PL2146939T3 - Sposób zmniejszania ilości cr(vi) w kompozycji zawierającej cement oraz kompozycja zawierająca cement i powlekane cząstki siarczanu metalu - Google Patents

Sposób zmniejszania ilości cr(vi) w kompozycji zawierającej cement oraz kompozycja zawierająca cement i powlekane cząstki siarczanu metalu

Info

Publication number
PL2146939T3
PL2146939T3 PL08807084T PL08807084T PL2146939T3 PL 2146939 T3 PL2146939 T3 PL 2146939T3 PL 08807084 T PL08807084 T PL 08807084T PL 08807084 T PL08807084 T PL 08807084T PL 2146939 T3 PL2146939 T3 PL 2146939T3
Authority
PL
Poland
Prior art keywords
cement
composition
reduce
amount
coated metallic
Prior art date
Application number
PL08807084T
Other languages
English (en)
Inventor
Hélène Debegnac
Christelle Sing
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 PL2146939T3 publication Critical patent/PL2146939T3/pl

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
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators or shrinkage compensating agents
    • C04B22/08—Acids or salts thereof
    • C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
    • C04B22/142—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
    • 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
    • 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)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemically Coating (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Paints Or Removers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
PL08807084T 2007-05-10 2008-05-06 Sposób zmniejszania ilości cr(vi) w kompozycji zawierającej cement oraz kompozycja zawierająca cement i powlekane cząstki siarczanu metalu PL2146939T3 (pl)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP07368007A EP1992595A1 (en) 2007-05-10 2007-05-10 Process to reduce the amount of Cr (VI) in a cement-containing composition and a composition comprising cement and coated metallic sulphate particles
EP08807084.2A EP2146939B1 (en) 2007-05-10 2008-05-06 Process to reduce the amount of cr (vi) in a cement-containing composition and a composition comprising cement and coated metallic sulphate particles
PCT/IB2008/002400 WO2008152521A2 (en) 2007-05-10 2008-05-06 Process to reduce the amount of cr (vi) in a cement-containing composition and a composition comprising cement and coated metallic sulphate particles

Publications (1)

Publication Number Publication Date
PL2146939T3 true PL2146939T3 (pl) 2014-08-29

Family

ID=38537668

Family Applications (1)

Application Number Title Priority Date Filing Date
PL08807084T PL2146939T3 (pl) 2007-05-10 2008-05-06 Sposób zmniejszania ilości cr(vi) w kompozycji zawierającej cement oraz kompozycja zawierająca cement i powlekane cząstki siarczanu metalu

Country Status (8)

Country Link
US (1) US8142564B2 (pl)
EP (2) EP1992595A1 (pl)
CN (1) CN101626994B (pl)
BR (1) BRPI0809013A2 (pl)
CA (1) CA2687164C (pl)
ES (1) ES2468552T3 (pl)
PL (1) PL2146939T3 (pl)
WO (1) WO2008152521A2 (pl)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2363386A1 (de) * 2010-02-23 2011-09-07 Mig Material Innovative Gesellschaft MBH Reduktion von Cr(VI)-Ionen in Zement oder zementhaltigen Produkten
ITMI20120764A1 (it) * 2012-05-07 2013-11-08 Mapei Spa Additivo per cemento portland costituito da un riducente incapsulato in una matrice polimerica
EP2870107B1 (de) * 2012-07-06 2018-01-17 LANXESS Deutschland GmbH Verfahren zur reduktion von sechswertigem chrom in oxidischen feststoffen
NL2011852C2 (en) 2013-11-28 2015-06-01 Univ Delft Tech Biobased membrane.
KR101832676B1 (ko) * 2017-11-10 2018-02-28 조병학 시멘트 첨가물 및 그 제조방법
CN109336458B (zh) * 2018-12-17 2021-08-17 鸡西市恒昌新材料科技有限公司 一种水泥助磨剂
CN112221477A (zh) * 2020-09-28 2021-01-15 湖北富邦科技股份有限公司 一种聚丙烯酰胺修饰Fe-Mn-S/海藻酸钠复合微球及其制备方法
ES2926356B2 (es) * 2021-04-14 2023-02-27 Aditivos Del Cemento S L MEZCLA REDUCTORA DE Cr(VI) CONTENIDO EN CEMENTO A Cr(III)
CN113307528A (zh) * 2021-06-02 2021-08-27 龙蟒佰利联集团股份有限公司 一种水泥降铬剂及制备、使用方法
CN114644477B (zh) * 2022-04-28 2023-05-30 四川省绵竹澳东水泥有限责任公司 一种水泥六价铬还原剂及其制备方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB370878A (en) * 1929-10-10 1932-04-14 Joseph Crabbe Process for securing impermeability to more or less pulverulent materials
US3803292A (en) * 1971-01-28 1974-04-09 Mallinckrodt Chemical Works Iron enrichment of flour
IS1443B6 (is) * 1980-12-17 1990-12-14 Aalborg Portland A/S thurr sementsblanda
JPH07232954A (ja) * 1994-02-18 1995-09-05 Tomoji Tanaka 耐塩コンクリート及び脱塩砂
DE29613095U1 (de) * 1996-07-29 1996-10-02 Heidelberger Zement Ag, 69120 Heidelberg Hydrophobiertes Ferrosulfat und dessen Verwendung
CA2230801A1 (en) * 1998-02-27 1999-08-27 Stanley H. Zlotkin Composition comprising micro-encapsulated iron
CN1084781C (zh) * 1999-06-03 2002-05-15 中国科学院山西煤炭化学研究所 风化煤树脂类盐水型降滤失剂及其制备方法
GB2375340B (en) * 2001-05-10 2003-09-10 Croda Int Plc Gelatin substitute
KR101135941B1 (ko) * 2003-11-21 2012-04-24 더블유.알. 그레이스 앤드 캄파니-콘. 황산염이 분산된 크롬산염 환원제
BR0305871B1 (pt) 2003-11-24 2014-10-21 Inst Pesquisas Tech Produto à base de sulfato ferroso para fortificação de alimentos desidratados e método de preparação
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
CN101626994A (zh) 2010-01-13
EP2146939A2 (en) 2010-01-27
ES2468552T3 (es) 2014-06-16
EP1992595A1 (en) 2008-11-19
CN101626994B (zh) 2012-07-25
CA2687164A1 (en) 2008-12-18
WO2008152521A3 (en) 2009-02-26
US20100116173A1 (en) 2010-05-13
US8142564B2 (en) 2012-03-27
BRPI0809013A2 (pt) 2014-09-16
EP2146939B1 (en) 2014-03-05
CA2687164C (en) 2015-11-24
WO2008152521A2 (en) 2008-12-18

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