DK2786070T3 - Fremgangsmåde til behandling af aske, især flyveaske - Google Patents

Fremgangsmåde til behandling af aske, især flyveaske Download PDF

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Publication number
DK2786070T3
DK2786070T3 DK12853243.9T DK12853243T DK2786070T3 DK 2786070 T3 DK2786070 T3 DK 2786070T3 DK 12853243 T DK12853243 T DK 12853243T DK 2786070 T3 DK2786070 T3 DK 2786070T3
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Denmark
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solution
extraction
ash
process according
precipitation
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DK12853243.9T
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Inventor
Ari Väisänen
Jussi Valkonen
Siiri Perämäki
Ville Soikkeli
Risto Ryymin
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Jyvaeskylaen Energia Oy
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    • 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
    • C22B59/00—Obtaining rare earth metals
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G7/00—Compounds of gold
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F17/00—Compounds of rare earth metals
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F17/00—Compounds of rare earth metals
    • C01F17/10—Preparation or treatment, e.g. separation or purification
    • C01F17/17—Preparation or treatment, e.g. separation or purification involving a liquid-liquid extraction
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F17/00—Compounds of rare earth metals
    • C01F17/20—Compounds containing only rare earth metals as the metal element
    • C01F17/206—Compounds containing only rare earth metals as the metal element oxide or hydroxide being the only anion
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G5/00—Compounds of silver
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G55/00—Compounds of ruthenium, rhodium, palladium, osmium, iridium, or platinum
    • 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
    • C22B11/00—Obtaining noble metals
    • C22B11/04—Obtaining noble metals by wet processes
    • C22B11/042—Recovery of noble metals from waste materials
    • C22B11/044—Recovery of noble metals from waste materials from pyrometallurgical residues, e.g. from ashes, dross, flue dust, mud, skim, slag, sludge
    • 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
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • C22B3/065—Nitric acids or salts thereof
    • 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
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
    • 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
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/16—Extraction of metal compounds from ores or concentrates by wet processes by leaching in organic solutions
    • C22B3/1608—Leaching with acyclic or carbocyclic agents
    • C22B3/1616—Leaching with acyclic or carbocyclic agents of a single type
    • C22B3/165—Leaching with acyclic or carbocyclic agents of a single type with organic acids
    • 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
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
    • 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
    • C22B7/02—Working-up flue dust
    • 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
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • 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
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Processing Of Solid Wastes (AREA)

Claims (13)

  1. FREMGANGSMÅDE TIL BEHANDLING AF ASKE, ISÆR FLYVEASKE Patentkrav
    1. Fremgangsmåde til behandling af aske, især flyveaske, i hvilken fremgangsmåde flere grundstoffer separeres fra asken, således at både ædelmetaller og sjældne jordarter separeres, kendetegnet ved, at grundstofferne i fremgangsmåden separeres i to ekstraktionsprocesser, hvoraf ædelmetaller separeres i den første ekstraktionsproces (10), og hvoraf sjældne jordarter separeres i den anden ekstraktionsproces (11), og de opløsninger, der opnås i ekstraktionsprocesserne (10, 11) udfældes i to trin, hvoraf ædelmetaller udfældes i det første trin (13), og sjældne jordarter udfældes i det andet trin (16), og ekstraktionsprocesserne (10, 11) og trinnene (13,16) er koblet til hinanden og indrettet, så de forløber sømløst.
  2. 2. Fremgangsmåde ifølge krav 1, kendetegnet ved, at ædelmetaller i den første ekstraktionsproces (10) opløses ved anvendelse af en vandopløsning (12) med et indhold af oxalat.
  3. 3. Fremgangsmåde ifølge krav 1, kendetegnet ved, at sjældne jordarter i den anden ekstraktionsproces (11) opløses ud af den uopløste aske (14) i den første ekstraktionsproces (10) ved hjælp af en opløsning (15), der er en blanding af svovlsyre og salpetersyre.
  4. 4. Fremgangsmåde ifølge krav 2, kendetegnet ved, at oxalat-ekstraktionsopløsningen (21) opnået fra den første ekstraktionsproces (10) behandles i mindst to stadier, på en sådan måde, at en første udfældningsopløsning (22) indeholdende sulfid og ammoniumchlorid allerførst tilsættes til oxalat-ekstraktionsopløsningen (21) for at separere iridium og kobber, idet pH i den tilbageværende opløsning (26) hæves for at udfælde resten af ædelmetallerne i det andet udfældningsstadium (27).
  5. 5. Fremgangsmåde ifølge krav 4, kendetegnet ved, at pH i oxalat-ekstraktionsopløsningen (21) i det første stadium (24) af udfældningsprocessen indrettes, så den er 1,5±0,3, og pH i opløsningen (26) i det andet stadium (27) indrettes, så den er 8,5±0,3.
  6. 6. Fremgangsmåde ifølge krav 1, kendetegnet ved, at der tilsættes en oxalsyreopløsning til ekstraktionsopløsningen (30), der er opnået fra den anden ekstraktionsproces (11), for at separere sjældne jordarter som et tredje udfældningsstadium (32).
  7. 7. Fremgangsmåde ifølge krav 6, kendetegnet ved, at pH i ekstraktionsopløsningen (30) i det tredje udfældningsstadium (32) indrettes, så den er 1,5±0,3.
  8. 8. Fremgangsmåde ifølge krav 6 eller 7, kendetegnet ved, at der tilsættes en oxalsyreopløsning (31) til det tredje udfældningsstadium (32).
  9. 9. Fremgangsmåde ifølge et hvilket som helst af kravene 1 - 8, kendetegnet ved, at den aske, der ikke opløses i ekstraktionsprocesserne (10, 11) vaskes med vand i vaskestadier (19, 20) før yderligere behandling.
  10. 10. Fremgangsmåde ifølge krav 9, kendetegnet ved, at den vaskeopløsning, der dannes ved vaskningen, tilbageføres til ekstraktionsprocesserne (10, 11) efter vaskestadierne (19, 20).
  11. 11. Fremgangsmåde ifølge et hvilket som helst af kravene 1-10, kendetegnet ved, at ekstraktionsprocesserne (10, 11) og/eller det første, andet og/eller tredje udfældningsstadium (24, 27, 32) accelereres ved justering af temperaturen, justering af trykket, rystning af opløsningen, mekanisk behandling af opløsningen og/eller påvirkning af opløsningen med ultralyd.
  12. 12. Fremgangsmåde ifølge krav 5, kendetegnet ved, at pH i det andet stadium (27) af udfældningsprocessen justeres ved hjælp af ammoniak og efter, at det nitrogen, der er tilbage efter det andet stadium (27) er indsamlet som gødning.
  13. 13. Fremgangsmåde ifølge krav 6, kendetegnet ved, at den oxalsyre, der anvendes i stadiet med udfældning af sjældne jordarter (32), recirkuleres til den første ekstraktionsproces (10).
DK12853243.9T 2011-12-02 2012-11-30 Fremgangsmåde til behandling af aske, især flyveaske DK2786070T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20116228A FI123432B (fi) 2011-12-02 2011-12-02 Menetelmä tuhkan, erityisesti lentotuhkan käsittelemiseksi
PCT/FI2012/051196 WO2013079804A1 (en) 2011-12-02 2012-11-30 Method for processing ash, particularly fly ash

Publications (1)

Publication Number Publication Date
DK2786070T3 true DK2786070T3 (da) 2018-07-16

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DK12853243.9T DK2786070T3 (da) 2011-12-02 2012-11-30 Fremgangsmåde til behandling af aske, især flyveaske

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Country Link
US (1) US9783870B2 (da)
EP (1) EP2786070B1 (da)
JP (1) JP6159731B2 (da)
KR (1) KR101962501B1 (da)
CN (1) CN104011463B (da)
AU (1) AU2012343701B2 (da)
BR (1) BR112014013340B1 (da)
CA (1) CA2855899C (da)
CY (1) CY1120385T1 (da)
DK (1) DK2786070T3 (da)
ES (1) ES2673490T3 (da)
FI (1) FI123432B (da)
HR (1) HRP20180946T1 (da)
HU (1) HUE037833T2 (da)
LT (1) LT2786070T (da)
PL (1) PL2786070T3 (da)
PT (1) PT2786070T (da)
RU (1) RU2630153C2 (da)
SI (1) SI2786070T1 (da)
WO (1) WO2013079804A1 (da)
ZA (1) ZA201404017B (da)

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JP6159731B2 (ja) 2017-07-05
BR112014013340A2 (pt) 2017-06-13
CN104011463A (zh) 2014-08-27
KR20140099303A (ko) 2014-08-11
CA2855899A1 (en) 2013-06-06
BR112014013340B1 (pt) 2021-03-16
US9783870B2 (en) 2017-10-10
FI20116228A (fi) 2013-04-30
SI2786070T1 (en) 2018-08-31
ES2673490T3 (es) 2018-06-22
JP2015500399A (ja) 2015-01-05
CA2855899C (en) 2020-01-14
PT2786070T (pt) 2018-07-27
US20150211094A1 (en) 2015-07-30
ZA201404017B (en) 2015-08-26
CN104011463B (zh) 2017-03-08
EP2786070A1 (en) 2014-10-08
AU2012343701A1 (en) 2014-06-19
RU2014126863A (ru) 2016-01-27
FI123432B (fi) 2013-04-30
EP2786070A4 (en) 2015-08-05
PL2786070T3 (pl) 2018-08-31
AU2012343701B2 (en) 2017-08-10
WO2013079804A1 (en) 2013-06-06
HUE037833T2 (hu) 2018-09-28
CY1120385T1 (el) 2019-07-10
LT2786070T (lt) 2018-07-10
EP2786070B1 (en) 2018-04-18
HRP20180946T1 (hr) 2018-09-07
RU2630153C2 (ru) 2017-09-05
KR101962501B1 (ko) 2019-03-26

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