NZ511779A - Method for the non-leachable immobilisation of molybdenum compounds in a slag - Google Patents

Method for the non-leachable immobilisation of molybdenum compounds in a slag

Info

Publication number
NZ511779A
NZ511779A NZ51177999A NZ51177999A NZ511779A NZ 511779 A NZ511779 A NZ 511779A NZ 51177999 A NZ51177999 A NZ 51177999A NZ 51177999 A NZ51177999 A NZ 51177999A NZ 511779 A NZ511779 A NZ 511779A
Authority
NZ
New Zealand
Prior art keywords
slag
molybdenum compounds
immobilisation
leachable
molybdenum
Prior art date
Application number
NZ51177999A
Inventor
Jan Pieter Lotens
Der Giesen Abraham Barend Van
Original Assignee
Droan B
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 Droan B filed Critical Droan B
Publication of NZ511779A publication Critical patent/NZ511779A/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
    • A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
    • A62D3/33—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by chemical fixing the harmful substance, e.g. by chelation or complexation
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/04—Working-up slag
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
    • A62D2101/08—Toxic combustion residues, e.g. toxic substances contained in fly ash from waste incineration
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
    • A62D2101/40—Inorganic substances
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
    • A62D2101/40—Inorganic substances
    • A62D2101/43—Inorganic substances containing heavy metals, in the bonded or free state
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Geology (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

A method for the non-leachable immobilisation of molybdenum compounds in a slag by melting and subsequently cooling waste streams containing iron and molybdenum compounds, where: the treatment temperature is above the liquidus temperature of the slag; the oxygen pressure is adjusted to a value of between 10-6 and 10-12 bar; the thermodynamic activity of Fe (I) in the slag is e"0. 5; the Fe (III)/Fe (II) ratio in the slag is between 0.25 and 2; and after tapping off, the resultant slag is cooled such that a solid solution of MoO2 in a spinel structure which exhibits a very low leaching value for molybdenum is obtained. Such a slag that is obtained by the above method can be used as material in the construction industry.
NZ51177999A 1998-11-18 1999-11-16 Method for the non-leachable immobilisation of molybdenum compounds in a slag NZ511779A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1010590A NL1010590C2 (en) 1998-11-18 1998-11-18 Method for the non-leachable immobilization of molybdenum compounds in a slag.
PCT/NL1999/000702 WO2000029071A1 (en) 1998-11-18 1999-11-16 Method for the non-leachable immobilisation of molybdenum compounds in a slag

Publications (1)

Publication Number Publication Date
NZ511779A true NZ511779A (en) 2003-01-31

Family

ID=19768165

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ51177999A NZ511779A (en) 1998-11-18 1999-11-16 Method for the non-leachable immobilisation of molybdenum compounds in a slag

Country Status (8)

Country Link
EP (1) EP1131137A1 (en)
JP (1) JP2002529358A (en)
AU (1) AU758925B2 (en)
CA (1) CA2351391A1 (en)
NL (1) NL1010590C2 (en)
NO (1) NO20012405L (en)
NZ (1) NZ511779A (en)
WO (1) WO2000029071A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007024218A1 (en) * 2005-08-23 2007-03-01 Studsvik, Inc. Mineralization of alkali metals, sulfur and halogens
KR101481977B1 (en) * 2013-07-04 2015-01-15 연세대학교 산학협력단 METHOD OF RECOVERING Fe IN STEEL-MAKING SLAG

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS546967B1 (en) * 1970-10-07 1979-04-03
JPS6019092A (en) * 1983-07-13 1985-01-31 Nec Corp Treatment of waste liquid
FR2712214B1 (en) * 1993-11-10 1996-01-19 Emc Services Waste crystallization process.
WO1996005002A1 (en) * 1994-08-15 1996-02-22 Shinmaywa Industries, Ltd. Heavy metal-containing waste treating process and apparatus

Also Published As

Publication number Publication date
JP2002529358A (en) 2002-09-10
CA2351391A1 (en) 2000-05-25
NO20012405L (en) 2001-07-13
AU758925B2 (en) 2003-04-03
AU1297400A (en) 2000-06-05
WO2000029071A1 (en) 2000-05-25
NO20012405D0 (en) 2001-05-16
EP1131137A1 (en) 2001-09-12
NL1010590C2 (en) 2000-05-22

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Legal Events

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