FI118225B - Förfarande för att effektivera lakningen av sulfidkoncentrat - Google Patents

Förfarande för att effektivera lakningen av sulfidkoncentrat Download PDF

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Publication number
FI118225B
FI118225B FI20060011A FI20060011A FI118225B FI 118225 B FI118225 B FI 118225B FI 20060011 A FI20060011 A FI 20060011A FI 20060011 A FI20060011 A FI 20060011A FI 118225 B FI118225 B FI 118225B
Authority
FI
Finland
Prior art keywords
concentrate
leaching
iron
reactor
oxidation
Prior art date
Application number
FI20060011A
Other languages
English (en)
Finnish (fi)
Other versions
FI20060011A (sv
FI20060011A0 (sv
Inventor
Mikko Ruonala
Ilkka Turunen
Heikki Takala
Marko Lahtinen
Original Assignee
Outokumpu Technology Oyj
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 Outokumpu Technology Oyj filed Critical Outokumpu Technology Oyj
Priority to FI20060011A priority Critical patent/FI118225B/sv
Publication of FI20060011A0 publication Critical patent/FI20060011A0/sv
Priority to PCT/FI2006/000425 priority patent/WO2007077290A1/en
Priority to PE2007000004A priority patent/PE20071049A1/es
Publication of FI20060011A publication Critical patent/FI20060011A/sv
Application granted granted Critical
Publication of FI118225B publication Critical patent/FI118225B/sv

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Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B19/00Obtaining zinc or zinc oxide
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B19/00Obtaining zinc or zinc oxide
    • C22B19/20Obtaining zinc otherwise than by distilling
    • C22B19/22Obtaining zinc otherwise than by distilling with leaching with acids
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B15/00Obtaining copper
    • C22B15/0002Preliminary treatment
    • C22B15/0004Preliminary treatment without modification of the copper constituent
    • C22B15/0008Preliminary treatment without modification of the copper constituent by wet processes
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B19/00Obtaining zinc or zinc oxide
    • C22B19/02Preliminary treatment of ores; Preliminary refining of zinc oxide
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/06Extraction 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
    • C22B3/08Sulfuric acid, other sulfurated acids or salts thereof
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

Landscapes

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

Claims (8)

1. Förfarande genom vilket lakning av ett sulfidiskt zinkkoncentrat effekti- 10 veras vid en hydrometallurgisk framställningsprocess, varvid koncentratet lakas med hjälp av en vattenlösning innehällande trevärt järn och fri svavelsyra, kännetecknat därav, att tvävärt järn som bildats i samband med oxideringen av koncentratets svavel och upplösningen av värdemetallen oxideras tili trevärt järn i en ätminstone delvis separat, 15 rörformig oxidationsreaktor försedd med statiska omrörare och den oxiderade lösningen innehällande ferrijärn äterförs tili koncentratets lakningsfas i lakningsreaktorn.
2. Förfarande enligt patentkrav 1, kännetecknat därav, att oxidations- ·:··1 20 reaktorn fungerar under atmosfäriskt tryck. • · · • · • · • · 1
3. Förfarande enligt patentkrav 1, kännetecknat därav, att oxidations-reaktorn fungerar under ett lägt övertryck. « · · • « • · • · « 25
4. Förfarande enligt patentkrav 1 eller 3, kännetecknat därav, att ·· : ’·· oxidationsreaktorns övertryck är maximalt i klassen 0,5 MPa. t 1 1 • · • · * · · · *
5. Förfarande enligt nägot av patentkraven 1- 4, kännetecknat därav, att ϊ.,.ϊ koncentratets lakningsfas utförs vid atmosfäriskt tryck och temperatur. . 30 • · · ··· · • · · • ♦ ♦ • · 118225
6. Förfarande enligt nägot av patentkraven 1- 5, kännetecknat därav, att temperaturen i oxidationsfasen som äger rum i oxidationsreaktorn justeras sä att den ligger under svavlets smälttemperatur. 5
7. Förfarande enligt nägot av patentkraven 1-6, kännetecknat därav, att en del av syret som används vid oxidationen av tvavärt järn tillförs i lak-ningsfasen.
8. Förfarande enligt nägot av patentkraven 1-7, kännetecknat därav, att 10 koncentratets lakningssteg omfattar flera reaktorer, varvid den i oxida tionsreaktorn oxiderade lösningen äterförs tili stegens första reaktor. « M··· Φ · • * · · · • · • · · • · • · • · 1 • · Φ Φ Φ Φ Φ • il # * 1 · Φ φ • φ φ Φ I I φ Φ • Φ φ φ Φ ·· • Φ φ ΦΦ • • il Φ · φ Φ φ # Φ • ΦΦ · Φ · · Φ · Φ · φ Φ · Φ · Φ 1 ♦·· • φ Φ · φ φ Φ φ φ Φ Φ φ · Φ φ Φ · • Φ
FI20060011A 2006-01-04 2006-01-04 Förfarande för att effektivera lakningen av sulfidkoncentrat FI118225B (sv)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI20060011A FI118225B (sv) 2006-01-04 2006-01-04 Förfarande för att effektivera lakningen av sulfidkoncentrat
PCT/FI2006/000425 WO2007077290A1 (en) 2006-01-04 2006-12-29 Method for improving sulphidic concentrate leaching
PE2007000004A PE20071049A1 (es) 2006-01-04 2007-01-03 Metodo para mejorar la lixiviacion de un concentrado que contiene sulfuros de un metal valioso

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20060011 2006-01-04
FI20060011A FI118225B (sv) 2006-01-04 2006-01-04 Förfarande för att effektivera lakningen av sulfidkoncentrat

Publications (3)

Publication Number Publication Date
FI20060011A0 FI20060011A0 (sv) 2006-01-04
FI20060011A FI20060011A (sv) 2007-07-05
FI118225B true FI118225B (sv) 2007-08-31

Family

ID=35883825

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20060011A FI118225B (sv) 2006-01-04 2006-01-04 Förfarande för att effektivera lakningen av sulfidkoncentrat

Country Status (3)

Country Link
FI (1) FI118225B (sv)
PE (1) PE20071049A1 (sv)
WO (1) WO2007077290A1 (sv)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8315381D0 (en) * 1983-06-03 1983-07-06 Boc Group Plc Liquid phase oxidation
US6159435A (en) * 1996-05-06 2000-12-12 Atomaer Pty Ltd Leaching of mineral ores
FI100806B (sv) * 1996-08-12 1998-02-27 Outokumpu Base Metals Oy Förfarande för upplösning av zinkslig under atmosfäriska för hållanden
JP4765114B2 (ja) * 2001-03-28 2011-09-07 Dowaメタルマイン株式会社 亜鉛精鉱の浸出法
US6835230B2 (en) * 2001-03-28 2004-12-28 Dowa Mining Co., Ltd. Method for leaching zinc concentrate

Also Published As

Publication number Publication date
FI20060011A (sv) 2007-07-05
WO2007077290A1 (en) 2007-07-12
FI20060011A0 (sv) 2006-01-04
PE20071049A1 (es) 2007-11-02

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