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NO974923L - Fremgangsmåte og innretning for behandling av pulverformig calsium sulfat samt et hydraulisk bindemiddel - Google Patents

Fremgangsmåte og innretning for behandling av pulverformig calsium sulfat samt et hydraulisk bindemiddel

Info

Publication number
NO974923L
NO974923L NO974923A NO974923A NO974923L NO 974923 L NO974923 L NO 974923L NO 974923 A NO974923 A NO 974923A NO 974923 A NO974923 A NO 974923A NO 974923 L NO974923 L NO 974923L
Authority
NO
Norway
Prior art keywords
calcium sulfate
hydraulic binder
anhydrite
powdered calcium
powdered
Prior art date
Application number
NO974923A
Other languages
English (en)
Other versions
NO974923D0 (no
Inventor
Christian Dussel
Original Assignee
Energetic Ind Int Sa
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 Energetic Ind Int Sa filed Critical Energetic Ind Int Sa
Publication of NO974923D0 publication Critical patent/NO974923D0/no
Publication of NO974923L publication Critical patent/NO974923L/no

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
    • C04B11/028—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path being carried by a conveyor
    • F27B9/2453—Vibrating conveyor (shaker hearth furnace)

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Cookers (AREA)
  • Furnace Details (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Powder Metallurgy (AREA)
  • Fireproofing Substances (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

En fremgangsmåte for bearbeiding av et pulverformig kalsiumsulfatmateriale for å oppnå et hydraulisk bindemiddel, omfatter en kombinasjon av de følgende to suksessive behandlingstrinn: (a) oppvarming av det pulverformige materiale i en brenningstunnel (1) ved en temperatur av 220 til 360°C under betingelser som primært favoriserer dannelse av et anhydritt-cc-kalsiumsulfat, og (b) å underkaste det oppvarmede materiale en termisk herding i en avkjølingsaparatur (2) med hjelp av en kold, tørr gass for å stabilisere det oppnådde a- anhydritt, og å forhindre dettes omdanning til andre krystallografiske typer. Fremgangsmåten gir et hydraulisk bindemiddel med et a-anhydritt-innhold på mer enn 35 vekt-% og med forsterket styrke og oppførsel for de opnådde produkter når det gjelder mekaniske egenskaper og brannmotstandsevne.
NO974923A 1995-04-25 1997-10-24 Fremgangsmåte og innretning for behandling av pulverformig calsium sulfat samt et hydraulisk bindemiddel NO974923L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9505189A FR2733496B1 (fr) 1995-04-25 1995-04-25 Procede et installation de traitement d'une matiere pulverulente a base de sulfate de calcium, nouveau liant hydraulique
PCT/FR1996/000622 WO1996033957A1 (fr) 1995-04-25 1996-04-24 Procede et installation de traitement d'une matiere pulverulente a base de sulfate de calcium, nouveau liant hydraulique

Publications (2)

Publication Number Publication Date
NO974923D0 NO974923D0 (no) 1997-10-24
NO974923L true NO974923L (no) 1997-12-11

Family

ID=9478590

Family Applications (1)

Application Number Title Priority Date Filing Date
NO974923A NO974923L (no) 1995-04-25 1997-10-24 Fremgangsmåte og innretning for behandling av pulverformig calsium sulfat samt et hydraulisk bindemiddel

Country Status (25)

Country Link
US (1) US6174362B1 (no)
EP (1) EP0824506B1 (no)
JP (1) JPH11509824A (no)
CN (1) CN1051536C (no)
AR (1) AR002891A1 (no)
AT (1) ATE181045T1 (no)
AU (1) AU695127B2 (no)
BG (1) BG101967A (no)
BR (1) BR9608275A (no)
CA (1) CA2219582A1 (no)
CZ (1) CZ315297A3 (no)
DE (1) DE69602837T2 (no)
DK (1) DK0824506T3 (no)
ES (1) ES2135231T3 (no)
FR (1) FR2733496B1 (no)
GR (1) GR3031177T3 (no)
HU (1) HUP9802919A3 (no)
NO (1) NO974923L (no)
NZ (1) NZ307583A (no)
OA (1) OA10529A (no)
PL (1) PL323156A1 (no)
RO (1) RO117369B1 (no)
RU (1) RU2157350C2 (no)
TR (1) TR199701243T1 (no)
WO (1) WO1996033957A1 (no)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2767815A1 (fr) * 1997-08-27 1999-02-26 Jean Couturier Procede de traitement de sulfate de calcium et liant hydraulique ainsi obtenu
FR2804423B1 (fr) * 2000-01-28 2002-11-22 Energetic Ind Internat Anhydrite iii ou alpha stabilise, procede et installation industrielle de production
FR2839969B1 (fr) 2002-05-27 2005-04-01 Jean Couturier Liant hydraulique resultant du melange d'un liant sulfatique et d'un liant a caractere pouzzolanique
PL1718576T3 (pl) * 2004-02-27 2017-07-31 United States Gypsum Company Wysokowydajny nieogniotrwały kocioł do kalcynowania gipsu i sposób dla niego
US7556791B2 (en) * 2006-12-20 2009-07-07 United States Gypsum Company Gypsum anhydrite fillers and process for making same
WO2013112060A1 (en) 2012-01-27 2013-08-01 Columbeanu Ion Hydraulic binder based on calcium sulphate, process for producing the same and specific uses thereof
RU2585601C1 (ru) * 2015-02-13 2016-05-27 Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Сибирский Федеральный Университет" Токоподвод обожженного анода алюминиевого электролизера
RU2584813C1 (ru) * 2015-02-19 2016-05-20 Павел Николаевич Манташьян Установка для дегидратации гипса
CN105837070B (zh) * 2016-04-15 2018-02-27 乌鲁木齐益好优科新材料有限公司 一种辐射制备硅烷衍生物改性无水硫酸钙的方法
US11512019B2 (en) * 2016-08-10 2022-11-29 Yoshino Gypsum Co., Ltd. Apparatus and method for treating gypsum
CN107337362A (zh) * 2017-08-18 2017-11-10 江苏夫科技股份有限公司 一种工业副产石膏煅烧器

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB824074A (en) * 1956-11-09 1959-11-25 Metallgesellschaft Ag Method of and apparatus for cooling hot granular material
US3145980A (en) * 1962-12-31 1964-08-25 Hupp Corp Continuous heat treating method and apparatus
GB1111711A (en) * 1964-08-05 1968-05-01 Fisons Ind Chemicals Ltd Plaster compositions
BE790039A (fr) * 1971-10-23 1973-02-01 Rheinstahl Ag Procede pour calciner le platre dans un courant de gaz de chauffe. (
DE3035590A1 (de) * 1980-09-20 1982-05-06 Ruhrkohle Ag Blasversatz von (alpha) -sulfathalbhydrat und/oder (beta) -sulfathalbhydrat
FR2572721B1 (fr) * 1984-11-08 1987-01-30 Delagne Christian Procede et installation de preparation de platre de haute resistance
WO1990008111A1 (de) * 1989-01-19 1990-07-26 Gebr. Knauf Westdeutsche Gipswerke Kg Verfahren zur herstellung von calciumsulfat-anhydrit
DK154692D0 (da) * 1992-12-23 1992-12-23 Smidth & Co As F L Fremgangsmaade og koeler til afkoeling af partikelformet materiale
DE4340879A1 (de) * 1993-12-01 1995-06-08 Horst P O Dr Wolf Arzneimittel zur Behandlung der Herzinsuffizienz

Also Published As

Publication number Publication date
CZ315297A3 (cs) 1998-03-18
HUP9802919A3 (en) 1999-04-28
CN1051536C (zh) 2000-04-19
AU5697396A (en) 1996-11-18
OA10529A (fr) 2002-04-29
ATE181045T1 (de) 1999-06-15
RU2157350C2 (ru) 2000-10-10
JPH11509824A (ja) 1999-08-31
DK0824506T3 (da) 1999-12-13
AR002891A1 (es) 1998-04-29
US6174362B1 (en) 2001-01-16
DE69602837D1 (de) 1999-07-15
HUP9802919A2 (hu) 1999-03-29
AU695127B2 (en) 1998-08-06
CN1182410A (zh) 1998-05-20
TR199701243T1 (xx) 1998-02-21
BG101967A (en) 1998-06-30
WO1996033957A1 (fr) 1996-10-31
BR9608275A (pt) 1999-05-11
FR2733496B1 (fr) 1997-06-27
ES2135231T3 (es) 1999-10-16
PL323156A1 (en) 1998-03-16
EP0824506B1 (fr) 1999-06-09
NO974923D0 (no) 1997-10-24
FR2733496A1 (fr) 1996-10-31
DE69602837T2 (de) 1999-12-09
NZ307583A (en) 1998-09-24
RO117369B1 (ro) 2002-02-28
GR3031177T3 (en) 1999-12-31
EP0824506A1 (fr) 1998-02-25
CA2219582A1 (fr) 1996-10-31

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Legal Events

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FC2A Withdrawal, rejection or dismissal of laid open patent application