BE881837A - PROCESS FOR PRODUCING A MIXTURE OF CALCIUM HEMIHYDRATE SULFATE AND CALCIUM DIHYDRATE SULFATE AND USES THEREOF - Google Patents

PROCESS FOR PRODUCING A MIXTURE OF CALCIUM HEMIHYDRATE SULFATE AND CALCIUM DIHYDRATE SULFATE AND USES THEREOF

Info

Publication number
BE881837A
BE881837A BE0/199485A BE199485A BE881837A BE 881837 A BE881837 A BE 881837A BE 0/199485 A BE0/199485 A BE 0/199485A BE 199485 A BE199485 A BE 199485A BE 881837 A BE881837 A BE 881837A
Authority
BE
Belgium
Prior art keywords
sulfate
calcium
mixture
producing
hemihydrate
Prior art date
Application number
BE0/199485A
Other languages
French (fr)
Original Assignee
Knauf Westdeutsche Gips
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 Knauf Westdeutsche Gips filed Critical Knauf Westdeutsche Gips
Publication of BE881837A publication Critical patent/BE881837A/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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F15/00—Methods or devices for placing filling-up materials in underground workings
    • E21F15/005—Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
BE0/199485A 1979-03-02 1980-02-21 PROCESS FOR PRODUCING A MIXTURE OF CALCIUM HEMIHYDRATE SULFATE AND CALCIUM DIHYDRATE SULFATE AND USES THEREOF BE881837A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792908266 DE2908266C2 (en) 1979-03-02 1979-03-02 Process for the production of a calcium sulfate hemihydrate dihydrate mixture from finely divided synthetic calcium sulfate hemihydrate

Publications (1)

Publication Number Publication Date
BE881837A true BE881837A (en) 1980-06-16

Family

ID=6064339

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/199485A BE881837A (en) 1979-03-02 1980-02-21 PROCESS FOR PRODUCING A MIXTURE OF CALCIUM HEMIHYDRATE SULFATE AND CALCIUM DIHYDRATE SULFATE AND USES THEREOF

Country Status (4)

Country Link
BE (1) BE881837A (en)
DE (1) DE2908266C2 (en)
FR (1) FR2460900A1 (en)
NL (1) NL8000481A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2526416A1 (en) * 1982-05-07 1983-11-10 Weber Sa A METHOD FOR MAKING DAMS FOR FLAT OR ALLOY-DRAFTED MINES, DEVICE FOR CARRYING OUT SAID METHOD, AND MIXTURE USED
DE3442926C1 (en) * 1984-11-24 1985-07-25 Saarbergwerke AG, 6600 Saarbrücken Process for the pneumatic conveying of a blowable extremely fine-grain gypsum-based construction material composition from above ground to underground for use
GB2179932A (en) * 1985-09-05 1987-03-18 Aeci Ltd Settable plaster composition
EP1250222A4 (en) 2000-01-05 2003-04-16 Saint Gobain Technical Fabrics Smooth reinforced cementitious boards and methods of making same
US7585485B2 (en) * 2006-07-03 2009-09-08 Tripoliven, C.A. Process for the physiochemical conditioning of chemical gypsum or phospho-gypsum for use in formulation for cement and other construction materials
WO2019035782A1 (en) * 2017-08-15 2019-02-21 Inkaya Yonca A method of obtaining building materials by arranging/adjusting and/or improving the amount of strontium (sr) element in the structure of calcium sulphates

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1169355B (en) * 1961-06-16 1964-04-30 Knauf Geb Process for the production of large-sized products from fine-grained sulphurous-acid calcium, which falls off in the chemical industry
FR1531830A (en) * 1967-07-11 1968-07-05 Central Glass Co Ltd Gypsum granulation process
DE1646972A1 (en) * 1967-09-26 1971-08-12 Rigips Baustoffwerke Gmbh Process for granulating calcium sulfate hemihydrate
DE2146777B2 (en) * 1971-09-18 1976-07-01 Gebr. Knauf Westdeutsche Gipswerke, 8715Iphofen PROCESS FOR THE PRODUCTION OF SETTING CAPABLE CALCIUM SULPHATES FROM FINE PARTICULATE CALCIUM SULPHATES
DE2216039C3 (en) * 1972-04-01 1981-09-17 Gebr. Knauf Westdeutsche Gipswerke, 8715 Iphofen Hydraulically setting material for expansion purposes in mining
DE2350066B2 (en) * 1973-10-05 1977-01-20 Salzgitter Industriebau Gmbh, 3320 Salzgitter PROCESS FOR THE MANUFACTURE OF SETTABLE BUILDING MATERIALS FROM ALPHA CALCIUM SULFATE HEMIHYDRATE
DE2658915B2 (en) * 1976-12-24 1979-10-31 Gebr. Knauf Westdeutsche Gipswerke, 8715 Iphofen Process for the production of lumpy calcium sulfate dihydrate
DK369279A (en) * 1978-09-05 1980-03-06 United States Gypsum Co PROCEDURE FOR THE MANUFACTURE OF PLASTICS

Also Published As

Publication number Publication date
FR2460900A1 (en) 1981-01-30
NL8000481A (en) 1980-09-04
DE2908266C2 (en) 1986-01-09
DE2908266B1 (en) 1980-07-24

Similar Documents

Publication Publication Date Title
FR2532320B1 (en) PROCESS FOR PRODUCING A MIXTURE OF SYNTHETIC POLYMER AND SILICA
AU502853B2 (en) A process of making'portland cement
GB2205089B (en) Process for production of calcium sulphate alpha-hemihydrate
GB1549029A (en) Process for the conversion of gypsum into calcium sulphate hemihydrate
FR2513241B1 (en) PROCESS FOR PRODUCING A CONCRETE MIXTURE CONTAINING AIR-DRIVEN FLY ASH CEMENT
FR2483398B1 (en) PROCESS FOR PRODUCING INSULATION MATERIAL AND MATERIAL THEREOF
FR2310323A1 (en) PROCESS FOR THE PRODUCTION OF EXPANDING CEMENT AGGLOMERS WITH HIGH RESISTANCE
BE881837A (en) PROCESS FOR PRODUCING A MIXTURE OF CALCIUM HEMIHYDRATE SULFATE AND CALCIUM DIHYDRATE SULFATE AND USES THEREOF
GB2053874B (en) Production of calcium sulphate
JPS5447895A (en) Method of manufacturing calcium sulfate of raw material for manufacturing plaster and plaster board
BE881609A (en) PROCESS FOR PRODUCING AND ISOLATING METHYLTERTIOBUTYLETHER
FR2511015B1 (en) PROCESS FOR PRODUCING A MIXTURE OF A BUTADIAN-ACRYLONITRILE POLYMER AND ZINC PEROXIDE
FR2290403A1 (en) LIME HYDRATION PROCESS AND PRODUCT THUS OBTAINED
BE890558A (en) PROCESS FOR USING A MIXTURE OF CALCIUM SULPHITE DEHYDRATE AND CALCIUM SULFATE DI HYDRATE IN THE MANUFACTURE OF CEMENT
BE850644A (en) PROCESS FOR THE PREPARATION OF TIN (II) SULPHATE AND PRODUCT THUS OBTAINED
FR2548211B1 (en) PROCESS FOR PRODUCING TISSUE ACTIVATOR OF PLASMINOGEN AND ACTIVATOR OBTAINED THEREBY
FR2512834B1 (en) PROCESS FOR PRODUCING FINISHED PARTS OF HIGHLY ALLOYED FERRITIC MATERIALS AND PARTS OBTAINED
BE881438A (en) PROCESS FOR PRODUCING A MIXTURE OF ANHYDRITE-GYPSUM BASED ON FINE PARTICLE SYNTHETIC ANHYDRITE
BE886567A (en) PROCESS FOR PREPARING A MIXTURE OF HYDROXYLATED DISULFIDE AND TRISULFIDE
JPS52141835A (en) Production method of molded product from calcium sulfate dihydrate
FR2497190B2 (en) PROCESS FOR THE PRODUCTION OF AN ANHYDRITE-GYPSUM MIXTURE BASED ON FINE PARTICLE SYNTHETIC CALCIUM SULPHATE DIHYDRATE
BE849603A (en) MASS OF CONSTRUCTION MATERIAL BASED ON ALPHA-HEMIHYDRATE OF SULPHATE CALCIUM, ITS PREPARATION PROCESS AND ITS USE FOR THE FORMATION OF FLOOR COVERINGS
FR2294985A1 (en) METHOD AND APPARATUS FOR THE PREPARATION OF CALCIUM SULPHATE A-HEMILHYDRATE
FR2658809B1 (en) PROCESS FOR PRODUCING A CERAMIC MIXTURE OF POWDERS AND SUCH A MIXTURE.
BE843187A (en) PROCESS FOR MANUFACTURING A TOTAL MIXTURE OF FLAVONOIDS FROM PLANT MATERIALS

Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: FIRMA GEBR. KNAUF WESTDEUTSCHE GIPSWERKE

Effective date: 19870228