BR7307953D0 - PROCESS FOR THE PREPARATION OF DEHYDRATED CALCIUM SULPHATES FROM PHOSPHOGYPS - Google Patents

PROCESS FOR THE PREPARATION OF DEHYDRATED CALCIUM SULPHATES FROM PHOSPHOGYPS

Info

Publication number
BR7307953D0
BR7307953D0 BR7953/73A BR795373A BR7307953D0 BR 7307953 D0 BR7307953 D0 BR 7307953D0 BR 7953/73 A BR7953/73 A BR 7953/73A BR 795373 A BR795373 A BR 795373A BR 7307953 D0 BR7307953 D0 BR 7307953D0
Authority
BR
Brazil
Prior art keywords
phosphogyps
preparation
calcium sulphates
dehydrated calcium
dehydrated
Prior art date
Application number
BR7953/73A
Other languages
Portuguese (pt)
Inventor
R Sinn
C Bonilly
M Prigent
A Pinault
J Susini
B Nerieu
T Hofman
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
Publication of BR7307953D0 publication Critical patent/BR7307953D0/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
    • C04B11/02—Methods and apparatus for dehydrating gypsum

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Drying Of Solid Materials (AREA)
BR7953/73A 1972-10-12 1973-10-11 PROCESS FOR THE PREPARATION OF DEHYDRATED CALCIUM SULPHATES FROM PHOSPHOGYPS BR7307953D0 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BR7307953D0 true BR7307953D0 (en) 1974-07-25

Family

ID=9105549

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7953/73A BR7307953D0 (en) 1972-10-12 1973-10-11 PROCESS FOR THE PREPARATION OF DEHYDRATED CALCIUM SULPHATES FROM PHOSPHOGYPS

Country Status (13)

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

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 (en) * 2016-12-07 2018-06-08 Ocp Sa PHOSPHOGYPSE EVACUATION SYSTEM
CN112811837B (en) * 2020-12-31 2023-06-16 湖北聚海环境科技有限公司 System equipment and method for dehydrating and drying phosphogypsum by using high-temperature waste heat of regenerated aggregate
CN113772979A (en) * 2021-09-15 2021-12-10 贵州中建建筑科研设计院有限公司 Reference phosphorus building gypsum and manufacturing method and application thereof

Also Published As

Publication number Publication date
ES419558A1 (en) 1976-07-16
OA04674A (en) 1980-07-31
IL43439A (en) 1976-08-31
IE38376B1 (en) 1978-03-01
FR2202851A1 (en) 1974-05-10
DE2350772A1 (en) 1974-04-18
GB1429259A (en) 1976-03-24
BE805808A (en) 1974-02-01
FR2202851B1 (en) 1978-12-29
LU68591A1 (en) 1973-12-14
JPS4975496A (en) 1974-07-22
NL7314064A (en) 1974-04-16
IE38376L (en) 1974-04-12
IL43439A0 (en) 1974-03-14
IT999642B (en) 1976-03-10

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