SE7514272L - KALCIUM SULPHATE-ALFA HYMHYDRATE MANUFACTURE KEY AND SYSTEM - Google Patents

KALCIUM SULPHATE-ALFA HYMHYDRATE MANUFACTURE KEY AND SYSTEM

Info

Publication number
SE7514272L
SE7514272L SE7514272A SE7514272A SE7514272L SE 7514272 L SE7514272 L SE 7514272L SE 7514272 A SE7514272 A SE 7514272A SE 7514272 A SE7514272 A SE 7514272A SE 7514272 L SE7514272 L SE 7514272L
Authority
SE
Sweden
Prior art keywords
kalcium
hymhydrate
alfa
sulphate
manufacture key
Prior art date
Application number
SE7514272A
Other languages
Swedish (sv)
Other versions
SE405844B (en
Inventor
G Reichert
K-H Stendenbach
L Strie
J Tiedemann
Original Assignee
Hoechst Ag
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
Priority claimed from DE19742459739 external-priority patent/DE2459739C3/en
Application filed by Hoechst Ag filed Critical Hoechst Ag
Publication of SE7514272L publication Critical patent/SE7514272L/en
Publication of SE405844B publication Critical patent/SE405844B/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
    • 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)
  • 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)
  • Removal Of Specific Substances (AREA)
SE7514272A 1974-12-18 1975-12-17 KALCIUM SULPHATE-ALFA HYMHYDRATE MANUFACTURE KEY AND SYSTEM SE405844B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742459739 DE2459739C3 (en) 1974-12-18 Process and plant for the production of calcium sulfate alpha hemihydrate

Publications (2)

Publication Number Publication Date
SE7514272L true SE7514272L (en) 1976-06-21
SE405844B SE405844B (en) 1979-01-08

Family

ID=5933662

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7514272A SE405844B (en) 1974-12-18 1975-12-17 KALCIUM SULPHATE-ALFA HYMHYDRATE MANUFACTURE KEY AND SYSTEM

Country Status (14)

Country Link
AT (1) AT340445B (en)
BE (1) BE836714A (en)
BR (1) BR7508349A (en)
CH (1) CH618146A5 (en)
DK (1) DK142026C (en)
FR (1) FR2294985A1 (en)
GB (1) GB1474839A (en)
IE (1) IE42222B1 (en)
LU (1) LU74027A1 (en)
NL (1) NL172142C (en)
PL (1) PL109429B1 (en)
RO (1) RO67270A (en)
SE (1) SE405844B (en)
SU (1) SU805943A3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0085382A1 (en) * 1982-02-01 1983-08-10 Quante, Heinrich Installation for the production of alpha-calcium sulfate
CN111517355A (en) * 2020-05-05 2020-08-11 桂林理工大学 Method for preparing alpha hemihydrate gypsum from phosphogypsum under autoclaved condition

Also Published As

Publication number Publication date
IE42222L (en) 1976-06-18
RO67270A (en) 1980-03-15
FR2294985B1 (en) 1981-08-07
GB1474839A (en) 1977-05-25
DE2459739B2 (en) 1976-11-18
DE2459739A1 (en) 1976-07-01
LU74027A1 (en) 1976-12-31
PL109429B1 (en) 1980-05-31
BR7508349A (en) 1976-09-08
CH618146A5 (en) 1980-07-15
NL172142C (en) 1983-07-18
NL172142B (en) 1983-02-16
NL7514656A (en) 1976-06-22
DK574175A (en) 1976-06-19
SE405844B (en) 1979-01-08
AT340445B (en) 1977-12-12
DK142026B (en) 1980-08-11
DK142026C (en) 1981-01-05
BE836714A (en) 1976-06-17
FR2294985A1 (en) 1976-07-16
IE42222B1 (en) 1980-07-02
SU805943A3 (en) 1981-02-15
ATA958575A (en) 1977-04-15

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