ES2052695T3 - Procedimiento para la formacion de sulfato calcico finamente dividido. - Google Patents

Procedimiento para la formacion de sulfato calcico finamente dividido.

Info

Publication number
ES2052695T3
ES2052695T3 ES88300249T ES88300249T ES2052695T3 ES 2052695 T3 ES2052695 T3 ES 2052695T3 ES 88300249 T ES88300249 T ES 88300249T ES 88300249 T ES88300249 T ES 88300249T ES 2052695 T3 ES2052695 T3 ES 2052695T3
Authority
ES
Spain
Prior art keywords
calcium sulphate
aqueous suspension
weight
suspension
microns
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 - Lifetime
Application number
ES88300249T
Other languages
English (en)
Inventor
Peter William Riley
Walter Brian Jepson
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.)
Imerys Minerals Ltd
Original Assignee
ECC International 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 International Ltd filed Critical ECC International Ltd
Application granted granted Critical
Publication of ES2052695T3 publication Critical patent/ES2052695T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C04B28/142—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)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Structural 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)
  • Crushing And Grinding (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Colloid Chemistry (AREA)
  • Saccharide Compounds (AREA)

Abstract

SE DESCRIBE UN PROCEDIMIENTO PARA OBTENER SULFATO DE CALCIO CON UNA DISTRIBUCION DEL TAMAÑO DE PARTICULAS TAL QUE POR LO MENOS EL 50 % EN PESO DE LAS PARTICULAS TIENEN UN DIAMETRO ESFERICO EQUIVALENTE MENOR QUE 2 MICRAS, PROCEDIMIENTO QUE COMPRENDE LAS ETAPAS SIGUIENTES: (A) MEZCLAR SULFATO CALCICO RELATIVAMENTE GRUESO CON AGUA PARA FORMAR UNA SUSPENSION ACUOSA QUE TIENE DE 5 A 45 % EN PESO DE SOLIDOS SECOS; B) DESMENUZAR EL SULFATO CALCICO EN LA SUSPENSION FORMADA EN LA ETAPA (A) AGITANDO LA SUSPENSION EN MEZCLA CON UN MEDIO DE PULVERIZACION DE PARTICULAS, TAL QUE POR LO MENOS EL 50 % EN PESO DE LAS PARTICULAS TIENEN UN DIAMETRO ESFERICO EQUIVALENTE MENOR QUE 2 MICRAS; C) SEPARAR LA SUSPENSION ACUOSA DEL SULFATO CALCICO FORMADO EN LA ETAPA (B) DEL MEDIO DE PULVERIZACION DE PARTICULAS; Y (D) DESAGUAR LA SUSPENSION ACUOSA EN UN FILTRO PRENSA A UNA PRESION DE POR LO MENOS 3,45 MPA; Y DONDE LAS ETAPAS (A) A (D) SE LLEVAN A CABO EN AUSENCIA DE UN AGENTE DISPERSANTE. TAMBIEN SE DESCRIBE UN PROCEDIMIENTO PARA PREPARAR UNA SUSPENSION ACUOSA DE SULFATO CALCICO FINAMENTE DIVIDIDO.
ES88300249T 1987-01-21 1988-01-13 Procedimiento para la formacion de sulfato calcico finamente dividido. Expired - Lifetime ES2052695T3 (es)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ES2052695T3 true ES2052695T3 (es) 1994-07-16

Family

ID=10610981

Family Applications (1)

Application Number Title Priority Date Filing Date
ES88300249T Expired - Lifetime ES2052695T3 (es) 1987-01-21 1988-01-13 Procedimiento para la formacion de sulfato calcico finamente dividido.

Country Status (7)

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

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 (fi) * 2007-02-02 2007-02-02 Kemira Oyj Kipsituote ja menetelmä sen valmistamiseksi
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
FI880113A (fi) 1988-07-22
EP0276077A2 (en) 1988-07-27
GB8701263D0 (en) 1987-02-25
EP0276077B1 (en) 1992-12-23
JPH0710728B2 (ja) 1995-02-08
FI90758C (fi) 1994-03-25
JPS63260816A (ja) 1988-10-27
GB2200103B (en) 1990-11-28
DE3876814D1 (de) 1993-02-04
DE3876814T2 (de) 1993-07-08
GB8800716D0 (en) 1988-02-10
FI90758B (fi) 1993-12-15
ATE83753T1 (de) 1993-01-15
FI880113A0 (fi) 1988-01-12
EP0276077A3 (en) 1989-07-05
GB2200103A (en) 1988-07-27

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AU603215B2 (en) Natural calcium carbonate ores
ES2052695T3 (es) Procedimiento para la formacion de sulfato calcico finamente dividido.
US3599879A (en) Grinding treatment of clay
EP0298777A3 (en) Method of producing fine particles
IT1252557B (it) Procedimento per la preparazione di miscele concentrate di carbone in acqua a basso contenuto di ceneri

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