CN104178624A - Method for preparing ferronickel by using red mud and laterite-nickel ore - Google Patents
Method for preparing ferronickel by using red mud and laterite-nickel ore Download PDFInfo
- Publication number
- CN104178624A CN104178624A CN201410420809.XA CN201410420809A CN104178624A CN 104178624 A CN104178624 A CN 104178624A CN 201410420809 A CN201410420809 A CN 201410420809A CN 104178624 A CN104178624 A CN 104178624A
- Authority
- CN
- China
- Prior art keywords
- iron
- red mud
- red
- nickel ore
- nickel
- 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
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a method for preparing ferronickel by using red mud and laterite-nickel ore. Meanwhile, a novel method is provided for recovery of iron in red mud and production of ferronickel from the red mud and the laterite-nickel ore. According to the method, iron-nickel reduction products in the red mud and the laterite-nickel ore are directly utilized, and low-cost ferronickel can be provided for stainless steel smelting production, ferroalloy casting and alloy steel production. The laterite-nickel ore also contains a little of chromium, and in the production method disclosed by the invention, chromium enters the iron-nickel alloy, so that beneficial chemical components of the iron-nickel alloy are enriched. The contained iron-nickel alloy produced by the method disclosed by the invention is iron-nickel alloy with low P and S content.
Description
Technical field
The present invention relates to technical field of ferrous metallurgy, particularly a kind of method of utilizing red mud and red soil nickel ore to prepare iron-nickel alloy.
Background technology
Red mud is that bauxite extracts the residue forming after aluminum oxide, is rich in ferric oxide and presents redness in this slag, is therefore referred to as red mud.1 ton of aluminum oxide of every production, approximately produces 0.8-2.0 ton red mud.At present the whole world produces approximately 9,000 ten thousand tons of red muds every year, wherein, in state-owned nearly 3,000 ten thousand tons of generations.Red mud mainly contains Fe
2o
3, A1
2o
3, CaO, SiO
2, TiO, Na
2the components such as O, particle diameter is about 0.088-0.25mm, and fusing point is about 1200-1250 DEG C, and pH value is about 10.0-13.0.
The whole world only has the red mud of few part to be fully utilized at present, the overwhelming majority remains and is sent to that stockyard is outdoor stores up, both a large amount of soils had been taken, expend substantial contribution, easily make again a large amount of waste lyes be penetrated near farmland, cause alkalization of soils, paludification, polluted surface underground water source, harm environmental and human health impacts.
In decades, countries in the world expert has carried out a large amount of scientific researches to the comprehensive utilization of red mud.For the characteristic of red mud iron oxide content high (about 20-50%), " International Journal of Minerals, Metallurgy and Materials " the 8th phase in 2012 reported the people such as India K.Jayasankar and utilized 35kWDC plasma arc furnace, red mud with addition of appropriate flux and reductive agent is directly carried out to retailoring, one step has just made the pig iron from red mud, and the maximum recovery of iron has reached 71%.Xu Jinxiu has introduced McDowell-Willman engineering corporation of the U.S. in the 1st phase of " Guangxi metallurgy " nineteen ninety-five and had carried out red mud direct steelmaking half technological test, red mud with addition of coal dust granulate after through 1260 DEG C of prereduction semi-metals of sinter machine, make the pig iron through arc melting again, finally by alkaline oxygenated top-blown converter steelmaking, can produce 10 tons of steel daily.Trust of Hungary Centre for Industrial Development etc. has also been studied with 300kW arc melting red mud, and in the special iron making, iron level is greater than 98%.Yugoslavia utilizes 3600kW arc melting red mud, 100 tons of day throughput, and the pig iron of output is white pig iron (being graphitic pig iron on a small quantity).In China, many researchists also carry iron to red mud drastic reduction and are studied.Jia Yan etc. proposed in " University of Science & Technology, Beijing's journal " 2011 the 9th phase, and Bayer process red mud is dried with broken, the red mud after fragmentation were mixed to drastic reduction in the sealing kiln furnitures container of oxidizing atmosphere kiln or reducing atmosphere kiln with reductive agent and auxiliary agent.Cooled reducing material adopts iron grade >=90%, iron recovery >=90% of the drastic reduction iron powder obtaining after wet milling, magnetic separation.Wang Hong etc. introduced taking iron red mud and coal dust as main raw material and have made carbonaceous pelletizing in " process engineering journal " the 5th phase in 2012, by rotary hearth furnace pearl iron process, high temperature directly molten division technique prepare metallic iron.Result shows: be to heat carbonaceous pelletizing at 1.2 o'clock at 1350 DEG C, carbon-to-oxygen ratio, in gained metallic iron, the mass content of carbon, sulphur is respectively 2.72% and 0.48%, can be used as steelmaking feed and uses.Huang Zhucheng etc. have studied red mud coal-based direct reduction-magnetic separation and have separated, result shows: when reduction temperature is 1150 DEG C, recovery time is 180min, obtains concentrate iron grade and be 72.07% and the iron recovery iron ore concentrate (seeing " metal mine " the 3rd phase in 2009) that is 79.34% after magnetic separation.Chen Yongmei etc. propose (patent: CN102206743A): by pyrite and red mud blend sintering, making the iron oxide reduction in red mud is that the magnetic Z 250 of tool is reclaimed, result shows: when quality of material ratio is pyrite: red mud=1:20, and at 600 DEG C of isolated air heating 30min, products therefrom XRD after magnetic separation is characterized by Fe3O4, and after processing, in red mud, iron content is only 1.74%.From existing document, the research that the iron in red mud is reclaimed in retailoring is all only taking red mud as main raw material, and with addition of reductive agent or other additive, the product obtaining is the pig iron substantially, contains hardly other alloying element.
Stainless main chemical compositions is iron (>60%), chromium (13-23%), nickel (3-28%), as be applicable to high strength component, carriage material, the trade mark of rail vehicle, endless belt conveyor, screw bolt and nut, spring etc. is 1Cr17Ni7 stainless steel, and nickeliferous is 6.0-8.0%.
Red soil nickel ore is that nickel content is 0.7-4.0%, and iron level is 10-50%, the ore in sand form that chromium content is 0.05-2.0%.Can be by its Development and Production nickel-contained pig iron, as the substitute of electrolytic nickel and stainless steel steel scrap for the production of stainless steel, to reduce stainless smelting cost.In recent years, stainless steel manufacturer was used the ratio of such iron-nickel alloy to improve constantly, and what have even reaches more than 50%, had changed traditional stainless steel smelting raw material mix.
In existing processing red soil nickel ore technique, pyrometallurgical smelting is the advantage such as flow process is short, technical maturity because having, and has become the main flow technique of smelting laterite-nickel ores.Ferronickel-stainless steel integrated process taking red soil nickel ore as main raw material both at home and abroad, basic model is corresponding 200 series stainless steels of blast furnace process, rotary kiln-electric furnace flow process is corresponding to 300 series stainless steels.Blast furnace process is poor to red soil nickel ore adaptability, nickel and nickelic product in being difficult to produce; Rotary kiln-eaf process requires to use higher-grade red soil nickel ore, long flow path, and energy consumption is high, is therefore all further developing red soil nickel ore New Metallurgical Technology both at home and abroad.The employing electric furnace Direct Reductive Melting techniques such as Liu Zhihong are extracted iron-nickel alloy from red soil nickel ore, under top condition, in alloy, nickel grade is 22.8%, nickel recovery reaches 97.6%, Ls, Lp is respectively 0.024 and 0.145 (seeing " non-ferrous metal " (Smelting Part) the 2nd phase in 2010).Fan Xingxiang etc. adopt the molten division technique of rotary hearth furnace prereduction-electric furnace to produce iron-nickel alloy to red soil nickel ore, result shows: be 25% in flux lime proportioning, reductive agent proportioning is 3.5%, 1150 DEG C of prereduction 30min, under the condition of 1350 DEG C of molten point 15min of electric furnace, obtaining nickel massfraction is 8.68%, and nickel recovery is 97.62%, the iron-nickel alloy (seeing " Central South University's journal " (natural science edition) the 9th phase in 2012) that weight of iron mark is 86.23%.Zhang Youping has proposed the technique that red soil nickel ore " single stage method " is produced iron-nickel alloy, its principle is with addition of a certain amount of flux and coal dust by red soil nickel ore, make red soil nickel ore carbonaceous pelletizing, at a certain temperature, realize the Reduction of Oxide of nickel and iron in pelletizing, complete metallographic phase migration and cohesion simultaneously, and separate out from slag, cooling rear magnetic separation separates, and iron nickel particle is directly as the raw material (seeing " iron alloy " the 1st phase in 2012) of smelting stainless steel.
Another Lu Hong ripple was reported in " mining and metallurgy " the 3rd phase in 2012: there are some researches show, in red soil nickel ore, the reduction sequencing of each oxide compound is NiO > NiFe
2o
4> Fe
2o
3> SiO
2> MgO.Work as SiO
2/ MgO is at 1.6-2.8, and FeO content is in the time of 20%-30%, and slag and density metal difference are large, and have good mobility, are conducive to slag and metal separation, improves the rate of recovery of nickel.Some basic metal (or alkaline-earth metal) material can significantly strengthen red soil nickel ore reducing roasting, improve magnetic separation effect, improve nickel, iron grade and the rate of recovery in ferronickel concentrate.But from existing document, production and research that iron-nickel alloy is produced in red soil nickel ore retailoring are all only taking red soil nickel ore as main raw material, implement with addition of reductive agent, flux and a small amount of additive, have not been reported the research of optimizing its production technique by adding certain solid residue.
Summary of the invention
The problem existing for solving above-mentioned prior art, the object of the present invention is to provide a kind of method of utilizing red mud and red soil nickel ore to prepare iron-nickel alloy, utilize red mud, red soil nickel ore and coke powder, one or more additives in addition of bentonite, polyvinyl alcohol, spent pulping liquor, molasses waste liquid are prepared into agglomerate after evenly mixing, after dry, Direct Reductive Melting is produced the method for iron-nickel alloy, the iron of present method in can efficient recovery red mud and rationally utilize red soil nickel ore, produces cheap iron-nickel alloy is provided for stainless steel production, alloy iron castings and steel alloy.
For achieving the above object, technical scheme of the present invention is:
Utilize red mud and red soil nickel ore to prepare a method for iron-nickel alloy, described method comprises the steps:
Step 1, batching
Choose red mud, red soil nickel ore and coke powder, one or more of addition of bentonite, polyvinyl alcohol, spent pulping liquor, molasses waste liquid are pellet feed, and red mud and red soil nickel ore provide iron and nickel, and wherein the quality proportioning of red mud and red soil nickel ore is:
Red mud: red soil nickel ore=10～100:100～60;
Using mixing match is good according to the above ratio red mud and red soil nickel ore mixture as new proportioning benchmark, add coke powder and other binder component by following parts by weight:
Coke powder: 3～20, wilkinite: 0～5, polyvinyl alcohol: 0～5, spent pulping liquor: 0～3, molasses waste liquid: 0～3;
Step 2, batch mixing, briquetting, dry
The starting material of getting ready by above-mentioned proportion scale are evenly mixed, then compound is prepared into agglomerate, made agglomerate size is advisable to be suitable for mineral hot furnace retailoring, afterwards that agglomerate is dry;
Step 3, mineral hot furnace retailoring
Dried agglomerate is sent into retailoring in mineral hot furnace, agglomerate after preheating, decomposition, partial reduction under electric arc and near high-temperature zone carry out slag making, fusing, complete the process such as reduction, the separation of slag iron, finally be gathered in burner hearth and form iron-nickel alloy liquid layer and slag layer, iron-nickel alloy and slag are regularly emitted respectively from Tie Kou, cinder notch.
Further, described red mud refers to bauxite and extracts the residue forming after aluminum oxide, and described red soil nickel ore is that nickel content is the ore in sand form of 0.7%-4.0%.
Further, described spent pulping liquor is the spent pulping liquor that papermaking produces, and described molasses waste liquid is the molasses waste liquid that sugaring produces.
Further, in described step 2, described drying means adopts seasoning, or adopts heat drying.
Further, in step 3, described ore deposit thermal reduction smelting reduction temperature is controlled at 1350～1550 DEG C.
With respect to prior art, beneficial effect of the present invention is: according to the method for utilizing red mud and red soil nickel ore to produce iron-nickel alloy of the present invention, opened up a kind of novel method for the recovery of iron in red mud and by red mud and red soil nickel ore production iron-nickel alloy.Present method is good with respect to independent use red mud or red soil nickel ore reduction effect, and uses after other addition materials, has increased mobility, easily separates, and slag amount greatly reduces, and the cost that makes to reduce reduces greatly.And the spent pulping liquor using and molasses waste liquid have also been realized the waste liquid secondary recovery utilization of paper industry and sugar industry, described method is directly utilized the also original product of iron nickel in red mud and red soil nickel ore, produces iron-nickel alloy is cheaply provided for stainless steel smelting, alloy iron castings and steel alloy.Owing to also containing a small amount of chromium in red soil nickel ore, in method of the present invention is produced, chromium has also entered in iron-nickel alloy, has therefore more enriched the useful chemical composition of iron-nickel alloy.Separately, the described of method production of the present invention is the iron-nickel alloy that contains of low P, S content containing iron-nickel alloy.
The inventor is through deliberately research, find: by mineral hot furnace Direct Reductive Melting method, utilize one or more in red mud, red soil nickel ore and coke powder, addition of bentonite, polyvinyl alcohol, spent pulping liquor, molasses waste liquid, the technique of direct production iron-nickel alloy is expected to become the Perfected process overcoming the above problems.Producing iron-nickel alloy in view of the recovery of iron in red mud and red soil nickel ore can realize by retailoring, and by relatively chemical composition and the characteristic of red mud and red soil nickel ore, finds aspect some, both can form complementation.When as reasonably combined in both, can obtain more satisfactory basicity, thereby play the effect that reduces compound fusing point, can reduce or not additional flux, and make slag and density metal difference large, strengthen the mobility of metal and slag, be conducive to slag and metal separation, improve the rate of recovery of nickel; Red mud is alkalescence, contains some basic metal, can strengthen the reducing roasting of red soil nickel ore; Red mud granularity is very thin, can play the effect of binding agent in compound briquetting process.Red soil nickel ore contains nickel and chromium, has enriched the element after iron recovery in red mud, so both combinations are a kind of new approaches, and for new outlet has been found in the recycling of iron in red mud, meanwhile, also for new path has been opened up in the further exploitation of red soil nickel ore.
Brief description of the drawings
Fig. 1 is the process flow sheet that utilizes red mud and red soil nickel ore to prepare iron-nickel alloy of the present invention.
Embodiment
Below in conjunction with the drawings and the specific embodiments, the present invention program is described in further detail,
With reference to Fig. 1, below the production method of utilizing red mud and red soil nickel ore to prepare iron-nickel alloy of the present invention is further described.
Embodiment 1
Utilize red mud and red soil nickel ore to prepare a method for iron-nickel alloy, wherein, described iron-nickel alloy is produced by following processing step:
1) selected raw material is red mud, red soil nickel ore and coke powder.The main chemical compositions of red mud is: Fe
2o
332.96%, Al
2o
317.25%, CaO14.73%, SiO
212.81%, Na
2o4.06%; The main chemical compositions of red soil nickel ore: containing Fe16.62%, containing Ni1.70%, MgO17.18%, CaO0.31%, SiO
240.12%, Cr
2o
30.86%; In coke powder, contain fixed carbon more than 85%, ash: below 12.5%, sulfur is below 0.6%; Bentonitic main chemical compositions is: SiO
267%, Al
2o
313%, Fe
2o
33%, Na
2o4%, CaO3%.
2) proportioning that is (red mud: red soil nickel ore: coke powder: wilkinite)=(100:60:10:3.4) according to mass ratio is prepared burden, take red mud 10kg, red soil nickel ore 6kg, coke powder 1.0kg, wilkinite 0.34kg mixes, and with addition of suitable quantity of water, with ball press make after the agglomerate that diameter is 10mm in thermostatic drying chamber 120 DEG C dry 2 hours.
3) the dry agglomerate being made by above-mentioned steps is sent into 150kW mineral hot furnace and carry out Direct Reductive Melting, reduction temperature rises to 1350 DEG C, after insulation 5-10min, comes out of the stove, and obtains iron-nickel alloy after slagging-off.In gained iron-nickel alloy, contain Fe92.72%, Ni2.88%, Cr0.5%, C2.80, other is 1.10% years old.
Embodiment 2
Utilize red mud and red soil nickel ore to prepare a method for iron-nickel alloy, wherein, described iron-nickel alloy is produced by following processing step:
1) selected raw material is red mud, red soil nickel ore, coke powder, wilkinite and polyvinyl alcohol.Wherein red mud, red soil nickel ore coke powder and bentonitic composition are identical with embodiment 1;
2) the quality proportioning that is (red mud: red soil nickel ore: coke powder: wilkinite: polyvinyl alcohol)=(100:100:12:3:1) according to mass ratio is prepared burden, take the each 10kg of red mud and red soil nickel ore, coke powder 1.2kg, wilkinite 0.3kg, polyvinyl alcohol 0.1kg evenly mixes, and with addition of suitable quantity of water, make seasoning in flowing air after agglomerate with ball press.
3) the dry agglomerate being made by above-mentioned steps is sent into 150kW mineral hot furnace and carry out Direct Reductive Melting, reduction temperature rises to 1550 DEG C, after insulation 5-10min, comes out of the stove, and obtains iron-nickel alloy after slagging-off.In gained iron-nickel alloy, contain Fe91.40%, Ni3.91%, Cr0.68%, C3.06%, other is 0.96% years old.
Embodiment 3
Utilize red mud and red soil nickel ore to prepare a method for iron-nickel alloy, wherein, described iron-nickel alloy is produced by following processing step:
1) selected raw material is the raw materials such as red mud, red soil nickel ore, coke powder and spent pulping liquor, and each material composition is identical with embodiment 1.
2) the quality proportioning that is (red mud: red soil nickel ore: coke powder: spent pulping liquor)=(10:100:7.3:1.3) according to mass ratio is prepared burden, take red mud 1kg, red soil nickel ore 10kg, coke powder 0.73kg, spent pulping liquor 0.13kg mixes, and with addition of suitable quantity of water, make seasoning in fluidizing air after agglomerate with ball press.
3) the dry agglomerate being made by above-mentioned steps is sent into 150kW mineral hot furnace and carry out Direct Reductive Melting, reduction temperature rises to 1550 DEG C, after insulation 5-10min, comes out of the stove, and obtains iron-nickel alloy after slagging-off.In gained iron-nickel alloy, contain Fe86.25%, Ni7.74%, Cr1.61%, C3.43%, other is 0.97% years old.
Embodiment 4
Utilize red mud and red soil nickel ore to prepare a method for iron-nickel alloy, wherein, described iron-nickel alloy is produced by following processing step:
1) selected raw material is red mud, red soil nickel ore, coke powder and wilkinite.The main chemical composition of each raw material is as shown in table 1:
The each raw material main chemical of table 1 (wt%)
2) proportioning that is (red mud: red soil nickel ore: coke powder: wilkinite)=(100:100:12:4) according to mass ratio is prepared burden, mix, and with addition of suitable quantity of water, make after the pelletizing that diameter is about 15mm through rotary kiln drying with balling disc.
3) the dry pelletizing being made by above-mentioned steps is sent into 9000kw mineral hot furnace and carry out Direct Reductive Melting, reduction temperature is about 1450-1550 DEG C, obtains the iron-nickel alloy of slag and metal separation.In gained iron-nickel alloy, contain Fe87.97%, Ni7.14%, Cr0.89%, C3.03%, P0.018%, S0.031%.
Embodiment 5
Ni-hard cast iron adds a certain amount of nickel and chromium on the basis of ordinary white cast iron, obtains hardness high and martensitic matrix that wear resisting property is good and the mixed structure of carbide.The wear resistance of ni-hard cast iron is significantly better than ordinary white cast iron, is widely used in industries such as mining, metallurgy, cement, electric power, potteries.Foundry goods in the present embodiment is the abrading-ball that bauxite ore ball mill is used.100 millimeters of foundry goods diameters.In order to obtain tiny solidified structure, higher hardness and wear resistance, mold material adopts cast steel.In order to improve work-ing life and the surface quality of continuous castings of casting mold, scribble resistant to elevated temperatures aluminum oxide coating layer at die cavity inwall.
Utilize red mud and red soil nickel ore to prepare a method for iron-nickel alloy, wherein, selected raw material is red mud, red soil nickel ore, coke powder and molasses waste liquid.Wherein the composition of red mud, red soil nickel ore, coke powder is identical with embodiment 1.The proportioning that is (red mud: red soil nickel ore: coke powder: molasses waste liquid)=(100:75:10.5:1.2) according to mass ratio is prepared burden, briquetting, obtain iron-nickel alloy according to technique described in embodiment 1, then enter in medium-frequency induction furnace by ladle metaideophone, temperature is adjusted to 1500 DEG C, add and be preheated in advance bolarious ferrochrome, regulate the composition of alloy to be: Ni3.0%, Cr1.3%, C3.2%, all the other constituent contents are controlled at Mn≤2.0%, Si≤0.8%, P≤0.30%, S≤0.15%.Again the teeming temperature of alloy is adjusted to 1485 DEG C and pours into a mould, obtain the abrading-ball foundry goods being shaped.
Principle of the present invention is: by red mud, red soil nickel ore and coke powder, one or more in addition of bentonite, polyvinyl alcohol, spent pulping liquor, molasses waste liquid are prepared into agglomerate after evenly mixing, after dry, carry out mineral hot furnace retailoring, reduction temperature is controlled at 1350～1550 DEG C, obtains iron-nickel alloy.Utilize the direct-reduction of red mud and red soil nickel ore, in the iron reclaiming in red mud, make nickeliferous higher iron-nickel alloy, produce for stainless steel production, alloy iron castings and steel alloy.
According to the method for utilizing red mud and red soil nickel ore to produce iron-nickel alloy of the invention described above, for the recovery of iron in red mud with produce iron-nickel alloy with red mud and red soil nickel ore a kind of novel method is provided, directly utilize the also original product of iron nickel in red mud and red soil nickel ore, produce iron-nickel alloy is cheaply provided for stainless steel smelting, alloy iron castings and steel alloy.Owing to also containing a small amount of chromium in red soil nickel ore, in method of the present invention is produced, chromium has also entered in iron-nickel alloy, has therefore more enriched the useful chemical composition of iron-nickel alloy.The described of method production of the present invention is the iron-nickel alloy that contains of low P, S content containing iron-nickel alloy.
The inventor is through deliberately research, find: by mineral hot furnace Direct Reductive Melting method, utilize red mud, red soil nickel ore and coke powder, one or more in addition of bentonite, polyvinyl alcohol, spent pulping liquor, molasses waste liquid, the technique of direct production iron-nickel alloy is expected to become the Perfected process overcoming the above problems.Producing iron-nickel alloy in view of the recovery of iron in red mud and red soil nickel ore can realize by retailoring, and by relatively chemical composition and the characteristic of red mud and red soil nickel ore, finds aspect some, both can form complementation.When as reasonably combined in both, can obtain more satisfactory basicity, thereby play the effect that reduces compound fusing point, can reduce or not additional flux, and make slag and density metal difference large, strengthen the mobility of metal and slag, be conducive to slag and metal separation, improve the rate of recovery of nickel; Red mud is alkalescence, contains some basic metal, can strengthen the reducing roasting of red soil nickel ore; Red mud granularity is very thin, can play the effect of binding agent in compound briquetting process.Red soil nickel ore contains nickel and chromium, has enriched the element after iron recovery in red mud, so both combinations are a kind of new approaches, for new outlet has been found in the recycling of iron in red mud, simultaneously also for new path has been opened up in the further exploitation of red soil nickel ore.
The above, be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, and any variation of expecting without creative work or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (5)
1. utilize red mud and red soil nickel ore to prepare a method for iron-nickel alloy, it is characterized in that, described method comprises the steps:
Step 1, batching
Choose red mud, red soil nickel ore and coke powder, one or more of addition of bentonite, polyvinyl alcohol, spent pulping liquor, molasses waste liquid are pellet feed, and red mud and red soil nickel ore provide iron and nickel, and wherein the quality proportioning of red mud and red soil nickel ore is:
Red mud: red soil nickel ore=10～100:100～60;
Using mixing match is good according to the above ratio red mud and red soil nickel ore mixture as new proportioning benchmark, add coke powder and other binder component by following parts by weight:
Coke powder: 3～20, wilkinite: 0～5, polyvinyl alcohol: 0～5, spent pulping liquor: 0～3, molasses waste liquid: 0～3;
Step 2, batch mixing, briquetting, dry
The starting material of getting ready by above-mentioned proportion scale are evenly mixed, then compound is prepared into agglomerate, made agglomerate size is advisable to be suitable for mineral hot furnace retailoring, afterwards that agglomerate is dry;
Step 3, mineral hot furnace retailoring
Dried agglomerate is sent into retailoring in mineral hot furnace, agglomerate after preheating, decomposition, partial reduction under electric arc and near high-temperature zone carry out slag making, fusing, complete the process such as reduction, the separation of slag iron, finally be gathered in burner hearth and form iron-nickel alloy liquid layer and slag layer, iron-nickel alloy and slag are regularly emitted respectively from Tie Kou, cinder notch.
2. a kind of method of utilizing red mud and red soil nickel ore to prepare iron-nickel alloy according to claim 1, it is characterized in that, described red mud refers to bauxite and extracts the residue forming after aluminum oxide, and described red soil nickel ore is that nickel content is the ore in sand form of 0.7%-4.0%.
3. a kind of method of utilizing red mud and red soil nickel ore to prepare iron-nickel alloy according to claim 1, is characterized in that, described spent pulping liquor is the spent pulping liquor that papermaking produces, and described molasses waste liquid is the molasses waste liquid that sugaring produces.
4. a kind of method of utilizing red mud and red soil nickel ore to prepare iron-nickel alloy according to claim 1, is characterized in that, in described step 2, described drying means adopts seasoning, or adopts heat drying.
5. a kind of method of utilizing red mud and red soil nickel ore to prepare iron-nickel alloy according to claim 1, is characterized in that, in step 3, described ore deposit thermal reduction smelting reduction temperature is controlled at 1350～1550 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410420809.XA CN104178624B (en) | 2014-08-25 | A kind of method utilizing red mud and lateritic nickel ore to prepare iron-nickel alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410420809.XA CN104178624B (en) | 2014-08-25 | A kind of method utilizing red mud and lateritic nickel ore to prepare iron-nickel alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104178624A true CN104178624A (en) | 2014-12-03 |
| CN104178624B CN104178624B (en) | 2017-01-04 |
Family
ID=
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105177277A (en) * | 2015-08-04 | 2015-12-23 | 江苏省冶金设计院有限公司 | Comprehensive treatment method of red mud and laterite-nickel ore |
| CN105734278A (en) * | 2016-03-17 | 2016-07-06 | 江苏省冶金设计院有限公司 | Treatment method of laterite-nickel ores |
| CN106148699A (en) * | 2015-04-16 | 2016-11-23 | 广西大学 | Utilize the method that red mud and lateritic nickel ore prepare iron-nickel alloy by-product activity mineral hot furnace grain slag |
| CN106431156A (en) * | 2016-10-24 | 2017-02-22 | 张聪聪 | High-performance cement and preparation method thereof |
| CN107200478A (en) * | 2016-03-18 | 2017-09-26 | 广西大学 | Method of glass ceramics of Color tunable and products thereof and application are prepared using iron-nickel alloy Water Quenching Slag |
| WO2017207684A1 (en) | 2016-06-02 | 2017-12-07 | Knut Henriksen | A method for converting waste material from sulphide ore based nickel refining into nickel pig iron |
| CN108034811A (en) * | 2017-12-26 | 2018-05-15 | 江苏省冶金设计院有限公司 | A kind of method for producing metallic nickel iron powder and diopside matter ground-slag |
| CN109207736A (en) * | 2018-11-12 | 2019-01-15 | 中国安全生产科学研究院 | A method of utilizing chromium-contained aluminum mud and red mud production ferrochrome and aluminium oxide |
| CN111635997A (en) * | 2020-06-12 | 2020-09-08 | 中南大学 | Method for smelting ferronickel alloy by directly reducing and smelting laterite-nickel ore with hydrogen |
| CN111647793A (en) * | 2020-06-30 | 2020-09-11 | 广西大学 | Method for preparing nickel hard I-type cast iron by utilizing red mud to efficiently separate iron slag |
| CN114657303A (en) * | 2022-05-24 | 2022-06-24 | 山西建龙实业有限公司 | Method for synergistically utilizing high-iron red mud and scrap steel |
| CN114717411A (en) * | 2022-04-01 | 2022-07-08 | 巩义市董氏模板有限公司 | Method for producing steel by using waste low-grade ore as raw material instead of iron-rich ore |
| CN115261638A (en) * | 2022-07-28 | 2022-11-01 | 西南科技大学 | Method for preparing ferronickel and iron ore concentrate by using high-magnesium laterite-nickel ore and red mud in synergy mode |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101353708A (en) * | 2008-09-11 | 2009-01-28 | 张家港浦项不锈钢有限公司 | Nickel iron smelting process with nickel oxide ore and stainless steel production wastes as raw materials |
| CN101538632A (en) * | 2009-02-05 | 2009-09-23 | 丁家伟 | Preparation process and device of sponge iron |
| CN101967570A (en) * | 2010-10-11 | 2011-02-09 | 大同市和合新能源科技有限责任公司 | Method for producing ferro-nickel alloy from red soil nickel ore |
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101353708A (en) * | 2008-09-11 | 2009-01-28 | 张家港浦项不锈钢有限公司 | Nickel iron smelting process with nickel oxide ore and stainless steel production wastes as raw materials |
| CN101538632A (en) * | 2009-02-05 | 2009-09-23 | 丁家伟 | Preparation process and device of sponge iron |
| CN101967570A (en) * | 2010-10-11 | 2011-02-09 | 大同市和合新能源科技有限责任公司 | Method for producing ferro-nickel alloy from red soil nickel ore |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106148699B (en) * | 2015-04-16 | 2019-04-26 | 广西大学 | The method for preparing iron-nickel alloy by-product activity mineral hot furnace granulated slag using red mud and lateritic nickel ore |
| CN106148699A (en) * | 2015-04-16 | 2016-11-23 | 广西大学 | Utilize the method that red mud and lateritic nickel ore prepare iron-nickel alloy by-product activity mineral hot furnace grain slag |
| CN105177277A (en) * | 2015-08-04 | 2015-12-23 | 江苏省冶金设计院有限公司 | Comprehensive treatment method of red mud and laterite-nickel ore |
| CN105734278A (en) * | 2016-03-17 | 2016-07-06 | 江苏省冶金设计院有限公司 | Treatment method of laterite-nickel ores |
| CN107200478B (en) * | 2016-03-18 | 2021-05-28 | 广西大学 | Method for preparing color-adjustable glass ceramic by using iron-nickel alloy water-quenched slag, product and application thereof |
| CN107200478A (en) * | 2016-03-18 | 2017-09-26 | 广西大学 | Method of glass ceramics of Color tunable and products thereof and application are prepared using iron-nickel alloy Water Quenching Slag |
| WO2017207684A1 (en) | 2016-06-02 | 2017-12-07 | Knut Henriksen | A method for converting waste material from sulphide ore based nickel refining into nickel pig iron |
| CN106431156B (en) * | 2016-10-24 | 2018-12-14 | 广东鸿丰水泥有限公司 | High-performance cement and preparation method thereof |
| CN106431156A (en) * | 2016-10-24 | 2017-02-22 | 张聪聪 | High-performance cement and preparation method thereof |
| CN108034811A (en) * | 2017-12-26 | 2018-05-15 | 江苏省冶金设计院有限公司 | A kind of method for producing metallic nickel iron powder and diopside matter ground-slag |
| CN109207736A (en) * | 2018-11-12 | 2019-01-15 | 中国安全生产科学研究院 | A method of utilizing chromium-contained aluminum mud and red mud production ferrochrome and aluminium oxide |
| CN111635997A (en) * | 2020-06-12 | 2020-09-08 | 中南大学 | Method for smelting ferronickel alloy by directly reducing and smelting laterite-nickel ore with hydrogen |
| CN111647793A (en) * | 2020-06-30 | 2020-09-11 | 广西大学 | Method for preparing nickel hard I-type cast iron by utilizing red mud to efficiently separate iron slag |
| CN114717411A (en) * | 2022-04-01 | 2022-07-08 | 巩义市董氏模板有限公司 | Method for producing steel by using waste low-grade ore as raw material instead of iron-rich ore |
| CN114657303A (en) * | 2022-05-24 | 2022-06-24 | 山西建龙实业有限公司 | Method for synergistically utilizing high-iron red mud and scrap steel |
| CN115261638A (en) * | 2022-07-28 | 2022-11-01 | 西南科技大学 | Method for preparing ferronickel and iron ore concentrate by using high-magnesium laterite-nickel ore and red mud in synergy mode |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105838838B (en) | Method for preparing pure steel by coal gas direct reduction one-step method | |
| CN101538629A (en) | Process and device for smelting chromium irons and chromium-containing molten iron by using chromium ore powder | |
| CN105132674B (en) | The method for preparing ferrochrome | |
| CN102337408B (en) | Two-step reduction method for recycling stainless steel scales | |
| CN101967571B (en) | Method for using red-soil nickel ore to produce nickel-iron alloy in tunnel kiln-electric furnace | |
| CN105018722A (en) | Method for separating and reducing iron powder from refractory mineral, complex ore and iron-containing waste materials | |
| CN102634622A (en) | Method for reducing and separating metallic irons by using refractory ores, complex ores and iron-containing wastes | |
| CN104928428B (en) | Molten point of recovery method of the coal dust of low-grade iron resource | |
| CN103103310A (en) | Vanadium extraction cold pressing block and preparation method and applications thereof and vanadium extraction method | |
| CN101418388B (en) | Process for producing nickel iron in rotary kiln-blast furnace by using laterite nickle mine | |
| CN106086428B (en) | A kind of method using non-ferrous metal metallurgy slag | |
| CN101967570A (en) | Method for producing ferro-nickel alloy from red soil nickel ore | |
| CN104018008A (en) | Method for producing nickel iron by laterite-nickel ore flash furnace reduction smelting | |
| CN104630459B (en) | A kind of self-heating for being applied to induction furnace casting contains carbon ball/block | |
| CN101538626A (en) | Method for directly producing nickel-bearing pig iron in rotary kilns by using laterite-nickel | |
| CN106319124A (en) | Preparing method for ferrochrome silicon alloy | |
| CN101654369A (en) | Method for preparing Fe-Sialon fire-proof raw materials | |
| CN106148679A (en) | A kind of Application way of the lean josephinite of high aluminium profiles | |
| CN106467935A (en) | A kind of copper ashes and the Application way of carbide slag | |
| CN103805729B (en) | A kind of method adopting rotary hearth furnace to produce low-sulfur conversion pig | |
| CN106544456A (en) | A kind of method that iron produces coverter pig cold pressing block in utilization blast furnace granulated slag | |
| CN105925744B (en) | The method of Dust of Iron And Steel Works production pearl iron is utilized under a kind of low temperature | |
| CN101654373A (en) | Method for preparing Fe-Sialon spinel complex phase fire-proof material | |
| CN104178624B (en) | A kind of method utilizing red mud and lateritic nickel ore to prepare iron-nickel alloy | |
| CN100494444C (en) | Process of producing Ni-Cr-Fe alloy in ore-smelting furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |