ES2094955T3 - Procedimiento para preparar en un reactor semihidrato alpha, partiendo de dihidrato de sulfato de calcio. - Google Patents

Procedimiento para preparar en un reactor semihidrato alpha, partiendo de dihidrato de sulfato de calcio.

Info

Publication number
ES2094955T3
ES2094955T3 ES93105810T ES93105810T ES2094955T3 ES 2094955 T3 ES2094955 T3 ES 2094955T3 ES 93105810 T ES93105810 T ES 93105810T ES 93105810 T ES93105810 T ES 93105810T ES 2094955 T3 ES2094955 T3 ES 2094955T3
Authority
ES
Spain
Prior art keywords
reactor
calcium sulphate
preparing
procedure
starting
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
ES93105810T
Other languages
English (en)
Inventor
Oskar Will
Ulrich H Schalkhauser
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.)
Heidelberg Materials AG
Original Assignee
Heidelberger Zement AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6460116&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2094955(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Heidelberger Zement AG filed Critical Heidelberger Zement AG
Application granted granted Critical
Publication of ES2094955T3 publication Critical patent/ES2094955T3/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
    • C04B11/00—Calcium sulfate cements
    • C04B11/02—Methods and apparatus for dehydrating gypsum

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Processing Of Solid Wastes (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Saccharide Compounds (AREA)

Abstract

LA INVENCION TRATA DE UN PROCEDIMIENTO PARA LA PRODUCCION DE SULFATO CALCICO SEMIHIDRATADO EN CONFIGURACION ALFA A PARTIR DE SULFATO CALCICO DIHIDRATADO. SE PUEDEN REALIZAR DENTRO DEL REACTOR TODAS LAS ETAPAS NECESARIAS PARA EL PROCEDIMIENTO. CON ARREGLO A LA INVENCION SE AÑADE AL REACTOR MATERIA BRUTA FINAMENTE DIVIDIDA. SE LOGRA UNA BUENA TRANSMISION DE CALOR Y DISTRIBUCION DE TEMPERATURA A TRAVES DE UNA MEZCLA INTENSIVA Y MOVIBLE DEL MATERIAL A GRANEL EN ESTADO SOLIDO. SE CONTROLAN EL PROCESO DE TRANSFORMACION Y EL SECADO Y SE REGULAN LOS TIEMPOS PRESELECCIONADOS PARA REALIZAR LAS OPERACIONES MENCIONADAS.
ES93105810T 1992-05-30 1993-04-08 Procedimiento para preparar en un reactor semihidrato alpha, partiendo de dihidrato de sulfato de calcio. Expired - Lifetime ES2094955T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4217978A DE4217978A1 (de) 1992-05-30 1992-05-30 Verfahren zur Herstellung von ALPHA-Halbhydrat aus Calciumsulfat-Dihydrat in einem Reaktor

Publications (1)

Publication Number Publication Date
ES2094955T3 true ES2094955T3 (es) 1997-02-01

Family

ID=6460116

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93105810T Expired - Lifetime ES2094955T3 (es) 1992-05-30 1993-04-08 Procedimiento para preparar en un reactor semihidrato alpha, partiendo de dihidrato de sulfato de calcio.

Country Status (6)

Country Link
EP (1) EP0572781B1 (es)
AT (1) ATE142609T1 (es)
DE (2) DE4217978A1 (es)
DK (1) DK0572781T3 (es)
ES (1) ES2094955T3 (es)
GR (1) GR3021989T3 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4409219C2 (de) * 1994-03-18 1997-03-27 Salzgitter Anlagenbau Verfahren zur kontinuierlichen Herstellung von alpha-Calciumsulfat-Halbhydrat aus Calciumsulfat-Dihydrat
DE102007024188B3 (de) * 2007-05-24 2008-04-10 Grenzebach Bsh Gmbh Verfahren zur Herstellung von Alpha-Calciumsulfat-Halbhydrat aus Calciumsulfat-Dihydrat und zugehörige Vorrichtung
EP2163532A1 (de) * 2008-09-11 2010-03-17 Claudius Peters Technologies GmbH Verfahren und Anlage zur Herstellung von Hartgips
GB2497574B (en) * 2011-12-15 2019-10-02 Saint Gobain Placo Sas A method of forming a gypsum based product

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1238374B (de) * 1965-04-24 1967-04-06 Giulini Ges Mit Beschraenkter Verfahren zur Herstellung von alpha-Calciumsulfat-Halbhydrat
GB1262083A (en) * 1968-05-28 1972-02-02 Bpb Industries Ltd alpha-CALCIUM SULPHATE HEMIHYDRATE
DE3631883A1 (de) * 1986-09-19 1988-03-31 Pfeiffer Ag Geb Verfahren zum herstellen von alpha-gips
DE3711367A1 (de) * 1987-04-04 1988-10-13 Rwk Rhein Westfael Kalkwerke Verfahren zur herstellung von calciumsulfat-halbhydrat
DE3844938C2 (de) * 1987-05-22 1996-09-19 Pro Mineral Ges Verfahren zur Erzeugung von Calciumsulfat-Alphahalbhydrat aus feinteiligem Calciumsulfat und dessen Verwendung
DE3738301A1 (de) * 1987-11-11 1989-05-24 Peters Ag Claudius Verfahren und vorrichtung zum brennen von gips

Also Published As

Publication number Publication date
DE4217978A1 (de) 1993-12-02
EP0572781A1 (de) 1993-12-08
DK0572781T3 (es) 1997-03-10
GR3021989T3 (en) 1997-03-31
ATE142609T1 (de) 1996-09-15
DE59303717D1 (de) 1996-10-17
EP0572781B1 (de) 1996-09-11

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