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WO2007080286A3 - Particules de sulfate de fer enrobees et leur utilisation dans la preparation de ciments - Google Patents

Particules de sulfate de fer enrobees et leur utilisation dans la preparation de ciments Download PDF

Info

Publication number
WO2007080286A3
WO2007080286A3 PCT/FR2006/002759 FR2006002759W WO2007080286A3 WO 2007080286 A3 WO2007080286 A3 WO 2007080286A3 FR 2006002759 W FR2006002759 W FR 2006002759W WO 2007080286 A3 WO2007080286 A3 WO 2007080286A3
Authority
WO
WIPO (PCT)
Prior art keywords
cements
preparation
coated iron
iron sulphate
sulphate particles
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.)
Ceased
Application number
PCT/FR2006/002759
Other languages
English (en)
Other versions
WO2007080286A2 (fr
Inventor
Vincent Morin
Helene Debegnac
Marc Biosa
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.)
Lafarge SA
Original Assignee
Lafarge 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 Lafarge SA filed Critical Lafarge SA
Publication of WO2007080286A2 publication Critical patent/WO2007080286A2/fr
Publication of WO2007080286A3 publication Critical patent/WO2007080286A3/fr
Anticipated expiration legal-status Critical
Ceased 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
    • C04B28/02—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 hydraulic cements other than calcium sulfates
    • 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
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/10—Coating or impregnating
    • C04B20/1018—Coating or impregnating with organic materials
    • C04B20/1029—Macromolecular compounds
    • C04B20/1048—Polysaccharides, e.g. cellulose, or derivatives thereof
    • 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
    • C09C1/22—Compounds of iron
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/10—Compositions or ingredients thereof characterised by the absence or the very low content of a specific material
    • C04B2111/1075—Chromium-free or very low chromium-content materials
    • C04B2111/1081—Chromium VI, e.g. for avoiding chromium eczema

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Glanulating (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

L'invention concerne un ciment comprenant des particules enrobées, lesdites particules enrobées comprenant: (a) un cœur comprenant du sulfate de fer et / ou du sulfate d'étain et / ou du sulfate de manganèse; et (b) une enveloppe comprenant de l'acide alginique ou l'un de ses dérivés.
PCT/FR2006/002759 2005-12-20 2006-12-15 Particules de sulfate de fer enrobees et leur utilisation dans la preparation de ciments Ceased WO2007080286A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0512932A FR2894956A1 (fr) 2005-12-20 2005-12-20 Particules de sulfate de fer enrobees et leur utilisation dans la preparation de ciments
FR0512932 2005-12-20

Publications (2)

Publication Number Publication Date
WO2007080286A2 WO2007080286A2 (fr) 2007-07-19
WO2007080286A3 true WO2007080286A3 (fr) 2007-12-06

Family

ID=36395776

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2006/002759 Ceased WO2007080286A2 (fr) 2005-12-20 2006-12-15 Particules de sulfate de fer enrobees et leur utilisation dans la preparation de ciments

Country Status (2)

Country Link
FR (1) FR2894956A1 (fr)
WO (1) WO2007080286A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1992595A1 (fr) 2007-05-10 2008-11-19 Lafarge Procédé pour la réduction de la quantité de Cr (VI) dans une composition cimentaire, composition cimentaire comprenant des particules de sulfate métallique enrobées
FR2917082A1 (fr) * 2007-06-08 2008-12-12 Lafarge Sa "additif pour composition a base ciment"
FR2969144B1 (fr) * 2010-12-15 2013-01-18 Chryso Adjuvant a base de fer pour reduire le chrome vi
ITMI20120764A1 (it) 2012-05-07 2013-11-08 Mapei Spa Additivo per cemento portland costituito da un riducente incapsulato in una matrice polimerica
GB2502345B (en) * 2012-05-25 2017-03-15 Nexeon Ltd Composite material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4572739A (en) * 1980-12-17 1986-02-25 Rasmussen Poul L Method for reducing chromate dermatitis
DE29613095U1 (de) * 1996-07-29 1996-10-02 Heidelberger Zement Ag, 69120 Heidelberg Hydrophobiertes Ferrosulfat und dessen Verwendung
EP1520843A1 (fr) * 2003-09-18 2005-04-06 Alexander Kehrmann Liant hydraulique
US20050109243A1 (en) * 2003-11-21 2005-05-26 Jardine Leslie A. Sulfate dispersion chromate reducer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4572739A (en) * 1980-12-17 1986-02-25 Rasmussen Poul L Method for reducing chromate dermatitis
DE29613095U1 (de) * 1996-07-29 1996-10-02 Heidelberger Zement Ag, 69120 Heidelberg Hydrophobiertes Ferrosulfat und dessen Verwendung
EP1520843A1 (fr) * 2003-09-18 2005-04-06 Alexander Kehrmann Liant hydraulique
US20050109243A1 (en) * 2003-11-21 2005-05-26 Jardine Leslie A. Sulfate dispersion chromate reducer

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Die Bedeutung des Chromates in Zementen und zementhaltigen Zubereitungen", VEREIN DEUTSCHER ZEMENTWERKE E.V. FORSCHUNGSINSTITUT DER ZEMENTINDUSTRIE, 5 January 1999 (1999-01-05), XP002400742, Retrieved from the Internet <URL:http://www.wbcsd.org/web/projects/cement/tf3/VDZ-Sachstandsbericht-Chromat.pdf#search=%22bedeutung%20%20chromates%20zement%20vdz%22> [retrieved on 20060920] *
BAETZNER S: "WAYS OF ANALYZING IRON(II) SULPHATE HYDRATE IN RESPECT OF ITS CHROMATE-REDUCING ACTION IN CEMENT", ZKG INTERNATIONAL, BAUVERLAG BV., TERSLOH, DE, vol. 55, no. 7, 2002, pages 80 - 86,88, XP001116336, ISSN: 0949-0205 *

Also Published As

Publication number Publication date
FR2894956A1 (fr) 2007-06-22
WO2007080286A2 (fr) 2007-07-19

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