CN106319206A - Method for producing ferro-nickel alloy with nickel laterite ore - Google Patents
Method for producing ferro-nickel alloy with nickel laterite ore Download PDFInfo
- Publication number
- CN106319206A CN106319206A CN201610784647.7A CN201610784647A CN106319206A CN 106319206 A CN106319206 A CN 106319206A CN 201610784647 A CN201610784647 A CN 201610784647A CN 106319206 A CN106319206 A CN 106319206A
- Authority
- CN
- China
- Prior art keywords
- nickel
- hearth furnace
- rotary hearth
- laterite ore
- nickel 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.)
- Pending
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
- C22B23/00—Obtaining nickel or cobalt
- C22B23/02—Obtaining nickel or cobalt by dry processes
- C22B23/021—Obtaining nickel or cobalt by dry processes by reduction in solid state, e.g. by segregation 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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/2406—Binding; Briquetting ; Granulating pelletizing
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to the field of metallurgy, in particular to a method for producing ferro-nickel alloy with nickel laterite ore. The method includes the steps that the nickel laterite ore is crushed and screened, and after reducing coal and limestone are matched to be added into the nickel laterite ore of being larger than 2mm, the mixture is directly distributed into a rotary hearth furnace; after reducing coal and limestone are matched to be added into the nickel laterite ore of being smaller than 2mm, the mixture is pressed into carbon-containing pellets through a ball press machine, and the carbon-containing pellets are distributed into a heat accumulating type coal-based rotary hearth furnace for quick high-temperature reduction after being dried by a grating machine; and products discharged out of the rotary hearth furnace are fed into melting equipment for slag-iron separation so that the ferro-nickel alloy can be produced. By means of the method for producing the ferro-nickel alloy with the nickel laterite ore, the raw materials can be treated in a classified mode, nickel resources can be recycled to the maximum degree, and the critical shortage dilemma of the nickel resources nowadays can be relieved.
Description
Technical field
The present invention relates to field of metallurgy, specially the method for laterite nickel ore and producing ferronickel alloy.
Background technology
The iron smelting method that point stove melts point is melted in coal base rotary hearth furnace direct-reduction-combustion gas, by lateritic nickel ore, reducing agent coal, fluxes
Agent is pressed into pelletizing according to a certain percentage, and pelletizing enters rotary hearth furnace after drying and reduces, then by rotary hearth furnace discharging product heat
Tinning feeding coal gas makees the molten point stove of combustion gas of fuel and carries out molten point, finally gives dilval.But, said method is being carried out
Carry out pressure ball after lateritic nickel ore being all crushed to relatively fine fraction during Feedstock treating, do not consider raw material is carried out staged care.
And, during pressure ball, roller is easy to wear, causes pressure ball relatively costly, and this causes carrying of pressure ball cost to a certain extent
Height and energy waste.When processing the lateritic nickel ore of nickel grade relatively low (such as nickel grade 1%-1.2%) in aforementioned manners, if not to molten
Product after Fen carries out subsequent treatment, and the response rate of nickel is difficult to reach more than 90%, causes nickel resources to waste.
Summary of the invention
For above-mentioned technical problem, the present invention saves early stage pelletizing processing cost, improves the lateritic nickel ore of the response rate of nickel
The method producing dilval.
Concrete technical scheme is:
The method of laterite nickel ore and producing ferronickel alloy, comprises the steps:
(1) lateritic nickel ore being carried out crushing and screening, the lateritic nickel ore more than 2mm is direct cloth after allocating reduction coal, limestone into
Entering rotary hearth furnace, the lateritic nickel ore less than 2mm is pressed into carbonaceous pelletizing, carbonaceous pelletizing with ball press after allocating reduction coal, limestone into
Heat accumulating type coal base rotary hearth furnace it is distributed into again after drying grate is dried；
(2) carrying out high temperature fast restore in stove after carbonaceous pelletizing is distributed into heat accumulating type coal base rotary hearth furnace, reduction temperature is
1230 DEG C～1300 DEG C, recovery time 30min～45min, the high-temperature flue gas of rotary hearth furnace output is sent into drying grate and is contained for drying
Carbon pellets；
(3) rotary hearth furnace discharging product feeding fusion apparatus is carried out slag sluicing system and produce dilval, melting of fusion apparatus
Melting temperature is 1550 DEG C～1650 DEG C, melting time 50min～70min；
(4) melting slag step (3) obtained is after break process, carries out mill ore magnetic selection process, the metal after magnetic separation
Iron powder returns again to the described fusion apparatus of step (3) and carries out slag sluicing system, obtains dilval.
The method of the laterite nickel ore and producing ferronickel alloy that the present invention provides, carries out staged care to raw material, makes nickel resources obtain
To farthest recycling, this can alleviate the predicament of current nickel resources critical shortage.
Detailed description of the invention
For the ease of understanding the present invention, by detailed description of the invention, the present invention will be described more fully below.But
It is that the present invention can realize in many different forms, however it is not limited to embodiment described herein.On the contrary, provide this
The purpose of a little embodiments is to make the understanding to the disclosure more thorough comprehensively.
The method of laterite nickel ore and producing ferronickel alloy, comprises the steps:
(1) lateritic nickel ore being carried out crushing and screening, the lateritic nickel ore more than 2mm is direct cloth after allocating reduction coal, limestone into
Entering rotary hearth furnace, the lateritic nickel ore less than 2mm is pressed into carbonaceous pelletizing, carbonaceous pelletizing with ball press after allocating reduction coal, limestone into
Heat accumulating type coal base rotary hearth furnace it is distributed into again after drying grate is dried；
(2) carrying out high temperature fast restore in stove after carbonaceous pelletizing is distributed into heat accumulating type coal base rotary hearth furnace, reduction temperature is
1230 DEG C～1300 DEG C, recovery time 30min～45min, the high-temperature flue gas of rotary hearth furnace output is sent into drying grate and is contained for drying
Carbon pellets；
(3) rotary hearth furnace discharging product feeding fusion apparatus is carried out slag sluicing system and produce dilval, melting of fusion apparatus
Melting temperature is 1550 DEG C～1650 DEG C, melting time 50min～70min；
(4) melting slag step (3) obtained is after break process, carries out mill ore magnetic selection process, the metal after magnetic separation
Iron powder returns again to the described fusion apparatus of step (3) and carries out slag sluicing system, obtains dilval.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed, but also
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that, for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (1)
1. the method for laterite nickel ore and producing ferronickel alloy, it is characterised in that comprise the steps:
(1) lateritic nickel ore being carried out crushing and screening, the lateritic nickel ore more than 2mm is directly distributed into after allocating reduction coal, limestone into and turns
End stove, the lateritic nickel ore less than 2mm is pressed into carbonaceous pelletizing with ball press after allocating reduction coal, limestone into, and carbonaceous pelletizing is through chain
Comb machine is distributed into heat accumulating type coal base rotary hearth furnace after drying again；
(2) carrying out high temperature fast restore in stove after carbonaceous pelletizing is distributed into heat accumulating type coal base rotary hearth furnace, reduction temperature is 1230
DEG C～1300 DEG C, recovery time 30min～45min, the high-temperature flue gas of rotary hearth furnace output is sent into drying grate and is used for drying carbon containing ball
Group；
(3) rotary hearth furnace discharging product feeding fusion apparatus is carried out slag sluicing system and produce dilval, the melted temperature of fusion apparatus
Degree is 1550 DEG C～1650 DEG C, melting time 50min～70min；
(4) melting slag step (3) obtained is after break process, carries out mill ore magnetic selection process, the metal iron powder after magnetic separation
The described fusion apparatus returning again to step (3) carries out slag sluicing system, obtains dilval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610784647.7A CN106319206A (en) | 2016-08-31 | 2016-08-31 | Method for producing ferro-nickel alloy with nickel laterite ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610784647.7A CN106319206A (en) | 2016-08-31 | 2016-08-31 | Method for producing ferro-nickel alloy with nickel laterite ore |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106319206A true CN106319206A (en) | 2017-01-11 |
Family
ID=57789282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610784647.7A Pending CN106319206A (en) | 2016-08-31 | 2016-08-31 | Method for producing ferro-nickel alloy with nickel laterite ore |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106319206A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107177790A (en) * | 2017-04-19 | 2017-09-19 | 广西盛隆冶金有限公司 | A kind of sea sand ore deposit and lateritic nickel ore high intensity cold agglomerated pellet preparation method |
| CN107254620A (en) * | 2017-04-19 | 2017-10-17 | 广西盛隆冶金有限公司 | One kind is using sea sand ore deposit and lateritic nickel ore production vanadium titanium nichrome technique |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102643997A (en) * | 2012-04-09 | 2012-08-22 | 北京神雾环境能源科技集团股份有限公司 | Laterite-nickel ore processing method for efficiently recovering nickel resources |
| CN104195279A (en) * | 2014-09-03 | 2014-12-10 | 中南大学 | Process for preparing ferric-nickel from laterite-nickel ore |
-
2016
- 2016-08-31 CN CN201610784647.7A patent/CN106319206A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102643997A (en) * | 2012-04-09 | 2012-08-22 | 北京神雾环境能源科技集团股份有限公司 | Laterite-nickel ore processing method for efficiently recovering nickel resources |
| CN104195279A (en) * | 2014-09-03 | 2014-12-10 | 中南大学 | Process for preparing ferric-nickel from laterite-nickel ore |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107177790A (en) * | 2017-04-19 | 2017-09-19 | 广西盛隆冶金有限公司 | A kind of sea sand ore deposit and lateritic nickel ore high intensity cold agglomerated pellet preparation method |
| CN107254620A (en) * | 2017-04-19 | 2017-10-17 | 广西盛隆冶金有限公司 | One kind is using sea sand ore deposit and lateritic nickel ore production vanadium titanium nichrome technique |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102643997B (en) | Laterite-nickel ore processing method for efficiently recovering nickel resources | |
| CN101294242B (en) | Method for extracting multi-metallic element from high chromium vanadium titanium octahedral iron ore | |
| US8262766B2 (en) | Method for reducing chromium containing raw material | |
| CN103451346B (en) | Copper smelting slag reduction method | |
| CN101967571B (en) | Method for using red-soil nickel ore to produce nickel-iron alloy in tunnel kiln-electric furnace | |
| CN105603214A (en) | Method for producing ferronickel by directly reducing laterite-nickel ore in rotary kiln | |
| JP2012500902A5 (en) | ||
| KR101493965B1 (en) | Process for recovering iron and zinc from iron and zinc-bearing waste | |
| JP5858105B1 (en) | Nickel oxide ore smelting method | |
| CN113699370A (en) | Process for producing semisteel by coal-based hydrogen metallurgy, hot agglomeration and electric furnace in iron ore concentrate rotary kiln | |
| CN114517260A (en) | Metallized pellet directly applying biomass solid waste and molten iron production method | |
| CN106367554B (en) | Iron and useful metal and the method for producing slag wool are extracted in a kind of secondary resource | |
| CN106319206A (en) | Method for producing ferro-nickel alloy with nickel laterite ore | |
| JP2017505379A (en) | Production method of manganese-containing alloy iron | |
| KR20130010029A (en) | Method for manufacturing pig iron | |
| CN106399718A (en) | Lateritic nickel ore treating method capable of efficiently recovering nickel resources | |
| CN102312081B (en) | Method of preparing nickel alloy from nickel laterite ores with vehicle rapid reducing furnace | |
| CN114774705A (en) | Method for recovering iron and zinc and preparing refractory raw materials by using copper smelting slag | |
| CN103789538B (en) | A kind of method utilizing grate kiln process nickel fibers slag | |
| CN102758093A (en) | Smelting method for nickel oxide ore | |
| JP5532823B2 (en) | Method for recovering valuable metals from waste batteries | |
| KR101714995B1 (en) | Method and facility for producing reduced iron | |
| US10017836B2 (en) | Method for producing reduced iron | |
| CN110306058B (en) | Process for efficiently treating zinc-iron-containing metallurgical dust and sludge by rotary hearth furnace | |
| JP5119815B2 (en) | Operation method of mobile hearth furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170111 |
|
| RJ01 | Rejection of invention patent application after publication |