IL43439A - Preparation of calcined gypsum - Google Patents

Preparation of calcined gypsum

Info

Publication number
IL43439A
IL43439A IL43439A IL4343973A IL43439A IL 43439 A IL43439 A IL 43439A IL 43439 A IL43439 A IL 43439A IL 4343973 A IL4343973 A IL 4343973A IL 43439 A IL43439 A IL 43439A
Authority
IL
Israel
Prior art keywords
air
phosphogypsum
current
treatment
seconds
Prior art date
Application number
IL43439A
Other languages
English (en)
Other versions
IL43439A0 (en
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 IL43439A0 publication Critical patent/IL43439A0/xx
Publication of IL43439A publication Critical patent/IL43439A/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)
  • 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)
IL43439A 1972-10-12 1973-10-17 Preparation of calcined gypsum IL43439A (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
IL43439A0 IL43439A0 (en) 1974-03-14
IL43439A true IL43439A (en) 1976-08-31

Family

ID=9105549

Family Applications (1)

Application Number Title Priority Date Filing Date
IL43439A IL43439A (en) 1972-10-12 1973-10-17 Preparation of calcined gypsum

Country Status (13)

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

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
WO1999003795A1 (en) * 1997-07-15 1999-01-28 Karageorgis, Ioannis 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
NL7314064A (ja) 1974-04-16
ES419558A1 (es) 1976-07-16
BE805808A (fr) 1974-02-01
LU68591A1 (ja) 1973-12-14
GB1429259A (en) 1976-03-24
BR7307953D0 (pt) 1974-07-25
IE38376B1 (en) 1978-03-01
IL43439A0 (en) 1974-03-14
DE2350772A1 (de) 1974-04-18
OA04674A (fr) 1980-07-31
IT999642B (it) 1976-03-10
FR2202851A1 (ja) 1974-05-10
IE38376L (en) 1974-04-12
FR2202851B1 (ja) 1978-12-29
JPS4975496A (ja) 1974-07-22

Similar Documents

Publication Publication Date Title
DE3070858D1 (en) Process for producing shaped spherical bodies based on al2o3 and their use
GB1549029A (en) Process for the conversion of gypsum into calcium sulphate hemihydrate
IL43439A (en) Preparation of calcined gypsum
GB1416420A (en) Process for drying mineral-containing aqueous protein solutions
GR3003667T3 (ja)
GB1500579A (en) Method of preparing plaster
DE59101469D1 (de) Verfahren zum Herstellen von granuliertem Dicalciumphosphatdihydrat.
SE8302943D0 (sv) Forfarande vid framstellning av granulert natriumtripolyfosfat med lag volymvikt
GB1268396A (en) Anhydrous calcium sulphate and calcium sulphate semihydrate
GB610439A (en) Improvements in and relating to the dehydration of particulate calcium sulphate
FR2328673A1 (fr) Procede de sechage des matieres premieres de la fabrication du clinker de ciment portland
JPS51133853A (en) In-shooter of raw material
CA2215854A1 (en) Process for preparing sparingly soluble calcium sulphate anhydrite-ii
GB1382409A (en) Process for the manufacture of crystalline anhydrous ampicillin
IT1110652B (it) Impianto combinato per il trattamento in forni lunghi per via semisecca di melme umide di materie prime da cemento da trasformare in clinker
JPS5748925A (en) Preparation of trimethylbenzene
JPS565317A (en) Preparation of calcium silicate or complex of calcium silicate with gypsum
SU800152A2 (ru) Способ получени гипсового в жущего
SU630235A1 (ru) Сырьева смесь дл изготовлени легкого жаростойкого бетона
SU419491A1 (ja)
GB634467A (en) Improvements relating to the formation of powders by drying
SU139233A1 (ru) Способ сушки сухой гипсовой штукатурки
Kunecki Phosphogypsum as a raw material for producing sulfuric acid and cement clinker
SE7708562L (sv) Sett och anordning for behandling av gips
JPS52114496A (en) Production of gypsum for portland cement from gypsum obtained by flue gas desulfurization