CN1743476A - Nickel-iron smelting process from nickel oxide ore containing crystal water through blast furnace - Google Patents

Nickel-iron smelting process from nickel oxide ore containing crystal water through blast furnace Download PDF

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CN1743476A
CN1743476A CNA200510102985XA CN200510102985A CN1743476A CN 1743476 A CN1743476 A CN 1743476A CN A200510102985X A CNA200510102985X A CN A200510102985XA CN 200510102985 A CN200510102985 A CN 200510102985A CN 1743476 A CN1743476 A CN 1743476A
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blast
furnace smelting
nickel oxide
nickel
ore
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CN1300352C (en
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刘沈杰
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Priority to CNB200510102985XA priority Critical patent/CN1300352C/en
Priority to EP05801995.1A priority patent/EP1927666B1/en
Priority to KR1020107006683A priority patent/KR20100039907A/en
Priority to JP2008530297A priority patent/JP4734415B2/en
Priority to PCT/CN2005/001828 priority patent/WO2006045254A1/en
Priority to AU2005299184A priority patent/AU2005299184B2/en
Priority to KR1020067017163A priority patent/KR20070085068A/en
Publication of CN1743476A publication Critical patent/CN1743476A/en
Priority to MYPI20064303A priority patent/MY147763A/en
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • 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
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/2413—Binding; Briquetting ; Granulating enduration of pellets

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (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)

Abstract

This invention provides a technology for smelting ferronickel of a nickel oxide ore containing water of crystallization including crushing and sieving the original ore to produce the powder to sintered ore blocks, in which, the sintered blocks, coke, limestone/calcium lime, dolomite and cand are mixed and matched to be smelted in a blast furnace to get the ferric nickel and the weight percentage of additive and the sintered ore blocks is: cand 0.3-20%, dolomite 0-8%, limestone/calcium lime 4-35% the blocks are crushed, sieved and magnetic-selected to get refined breezes to be sintered.

Description

The nickel oxide ore that contains crystal water is through blast-furnace smelting ferronickel technology
Technical field:
The present invention relates to blast furnace smelting process, the nickel oxide ore that particularly contains crystal water is through blast-furnace smelting ferronickel technology.
Background technology:
Along with the widespread use of global stainless steel and special steel, causing the main element of smelting stainless steel and special steel---the short supply of nickel metal causes that price skyrockets.Traditional nickel Metal Production is mainly extracted its mature production technology from the nickel sulfide ore that takes up an area of ball nickel resources 30%.But exploit continuously through last 100 years, present reserves deficiency, resource presents crisis.Force people to give more multiple looking to extracting the nickel metal in the red soil nickel ore (nickel oxide ore) that takes up an area of ball nickel resources 70%.For a long time red soil nickel ore do not obtain the major cause of large-scale development be from these type of mineral reserve, extract technology cost height, the complex process of nickel, yield poorly, seriously polluted.In the world to high-grade red soil nickel ore (nickel content is more than 2.0%), generally adopt mine heat furnace smelting at present, but there are drawbacks such as power consumption height, environmental pollution is big, interval type production yields poorly in this technology.Adopt hydrometallurgy for low-grade red soil nickel ore more, it is the method that sulfuric acid soaks, nickel oxide solid-state in the red soil nickel ore, chromic oxide, ferric oxide etc. are converted into mixing solutionss such as liquid single nickel salt, chromium sulphate, ferrous sulfate, again single nickel salt is therefrom separated, form the metallic nickel that only accounts for total amount 1～2% through electrolysis, all the other compositions all go out of use.This processing unit one-time investment is big, complex process, the cycle is long, environmental pollution is serious.Also can adopt blast-furnace smelting, but because the normal association of red soil nickel ore there is Cr 2O 3Composition, and the fusing point of chromium is very high, makes that the molten iron viscosity after melting is big, the Ni and Cr contained molten iron can not flow out smoothly, causes the serious consequence of freezing stove, ruining stove.Many enterprises have carried out for a long time with the technical study that research institution smelts into ferronickel (ferronickel) for red soil nickel ore through the blast furnace single stage method both at home and abroad, but do not have the report of success so far.Therefore, it is low to seek a kind of efficient low-consume, output height, cost, and pollution-free or oligosaprobic Technology of directly smelting into ferronickel from red soil nickel ore becomes the problem that needs to be resolved hurrily in the industry.
Summary of the invention:
The present invention is intended to address the above problem, and provides a kind of nickel oxide ore of crystal water that contains through blast furnace single stage method ferronickel smelting proces.
Above-mentioned purpose of the present invention is to realize by following technical scheme.
The invention provides a kind of crystal water nickel oxide ore that contains through blast-furnace smelting ferronickel technology, mainly comprise the steps:
With the crushing raw ore screening, wherein particle diameter carries out sintering less than breeze and coke powder, the unslaked lime/Wingdale mix of 2mm, obtains the sintering nugget;
Sintering nugget, coke, Wingdale/unslaked lime, rhombspar and fluorite be mixed carry out blast-furnace smelting and obtain ferronickel, wherein, following additive and agglomerate weight ratio are:
Fluorite 0.3～20%
Rhombspar 0～8%
Wingdale/unslaked lime 4～35%.
The crystal water nickel oxide ore that contains provided by the present invention also can comprise the steps: through blast-furnace smelting ferronickel technology
Once sintered gained sintering nugget pulverizing is got fine ore after carry out magnetic separation after the screening of 300～500 mesh sieves;
Fine ore and coke powder, unslaked lime/Wingdale mix are carried out sintering, obtain the sintering nugget;
Sintering nugget behind the double sintering and coke, Wingdale/unslaked lime, rhombspar and fluorite be mixed carry out blast-furnace smelting and obtain ferronickel.
The main component of wherein said nickel oxide ore and weight ratio thereof are:
Nickel: 0.5～4%;
Chromium: 0.3～12%;
Iron: 7～55%.
The weight ratio of wherein said additive and agglomerate is preferably:
Fluorite 0.3～10%
Rhombspar 0.5～5%
Wingdale/unslaked lime 8～20%.
CaO content is greater than 50% in the wherein said Wingdale, in the unslaked lime CaO content greater than 80%, Mg content＞10% in the described rhombspar, CaF content＞80% in the described fluorite.
Compare with prior art, in the tradition blast furnace smelting process, furnace temperature can reach about 1700 ℃, contained chromium is many in the nickel oxide ore exists with the chromium sesquioxide form, the fusing point of chromium sesquioxide is about 2300 ℃, so the reducing degree of chromium is limited in the nickel oxide ore, it is mobile poor to cause smelting the gained molten iron, easily freeze the stove phenomenon, even have an accident.Add fluorite in the nickel chromium iron mining and metallurgy nickel metallurgy iron process provided by the present invention and can effectively reduce the influence of chromium furnace temperature, improved the flowability of molten iron, simultaneously, because the amount that adds fluorite in the smelting technology provided by the present invention is calculated through strict, can effectively avoid because the too high accident such as hearth breakout that causes of fluorite add-on takes place.Simultaneously, the contained magnesium of rhombspar also can help to solve the problem of the mobile difference of molten iron that chromium causes in the nickel chromium triangle ore deposit in the technology that this transmission provided.Wingdale not only can provide the basicity can also balanced above-mentioned two kinds of additives.Blast furnace single stage method smelting technology provided by the present invention has that technical process is short, continuous production output big, the nickel chromium iron element is disposable in the red soil nickel ore all is extracted the resource utilization height.It smelts the slag that produces is the good raw material of producing cement, removes a certain amount of CO of discharging 2Gas does not have other solid or liquid debris to produce, and is pollution-free.
Through comparison, blast furnace smelting process cost provided by the present invention is low, and the hot furnaceman in traditional ore deposit plants and need expend 2000～4000 degree electricity/ton iron, 0.5 ton in coke, blast furnace power consumption 150～200 degree electricity/ton iron in the technology provided by the present invention.Save energy, output is big, and the blast furnace mean yield is greater than the hot stove mean yield in ore deposit.Pollute and lack, dust is few.Raw material rate of recovery height, yield is respectively: iron 97～98%, nickel 99%, chromium 40～50%.
Embodiment:
Engage specific embodiment below the present invention is further explained, the following example does not limit protection scope of the present invention, and all modification and adjustment of making based on thought of the present invention all belong to the scope of protection of the invention.
Raw ore is selected from the nickel chromium triangle iron ore of Albanian import among the embodiment.
With the crushing raw ore screening, wherein particle diameter carries out sintering less than breeze and coke powder, the unslaked lime/Wingdale mix of 2mm, obtains the sintering nugget;
Once sintered gained sintering nugget pulverizing is got fine ore after carry out magnetic separation after the screening of 300～500 mesh sieves;
Fine ore and coke powder, unslaked lime/Wingdale mix are carried out sintering, obtain the sintering nugget;
Sintering nugget agglomerate and other raw material mixed smelting with particle diameter 10～50mm obtain ferronickel.
Used nickel chromium triangle iron ore major ingredient and content (weight %) are
Figure A20051010298500061
The main component of gained agglomerate and content (weight %) are:
Figure A20051010298500062
Blast furnace burden is formed (weight Kg) as following table
The blast furnace smelting process parameter
Figure A20051010298500071
Smelting gained ferronickel main component and content (weight %) is:
Figure A20051010298500072

Claims (7)

1. a nickel oxide ore that contains crystal water is through blast-furnace smelting ferronickel technology, and it is characterized in that: described blast furnace smelting process mainly comprises the steps:
With the crushing raw ore screening, wherein particle diameter carries out sintering less than breeze and coke powder, the unslaked lime/Wingdale mix of 2mm, obtains the sintering nugget;
Sintering nugget, coke, Wingdale/unslaked lime, rhombspar and fluorite be mixed carry out blast-furnace smelting and obtain ferronickel, wherein, following additive and agglomerate weight ratio are:
Fluorite 0.3～20%
Rhombspar 0～8%
Wingdale/unslaked lime 4～35%.
2. the crystalline water nickel oxide ore that contains as claimed in claim 1 is through blast-furnace smelting ferronickel technology, and wherein said blast furnace smelting process also comprises the steps:
The pulverizing of sintering nugget is got fine ore after carry out magnetic separation after the screening of 300～500 mesh sieves;
Fine ore and coke powder, unslaked lime/Wingdale mix are carried out sintering, obtain the sintering nugget;
Sintering nugget behind the double sintering and coke, Wingdale/unslaked lime, rhombspar and fluorite be mixed carry out blast-furnace smelting and obtain ferronickel.
3. the nickel oxide ore that contains crystal water as claimed in claim 1 or 2 is through blast-furnace smelting ferronickel technology, and the main component of wherein said nickel oxide ore and weight ratio thereof are: nickel: 0.5～4%; Chromium: 0.3～12%; Iron: 7～55%.
4. the nickel oxide ore that contains crystal water as claimed in claim 1 or 2 is through blast-furnace smelting ferronickel technology, and the weight ratio of wherein said additive and agglomerate is preferably:
Fluorite 0.3～10%
Rhombspar 0.5～5%
Wingdale/unslaked lime 8～20%.
5. the nickel oxide ore that contains crystal water as claimed in claim 1 or 2 is through blast-furnace smelting ferronickel technology, and CaO content is greater than 50% in the wherein said Wingdale, and CaO content is greater than 80% in the unslaked lime.
6. the nickel oxide ore that contains crystal water as claimed in claim 1 or 2 is through blast-furnace smelting ferronickel technology, Mg content＞10% in the wherein said rhombspar.
7. the nickel oxide ore that contains crystal water as claimed in claim 1 or 2 is through blast-furnace smelting ferronickel technology, CaF content＞80% in the wherein said fluorite.
CNB200510102985XA 2005-09-16 2005-09-16 Nickel-iron smelting process from nickel oxide ore containing crystal water through blast furnace Ceased CN1300352C (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CNB200510102985XA CN1300352C (en) 2005-09-16 2005-09-16 Nickel-iron smelting process from nickel oxide ore containing crystal water through blast furnace
PCT/CN2005/001828 WO2006045254A1 (en) 2005-09-16 2005-11-02 A smelting process of ferronickel with nickel oxide ore containing of crystal water in a blast furnace
KR1020107006683A KR20100039907A (en) 2005-09-16 2005-11-02 A smelting process of ferronickel with nickel oxide ore containing of crystal water in a blast furnace
JP2008530297A JP4734415B2 (en) 2005-09-16 2005-11-02 Method of refining nickel oxide ore containing crystal water into nickel iron in a blast furnace
EP05801995.1A EP1927666B1 (en) 2005-09-16 2005-11-02 A smelting process of ferronickel with nickel oxide ore containing of crystal water in a blast furnace
AU2005299184A AU2005299184B2 (en) 2005-09-16 2005-11-02 A smelting process of ferronickel with nickel oxide ore containing of crystal water in a blast furnace
KR1020067017163A KR20070085068A (en) 2005-09-16 2005-11-02 A smelting process of ferronickel with nickel oxide ore containing of crystal water in a blast furnace
MYPI20064303A MY147763A (en) 2005-09-16 2006-10-10 A smelting process of ferronickel with nickel oxide ore containing of crystal water in a blast furnace

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CNB200510102985XA CN1300352C (en) 2005-09-16 2005-09-16 Nickel-iron smelting process from nickel oxide ore containing crystal water through blast furnace

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CN1743476A true CN1743476A (en) 2006-03-08
CN1300352C CN1300352C (en) 2007-02-14

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EP (1) EP1927666B1 (en)
JP (1) JP4734415B2 (en)
KR (2) KR20100039907A (en)
CN (1) CN1300352C (en)
AU (1) AU2005299184B2 (en)
MY (1) MY147763A (en)
WO (1) WO2006045254A1 (en)

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WO2008009178A1 (en) * 2006-07-12 2008-01-24 Guanghuo Liu Dephosphorization method in the process of smelting ni-cr pig iron from a nickel oxide ore
WO2008131614A1 (en) * 2007-04-30 2008-11-06 Zhengzhou Yongtong Special Steel Co., Ltd. A SMELTING METHOD OF LOW-P STAINLESS STEEL BASE USING LOW-GRADE IRONSTONE CONTAINING Ni AND Cr
CN100478477C (en) * 2007-07-09 2009-04-15 贵研铂业股份有限公司 Method for extracting nickel iron alloy from laterite ore
CN101638730A (en) * 2008-07-31 2010-02-03 塔塔钢铁有限公司 Method for preparing sponge chromium from metallurgical-grade chromite concentrate fine powder
CN101792866A (en) * 2010-03-26 2010-08-04 常州市兴昌盛合金制品有限公司 Method for refining ferronickel by utilizing waste alumina-based nickel accelerant
CN102212691A (en) * 2011-05-20 2011-10-12 营口宝成不锈钢有限公司 Method for producing chromium-nickel-iron alloy
CN102719582A (en) * 2012-07-03 2012-10-10 刘光火 Process for smelting low-quality complex ore
CN103103366A (en) * 2013-02-20 2013-05-15 罕王实业集团有限公司 Method for controlling energy saving and environment protecting laterite nickel ore smelting shaft furnace temperature by silicothermic process
CN111763823A (en) * 2020-08-26 2020-10-13 甘肃高能中色环保科技有限公司 Method for producing sintered cake from complex nickel-containing wet material
CN112573842A (en) * 2020-12-29 2021-03-30 中国水利水电第九工程局有限公司 Method for preparing ingredients for cement production by using limestone mine tailing dolomite

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KR101322898B1 (en) * 2007-05-11 2013-10-29 주식회사 포스코 Method for manufacturing molten irons comprising nickels
KR101322897B1 (en) 2007-05-11 2013-10-29 주식회사 포스코 Method for manufacturing molten irons comprising nickels
KR101359970B1 (en) * 2011-12-20 2014-02-12 주식회사 포스코 Recycling method of ferro nickel slag
KR101536745B1 (en) * 2012-12-28 2015-07-15 재단법인 포항산업과학연구원 Material for smelting magnesium
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008009178A1 (en) * 2006-07-12 2008-01-24 Guanghuo Liu Dephosphorization method in the process of smelting ni-cr pig iron from a nickel oxide ore
WO2008131614A1 (en) * 2007-04-30 2008-11-06 Zhengzhou Yongtong Special Steel Co., Ltd. A SMELTING METHOD OF LOW-P STAINLESS STEEL BASE USING LOW-GRADE IRONSTONE CONTAINING Ni AND Cr
CN100478477C (en) * 2007-07-09 2009-04-15 贵研铂业股份有限公司 Method for extracting nickel iron alloy from laterite ore
CN101638730A (en) * 2008-07-31 2010-02-03 塔塔钢铁有限公司 Method for preparing sponge chromium from metallurgical-grade chromite concentrate fine powder
CN101792866A (en) * 2010-03-26 2010-08-04 常州市兴昌盛合金制品有限公司 Method for refining ferronickel by utilizing waste alumina-based nickel accelerant
CN102212691A (en) * 2011-05-20 2011-10-12 营口宝成不锈钢有限公司 Method for producing chromium-nickel-iron alloy
CN102719582A (en) * 2012-07-03 2012-10-10 刘光火 Process for smelting low-quality complex ore
CN102719582B (en) * 2012-07-03 2014-10-29 刘光火 Process for smelting low-quality complex ore
CN103103366A (en) * 2013-02-20 2013-05-15 罕王实业集团有限公司 Method for controlling energy saving and environment protecting laterite nickel ore smelting shaft furnace temperature by silicothermic process
CN103103366B (en) * 2013-02-20 2014-07-16 罕王实业集团有限公司 Method for controlling energy saving and environment protecting laterite nickel ore smelting shaft furnace temperature by silicothermic process
CN111763823A (en) * 2020-08-26 2020-10-13 甘肃高能中色环保科技有限公司 Method for producing sintered cake from complex nickel-containing wet material
CN112573842A (en) * 2020-12-29 2021-03-30 中国水利水电第九工程局有限公司 Method for preparing ingredients for cement production by using limestone mine tailing dolomite
CN112573842B (en) * 2020-12-29 2022-04-22 中国水利水电第九工程局有限公司 Method for preparing ingredients for cement production by using limestone mine tailing dolomite

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CN1300352C (en) 2007-02-14
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AU2005299184A1 (en) 2006-05-04
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