CN101353751A - Vanadium-silicon alloy, and preparation and application thereof - Google Patents
Vanadium-silicon alloy, and preparation and application thereof Download PDFInfo
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- CN101353751A CN101353751A CNA2008102125082A CN200810212508A CN101353751A CN 101353751 A CN101353751 A CN 101353751A CN A2008102125082 A CNA2008102125082 A CN A2008102125082A CN 200810212508 A CN200810212508 A CN 200810212508A CN 101353751 A CN101353751 A CN 101353751A
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- YZDXXKWDPFFFEI-UHFFFAOYSA-N CCCCC1C(CC2=CC=CC2)CCC1 Chemical compound CCCCC1C(CC2=CC=CC2)CCC1 YZDXXKWDPFFFEI-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention provides a V-Si alloy, a preparation method and an application method thereof. The preparation method of the V-Si alloy comprises the following steps: rough vanadium slag is smashed and magnetic separated to obtain fine vanadium slag containing 15 to 20 percent of V2O5 and 22 to 30 percent of TFe, and the fine vanadium slag and silicon material and a reducing agent are used as the materials and evenly dosed according to a certain proportion, and then mixed pellets are obtained; the obtained pellets and a slag modifier agent are reduced by melting in an ore-smelting electric furnace for 150 to 180 min, with the final temperature of 1630 to 1680 DEG C, and finally the V-Si alloy with 8 to 15 percent of vanadium and 30 to 50 percent of vanadium silicon is obtained. By using the V-Si alloy of the invention as the alloying material for the smelting alloy steel containing vanadium and silicon, the technological process is shortened, and the production cost and the energy consumption are reduced.
Description
Technical field
The present invention relates to metallurgical technology field, more particularly, relate to a kind of vanadium-silicon alloy and methods for making and using same thereof.
Background technology
Contain vanadium (V) siliceous (Si) steel alloy owing to have good pressure resistance energy and telescopicing performance, so range of application is more and more wider, it is mainly used in multiple fields such as Properties of Heavy Rail Steel By, transport line steel, auto truck beam.In the prior art, the vanadium series alloy has iron-based series and non-iron-based series two classes, accounting for most is the vanadium-containing alloy of iron-based series, and wherein maximum is vanadium iron, and the vanadium iron base alloy that contains that develops at present also has vanadium silico-calcium, vanadium ferromanganese, ferrovanadium nitride, vanadium titanium silicon etc.; The vanadium-containing alloy of non-iron-based series mainly contains vananum, vanadium nitrogen, vanadium carbon alloy etc.At present mainly be to utilize vanadium iron, two kinds of ferrous alloys of ferrosilicon to be used as containing the alloying material of vanadium silicon-containing alloy steel, but production cost is higher.
In the prior art, existing is the relevant report of development with the production of alloy about vanadium.For example, application number is 200710202626.0 patent of invention, has mainly introduced a kind of alloying material of containing vanadium, manganese alloy steel and preparation method thereof that is used to smelt.At present, the production technique that contains vanadium silicon-containing alloy steel mainly may further comprise the steps: blast-melted → hot metal pretreatment → converter steelmaking → deoxidation alloying → refining → continuous casting → rolling, wherein, two kinds of alloys of vanadium iron and ferrosilicon mainly are used in the deoxidation alloying step, that is mainly be vanadium iron and ferrosilicon to be used for smelting as independent raw material contain vanadium silicon-containing alloy steel.
Yet, vanadium silicon (SiV) alloying technology technology but is not reported as the alloying that the substitute of vanadium iron, ferrosilicon is used to contain the vanadium silicon containing steel in alloy production industry and in steel production industry.
Summary of the invention
A kind of alloying material that contains the vanadium silicon containing steel that provides is provided, and the complete processing that contains the alloying material of vanadium silicon containing steel, to replace expensive ferro-vanadiumization, reduction contains the production cost of vanadium silicon-containing alloy steel, thereby forms the complete set technology of many metals comprehensive utilizations and alloying.
The invention provides a kind of vanadium-silicon alloy, by weight percentage, this vanadium-silicon alloy contains the vanadium of 8%-15%, silicon and Fe and the unavoidable impurities element of 30%-50%.
The invention provides a kind of method for preparing vanadium-silicon alloy, the method comprising the steps of: first vanadium slag is obtained smart vanadium slag by crushing-magnetic selection, the smart vanadium slag of gained and silicon materials and reductive agent are prepared burden according to a certain percentage as raw material and mix, obtain the batch mixing pelletizing; Gained pelletizing and slag supplying agent are carried out melting and reducing by ore-smelting furnace, and the control terminal temperature obtains containing the vanadium-silicon alloy of the silicon of the vanadium of 8%-15% and 30%-50%.
According to the present invention, first vanadium slag can obtain to contain the V of 15%-20% by the crushing-magnetic selection technology
2O
5Smart vanadium slag with the TFe of 22%-30%.Silicon materials can be that silicone content is silica or the mountain sand of 92%-98%.Reductive agent can be coke or coal dust.By percentage to the quality, the consumption of smart vanadium slag accounts for the 35%-50% of raw material total mass, and the consumption of silicon materials accounts for the 25%-35% of raw material total mass, and the consumption of reductive agent accounts for the 20%-30% of raw material total mass.Slag supplying agent is the auxiliary material that accounts for the fluorite of the lime of 5%-10% of pelletizing total mass and 3%-5%.According to the present invention, the time of gained pelletizing and slag supplying agent being carried out melting and reducing is 150 minutes-180 minutes, and terminal temperature is 1630 ℃-1680 ℃.
The invention provides a kind of application method of vanadium-silicon alloy, that is, vanadium-silicon alloy is applied to the alloying of molten steel, its consumption is the 0.8%-1.3% of molten steel total mass.
Vanadium-silicon alloy by prepared in accordance with the method for the present invention can be as the alloying material that contains the vanadium silicon containing steel in STEELMAKING PRODUCTION, can be directly used in the alloying material that contains vanadium silicon-containing alloy steel thus, thereby shortened technical process, reduced production cost, reduced energy consumption, and metal loss is little.Utilize the alloying material of vanadium-silicon alloy (SiV) as vanadium steel, production cost is lower, the price of vanadium per ton is lower by 35%～40% than the price of vanadium per ton in the ferro-vanadium in the vanadium-silicon alloy, thereby has higher researching value, and good market outlook are arranged.
Description of drawings
Fig. 1 is the technical process according to the preparation vanadium-silicon alloy of the embodiment of the invention.
Embodiment
In order to understand the present invention better, the present invention is explained in detail below in conjunction with embodiment.
According to the present invention, the silicon (Si) (all by mass percentage) of the vanadium that mainly consists of 8%-15% (V) of vanadium-silicon alloy and 30%-50%, remaining consists of iron (Fe) and inevitable small amount of impurities element, for example phosphorus (P) etc.
Below, the method for preparing vanadium-silicon alloy according to of the present invention is described with reference to Fig. 1.
At first, first vanadium slag is carried out the crushing-magnetic selection deironing by grinding magnetic separator, obtain smart vanadium slag.According to the present invention, first vanadium slag can be for well known to a person skilled in the art vanadium slag just.In certain embodiments of the invention, adopted the first vanadium slag that obtains behind the vanadium extraction by converter blowing.The smart vanadium slag of gained mainly consist of Vanadium Pentoxide in FLAKES (V
2O
5) and full iron (TFe is mainly the oxide compound of iron), secondly also may contain silicon-dioxide (SiO
2), manganese oxide (MnO), Armco magnetic iron (MFe mainly is a metallic iron) and other impurity (for example phosphorus (P) etc.).According to the present invention, by percentage to the quality, preferably contain the V of 15%-20% in the smart vanadium slag of gained
2O
5TFe with 22%-30%.According to the present invention, the content of MFe in smart vanadium slag is low more good more, and its mass percent preferably is controlled at below 10%.
Then, the smart vanadium slag of gained and silicon materials and reductive agent are prepared burden according to a certain percentage as raw material, the material for preparing is sent into mixer mix, obtain mixing pelletizing.Wherein, by percentage to the quality, the consumption of smart vanadium slag accounts for the 35%-50% of raw material total mass, and the consumption of silicon materials accounts for the 25%-35% of raw material total mass, and the consumption of reductive agent accounts for the 20%-30% of raw material total mass.In the present invention, silicon materials can be silica or mountain sand, and preferably, silicon materials are that silicone content is silica or the mountain sand of 92%-98%.Reductive agent can be coke or coal dust.
Then, batch mixing pelletizing and slag supplying agent are carried out melting and reducing by ore-smelting furnace, the control terminal temperature promptly obtains vanadium-silicon alloy and slag after coming out of the stove.Specifically, the batch mixing pelletizing is sent into ore-smelting furnace smelt, the while with addition of slag supplying agent, is carried out melting and reducing in stove; Slag is more abundant to reduce deeply in order to make, and suppresses the foamed phenomenon that the slag reaction acutely causes, treats that furnace charge melts clear back and add reductive agent in stove, and the control tapping temperature promptly obtains vanadium-silicon alloy and slag after coming out of the stove.In the present invention, can adopt the semi-enclosed ore-smelting furnace of 3200kVA, the recovery time was controlled at 150 minutes-180 minutes, and terminal temperature is controlled at 1630 ℃-1680 ℃.Slag supplying agent can be the auxiliary material of lime and/or silica; More particularly, slag supplying agent can be the auxiliary material that accounts for the fluorite of the lime of 8%-15% of pelletizing total mass and 3%-5%.Here, be with addition of lime during the ore-smelting furnace melting and reducing as auxiliary main effect of expecting, guarantee to have certain basicity of slag (CaO/SiO
2), reduce phosphorus (P), sulphur (S) is reduced and enter vanadium-silicon alloy; Is to adjust slag with addition of fluorite as auxiliary main effect of expecting, makes slag have certain fluidity, to promote reaction and to come out of the stove smoothly.In addition, reduce deeply more fully in order to make slag, and suppress the foamed phenomenon that the slag reaction acutely causes, can treat in stove, to add reductive agent after furnace charge melts clearly; In the present invention, can treat that the molten clear back of furnace charge adds 0.05%～0.1% coke or coal dust of furnace charge total amount in stove.
By above step, can be contained the vanadium-silicon alloy of the Si of the V of 8%-15% and 30%-50% by weight percentage.Certainly, also contain iron (Fe) in the vanadium-silicon alloy, and contain the small amount of impurities element inevitably, for example phosphorus (P) etc.
Can replace expensive vanadium iron, ferro-siliconization to contain the alloying material of vanadium silicon containing steel as in the STEELMAKING PRODUCTION, thereby reduce the manufacturing cost of vanadium steel effectively according to vanadium-silicon alloy of the present invention.Specifically, the vanadium-silicon alloy that will make according to the method for Fig. 1 carries out alloying as raw material to molten steel, and wherein, the consumption of vanadium-silicon alloy is the 0.8%-1.3% of molten steel total mass in the alloying, contains vanadium silicon-containing alloy steel thereby make.Utilize the alloying material of vanadium-silicon alloy (SiV) as vanadium steel, production cost is lower, the price of vanadium per ton is lower by 35%～40% than the price of vanadium per ton in the ferro-vanadium in the vanadium-silicon alloy, thereby has higher researching value, and good market outlook are arranged.
Below, come the present invention is described in more detail in conjunction with embodiments of the invention with reference to the accompanying drawings, so that those skilled in the art understands the present invention better.
Embodiment 1
At first, converter is contained V
2O
5Be that 14.48% first vanadium slag carries out fine grinding and iron removal by magnetic separation by grinding magnetic separator, obtain containing V
2O
515%, TFe30%, SiO
214.78%, the smart vanadium slag of MnO7.24%, MFe8.7% and other impurity (above all be weight percentage).Then, (granularity is 3mm-10mm with smart vanadium slag, the coke of mentioned component and content, fixed carbon (C) content is 84%) and silicone content be that 98% silica is prepared burden in 7: 7: 6 ratio of mass ratio, and the material that will prepare is sent into mixer and is mixed, then by the semi-enclosed ore-smelting furnace melting and reducing of 3200kVA, in melting and reducing, in stove, be 8% lime and 3% fluorite with addition of the furnace charge total amount, thereby make when guaranteeing basicity of slag, make slag have certain fluidity, and promote reaction and come out of the stove smoothly; 0.08% and the granularity that account for the furnace charge total amount are added in the molten clear back of furnace charge in stove be the coke of 3mm-10mm, so that slag reduction deeply more fully suppresses the foamed phenomenon that the slag reaction acutely causes simultaneously.To be controlled at 180 minutes (min) recovery time, terminal temperature is controlled at 1658 ℃, promptly obtains vanadium-silicon alloy and slag after coming out of the stove.
After testing, the weight percent of the vanadium-silicon alloy composition of gained is: 8%V, 50%Si, 5.43%Mn, 0.68%C, 0.014%S, 0.106%P, surplus is Fe.Again vanadium-silicon alloy is replaced ferro-vanadium and ferro-silicon to be applied to the Properties of Heavy Rail Steel By hydration aurification of U75V (R), other alloy adds classification and add-on is carried out by the operating duty of prior art: the vanadium-silicon alloy amount of adding is 1.3% of a molten steel total mass, the main component of the molten steel after the alloying is iron (Fe), other composition is: 0.010%V, 0.64%Si, 0.66%C, 0.84%Mn, 0.011%S and 0.013%P (above all be weight percentage) have reached the composition requirement of satisfying this steel grade.
Embodiment 2
At first, converter is contained V
2O
5Be that 15.8% first vanadium slag carries out fine grinding and iron removal by magnetic separation by grinding magnetic separator, obtain containing V
2O
516.2%, TFe29.7%, SiO
214.8%, the smart vanadium slag of MnO7.56%, MFe9.1% and other impurity (above all be weight percentage).Then, (granularity is 3mm-10mm with smart vanadium slag, the coke of mentioned component and content, fixed carbon (C) content is 84%) and silicone content be that 96.63% silica is prepared burden in 12: 8: 5 ratio of mass ratio, and the material that will prepare is sent into mixer and is mixed, then by the semi-enclosed ore-smelting furnace melting and reducing of 3200kVA, in melting and reducing, in stove, be 5% lime and 4% fluorite with addition of the furnace charge total amount; 0.05% and the granularity that account for the furnace charge total amount are added in the molten clear back of furnace charge in stove be the coke of 3mm-7mm, will the recovery time be controlled at 170min, and terminal temperature is controlled at 1630 ℃, promptly obtains vanadium-silicon alloy and slag after coming out of the stove.
After testing, the weight percent of the vanadium-silicon alloy composition of gained is: 9.2%V, 45.74%Si, 5.93%Mn, 0.57%C, 0.018%S, 0.127%P, surplus is Fe.Again vanadium-silicon alloy is replaced ferro-vanadium and ferro-silicon to be applied to the Properties of Heavy Rail Steel By hydration aurification of U75V (R), other alloy adds classification and add-on is carried out by the operating duty of prior art: the vanadium-silicon alloy amount of adding is 1.25% of a molten steel total mass, molten steel after the alloying mainly become Fe, other composition is: 0.010%V, 0.58%Si, 0.84%Mn, 0.66%C, 0.011%S and 0.013%P (above all be weight percentage), all the other are Fe, have reached the composition requirement of satisfying this steel grade.
Embodiment 3
At first, V will be obtained containing behind the vanadium extraction by converter blowing
2O
5Be that 19.42% first vanadium slag carries out the crushing-magnetic selection deironing by grinding magnetic separator, obtain containing V
2O
520%, the smart vanadium slag of TFe22%, MnO6.58% and other impurity.Then, (granularity is 1mm-3mm with the smart vanadium slag of mentioned component and content and coal dust coke, fixation of C content is 82%) and silicone content be that 92% mountain sand is prepared burden in 2: 1: 1 ratio of mass ratio, the material for preparing is sent into mixer to mix, then by the semi-enclosed ore-smelting furnace melting and reducing of 3200kVA, in melting and reducing, be that the fluorite of 10% lime and 5% is made auxiliary material with addition of the furnace charge total amount; 0.1% and the granularity that account for the furnace charge total amount are added in the molten clear back of furnace charge in stove be the coal dust of 1mm-3mm, will be controlled at 150min the recovery time, terminal temperature is come out of the stove in the time of 1680 ℃, promptly obtains vanadium-silicon alloy and reducing slag after coming out of the stove.
After testing, the weight percent of the vanadium-silicon alloy composition of gained is: 15%V, 30%Si, 6.32%Mn, 0.93%C, 0.017%S, 0.12%P, surplus is Fe.Vanadium-silicon alloy is replaced ferro-vanadium and ferro-silicon to be applied to smelt under the existing processing condition 34Mn2V oxygen cylinder molten steel alloying, other alloy adds classification and add-on is carried out by the operating duty of prior art again; The vanadium-silicon alloy amount that adds is 0.8% of a molten steel total mass, after the alloying main component be iron (Fe), other molten steel composition is: 0.09%V, 0.28%Si, 0.28%C, 1.52%Mn, 0.009%S and 0.011%P (above all by weight percentage) have reached the composition requirement of satisfying this steel grade.
By above as can be seen, according to the method for preparing vanadium-silicon alloy of the present invention, can not only ensure the effective extraction and the recovery of vanadium (V), iron (Fe) element, and have that technical process is short, energy consumption is low, cost is low, characteristics such as metal loss is little, particularly the loss of vanadium (V) and iron (Fe) is little, and the rate of recovery of vanadium (V), iron (Fe) can reach more than 90%; Also the iron in the vanadium slag (Fe), manganese valuable elements such as (Mn) can be done further to recycle simultaneously.
In addition, vanadium iron and ferrosilicon that utilization vanadium-silicon alloy according to the present invention can be used as costliness under the existing processing condition of raw material replacement carry out alloying to molten steel, the alloy consumption is the 0.8%-1.3% of molten steel total mass, the molten steel composition of alloying reaches the performance indication requirement of satisfying steel grade, this technology can reduce the 36%-40% of alloying cost, thereby reduced the production cost that contains vanadium silicon-containing alloy steel effectively, thereby created a new road for extensive electric furnace production of this type of raw material and comprehensive utilization.
Claims (11)
1, a kind of vanadium-silicon alloy is characterized in that: by weight percentage, described vanadium-silicon alloy contains the vanadium of 8%-15% and the silicon of 30%-50%, and all the other are Fe and unavoidable impurities.
2, a kind of method for preparing vanadium-silicon alloy may further comprise the steps:
First vanadium slag is obtained smart vanadium slag by crushing-magnetic selection, the smart vanadium slag of gained and silicon materials and reductive agent are prepared burden in the certain quality ratio as raw material and mix, obtain the batch mixing pelletizing;
Gained pelletizing and slag supplying agent are carried out melting and reducing by ore-smelting furnace, and the control terminal temperature obtains described vanadium-silicon alloy, and by weight percentage, described vanadium-silicon alloy contains the vanadium of 8%-15% and the silicon of 30%-50%.
3, the method for preparing vanadium-silicon alloy according to claim 2 is characterized in that: the smart vanadium slag of gained contains the V that mass percent is 15%-20%
2O
5With the TFe of 22%-30%, all the other are other impurity such as MnO.
4, the method for preparing vanadium-silicon alloy according to claim 2 is characterized in that: described silicon materials are that silicone content is silica or the mountain sand of 92%-98%.
5, the method for preparing vanadium-silicon alloy according to claim 2 is characterized in that: described reductive agent is coke or coal dust.
6, the method for preparing vanadium-silicon alloy according to claim 2, it is characterized in that: by percentage to the quality, the consumption of smart vanadium slag accounts for the 35%-50% of raw material total mass, and the consumption of silicon materials accounts for the 25%-35% of raw material total mass, and the consumption of reductive agent accounts for the 20%-30% of raw material total mass.
7, the method for preparing vanadium-silicon alloy according to claim 2, it is characterized in that: gained pelletizing and slag supplying agent are carried out the step that melting and reducing obtains vanadium-silicon alloy comprise, the gained pelletizing is sent into ore-smelting furnace smelt, the while with addition of slag supplying agent, is carried out melting and reducing in stove; Wait the molten clear back of furnace charge to add reductive agent then in stove, the control tapping temperature obtains described vanadium-silicon alloy.
8, according to claim 2 or the 7 described methods that prepare vanadium-silicon alloy, it is characterized in that: described slag supplying agent is to account for the lime of 5%-10% of pelletizing total mass and the fluorite of 3%-5%.
9, the method for preparing vanadium-silicon alloy according to claim 7 is characterized in that: the amount of adding reductive agent is the 0.05%-0.1% of furnace charge total amount.
10, according to claim 2 or the 7 described methods that prepare vanadium-silicon alloy, it is characterized in that: the time of gained pelletizing and slag supplying agent being carried out melting and reducing is 150 minutes-180 minutes, and terminal temperature is 1630 ℃-1680 ℃.
11, a kind of application method of vanadium-silicon alloy is characterized in that: vanadium-silicon alloy is applied to the alloying of molten steel, and its consumption is the 0.8%-1.3% of molten steel total mass.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388096A (en) * | 2012-05-07 | 2013-11-13 | 简刚 | Vanadium-nitrogen alloy production method |
| CN107937797A (en) * | 2017-11-22 | 2018-04-20 | 河钢股份有限公司承德分公司 | A kind of ferrovanadium nitride and preparation method thereof |
| CN109957734A (en) * | 2017-12-14 | 2019-07-02 | 宜兴安纳西智能机械设备有限公司 | A kind of battery conveying device inlet side timbering material |
| CN111004929A (en) * | 2019-12-31 | 2020-04-14 | 永平县勇泰工业废渣有限公司 | Method for producing silicon-vanadium alloy by using vanadium-containing molten iron and silica |
| CN111041222A (en) * | 2019-12-31 | 2020-04-21 | 永平县勇泰工业废渣有限公司 | Method for extracting vanadium from low-grade vanadium waste slag for submerged arc furnace |
| CN111057877A (en) * | 2019-12-31 | 2020-04-24 | 永平县勇泰工业废渣有限公司 | Ingredient for refining vanadium from low-grade vanadium waste residue |
| CN111235349A (en) * | 2020-03-10 | 2020-06-05 | 中冶东方工程技术有限公司 | Method for producing silicon-vanadium alloy by smelting vanadium-rich slag and silicon-vanadium alloy |
| CN111440977A (en) * | 2020-06-03 | 2020-07-24 | 攀钢集团研究院有限公司 | Method for preparing AlV55 alloy |
| WO2022211640A1 (en) * | 2021-03-30 | 2022-10-06 | Elkem Asa | Ferrosilicon vanadium and/or niobium alloy, production of a ferrosilicon vanadium and/or niobium alloy, and the use thereof |
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2008
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388096A (en) * | 2012-05-07 | 2013-11-13 | 简刚 | Vanadium-nitrogen alloy production method |
| CN107937797A (en) * | 2017-11-22 | 2018-04-20 | 河钢股份有限公司承德分公司 | A kind of ferrovanadium nitride and preparation method thereof |
| CN109957734A (en) * | 2017-12-14 | 2019-07-02 | 宜兴安纳西智能机械设备有限公司 | A kind of battery conveying device inlet side timbering material |
| CN111004929A (en) * | 2019-12-31 | 2020-04-14 | 永平县勇泰工业废渣有限公司 | Method for producing silicon-vanadium alloy by using vanadium-containing molten iron and silica |
| CN111041222A (en) * | 2019-12-31 | 2020-04-21 | 永平县勇泰工业废渣有限公司 | Method for extracting vanadium from low-grade vanadium waste slag for submerged arc furnace |
| CN111057877A (en) * | 2019-12-31 | 2020-04-24 | 永平县勇泰工业废渣有限公司 | Ingredient for refining vanadium from low-grade vanadium waste residue |
| CN111235349A (en) * | 2020-03-10 | 2020-06-05 | 中冶东方工程技术有限公司 | Method for producing silicon-vanadium alloy by smelting vanadium-rich slag and silicon-vanadium alloy |
| CN111440977A (en) * | 2020-06-03 | 2020-07-24 | 攀钢集团研究院有限公司 | Method for preparing AlV55 alloy |
| WO2022211640A1 (en) * | 2021-03-30 | 2022-10-06 | Elkem Asa | Ferrosilicon vanadium and/or niobium alloy, production of a ferrosilicon vanadium and/or niobium alloy, and the use thereof |
| TWI829129B (en) * | 2021-03-30 | 2024-01-11 | 挪威商艾爾坎股份有限公司 | Ferrosilicon vanadium and/or niobium alloy, production of a ferrosilicon vanadium and/or niobium alloy, and the use thereof |
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