CA1115025A - Process for producing calcium sulfate - Google Patents

Process for producing calcium sulfate

Info

Publication number
CA1115025A
CA1115025A CA318,237A CA318237A CA1115025A CA 1115025 A CA1115025 A CA 1115025A CA 318237 A CA318237 A CA 318237A CA 1115025 A CA1115025 A CA 1115025A
Authority
CA
Canada
Prior art keywords
calcium sulfate
acid
alpha
anhydrite
type
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
CA318,237A
Other languages
English (en)
French (fr)
Inventor
Shinho Shiho
Shiro Kozakura
Masahiko Shiraishi
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.)
Idemitsu Kosan Co Ltd
Original Assignee
Idemitsu Kosan Co Ltd
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 JP15945577A external-priority patent/JPS5499098A/ja
Priority claimed from JP8096778A external-priority patent/JPS5510406A/ja
Application filed by Idemitsu Kosan Co Ltd filed Critical Idemitsu Kosan Co Ltd
Application granted granted Critical
Publication of CA1115025A publication Critical patent/CA1115025A/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
    • C04B11/02—Methods and apparatus for dehydrating gypsum
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/02—Compounds of alkaline earth metals or magnesium
    • C09C1/025—Calcium sulfates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/10—Solid density

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)
  • Compositions Of Macromolecular Compounds (AREA)
  • Catalysts (AREA)
CA318,237A 1977-12-29 1978-12-19 Process for producing calcium sulfate Expired CA1115025A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP15945577A JPS5499098A (en) 1977-12-29 1977-12-29 Production of satin spar gypsum or spherical gypsum formed from said gypsum
JP159455/1977 1977-12-29
JP8096778A JPS5510406A (en) 1978-07-05 1978-07-05 Production of gypsum
JP80967/1978 1978-07-05

Publications (1)

Publication Number Publication Date
CA1115025A true CA1115025A (en) 1981-12-29

Family

ID=26421929

Family Applications (1)

Application Number Title Priority Date Filing Date
CA318,237A Expired CA1115025A (en) 1977-12-29 1978-12-19 Process for producing calcium sulfate

Country Status (5)

Country Link
CA (1) CA1115025A (de)
DE (1) DE2854722C2 (de)
FR (1) FR2413339B1 (de)
GB (2) GB2053874B (de)
IT (1) IT1158192B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015085236A1 (en) * 2013-12-06 2015-06-11 Flint Hills Resources, Lp Gypsum composite modifiers
WO2015085133A1 (en) * 2013-12-06 2015-06-11 Georgia-Pacific Gypsum Llc Calcium sulfate crystals and methods for making the same

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4818287A (en) * 1982-05-19 1989-04-04 Georgia-Pacific Corporation Fiber reinforced plaster molds for metal casting
US5148645A (en) * 1984-02-27 1992-09-22 Georgia-Pacific Corporation Use of fibrous mat-faced gypsum board in shaft wall assemblies and improved fire resistant board
US4664707A (en) * 1985-04-09 1987-05-12 Georgia-Pacific Corporation Fire resistant gypsum composition
US4722866A (en) * 1985-04-09 1988-02-02 Georgia-Pacific Corporation Fire resistant gypsum board
DE3615717A1 (de) * 1986-05-09 1987-11-12 Benckiser Gmbh Joh A Verfahren zur hydrothermalen umwandlung von rauchgasentschwefelungsgips in calciumsulfat-(alpha)-hemihydrat
EP0416089A4 (en) * 1989-03-16 1991-08-07 United States Gypsum Company Process and apparatus for producing calcium sulfate microfibers
US5401588A (en) * 1992-12-23 1995-03-28 Georgia-Pacific Resins Inc. Gypsum microfiber sheet material
RU2210540C1 (ru) * 2002-05-27 2003-08-20 Мясников Николай Федорович Способ получения гипсового вяжущего
FR2856679B1 (fr) * 2003-06-26 2006-12-22 Couturier Jean Procede de preparation d'anhydrite iii stabilise a partir de platre.
FR2950879B1 (fr) * 2009-10-02 2012-11-23 Cemex Res Group Ag Mortier a base d'anhydrite pour la fabrication chape fluide et procede de preparation d'anhydrite pour la fabrication d'un tel mortier

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1356700A (fr) * 1963-05-10 1964-03-27 Giulini Gmbh Soc Geb Procédé pour la fabrication de plâtres semi-hydratés de haute qualite
GB1079502A (en) * 1963-05-28 1967-08-16 Cafferata & Co Ltd Improvements in and relating to the production of calcium sulphate hemihydrate
GB1051849A (de) * 1963-12-03
GB1248037A (en) * 1968-01-13 1971-09-29 Fisons Ltd Calcium sulphate
US3822340A (en) * 1972-03-27 1974-07-02 Franklin Key Calcium sulfate whisker fibers and the method for the manufacture thereof
JPS593406B2 (ja) * 1974-05-15 1984-01-24 三菱重工業株式会社 アルフア−ガタハンスイセツコウ ノ セイゾウホウホウ
US4029512A (en) * 1974-08-05 1977-06-14 Johns-Manville Corporation Method for the preparation of fibrous insoluble calcium sulfate anhydrite
JPS5248594A (en) * 1975-10-17 1977-04-18 Kureha Chem Ind Co Ltd Method for producing type gypsum hemihydrate
JPS52156199A (en) * 1976-06-22 1977-12-26 Onoda Cement Co Ltd Production of gypsum fiber
DE2729842B2 (de) * 1977-07-01 1979-05-23 Skw Trostberg Ag, 8223 Trostberg Verfahren zur Herstellung von anorganischen Fasern auf Basis von Calciumsulfat

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015085236A1 (en) * 2013-12-06 2015-06-11 Flint Hills Resources, Lp Gypsum composite modifiers
WO2015085133A1 (en) * 2013-12-06 2015-06-11 Georgia-Pacific Gypsum Llc Calcium sulfate crystals and methods for making the same
WO2015085139A1 (en) * 2013-12-06 2015-06-11 Georgia-Pacific Gypsum Llc Gypsum composite modifiers

Also Published As

Publication number Publication date
IT1158192B (it) 1987-02-18
GB2011363B (en) 1982-07-14
FR2413339B1 (fr) 1985-11-08
DE2854722A1 (de) 1979-07-05
FR2413339A1 (fr) 1979-07-27
GB2053874A (en) 1981-02-11
GB2011363A (en) 1979-07-11
GB2053874B (en) 1982-07-28
DE2854722C2 (de) 1985-09-19
IT7852460A0 (it) 1978-12-27

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Legal Events

Date Code Title Description
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