FR1411586A - Manufacturing process of alpha calcium sulfate hemihydrate from synthetic calcium sulfate dihydrate - Google Patents

Manufacturing process of alpha calcium sulfate hemihydrate from synthetic calcium sulfate dihydrate

Info

Publication number
FR1411586A
FR1411586A FR20719A FR13020719A FR1411586A FR 1411586 A FR1411586 A FR 1411586A FR 20719 A FR20719 A FR 20719A FR 13020719 A FR13020719 A FR 13020719A FR 1411586 A FR1411586 A FR 1411586A
Authority
FR
France
Prior art keywords
calcium sulfate
manufacturing process
alpha
synthetic
hemihydrate
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
FR20719A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BK Giulini Chemie GmbH
Original Assignee
Giulini Gebrueder GmbH
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 Giulini Gebrueder GmbH filed Critical Giulini Gebrueder GmbH
Application granted granted Critical
Publication of FR1411586A publication Critical patent/FR1411586A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C04B11/26—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke
    • 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
    • C04B11/024—Ingredients added before, or during, the calcining process, e.g. calcination modifiers

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)
FR20719A 1963-10-25 1964-10-09 Manufacturing process of alpha calcium sulfate hemihydrate from synthetic calcium sulfate dihydrate Expired FR1411586A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG0039026 1963-10-25

Publications (1)

Publication Number Publication Date
FR1411586A true FR1411586A (en) 1965-09-17

Family

ID=7126047

Family Applications (1)

Application Number Title Priority Date Filing Date
FR20719A Expired FR1411586A (en) 1963-10-25 1964-10-09 Manufacturing process of alpha calcium sulfate hemihydrate from synthetic calcium sulfate dihydrate

Country Status (6)

Country Link
BE (1) BE654067A (en)
DE (1) DE1471177A1 (en)
FR (1) FR1411586A (en)
GB (1) GB1063839A (en)
NL (1) NL6412269A (en)
SE (1) SE338534B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105985036B (en) * 2015-02-13 2017-11-14 郑州三迪建筑科技有限公司 A kind of processing method of ardealite
CN105948547B (en) * 2016-07-12 2017-10-31 山东博瑞新材料科技有限公司 A kind of method that utilization calcium sulphate dihydrate prepares α type half-H 2 O calcium sulphates

Also Published As

Publication number Publication date
DE1471177A1 (en) 1968-12-05
NL6412269A (en) 1965-08-25
SE338534B (en) 1971-09-06
BE654067A (en) 1965-02-01
GB1063839A (en) 1967-03-30

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