EP1927667A1 - Verhüttungsverfahren für ferronickel mit kristallwasserfreiem nickeloxiderz in einem hochofen - Google Patents

Verhüttungsverfahren für ferronickel mit kristallwasserfreiem nickeloxiderz in einem hochofen Download PDF

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Publication number
EP1927667A1
EP1927667A1 EP05803616A EP05803616A EP1927667A1 EP 1927667 A1 EP1927667 A1 EP 1927667A1 EP 05803616 A EP05803616 A EP 05803616A EP 05803616 A EP05803616 A EP 05803616A EP 1927667 A1 EP1927667 A1 EP 1927667A1
Authority
EP
European Patent Office
Prior art keywords
ore
limestone
dolomite
ferronickel
sintered ore
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP05803616A
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English (en)
French (fr)
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EP1927667A4 (de
EP1927667B1 (de
Inventor
Shenjie Liu
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Individual
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Publication of EP1927667A4 publication Critical patent/EP1927667A4/de
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/02—General features in the manufacture of pig-iron by applying additives, e.g. fluxing agents
    • 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
    • C22B23/00—Obtaining nickel or cobalt
    • C22B23/02—Obtaining nickel or cobalt by dry processes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/008—Composition or distribution of the charge
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/02—Making special pig-iron, e.g. by applying additives, e.g. oxides of other metals
    • 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
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/16—Sintering; Agglomerating
    • 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
    • C22B23/00—Obtaining nickel or cobalt
    • C22B23/005—Preliminary treatment of ores, e.g. by roasting or by the Krupp-Renn process
    • 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
    • C22B23/00—Obtaining nickel or cobalt
    • C22B23/02—Obtaining nickel or cobalt by dry processes
    • C22B23/023—Obtaining nickel or cobalt by dry processes with formation of ferro-nickel or ferro-cobalt

Definitions

  • the present invention relates to a method of blast-furnace smelting, more particularly to a metallurgical method of ferronickel by blast-furnace smelting nickel oxide ore without crystal water.
  • hydrometallurgy For low-grade laterite nickel ore, hydrometallurgy is commonly used, namely, a method of vitriol soaking, ie converting solid-state nickel oxide, chromic oxide, ferric oxide or the like in the laterite nickel ore to mixed solution of liquid-state nickel sulfate, chrome sulfate, ferrite sulfate (Fe 2+ ) and the like, then separating nickel sulfate thereby, forming nickel metal only accounting for 1-2% of the gross by electrolysis with all the other components wasted.
  • the process equipment is characterized by large one-off investment, complex process, long periodicity, severe environmental pollution.
  • Blast-furnace smelting may also be use, however, because Cr 2 0 3 as concomitant commonly exists in laterite nickel ore, extremely high melting point of its own can lead to large viscosity of molten iron water so that iron water containing nickel and chrome can't flow out successfully and cause severe results such as frozen furnace and damaged furnace.
  • ferronickel nickel iron
  • the present invention provides a metallurgical method of ferronickel by blast-furnace smelting nickel oxide ore containing no crystal water in one-step way.
  • the invention provides a metallurgical method of ferronickel by blast-furnace smelting nickel oxide ore containing no crystal water, mainly comprising the steps as follows:
  • the raw ore block may not be added as metallurgical raw material in smelting steps.
  • nickel oxide ore and the weight ratio of its own are: Nickel: 0.5 ⁇ 4.5%; Chrome: 0.3 ⁇ 12%; iron: 38 ⁇ 55%.
  • the preferable weight ratio of the additives to the sintered ore is: fluorite 0.3 ⁇ 5% dolomite 0.5 ⁇ 5% limestone/calcium lime 8 ⁇ 15%.
  • the content of CaO in limestone is greater than 50%, while that of CaO in calcium lime is greater than 80%; the content of Mg in the dolomite is higher than 10% and that of CaF in dolomite is bigger than 80%.
  • furnace temperature can reach up to about 1700 °C in the conventional blast-furnace smelting technology
  • chrome contained in nickel oxide ore mainly exists in the form of Cr 2 O 3 whose melting point is about 2300° C, consequently, the reduction degree of chrome in nickel oxide ore is limited to cause bad fluidity of the obtained iron water and easily to produce phenomenon of frozen furnace, and even result in accidents.
  • the metallurgical method of one-step blast-furnace smelting provided by the present invention is characterized by short technical process, high yield of continuous production, total extraction of nickel, chrome and iron in laterite nickel ore once for all, high ratio of resource utilization.
  • the slag obtained by smelting is an excellent raw material to produce concrete, except the exhaustion of a given mass of CO 2 gas, no other solid or liquid wastes are produced and there is no pollution.
  • the metallurgical technology of blast-furnace smelting provided by the present invention has some advantages, for example low cost.
  • Blast furnace in the technology provided by the present invention can consume 150-200 kilowatt-hours per ton iron, while the conventional ore smelting technology need consume 2000-4000 kilowatt-hours and coke of 0.5 ton per ton iron;
  • high yield namely the mean yield of blast furnace is bigger than that of ore-smelting furnace; such as little pollution, little dust, high recovery rate of the raw materials which are respectively 97 ⁇ 98% for iron, 99% for nickel and 40 ⁇ 50% for chrome.
  • Sintered ore and other raw materials can be mixed and smelted, wherein the sintered ore and raw ore may be combined in any proportions and also used in total sintered ore or total raw ore.
  • the ratio of ore stone to coke is 1.9-2.1:1, when sintered ore is used as the total, that ratio of ore to coke is 2.2-2.4:1.
  • the main component in used nickel and chrome iron ore and its content (wt.%) are:
  • the main component in obtained sintered ore and its content (wt.%) are:
  • the main component in the obtained nickel iron by smelting and its content (wt.%) are:

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Manufacture And Refinement Of Metals (AREA)
EP05803616.1A 2005-09-16 2005-11-02 Verhüttungsverfahren für ferronickel mit kristallwasserfreiem nickeloxiderz in einem hochofen Not-in-force EP1927667B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB2005101029845A CN1306049C (zh) 2005-09-16 2005-09-16 不含结晶水的氧化镍矿经高炉冶炼镍铁工艺
PCT/CN2005/001827 WO2006050658A1 (fr) 2005-09-16 2005-11-02 Procede de preparation de ferronickel par fusion en haut fourneau de minerai d’oxyde de nickel depourvu d’eau cristalline

Publications (3)

Publication Number Publication Date
EP1927667A1 true EP1927667A1 (de) 2008-06-04
EP1927667A4 EP1927667A4 (de) 2008-11-05
EP1927667B1 EP1927667B1 (de) 2013-06-19

Family

ID=36076566

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05803616.1A Not-in-force EP1927667B1 (de) 2005-09-16 2005-11-02 Verhüttungsverfahren für ferronickel mit kristallwasserfreiem nickeloxiderz in einem hochofen

Country Status (7)

Country Link
EP (1) EP1927667B1 (de)
JP (1) JP4734414B2 (de)
KR (2) KR20070085069A (de)
CN (1) CN1306049C (de)
AU (1) AU2005304190B2 (de)
MY (1) MY140939A (de)
WO (1) WO2006050658A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009052580A1 (en) * 2007-10-26 2009-04-30 Bhp Billiton Innovation Pty Ltd Production of nickel
WO2012172168A1 (en) * 2011-06-13 2012-12-20 Outokumpu Oyj Method for improving the reduction degree in the smelting of ferroalloy
WO2015092132A1 (en) * 2013-12-17 2015-06-25 Outotec (Finland) Oy Method for exploiting dusts generated in a ferronickel process and sintered pellets produced by the method
NO20170743A1 (en) * 2017-05-05 2018-11-06 Knut Henriksen Method for converting a waste material from sulphide ore based nickel refining into nickel pig iron

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100595290C (zh) * 2006-09-06 2010-03-24 刘光火 氧化镍矿经电炉冶炼镍铬钴铁工艺
KR101322898B1 (ko) * 2007-05-11 2013-10-29 주식회사 포스코 니켈 함유 용철의 제조 방법
KR101322897B1 (ko) 2007-05-11 2013-10-29 주식회사 포스코 니켈 함유 용철의 제조 방법
KR100948926B1 (ko) 2007-07-23 2010-03-24 주식회사 포스코 니켈 함유 용철의 제조 방법
WO2008140226A1 (en) * 2007-05-11 2008-11-20 Posco Method for manufacturing molten iron comprising nickel
CN101353708B (zh) * 2008-09-11 2010-06-02 张家港浦项不锈钢有限公司 以氧化镍矿和不锈钢生产废弃物为原料的镍铁冶炼工艺
KR101009034B1 (ko) * 2008-09-19 2011-01-17 주식회사 포스코 페로니켈의 제조 방법
CN101392331B (zh) * 2008-10-10 2010-08-25 建德市新安江镍合金有限公司 回转窑处理镍矿的冶炼工艺
CN102212681B (zh) * 2010-12-27 2013-03-27 池州市润鹏冶金科技有限公司 烧结增效剂及其使用方法
CN102650002A (zh) * 2011-02-25 2012-08-29 云南锡业集团（控股）有限责任公司 改进的红土镍矿冶炼镍铁或镍锍的方法
CN102965521B (zh) * 2012-11-26 2013-11-20 罕王实业集团有限公司 一种采用湿球入炉低温还原方式冶炼红土镍矿的方法
CN103131872B (zh) * 2013-02-20 2015-06-03 罕王实业集团有限公司 一种铝热法控制节能环保红土镍矿冶炼竖炉温度的方法
CN103773948B (zh) * 2014-01-30 2015-08-26 首钢总公司 一种在炼铁系统中使用铁矿粉的方法
CN104060084A (zh) * 2014-05-08 2014-09-24 无锡市阳泰冶金炉料有限公司 含镍贫铬铁矿分离富集冶炼方法
CN104911288B (zh) * 2015-04-14 2017-09-29 四川金广实业（集团）股份有限公司 降低炉渣氧化镁含量的高炉冶炼红土镍矿方法

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GB1290436A (de) * 1969-04-30 1972-09-27
GB1400505A (en) * 1971-07-16 1975-07-16 Avesta Jernverks Ab Process for treatment of oxidic nickel ores
JPS62290843A (ja) * 1986-06-10 1987-12-17 Nippon Kokan Kk <Nkk> フェロニッケルの製造方法

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GB1290436A (de) * 1969-04-30 1972-09-27
GB1400505A (en) * 1971-07-16 1975-07-16 Avesta Jernverks Ab Process for treatment of oxidic nickel ores
JPS62290843A (ja) * 1986-06-10 1987-12-17 Nippon Kokan Kk <Nkk> フェロニッケルの製造方法

Non-Patent Citations (1)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009052580A1 (en) * 2007-10-26 2009-04-30 Bhp Billiton Innovation Pty Ltd Production of nickel
AU2008316326B2 (en) * 2007-10-26 2013-06-20 Bhp Billiton Innovation Pty Ltd Production of nickel
WO2012172168A1 (en) * 2011-06-13 2012-12-20 Outokumpu Oyj Method for improving the reduction degree in the smelting of ferroalloy
WO2015092132A1 (en) * 2013-12-17 2015-06-25 Outotec (Finland) Oy Method for exploiting dusts generated in a ferronickel process and sintered pellets produced by the method
CN105829552A (zh) * 2013-12-17 2016-08-03 奥图泰(芬兰)公司 利用在镍铁合金工艺中产生的粉尘的方法以及通过该方法生产的烧结球团
EA032170B1 (ru) * 2013-12-17 2019-04-30 Оутотек (Финлэнд) Ой Способ применения пыли, образованной в процессе получения ферроникеля, и спеченные окатыши, полученные данным способом
NO20170743A1 (en) * 2017-05-05 2018-11-06 Knut Henriksen Method for converting a waste material from sulphide ore based nickel refining into nickel pig iron
NO346383B1 (en) * 2017-05-05 2022-07-04 Knut Henriksen Method for converting a waste material from sulphide ore based nickel refining into nickel pig iron

Also Published As

Publication number Publication date
JP4734414B2 (ja) 2011-07-27
EP1927667A4 (de) 2008-11-05
AU2005304190B2 (en) 2009-09-17
EP1927667B1 (de) 2013-06-19
CN1306049C (zh) 2007-03-21
KR20100039908A (ko) 2010-04-16
KR20070085069A (ko) 2007-08-27
AU2005304190A1 (en) 2006-05-18
MY140939A (en) 2010-02-12
JP2009508004A (ja) 2009-02-26
CN1733950A (zh) 2006-02-15
WO2006050658A1 (fr) 2006-05-18

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