IT999642B - Procedimento per la preparazione dei solfati di calcio disidratati a partire da gessi fosfatici - Google Patents

Procedimento per la preparazione dei solfati di calcio disidratati a partire da gessi fosfatici

Info

Publication number
IT999642B
IT999642B IT70002/73A IT7000273A IT999642B IT 999642 B IT999642 B IT 999642B IT 70002/73 A IT70002/73 A IT 70002/73A IT 7000273 A IT7000273 A IT 7000273A IT 999642 B IT999642 B IT 999642B
Authority
IT
Italy
Prior art keywords
gypsums
phosphatic
procedure
preparation
calcium sulfates
Prior art date
Application number
IT70002/73A
Other languages
English (en)
Inventor
B Neveu
A Pinault
C Bouilly
T Hofmann
J Susini
R Sinn
M Prigent
Original Assignee
Charbonnages Ste Chimique
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 Charbonnages Ste Chimique filed Critical Charbonnages Ste Chimique
Application granted granted Critical
Publication of IT999642B publication Critical patent/IT999642B/it

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
    • C04B11/02—Methods and apparatus for dehydrating gypsum

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Drying Of Solid Materials (AREA)
IT70002/73A 1972-10-12 1973-10-11 Procedimento per la preparazione dei solfati di calcio disidratati a partire da gessi fosfatici IT999642B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7236170A FR2202851B1 (it) 1972-10-12 1972-10-12

Publications (1)

Publication Number Publication Date
IT999642B true IT999642B (it) 1976-03-10

Family

ID=9105549

Family Applications (1)

Application Number Title Priority Date Filing Date
IT70002/73A IT999642B (it) 1972-10-12 1973-10-11 Procedimento per la preparazione dei solfati di calcio disidratati a partire da gessi fosfatici

Country Status (13)

Country Link
JP (1) JPS4975496A (it)
BE (1) BE805808A (it)
BR (1) BR7307953D0 (it)
DE (1) DE2350772A1 (it)
ES (1) ES419558A1 (it)
FR (1) FR2202851B1 (it)
GB (1) GB1429259A (it)
IE (1) IE38376B1 (it)
IL (1) IL43439A (it)
IT (1) IT999642B (it)
LU (1) LU68591A1 (it)
NL (1) NL7314064A (it)
OA (1) OA04674A (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140702A (en) * 1980-11-10 1984-12-05 Bpb Industries Plc Fluidised bed calcination
AU3354697A (en) * 1997-07-15 1999-02-10 Marceli Cyrkiewicz Method and apparatus for the processing of phosphate gypsum waste
FR3059574A1 (fr) * 2016-12-07 2018-06-08 Ocp Sa Systeme d'evacuation de phosphogypse
CN112811837B (zh) * 2020-12-31 2023-06-16 湖北聚海环境科技有限公司 一种再生集料高温余热脱水烘干磷石膏的系统设备及方法
CN113772979A (zh) * 2021-09-15 2021-12-10 贵州中建建筑科研设计院有限公司 一种基准磷建筑石膏及其制作方法与应用

Also Published As

Publication number Publication date
IL43439A (en) 1976-08-31
FR2202851B1 (it) 1978-12-29
JPS4975496A (it) 1974-07-22
DE2350772A1 (de) 1974-04-18
IL43439A0 (en) 1974-03-14
LU68591A1 (it) 1973-12-14
OA04674A (fr) 1980-07-31
GB1429259A (en) 1976-03-24
IE38376B1 (en) 1978-03-01
FR2202851A1 (it) 1974-05-10
ES419558A1 (es) 1976-07-16
IE38376L (en) 1974-04-12
NL7314064A (it) 1974-04-16
BR7307953D0 (pt) 1974-07-25
BE805808A (fr) 1974-02-01

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