (en) * 1956-03-30 1959-10-06 United States Gypsum Co Calcination of gypsum
US2907667A (en) * 1956-03-30 1959-10-06 United States Gypsum Co Process of calcining gypsum
US3081152A (en) * 1959-10-05 1963-03-12 United States Gypsum Co Process for calcination of gypsum
GB1079502A (en) * 1963-05-28 1967-08-16 Cafferata & Co Ltd Improvements in and relating to the production of calcium sulphate hemihydrate
AU6714265A (en) * 1965-11-26 1968-05-16 Continuous production of alpha plaster
GB1253363A (en) * 1968-05-28 1971-11-10 Bpb Industries Ltd Calcium sulphate plaster
DE2844266C2 (de) * 1978-10-11 1984-10-31 Giulini Chemie Gmbh, 6700 Ludwigshafen Hartgips, Verfahren zu seiner Herstellung und seine Verwendung

Also Published As

Publication number Publication date
CA1139919A (en) 1983-01-25
US4309391A (en) 1982-01-05

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