FR2613346B1 - Procede pour la fabrication de semi-hydrate de sulfate de calcium, semi-hydrate de sulfate de calcium fabrique par la mise en oeuvre de ce procede et melange de mortier contenant un tel semi-hydrate - Google Patents

Procede pour la fabrication de semi-hydrate de sulfate de calcium, semi-hydrate de sulfate de calcium fabrique par la mise en oeuvre de ce procede et melange de mortier contenant un tel semi-hydrate

Info

Publication number
FR2613346B1
FR2613346B1 FR8803854A FR8803854A FR2613346B1 FR 2613346 B1 FR2613346 B1 FR 2613346B1 FR 8803854 A FR8803854 A FR 8803854A FR 8803854 A FR8803854 A FR 8803854A FR 2613346 B1 FR2613346 B1 FR 2613346B1
Authority
FR
France
Prior art keywords
hydrate
semi
calcium sulfate
implementing
manufacture
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 - Fee Related
Application number
FR8803854A
Other languages
English (en)
French (fr)
Other versions
FR2613346A1 (fr
Inventor
Franz Clementi
Gunter Achenbach
Norbert Alscher
Gunter Fischedick
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.)
RWK RHEIN WESTFAEL KALKWERKE
Original Assignee
RWK RHEIN WESTFAEL KALKWERKE
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 RWK RHEIN WESTFAEL KALKWERKE filed Critical RWK RHEIN WESTFAEL KALKWERKE
Publication of FR2613346A1 publication Critical patent/FR2613346A1/fr
Application granted granted Critical
Publication of FR2613346B1 publication Critical patent/FR2613346B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
    • C04B28/145—Calcium sulfate hemi-hydrate with a specific crystal form
    • C04B28/146—Calcium sulfate hemi-hydrate with a specific crystal form alpha-hemihydrate
    • 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
    • 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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
    • C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
    • C04B28/144—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being a flue gas desulfurization product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
FR8803854A 1987-04-04 1988-03-24 Procede pour la fabrication de semi-hydrate de sulfate de calcium, semi-hydrate de sulfate de calcium fabrique par la mise en oeuvre de ce procede et melange de mortier contenant un tel semi-hydrate Expired - Fee Related FR2613346B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873711367 DE3711367A1 (de) 1987-04-04 1987-04-04 Verfahren zur herstellung von calciumsulfat-halbhydrat

Publications (2)

Publication Number Publication Date
FR2613346A1 FR2613346A1 (fr) 1988-10-07
FR2613346B1 true FR2613346B1 (fr) 1991-06-21

Family

ID=6324859

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8803854A Expired - Fee Related FR2613346B1 (fr) 1987-04-04 1988-03-24 Procede pour la fabrication de semi-hydrate de sulfate de calcium, semi-hydrate de sulfate de calcium fabrique par la mise en oeuvre de ce procede et melange de mortier contenant un tel semi-hydrate

Country Status (5)

Country Link
BE (1) BE1002661A3 (enrdf_load_stackoverflow)
DE (1) DE3711367A1 (enrdf_load_stackoverflow)
FR (1) FR2613346B1 (enrdf_load_stackoverflow)
LU (1) LU87158A1 (enrdf_load_stackoverflow)
NL (1) NL8800727A (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3800794A1 (de) * 1988-01-14 1989-07-27 Rwk Rhein Westfael Kalkwerke Verfahren und anlage zur herstellung von calciumsulfat-halbhydrat in alpha-konfiguration
DE3927927A1 (de) * 1989-08-24 1991-02-28 Rwk Rhein Westfael Kalkwerke Verfahren zur herstellung von faserbewehrten formteilen auf gipsbasis
DE4217978A1 (de) * 1992-05-30 1993-12-02 Heidelberger Zement Ag Verfahren zur Herstellung von ALPHA-Halbhydrat aus Calciumsulfat-Dihydrat in einem Reaktor
DE4409219C2 (de) * 1994-03-18 1997-03-27 Salzgitter Anlagenbau Verfahren zur kontinuierlichen Herstellung von alpha-Calciumsulfat-Halbhydrat aus Calciumsulfat-Dihydrat

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2282091A (en) * 1938-10-17 1942-05-05 Oliver F Redd Process for preparing calcined gypsum
GB1262083A (en) * 1968-05-28 1972-02-02 Bpb Industries Ltd alpha-CALCIUM SULPHATE HEMIHYDRATE
US3527447A (en) * 1968-12-23 1970-09-08 United States Gypsum Co Process for the preparation of calcined gypsum
DE2310799A1 (de) * 1972-03-08 1973-09-13 United States Gypsum Co Verfahren zum herstellen von calciniertem gips mit geringer dichte
JPS5260293A (en) * 1975-11-12 1977-05-18 Mitsui Toatsu Chem Inc Method for continuous production of alpha-gypsum hemihydrate
JPS56145116A (en) * 1980-04-14 1981-11-11 Idemitsu Kosan Co Ltd Continuous preparation of light gypsum
DE3109879A1 (de) * 1981-03-14 1982-09-23 Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck "verfahren zur beseitigung von zwangslaeufig anfallenden abfallprodukten hinter kohlekraftwerken und deren nutzung unter verwendung von abfallwaerme aus dem kraftwerk zur herstellung von vorzugsweise dammbaustoffen fuer den untertaegigen bergbau"
DE3114555C2 (de) * 1981-04-10 1984-12-13 Gebr. Knauf Westdeutsche Gipswerke, 8715 Iphofen Verwendung eines hydraulisch abbindenden Mehrkomponenten-Gemisches
DE3239669A1 (de) * 1982-10-27 1984-05-03 Joh. A. Benckiser Gmbh, 6700 Ludwigshafen Kontinuierliches verfahren zur gewinnung von industriell verwertbarem gips aus industrie-abfallgips
DE3331838A1 (de) * 1983-09-03 1985-03-21 Gottfried Bischoff Bau kompl. Gasreinigungs- und Wasserrückkühlanlagen GmbH & Co KG, 4300 Essen Verfahren zur umsetzung des rueckstandes aus rauchgas-entschwefelungsanlagen zu alphahalbhydrat-gipskristallen
CA1258961A (en) * 1984-09-17 1989-09-05 Yoshihiko Kudo PROCESS FOR PRODUCING .alpha.-FORM GYPSUM HEMIHYDRATE
DE3502637A1 (de) * 1985-01-26 1986-09-11 Frank W. Dr.-Ing. 6600 Saarbrücken Fink Verfahren zum kalzinieren von stueckigem rauchgasentschwefelungsgips mittels dampfeinwirkung

Also Published As

Publication number Publication date
NL8800727A (nl) 1988-11-01
FR2613346A1 (fr) 1988-10-07
DE3711367C2 (enrdf_load_stackoverflow) 1989-01-19
BE1002661A3 (fr) 1991-04-30
DE3711367A1 (de) 1988-10-13
LU87158A1 (de) 1988-08-23

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse