PT2651848T - Processo de redução do crómio vi utilizando um adjuvante baseado em ferro - Google Patents

Processo de redução do crómio vi utilizando um adjuvante baseado em ferro

Info

Publication number
PT2651848T
PT2651848T PT117945212T PT11794521T PT2651848T PT 2651848 T PT2651848 T PT 2651848T PT 117945212 T PT117945212 T PT 117945212T PT 11794521 T PT11794521 T PT 11794521T PT 2651848 T PT2651848 T PT 2651848T
Authority
PT
Portugal
Prior art keywords
iron
based adjuvant
reducing chromium
chromium
reducing
Prior art date
Application number
PT117945212T
Other languages
English (en)
Original Assignee
Chryso
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 Chryso filed Critical Chryso
Publication of PT2651848T publication Critical patent/PT2651848T/pt

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
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039—Premixtures of ingredients
    • 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
    • C04B28/021—Ash cements, e.g. fly ash cements ; Cements based on incineration residues, e.g. alkali-activated slags from waste incineration ; Kiln dust cements
    • 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
    • C04B28/04—Portland cements
    • 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
    • C04B28/08—Slag cements
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
PT117945212T 2010-12-15 2011-12-15 Processo de redução do crómio vi utilizando um adjuvante baseado em ferro PT2651848T (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1060554A FR2969144B1 (fr) 2010-12-15 2010-12-15 Adjuvant a base de fer pour reduire le chrome vi

Publications (1)

Publication Number Publication Date
PT2651848T true PT2651848T (pt) 2020-05-04

Family

ID=44148556

Family Applications (1)

Application Number Title Priority Date Filing Date
PT117945212T PT2651848T (pt) 2010-12-15 2011-12-15 Processo de redução do crómio vi utilizando um adjuvante baseado em ferro

Country Status (7)

Country Link
EP (1) EP2651848B1 (pt)
ES (1) ES2776000T3 (pt)
FR (1) FR2969144B1 (pt)
LT (1) LT2651848T (pt)
PL (1) PL2651848T3 (pt)
PT (1) PT2651848T (pt)
WO (1) WO2012080402A1 (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113480219A (zh) * 2021-07-15 2021-10-08 内蒙古宏尔高新材料科技有限公司 用于降低水泥中水溶性铬（ⅵ）的降铬剂及其制备方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10335363B3 (de) * 2003-08-01 2005-04-07 Dr. Paul Lohmann Gmbh Kg Verwendung einer Lösung und Verfahren zur Herstellung eines Mittels zur Reduzierung von Chromanteilen in einer Zementverbindung sowie danach hergestelltes Mittel
US7128782B2 (en) * 2003-11-21 2006-10-31 W.R. Grace & Co.-Conn. Sulfate dispersion chromate reducer
US20070034118A1 (en) 2005-08-12 2007-02-15 Jardine Leslie A Dosage efficient, storage stable compositions for reducing chromium (VI) in cement
FR2894956A1 (fr) * 2005-12-20 2007-06-22 Lafarge Sa Particules de sulfate de fer enrobees et leur utilisation dans la preparation de ciments

Also Published As

Publication number Publication date
WO2012080402A1 (fr) 2012-06-21
EP2651848A1 (fr) 2013-10-23
PL2651848T3 (pl) 2020-10-05
ES2776000T3 (es) 2020-07-28
FR2969144B1 (fr) 2013-01-18
EP2651848B1 (fr) 2020-02-12
FR2969144A1 (fr) 2012-06-22
LT2651848T (lt) 2020-05-11

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