FI951922A - Menetelmä ferrosulfaatin käsittelemiseksi - Google Patents

Menetelmä ferrosulfaatin käsittelemiseksi Download PDF

Info

Publication number
FI951922A
FI951922A FI951922A FI951922A FI951922A FI 951922 A FI951922 A FI 951922A FI 951922 A FI951922 A FI 951922A FI 951922 A FI951922 A FI 951922A FI 951922 A FI951922 A FI 951922A
Authority
FI
Finland
Prior art keywords
ferrous sulphate
sulphuric acid
treating ferrous
treating
cement
Prior art date
Application number
FI951922A
Other languages
English (en)
Swedish (sv)
Other versions
FI951922A0 (fi
FI100966B (fi
Inventor
Bo-Erik Eriksson
Harri Mattila
Original Assignee
Finnsementti Oy
Kemira Pigments Oy
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 Finnsementti Oy, Kemira Pigments Oy filed Critical Finnsementti Oy
Priority to FI951922A priority Critical patent/FI100966B/fi
Publication of FI951922A0 publication Critical patent/FI951922A0/fi
Priority to PCT/FI1996/000198 priority patent/WO1996033133A1/en
Priority to EP96910049A priority patent/EP0821656A1/en
Publication of FI951922A publication Critical patent/FI951922A/fi
Application granted granted Critical
Publication of FI100966B publication Critical patent/FI100966B/fi

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, 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
    • C04B22/149—Iron-sulfates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/14—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
    • C04B2111/00034—Physico-chemical characteristics of the mixtures
    • C04B2111/00112—Mixtures characterised by specific pH values
    • 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)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
FI951922A 1995-04-21 1995-04-21 Menetelmä ferrosulfaatin käsittelemiseksi FI100966B (fi)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI951922A FI100966B (fi) 1995-04-21 1995-04-21 Menetelmä ferrosulfaatin käsittelemiseksi
PCT/FI1996/000198 WO1996033133A1 (en) 1995-04-21 1996-04-12 Method for treating ferrous sulphate
EP96910049A EP0821656A1 (en) 1995-04-21 1996-04-12 Method for treating ferrous sulphate

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI951922 1995-04-21
FI951922A FI100966B (fi) 1995-04-21 1995-04-21 Menetelmä ferrosulfaatin käsittelemiseksi

Publications (3)

Publication Number Publication Date
FI951922A0 FI951922A0 (fi) 1995-04-21
FI951922A true FI951922A (fi) 1996-10-22
FI100966B FI100966B (fi) 1998-03-31

Family

ID=8543287

Family Applications (1)

Application Number Title Priority Date Filing Date
FI951922A FI100966B (fi) 1995-04-21 1995-04-21 Menetelmä ferrosulfaatin käsittelemiseksi

Country Status (3)

Country Link
EP (1) EP0821656A1 (fi)
FI (1) FI100966B (fi)
WO (1) WO1996033133A1 (fi)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2761679B1 (fr) * 1997-04-08 1999-06-18 Carrieres Du Boulonnais Procede pour l'elimination d'acides sulfureux residuaires de traitement industriel et pour l'obtention de produits stables
DE10000709A1 (de) * 2000-01-10 2001-07-19 Mg Technologies Ag Verfahren zur Behandlung von Chrom(VI)-haltigen Rückständen
DE10157129C2 (de) * 2001-11-21 2003-10-30 Ferro Duo Gmbh Verfahren zur Herstellung eines hydraulischen Bindemittels
ATE294148T1 (de) * 2003-01-25 2005-05-15 Alexander Kehrmann Chromatreduziertes hydraulisches bindemittel
DE10332530A1 (de) * 2003-07-17 2005-02-10 Kerr-Mcgee Pigments Gmbh Verfahren zur Reduktion des löslichen Chromatgehaltes in Zement sowie eine Zubereitung aus Zement und wasserlöslichen Metallsulfaten
DE50303867D1 (de) † 2003-12-12 2006-07-27 Kehrmann Alexander Hydraulisches Bindemittel
EP1580175A1 (de) * 2004-03-23 2005-09-28 Alexander Kehrmann Zuschlagsstoff für Beton
EP2055684A1 (en) * 2006-06-27 2009-05-06 Aditivos Del Cemento, S.L. Method of obtaining an additive for cement and additive thus achieved
EP1892219B1 (en) * 2006-06-28 2008-03-12 Kemira Pigments Oy Method of treating a precipitate comprising iron(II)sulphate monohydrate, a plant, granular material and its uses
EP2371769A1 (en) 2006-06-28 2011-10-05 Sachtleben Pigments Oy Method of treating a precipitate comprising iron(ii)sulphate monohydrate, a plant, granular material and its uses
US7717999B1 (en) 2008-12-24 2010-05-18 The National Titanium Dioxide, Co., Ltd. (Cristal) Titanium production waste byproduct as partial cement replacement
CN101955233B (zh) * 2010-08-30 2012-07-11 攀枝花圣地元科技有限责任公司 生产一水硫酸亚铁的方法
CN113060948A (zh) * 2021-04-01 2021-07-02 重庆康尼睿能商贸有限公司 一种水泥生料及水泥的制备方法
ES2926356B2 (es) * 2021-04-14 2023-02-27 Aditivos Del Cemento S L MEZCLA REDUCTORA DE Cr(VI) CONTENIDO EN CEMENTO A Cr(III)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1581539A (en) * 1976-10-07 1980-12-17 Laporte Industries Ltd Making plaster from ferrous sulphate
AU2260183A (en) * 1982-11-17 1984-06-04 Aalborg Portland-Cement-Fabrik Aktieselskabet A method of improving the properties of a powder

Also Published As

Publication number Publication date
FI951922A0 (fi) 1995-04-21
FI100966B (fi) 1998-03-31
WO1996033133A1 (en) 1996-10-24
EP0821656A1 (en) 1998-02-04

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Legal Events

Date Code Title Description
GB Transfer or assigment of application

Owner name: FINNSEMENTTI OY

MA Patent expired