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FI89508C - Foerfarande foer rostning av sulfidiska malmer - Google Patents

Foerfarande foer rostning av sulfidiska malmer Download PDF

Info

Publication number
FI89508C
FI89508C FI906201A FI906201A FI89508C FI 89508 C FI89508 C FI 89508C FI 906201 A FI906201 A FI 906201A FI 906201 A FI906201 A FI 906201A FI 89508 C FI89508 C FI 89508C
Authority
FI
Finland
Prior art keywords
roasting
ore
lime
calcium
sulfur
Prior art date
Application number
FI906201A
Other languages
English (en)
Swedish (sv)
Other versions
FI89508B (fi
FI906201A (fi
FI906201A0 (fi
Inventor
Rolf Malmstroem
Original Assignee
Ahlstroem 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 Ahlstroem Oy filed Critical Ahlstroem Oy
Priority to FI906201A priority Critical patent/FI89508C/fi
Publication of FI906201A0 publication Critical patent/FI906201A0/fi
Priority to FR9115377A priority patent/FR2670503A1/fr
Priority to AU89622/91A priority patent/AU639623B2/en
Priority to DE4141647A priority patent/DE4141647A1/de
Priority to US07/808,720 priority patent/US5254320A/en
Publication of FI906201A publication Critical patent/FI906201A/fi
Publication of FI89508B publication Critical patent/FI89508B/fi
Application granted granted Critical
Publication of FI89508C publication Critical patent/FI89508C/fi

Links

Classifications

    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes

Landscapes

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

Claims (5)

1. Menetelmä sellaisten sulfidipitoisten malmien tai malmirikasteiden pasuttamiseksi, jotka sisältävät sekä 5 jalometalleja, jotka myöhemmässä prosessivaiheessa otetaan talteen, että jotakin epäpuhtautta, kuten arsenikkia, jolloin - sulfidipitoinen malmi tai malmirikaste ja rikkidioksidia sitova kalkkipitoinen aine syötetään pasutusuuniin, 10. pasutusuunia jäähdytetään suihkuttamalla siihen jääh dytysvettä, - rikkidioksidi saatetaan reagoimaan rikkiä sitovan aineen kanssa ja - näin syntyvä kalsiumsulfaatti ja pasutuksessa syntyvä 15 pasutustuote poistetaan uunista tunnettu siitä, että kalkkipitoinen aine syötetään pasutusuunin jäähdytysveteen ja jäähdytysvesi syötetään reaktiivisena kalkkipitoisena vesilietteenä pasutusuuniin jäähdyttämään 20 pasutusuuni ja reagoimaan pasutusuunissa muodostuvien rikkidioksidien kanssa muodostaen kalsiumsulfaattia.
2. Patenttivaatimuksen 1 mukainen menetelmä, tunnettu siitä, että kalkkipitoinen vesiliete on kalsiumhydrok- 25 sidilietettä.
3. Patenttivaatimuksen 1 mukainen menetelmä, tunnettu siitä, että kalkkipitoinen vesiliete saatetaan reagoimaan malmista pasutuksessa vapautuvien yhdisteiden, kuten 30 arsenikin, kanssa muodostaen kalsiumarsenaattia.
4. Patenttivaatimuksen 1 mukainen menetelmä, tunnettu siitä, että sulfidipitoinen malmi pasutetaan 600 - 850°C lämpötilassa. 35
5. Patenttivaatimuksen 4 mukainen menetelmä, tunnettu siitä, että sulfidipitoinen malmi pasutetaan 650 - 750°C lämpötilassa.
FI906201A 1990-12-17 1990-12-17 Foerfarande foer rostning av sulfidiska malmer FI89508C (fi)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FI906201A FI89508C (fi) 1990-12-17 1990-12-17 Foerfarande foer rostning av sulfidiska malmer
FR9115377A FR2670503A1 (fr) 1990-12-17 1991-12-11 Procede de grillage de minerais sulfures.
AU89622/91A AU639623B2 (en) 1990-12-17 1991-12-12 Method for roasting sulphide ores
DE4141647A DE4141647A1 (de) 1990-12-17 1991-12-17 Verfahren zum roesten von sulfidischen erzen
US07/808,720 US5254320A (en) 1990-12-17 1991-12-17 Method for roasting sulphide ores

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI906201 1990-12-17
FI906201A FI89508C (fi) 1990-12-17 1990-12-17 Foerfarande foer rostning av sulfidiska malmer

Publications (4)

Publication Number Publication Date
FI906201A0 FI906201A0 (fi) 1990-12-17
FI906201A FI906201A (fi) 1992-06-18
FI89508B FI89508B (fi) 1993-06-30
FI89508C true FI89508C (fi) 1993-10-11

Family

ID=8531586

Family Applications (1)

Application Number Title Priority Date Filing Date
FI906201A FI89508C (fi) 1990-12-17 1990-12-17 Foerfarande foer rostning av sulfidiska malmer

Country Status (5)

Country Link
US (1) US5254320A (fi)
AU (1) AU639623B2 (fi)
DE (1) DE4141647A1 (fi)
FI (1) FI89508C (fi)
FR (1) FR2670503A1 (fi)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6482373B1 (en) * 1991-04-12 2002-11-19 Newmont Usa Limited Process for treating ore having recoverable metal values including arsenic containing components
ZA926237B (en) * 1991-09-25 1993-03-03 Bhp Utah Int Inc Sulfide roasting with lime.
DE19546538A1 (de) * 1995-12-13 1997-06-19 Metallgesellschaft Ag Verfahren zur thermischen Behandlung refraktärer Golderze
WO2008036824A1 (en) * 2006-09-20 2008-03-27 Hw Advanced Technologies, Inc. A method and means for using microwave energy to oxidize sulfidic copper ore into a prescribed oxide-sulfate product
CN102125887B (zh) * 2010-10-15 2012-10-03 韩诗武 铜矿石筛选分离铜合金的方法
JP2014205869A (ja) * 2013-04-11 2014-10-30 Jx日鉱日石金属株式会社 前処理後の金鉱石
CN106435163A (zh) * 2016-11-22 2017-02-22 江苏省冶金设计院有限公司 一种磨矿磁选处理硫铁矿的系统和方法
CN115449644B (zh) * 2022-10-20 2024-03-12 东北大学 一种含硫碳质金矿分段固硫氧化悬浮焙烧提金系统及方法
CN115537573B (zh) * 2022-10-27 2023-11-24 东北大学 一种含碳金矿分段微波焙烧-氰化提金系统

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA539882A (en) * 1957-04-23 A. Fischer Francois Roasting of arsenopyrite ores
US1377012A (en) * 1918-05-10 1921-05-03 American Smelting Refining Process of recovering sulfur dioxid
US2650159A (en) * 1949-11-23 1953-08-25 Dorr Co Treating arsenical gold ores
GB677050A (en) * 1949-11-23 1952-08-06 Dorr Co Roasting of arsenopyrite gold-bearing ores
AT374209B (de) * 1982-02-24 1984-03-26 Voest Alpine Ag Verfahren zum aufschliessen sulfidischer rohstoffe
NO157181C (no) * 1983-09-21 1988-02-03 Megon & Co As Fremgangsmaate for utvinning av sjeldne jordmetaller fra et karbonholdig raamateriale.
CA1234696A (en) * 1985-03-20 1988-04-05 Grigori S. Victorovich Metallurgical process iii
SE451158B (sv) * 1985-12-20 1987-09-07 Asea Stal Ab Sett att forbettra utnyttjningen av en svavelabsorbent i en kraftanleggning med fluidiserad bedd samt kraftanleggning for utnyttjning av settet
SE457014B (sv) * 1987-03-25 1988-11-21 Abb Stal Ab Saett att foerbaettra utnyttjningen av svavelabsorbent vid foerbraenning i en fluidiserad baedd och en kraftanlaeggning med foerbraenning i fluidiserad baedd
DE3814127A1 (de) * 1987-10-02 1989-11-09 Gfr Aufbereitung Reststoffe Verfahren zur sinterroestung von sulfidischen erzen
FI83670C (fi) * 1988-03-30 1991-08-12 Ahlstroem Oy Foerreduktion av metalloxidhaltigt material.
CA2004475A1 (en) * 1989-12-04 1991-06-04 Gordon Edward Agar Metal recovery

Also Published As

Publication number Publication date
FR2670503A1 (fr) 1992-06-19
AU639623B2 (en) 1993-07-29
AU8962291A (en) 1992-06-25
US5254320A (en) 1993-10-19
FI89508B (fi) 1993-06-30
DE4141647A1 (de) 1992-08-20
FI906201A (fi) 1992-06-18
FI906201A0 (fi) 1990-12-17

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Owner name: A. AHLSTROM CORPORATION