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 slagInfo
- 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
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.
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)
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)
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. |
EP0724918A4 (en) * | 1994-08-15 | 1997-06-25 | Shinmaywa Ind Ltd | Heavy metal-containing waste treating process and apparatus |
-
1998
- 1998-11-18 NL NL1010590A patent/NL1010590C2/en not_active IP Right Cessation
-
1999
- 1999-11-16 AU AU12974/00A patent/AU758925B2/en not_active Ceased
- 1999-11-16 CA CA 2351391 patent/CA2351391A1/en not_active Abandoned
- 1999-11-16 WO PCT/NL1999/000702 patent/WO2000029071A1/en active IP Right Grant
- 1999-11-16 EP EP19990956350 patent/EP1131137A1/en not_active Withdrawn
- 1999-11-16 NZ NZ51177999A patent/NZ511779A/en unknown
- 1999-11-16 JP JP2000582114A patent/JP2002529358A/en active Pending
-
2001
- 2001-05-16 NO NO20012405A patent/NO20012405L/en unknown
Also Published As
Publication number | Publication date |
---|---|
AU758925B2 (en) | 2003-04-03 |
AU1297400A (en) | 2000-06-05 |
NO20012405L (en) | 2001-07-13 |
WO2000029071A1 (en) | 2000-05-25 |
NL1010590C2 (en) | 2000-05-22 |
JP2002529358A (en) | 2002-09-10 |
CA2351391A1 (en) | 2000-05-25 |
EP1131137A1 (en) | 2001-09-12 |
NO20012405D0 (en) | 2001-05-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PSEA | Patent sealed |