WO2007021617A3 - Dosage efficient, storage stable compositions for reducing chromium (vi) in cement - Google Patents

Dosage efficient, storage stable compositions for reducing chromium (vi) in cement Download PDF

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Publication number
WO2007021617A3
WO2007021617A3 PCT/US2006/030577 US2006030577W WO2007021617A3 WO 2007021617 A3 WO2007021617 A3 WO 2007021617A3 US 2006030577 W US2006030577 W US 2006030577W WO 2007021617 A3 WO2007021617 A3 WO 2007021617A3
Authority
WO
WIPO (PCT)
Prior art keywords
cement
chromium
reducer
storage stable
stable compositions
Prior art date
Application number
PCT/US2006/030577
Other languages
French (fr)
Other versions
WO2007021617B1 (en
WO2007021617A2 (en
Inventor
Leslie A Jardine
Charlotte B Porteneuve
Michael B Macklin
Michael S Sumner
Charles R Cornman
Vijay Gupta
Original Assignee
Grace W R & Co
Leslie A Jardine
Charlotte B Porteneuve
Michael B Macklin
Michael S Sumner
Charles R Cornman
Vijay Gupta
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 Grace W R & Co, Leslie A Jardine, Charlotte B Porteneuve, Michael B Macklin, Michael S Sumner, Charles R Cornman, Vijay Gupta filed Critical Grace W R & Co
Priority to JP2008526094A priority Critical patent/JP2009504554A/en
Priority to AU2006280182A priority patent/AU2006280182A1/en
Publication of WO2007021617A2 publication Critical patent/WO2007021617A2/en
Publication of WO2007021617A3 publication Critical patent/WO2007021617A3/en
Publication of WO2007021617B1 publication Critical patent/WO2007021617B1/en

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
    • C04B7/00—Hydraulic cements
    • C04B7/32—Aluminous 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
    • 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
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/08—Acids or salts thereof
    • 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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/04—Carboxylic acids; Salts, anhydrides or esters thereof
    • C04B24/06—Carboxylic acids; Salts, anhydrides or esters thereof containing hydroxy groups
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/52—Grinding aids; Additives added during grinding
    • 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)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

An association complex formed in a liquid environment from a metal- based chromium (VI) reducer and a non-lignosulfonate-based complexing agent is introduced into cement clinker or hydratable cement particles. In preferred embodiments, the formation of the association complex provides storage stability to the chromium reducer within the cement, such that the level of chromium (VI) after water is added to the cement remains less than 2 ppm for certain duration after mixing with water and without the necessity for further additions of chromium reducer during said duration (e.g., 26-84 or more days after addition). Compositions having the association complex are also described.
PCT/US2006/030577 2005-08-12 2006-08-03 Dosage efficient, storage stable compositions for reducing chromium (vi) in cement WO2007021617A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2008526094A JP2009504554A (en) 2005-08-12 2006-08-03 Composition having good administration efficiency and storage stability for reducing chromium (VI) in cement
AU2006280182A AU2006280182A1 (en) 2005-08-12 2006-08-03 Dosage efficient, storage stable compositions for reducing chromium (VI) in cement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US70790105P 2005-08-12 2005-08-12
US60/707,901 2005-08-12

Publications (3)

Publication Number Publication Date
WO2007021617A2 WO2007021617A2 (en) 2007-02-22
WO2007021617A3 true WO2007021617A3 (en) 2007-04-26
WO2007021617B1 WO2007021617B1 (en) 2007-06-21

Family

ID=37758067

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/030577 WO2007021617A2 (en) 2005-08-12 2006-08-03 Dosage efficient, storage stable compositions for reducing chromium (vi) in cement

Country Status (5)

Country Link
JP (1) JP2009504554A (en)
KR (1) KR20080044246A (en)
CN (1) CN101282917A (en)
AU (1) AU2006280182A1 (en)
WO (1) WO2007021617A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2364281A4 (en) * 2008-11-11 2015-12-23 Afrisam South Africa Pty Ltd ADDITIVES FOR Cr (VI) REDUCTION IN CEMENT, SLAGS, MORTARS, CONCRETE, WASTE WATER AND MINING INDUSTRY WASTE
CN104496243B (en) * 2014-11-06 2017-03-22 中国建筑材料科学研究总院 Hexavalent chromium reducing agent and preparation method thereof, cement and preparation method thereof
CN104496251B (en) * 2014-11-25 2017-03-22 中国建筑材料科学研究总院 Liquid hexavalent chromium reducing agent and preparation method thereof, cement and preparation method thereof
CN105198260A (en) * 2015-10-13 2015-12-30 云南锡业股份有限公司 Special tin-containing additive for removing hexavalent chromium from cement and preparation method of additive
CN105924029A (en) * 2016-04-21 2016-09-07 张伟 Liquid cement additive for reducing content of water-soluble Cr<6+> in cement
KR101832676B1 (en) * 2017-11-10 2018-02-28 조병학 Cement mixture and manufacturing method thereof
KR101891052B1 (en) * 2018-02-20 2018-08-23 조병학 Cement mixture and manufacturing method thereof
CN109503000A (en) * 2018-11-09 2019-03-22 高正春 A kind of environmentally friendly cement and preparation method thereof
CN112374789B (en) * 2020-10-13 2022-05-24 唐山冀东水泥外加剂有限责任公司 Cement hexavalent chromium reducing agent and preparation method thereof
CN113480219A (en) * 2021-07-15 2021-10-08 内蒙古宏尔高新材料科技有限公司 Chromium reducing agent for reducing water-soluble chromium (VI) in cement and preparation method thereof
CN117720300A (en) * 2022-09-09 2024-03-19 Sika技术股份公司 Novel chromium reducing agent for cement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3981965A (en) * 1972-08-17 1976-09-21 Allied Chemical Corporation Suppression of water pollution caused by solid wastes containing chromium compounds
US4260491A (en) * 1978-11-15 1981-04-07 Amchem Products, Inc. Chrome removal waste treatment process
US20050109243A1 (en) * 2003-11-21 2005-05-26 Jardine Leslie A. Sulfate dispersion chromate reducer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3981965A (en) * 1972-08-17 1976-09-21 Allied Chemical Corporation Suppression of water pollution caused by solid wastes containing chromium compounds
US4260491A (en) * 1978-11-15 1981-04-07 Amchem Products, Inc. Chrome removal waste treatment process
US20050109243A1 (en) * 2003-11-21 2005-05-26 Jardine Leslie A. Sulfate dispersion chromate reducer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
OTHMER K.: "Concise Encyclopedia of Chemical Technology", vol. 4TH ED., 1999, JOHN WILEY & SONS, INC., pages: 447 - 449, XP008079984 *

Also Published As

Publication number Publication date
AU2006280182A1 (en) 2007-02-22
KR20080044246A (en) 2008-05-20
JP2009504554A (en) 2009-02-05
CN101282917A (en) 2008-10-08
WO2007021617B1 (en) 2007-06-21
WO2007021617A2 (en) 2007-02-22

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