EG24429A - Method of preparing stabilised anhydrite III from plaster and hydraulic binder thus obtained - Google Patents

Method of preparing stabilised anhydrite III from plaster and hydraulic binder thus obtained

Info

Publication number
EG24429A
EG24429A EGNA2005000864A EG24429A EG 24429 A EG24429 A EG 24429A EG NA2005000864 A EGNA2005000864 A EG NA2005000864A EG 24429 A EG24429 A EG 24429A
Authority
EG
Egypt
Prior art keywords
less
anhydrite iii
stabilised
temperature
plaster
Prior art date
Application number
Inventor
Jean Couturier
Original Assignee
Jean Couturier
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 Jean Couturier filed Critical Jean Couturier
Application granted granted Critical
Publication of EG24429A publication Critical patent/EG24429A/en

Links

Classifications

    • 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
    • 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
    • C04B11/05—Calcium sulfate cements obtaining anhydrite, e.g. Keene's cement

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Catalysts (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

The invention relates to a method of preparing stabilised calcium sulphate anhydrite III. The inventive method comprises the following successive steps consisting in: a) heating a powdered starting material to a temperature of between 220 DEG C and 320 < DEG >C, so as to form soluble anhydrite III; and b) subjecting the material thus transformed to a thermal quenching process, so as to lower the temperature thereof by at least 150 < DEG >C in order to obtain a temperature that is at least less than 100 < DEG >C and, preferably, less than 80 < DEG >C, in less than 2 minutes and, preferably, in less than 20 seconds, such as to obtain the aforementioned stabilised anhydrite III. The invention is characterised in that the powdered starting material is ground to produce a particle size of less than 200 ñm and, preferably, of less than 150 ñm and mainly comprises calcium sulphate hemihydrate.
EGNA2005000864 2003-06-26 2005-12-25 Method of preparing stabilised anhydrite III from plaster and hydraulic binder thus obtained EG24429A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0307716A FR2856679B1 (en) 2003-06-26 2003-06-26 PROCESS FOR PREPARING ANHYDRITE III STABILIZED FROM PLASTER
PCT/FR2004/001632 WO2005000766A2 (en) 2003-06-26 2004-06-25 Method of preparing stabilised anhydrite iii from plaster and, hydraulic binder thus obtained

Publications (1)

Publication Number Publication Date
EG24429A true EG24429A (en) 2009-06-15

Family

ID=33515425

Family Applications (1)

Application Number Title Priority Date Filing Date
EGNA2005000864 EG24429A (en) 2003-06-26 2005-12-25 Method of preparing stabilised anhydrite III from plaster and hydraulic binder thus obtained

Country Status (10)

Country Link
EP (1) EP1644298B1 (en)
AT (1) ATE353858T1 (en)
CY (1) CY1107686T1 (en)
DE (1) DE602004004788T2 (en)
EG (1) EG24429A (en)
ES (1) ES2281830T3 (en)
FR (1) FR2856679B1 (en)
OA (1) OA13182A (en)
PT (1) PT1644298E (en)
WO (1) WO2005000766A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1702897A1 (en) * 2005-03-14 2006-09-20 Jean Couturier Process for treatment of gypsum or plaster
US7877387B2 (en) 2005-09-30 2011-01-25 Strands, Inc. Systems and methods for promotional media item selection and promotional program unit generation
ES2289931B2 (en) * 2006-01-13 2008-08-16 Christian Palacios Gazules IMPROVEMENTS INTRODUCED IN MAIN PATENT P200600084 CONCERNING A PROCEDURE FOR OBTAINING STABILIZED ANHYDRITE III.
FR2933688B1 (en) * 2008-07-11 2011-05-13 K And Co PROCESS FOR THE INDUSTRIAL MANUFACTURE OF ANHYDROUS CALCIUM SULFATE COMPOSITIONS IN THE FORM BETA ANHYDRITE III 'COMPOSITIONS AND CORRESPONDING BINDERS
FR2947258B1 (en) * 2009-06-26 2011-07-22 K And Co METHOD FOR THE DRY PROCESS OF ANHYDROUS CALCIUM SULPHATE IN THE FORM BETA ANHYDRITE III FROM CALCIUM SULPHATE HEMIHYDRATE
FR2949483B1 (en) 2009-09-01 2013-11-08 Charles Cebador BUILDING WALL AND METHOD FOR MAKING SUCH WALL
WO2013112060A1 (en) 2012-01-27 2013-08-01 Columbeanu Ion Hydraulic binder based on calcium sulphate, process for producing the same and specific uses thereof
FR2989679A1 (en) * 2012-04-23 2013-10-25 Radhouane Djeridi Preparing industrial anhydriteIII-based hydraulic binder from calcium material comprises synthesizing extracted or raw material to establish underlying products with calcium sulfate, and elaborating anhydrite to prepare hydraulic binder

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2276276A1 (en) * 1974-06-28 1976-01-23 Rhone Poulenc Ind PLASTER PREPARATION PROCESS
US4080422A (en) * 1975-06-30 1978-03-21 United States Gypsum Company Method for producing insoluble calcium sulfate anhydrite
GB2053874B (en) * 1977-12-29 1982-07-28 Idemitsu Kosan Co Production of calcium sulphate
US5169444A (en) * 1986-02-20 1992-12-08 Gebruder Knauf Westdeutsche Gipswerke Kg Process for preparing calcium sulfate anhydrite
DD296058A5 (en) * 1990-02-19 1991-11-21 Veb Zementwerke Ruedersdorf,De PROCESS FOR DEHYDRATING GRAVES
DE19606075C2 (en) * 1996-02-19 2000-02-17 Sulzer Chemtech Gmbh Processes and devices for the thermal treatment of gypsum
FR2767815A1 (en) * 1997-08-27 1999-02-26 Jean Couturier Stable alpha anhydrite-rich hydraulic binder
FR2804423B1 (en) * 2000-01-28 2002-11-22 Energetic Ind Internat ANHYDRITE III OR ALPHA STABILIZED, PROCESS AND INDUSTRIAL PRODUCTION FACILITY
FR2836913B1 (en) * 2002-03-08 2006-11-24 Lafarge Platres DEVICE FOR DRYING AND / OR COOKING GYPSUM

Also Published As

Publication number Publication date
FR2856679A1 (en) 2004-12-31
ATE353858T1 (en) 2007-03-15
EP1644298B1 (en) 2007-02-14
OA13182A (en) 2006-12-13
DE602004004788T2 (en) 2008-01-24
DE602004004788D1 (en) 2007-03-29
PT1644298E (en) 2007-05-31
EP1644298A2 (en) 2006-04-12
FR2856679B1 (en) 2006-12-22
ES2281830T3 (en) 2007-10-01
WO2005000766A3 (en) 2005-03-24
WO2005000766A2 (en) 2005-01-06
CY1107686T1 (en) 2013-04-18

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