NL7812109A - Werkwijze voor het bereiden van calciumsulfaat- anhydriet en calciumsulfaatanhydriet verkregen volgens deze werkwijze. - Google Patents

Werkwijze voor het bereiden van calciumsulfaat- anhydriet en calciumsulfaatanhydriet verkregen volgens deze werkwijze. Download PDF

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Publication number
NL7812109A
NL7812109A NL7812109A NL7812109A NL7812109A NL 7812109 A NL7812109 A NL 7812109A NL 7812109 A NL7812109 A NL 7812109A NL 7812109 A NL7812109 A NL 7812109A NL 7812109 A NL7812109 A NL 7812109A
Authority
NL
Netherlands
Prior art keywords
recrystallization
calcium sulphate
anhydrite
preparation
calcium sulfate
Prior art date
Application number
NL7812109A
Other languages
English (en)
Dutch (nl)
Original Assignee
Stamicarbon
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 Stamicarbon filed Critical Stamicarbon
Priority to NL7812109A priority Critical patent/NL7812109A/nl
Priority to JP15905079A priority patent/JPS5580720A/ja
Priority to EP79200754A priority patent/EP0012487B1/fr
Priority to SU792851660A priority patent/SU952100A3/ru
Priority to ES486803A priority patent/ES486803A1/es
Priority to DE7979200754T priority patent/DE2962749D1/de
Priority to AT79200754T priority patent/ATE957T1/de
Priority to DD79217647A priority patent/DD147938A5/de
Priority to IE2402/79A priority patent/IE49233B1/en
Priority to IN580/CAL/80A priority patent/IN154049B/en
Publication of NL7812109A publication Critical patent/NL7812109A/nl
Priority to US06/257,475 priority patent/US4387083A/en

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
    • C04B11/05—Calcium sulfate cements obtaining anhydrite, e.g. Keene's cement
    • 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
    • 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
    • C01P2004/60—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
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Paper (AREA)
NL7812109A 1978-12-13 1978-12-13 Werkwijze voor het bereiden van calciumsulfaat- anhydriet en calciumsulfaatanhydriet verkregen volgens deze werkwijze. NL7812109A (nl)

Priority Applications (11)

Application Number Priority Date Filing Date Title
NL7812109A NL7812109A (nl) 1978-12-13 1978-12-13 Werkwijze voor het bereiden van calciumsulfaat- anhydriet en calciumsulfaatanhydriet verkregen volgens deze werkwijze.
JP15905079A JPS5580720A (en) 1978-12-13 1979-12-07 Manufacture of calcium sulfate anhydrite and calcium sulfate anhydrite thereby
DE7979200754T DE2962749D1 (en) 1978-12-13 1979-12-12 Process for the preparation of calcium sulphate anhydrite and calcium sulphate anhydrite obtained by this process
SU792851660A SU952100A3 (ru) 1978-12-13 1979-12-12 Способ получени ангидрита сульфата кальци
ES486803A ES486803A1 (es) 1978-12-13 1979-12-12 Un procedimiento para la preparacion de sulfato de calcio anhidrita
EP79200754A EP0012487B1 (fr) 1978-12-13 1979-12-12 Procédé de préparation d'anhydrite de sulfate de calcium et anhydrite de sulfate de calcium obtenu selon ce procédé
AT79200754T ATE957T1 (de) 1978-12-13 1979-12-12 Verfahren zur herstellung von calciumsulfat-anhydrit und nach diesem verfahren erhaltenes calciumsulfat-anhydrit.
DD79217647A DD147938A5 (de) 1978-12-13 1979-12-13 Verfahren zur herstellung von calciumsulfatanhydrit
IE2402/79A IE49233B1 (en) 1978-12-13 1979-12-21 Process for the preparation of calcium sulphate anhydrite and calcium sulphate anhydrite obtained by this process
IN580/CAL/80A IN154049B (fr) 1978-12-13 1980-05-15
US06/257,475 US4387083A (en) 1978-12-13 1981-04-24 Process for the preparation of calcium sulphate anhydrite and calcium sulphate anhydrite obtained by this process

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7812109A NL7812109A (nl) 1978-12-13 1978-12-13 Werkwijze voor het bereiden van calciumsulfaat- anhydriet en calciumsulfaatanhydriet verkregen volgens deze werkwijze.
NL7812109 1978-12-13

Publications (1)

Publication Number Publication Date
NL7812109A true NL7812109A (nl) 1980-06-17

Family

ID=19832061

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7812109A NL7812109A (nl) 1978-12-13 1978-12-13 Werkwijze voor het bereiden van calciumsulfaat- anhydriet en calciumsulfaatanhydriet verkregen volgens deze werkwijze.

Country Status (11)

Country Link
US (1) US4387083A (fr)
EP (1) EP0012487B1 (fr)
JP (1) JPS5580720A (fr)
AT (1) ATE957T1 (fr)
DD (1) DD147938A5 (fr)
DE (1) DE2962749D1 (fr)
ES (1) ES486803A1 (fr)
IE (1) IE49233B1 (fr)
IN (1) IN154049B (fr)
NL (1) NL7812109A (fr)
SU (1) SU952100A3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0044120A2 (fr) * 1980-07-15 1982-01-20 Stamicarbon B.V. Procédé pour la préparation d'acide phosphorique et de sulfate de calcium anhydrite

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0044005B1 (fr) * 1980-07-14 1984-09-26 HIS Handels- und Industriebedarf GmbH Préparation de gypse hémihydraté par usage de chaleur d'échappement, d'acide sulfurique aqueux et de sels sulfuriques
US4452770A (en) * 1981-12-14 1984-06-05 United States Gypsum Company Phosphoanhydrite process
SE440069B (sv) * 1982-12-22 1985-07-15 Boliden Ab Forfarande for omkristallisation av gips
SE8302592L (sv) * 1983-05-06 1984-11-07 Boliden Ab Forfarande for framstellning av fibergips (iii)
SE8302591L (sv) * 1983-05-06 1984-11-07 Boliden Ab Forfarande for framstellning av fibergips (ii)
EP0237802B1 (fr) * 1986-02-20 1990-05-09 Gebr. Knauf Westdeutsche Gipswerke KG Procédé pour la préparation de sulfate de calcium sous la forme de l'anhydrite et de sulfates de calcium durcissant
DE3605393C1 (en) * 1986-02-20 1987-09-03 Knauf Westdeutsche Gips Process for the preparation of anhydrous calcium sulphate (anhydrite)
US5169444A (en) * 1986-02-20 1992-12-08 Gebruder Knauf Westdeutsche Gipswerke Kg Process for preparing calcium sulfate anhydrite
DE3714035A1 (de) * 1986-07-25 1988-11-24 Knauf Westdeutsche Gips Verfahren zur herstellung von abbindefaehigen calciumsulfaten und ihre verwendung
GB8701263D0 (en) * 1987-01-21 1987-02-25 Ecc Int Ltd Forming concentrated aqueous suspension
FR2658075B1 (fr) * 1990-02-14 1992-05-07 Oreal Composition cosmetique filtrante photostable contenant un filtre uv-a et un beta,beta-diphenylacrylate ou alpha-cyano-beta,beta-diphenylacrylate d'alkyle.
US5964940A (en) * 1998-04-20 1999-10-12 Wilson; Harold W. Process for increasing the water solubility of gypsum
US7556791B2 (en) * 2006-12-20 2009-07-07 United States Gypsum Company Gypsum anhydrite fillers and process for making same
CN102634843B (zh) * 2012-04-27 2015-04-22 昆明理工大学 一种磷石膏制取微米级硫酸钙颗粒和晶须的方法
CN113603128A (zh) * 2021-09-08 2021-11-05 西南科技大学 工业副产石膏制备多种硫酸钙粉体的方法以及硫酸钙粉体
CN113772709B (zh) * 2021-09-30 2023-05-30 贵州大学 一种利用磷石膏制备无水微米硫酸钙的方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2021910A (en) * 1935-11-26 Preparation of calcium sulphate
US2006342A (en) * 1934-05-18 1935-07-02 Krebs Pigment & Color Corp Process of making anhydrite
US2151339A (en) * 1935-04-20 1939-03-21 Du Pont Process of making calcium sulphate
US2197953A (en) * 1937-12-02 1940-04-23 Du Pont Process for making anhydrite
GB561205A (en) * 1942-07-13 1944-05-10 Francis Robert Himsworth Improvements in or relating to the production of gypsum from anhydrite
US2956859A (en) * 1957-12-26 1960-10-18 Nat Lead Co Preparation of anhydrite
GB848617A (en) * 1957-12-26 1960-09-21 Nat Lead Co Improvements in or relating to the preparation of anhydrite
US2999007A (en) * 1958-07-29 1961-09-05 American Cyanamid Co Process of preparing anhydrite of improved whiteness from off-white gypsum
GB1101771A (en) * 1963-08-14 1968-01-31 Bpb Industries Ltd Improvements relating to the production of gypsum plaster
IL23004A (en) * 1964-02-27 1969-03-27 Fosindus Co Process for the purification of residual gypsum produced in the manufacture of phosphoric acid by the reaction of sulphuric acid with natural phosphates
GB1081895A (en) * 1965-11-09 1967-09-06 Occidental Res & Eng Improvements relating to the production of phosphoric acids
US4146568A (en) * 1977-08-01 1979-03-27 Olin Corporation Process for reducing radioactive contamination in waste product gypsum

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0044120A2 (fr) * 1980-07-15 1982-01-20 Stamicarbon B.V. Procédé pour la préparation d'acide phosphorique et de sulfate de calcium anhydrite
EP0044120A3 (en) * 1980-07-15 1982-01-27 Stamicarbon B.V. Process for the preparation of phosphoric acid and calcium sulphate anhydrite as well as phosphoric acid and calcium sulphate anhydrite obtained by this process

Also Published As

Publication number Publication date
ATE957T1 (de) 1982-05-15
SU952100A3 (ru) 1982-08-15
EP0012487B1 (fr) 1982-05-05
DE2962749D1 (en) 1982-06-24
IE49233B1 (en) 1985-09-04
US4387083A (en) 1983-06-07
IE792402L (en) 1980-06-13
EP0012487A1 (fr) 1980-06-25
JPS5580720A (en) 1980-06-18
ES486803A1 (es) 1980-06-16
DD147938A5 (de) 1981-04-29
IN154049B (fr) 1984-09-15

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