FI880113A0 - Förfarande för bildande av finfördelat kalciumsulfat - Google Patents

Förfarande för bildande av finfördelat kalciumsulfat

Info

Publication number
FI880113A0
FI880113A0 FI880113A FI880113A FI880113A0 FI 880113 A0 FI880113 A0 FI 880113A0 FI 880113 A FI880113 A FI 880113A FI 880113 A FI880113 A FI 880113A FI 880113 A0 FI880113 A0 FI 880113A0
Authority
FI
Finland
Prior art keywords
calcium sulphate
aqueous suspension
weight
suspension
microns
Prior art date
Application number
FI880113A
Other languages
English (en)
Finnish (fi)
Other versions
FI90758B (sv
FI90758C (sv
FI880113A (sv
Inventor
Peter William Riley
Walter Brian Jepson
Original Assignee
Ecc Int 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
Application filed by Ecc Int Ltd filed Critical Ecc Int Ltd
Publication of FI880113A0 publication Critical patent/FI880113A0/sv
Publication of FI880113A publication Critical patent/FI880113A/sv
Publication of FI90758B publication Critical patent/FI90758B/sv
Application granted granted Critical
Publication of FI90758C publication Critical patent/FI90758C/sv

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
    • C04B28/142—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
    • C04B28/143—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 phosphogypsum
    • 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
    • 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
    • C09C1/027—Barium 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)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Geology (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Saccharide Compounds (AREA)
  • Colloid Chemistry (AREA)
  • Crushing And Grinding (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)
FI880113A 1987-01-21 1988-01-12 Förfarande för bildande av finfördelat kalciumsulfat FI90758C (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB878701263A GB8701263D0 (en) 1987-01-21 1987-01-21 Forming concentrated aqueous suspension
GB8701263 1987-01-21

Publications (4)

Publication Number Publication Date
FI880113A0 true FI880113A0 (sv) 1988-01-12
FI880113A FI880113A (sv) 1988-07-22
FI90758B FI90758B (sv) 1993-12-15
FI90758C FI90758C (sv) 1994-03-25

Family

ID=10610981

Family Applications (1)

Application Number Title Priority Date Filing Date
FI880113A FI90758C (sv) 1987-01-21 1988-01-12 Förfarande för bildande av finfördelat kalciumsulfat

Country Status (7)

Country Link
EP (1) EP0276077B1 (sv)
JP (1) JPH0710728B2 (sv)
AT (1) ATE83753T1 (sv)
DE (1) DE3876814T2 (sv)
ES (1) ES2052695T3 (sv)
FI (1) FI90758C (sv)
GB (2) GB8701263D0 (sv)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2257379B (en) * 1991-07-09 1995-04-19 Ecc Int Ltd Comminution in a planetary mill
GB2275876B (en) * 1993-03-12 1996-07-17 Ecc Int Ltd Grinding alkaline earth metal pigments
FI20070093A0 (sv) * 2007-02-02 2007-02-02 Kemira Oyj Gipsprodukt och förfarande för framställning av densamma
JP5230140B2 (ja) * 2007-08-09 2013-07-10 株式会社トクヤマ 二水石膏の製造方法
US7861955B2 (en) * 2007-11-15 2011-01-04 United States Gypsum Company Wet-grinding gypsum with polycarboxylates
US20120090508A1 (en) * 2010-10-19 2012-04-19 United States Gypsum Company Method for producing wet gypsum accelerator
US11002010B2 (en) * 2018-05-01 2021-05-11 United States Gypsum Company Methods for making high sound transmission class gypsum boards and gypsum boards made by the method

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2188494A (en) * 1937-09-20 1940-01-30 Corn Prod Refining Co Filler and method of making same
GB1309074A (en) * 1969-03-18 1973-03-07 English Clays Lovering Pochin Grinding of minerals
GB1452555A (en) * 1972-10-05 1976-10-13 English Clays Lovering Pochin Tube pressure filters
GB1500697A (en) * 1974-04-10 1978-02-08 English Clays Lovering Pochin Particulate solid materials
GB1599632A (en) * 1977-01-19 1981-10-07 English Clays Lovering Pochin Comminution of solid materials
NL7812109A (nl) * 1978-12-13 1980-06-17 Stamicarbon Werkwijze voor het bereiden van calciumsulfaat- anhydriet en calciumsulfaatanhydriet verkregen volgens deze werkwijze.
GB2072032B (en) * 1980-03-18 1983-09-01 English Clays Lovering Pochin Pressure filter
JPS5722118A (en) * 1980-07-14 1982-02-05 Onoda Cement Co Ltd Modifying method of gypsum formed in preparing phosphoric acid by wet process as by-product
DE3246232A1 (de) * 1982-12-14 1984-06-14 Bleeck, Jörg, Dipl.-Ing., 5309 Meckenheim Verfahren zur nassaufmahlung von natuerlichen und synthetischen calciumcarbonaten
JPS60187324A (ja) * 1984-03-08 1985-09-24 Konishiroku Photo Ind Co Ltd 固体分散液の製造方法
DE3511945A1 (de) * 1985-04-01 1986-10-02 Gypsum Research S.A., Zug Verfahren zur herstellung von streichpigmenten und fuellstoffen fuer papiere, pappe und karton aus gips
SE8501773D0 (sv) * 1985-04-11 1985-04-11 Berol Kemi Ab Bestrykningskomposition for papper

Also Published As

Publication number Publication date
GB2200103B (en) 1990-11-28
GB8800716D0 (en) 1988-02-10
GB2200103A (en) 1988-07-27
JPS63260816A (ja) 1988-10-27
EP0276077A3 (en) 1989-07-05
JPH0710728B2 (ja) 1995-02-08
FI90758B (sv) 1993-12-15
EP0276077B1 (en) 1992-12-23
FI90758C (sv) 1994-03-25
EP0276077A2 (en) 1988-07-27
GB8701263D0 (en) 1987-02-25
ES2052695T3 (es) 1994-07-16
DE3876814D1 (de) 1993-02-04
FI880113A (sv) 1988-07-22
ATE83753T1 (de) 1993-01-15
DE3876814T2 (de) 1993-07-08

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FI880113A0 (sv) Förfarande för bildande av finfördelat kalciumsulfat
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Legal Events

Date Code Title Description
BB Publication of examined application
MM Patent lapsed
MM Patent lapsed

Owner name: ECC INTERNATIONAL LIMITED