CN105886787B - A kind of method that vanadium is reclaimed from corundum slag containing vanadium - Google Patents
A kind of method that vanadium is reclaimed from corundum slag containing vanadium Download PDFInfo
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- CN105886787B CN105886787B CN201610317201.3A CN201610317201A CN105886787B CN 105886787 B CN105886787 B CN 105886787B CN 201610317201 A CN201610317201 A CN 201610317201A CN 105886787 B CN105886787 B CN 105886787B
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- 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
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/04—Working-up slag
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- 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
- C22B34/00—Obtaining refractory metals
- C22B34/20—Obtaining niobium, tantalum or vanadium
- C22B34/22—Obtaining vanadium
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- 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
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C35/00—Master alloys for iron or steel
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention belongs to field of metallurgy, and in particular to a kind of method that vanadium is reclaimed from corundum slag containing vanadium.The technical problems to be solved by the invention are to provide a kind of method smelted from vanadium iron and vanadium is reclaimed in corundum slag containing vanadium, while the relatively low corundum slag of vanadium content caused by vanadium iron smelting process is replaced into part magnesia to electric furnace progress fettling as mending material, after the higher corundum slag of vanadium content is mixed in batches with barium oxide, aluminium shot, abrasive grit, put into electric furnace and carry out more phase arc smeltings；Slagged tap when content of vanadium is reduced to 0.40% and less than 0.60% in 1,2 phase slags, when content of vanadium is reduced to below 1.50% in the 3rd phase slag, slag iron goes out together, and pours to cast from ingot mould and cooled down.The inventive method can not only reclaim the vanadium in corundum slag containing vanadium, reduce the dosage of fettling magnesia, additionally it is possible to reduce smelting system waste yield.
Description
Technical field
The invention belongs to field of metallurgy, and in particular to a kind of method that vanadium is reclaimed from corundum slag containing vanadium.
Background technology
Vanadium iron is as the vanadium micro-alloying intermediate alloy being most widely used in steel smelting procedure, its smelting process
It is mainly based upon the thermal reduction (such as thermit reduction, silicothermic process and carbothermic method) containing barium oxide.Wherein aluminothermy
Reducing process is applied to produce using all trade mark vanadium irons of different valence state barium oxide, is using most in current world wide
For extensive vanadium iron smelting process.The main discarded object of the technique is corundum slag, and its main component is 65% or so aluminothermy
Reduzate Al2O3, 15% or so slag-making addition CaO, 10~15% lining wear MgO, and part V, Fe and other
Oxide impurity.Because the slag system contains a large amount of Al2O3And MgO, cause system fusing point higher.Processing for the corundum slag containing vanadium,
Recycling approach main at present is low value-added as production industrial ceramics, the resistance to material of low temperature and steel-making covering slag etc.
The raw material of product are sold.Particularly when full content of vanadium is higher in corundum slag, if not recycled to it, not only
The significant wastage of vanadium resource can be caused, also can further aggravate the environmental pressure and vanadium iron industrial chain of vanadium iron smelting procedure
Sustainable development.
At present, vanadium iron smelts the comprehensive Utilization Ways of corundum slag containing vanadium and focuses primarily upon the recovery of vanadium in slag and castaway slag
Recycling.Patent CN102560006B provides the Application way and pre-melted refining slag of a kind of ferrovanadium slag, most end form
Into containing 12CaO7Al2O3And/or 3CaOAl2O3The slag of phase, it can be refined after cooling as the pre-melted type for meeting process for making
Slag.The method that patent CN102912158B provides vanadium iron in a kind of essence slag melting using vanadium, using vanadium essence slag as raw materials for metallurgy
Metal Melting is carried out, technological process is shortened, reduces production cost.Patent CN103642988A provides one kind corundum slag
The method for carrying out liquid steel refining, this method are directly used it for making steel tundish refining procedure, solution by finely tuning corundum slag ingredient
Certainly clinker recycles problem, and refining desulfuration effect is good.
From the point of view of technology disclosed above, although the corundum slag of vanadium iron smelting at present can have certain answer in field of metallurgy
With, but its recycling is horizontal and disposal ability is limited, is not met by the need that vanadium iron is smelted the big quantity of slag, efficiently utilized
Ask.In view of the above-mentioned problems existing in the prior art, can not only be reclaimed the invention reside in offer one kind valuable in corundum slag containing vanadium
Metal element vanadium simultaneously can also recycling corundum slag containing vanadium nearby method.
The content of the invention
The goal of the invention of the present invention is in order in corundum slag containing vanadium caused by during preparing vanadium iron from aluminothermic reduction
Vanadium is reclaimed, so as to provide a kind of method that vanadium is reclaimed from corundum slag containing vanadium.This method comprises the following steps：
A, fettling is carried out to smelting furnace with corundum slag containing vanadium and magnesia after every 4~6 heats smelting terminates；
B, with corundum slag containing vanadium, V2O3, aluminium, iron, lime be raw material, smelted using three phases, smelted when the first phase, the second phase
Respectively once slagged tap after end, slag iron goes out together after the third phase, which smelts, to be terminated, and is cast in ingot mould, and vanadium is produced after cooling slagging-off
Ferroalloy；Wherein, the tank of the first phase the 1st is with addition of corundum slag containing vanadium, need to be used when with aluminum amount being fettling to contain vanadium with addition of extra aluminium
1.20~1.30 times of the theoretical aluminium consumption of vanadium in corundum slag；In addition to the tank of the first phase the 1st, other also need additionally with addition of aluminium to match somebody with somebody per tank
Aluminum amount is theoretical consume aluminium 1.10~1.30 times of vanadium in corundum slag containing vanadium in every tank.
Preferably, in above method step a, during fettling the addition of the corundum slag containing vanadium account for fettling raw material total amount 30~
70%.
Preferably, in above method step a, full content of vanadium is less than 2.0% in corundum slag containing vanadium used by fettling, granularity
In below 10mm.
Preferably, in above method step b, full content of vanadium is 2.0~7.0% in corundum slag containing vanadium used by smelting,
Granularity is in below 10mm.
Preferably, in above method step b, the first phase, the second phase, the V of the third phase2O3Weight ratio is the ︰ 1~2 of 4 ︰ 2~3；
Each issue of V2O3It is 100 ︰ 30~60 with the weight ratio of corundum slag containing vanadium；Each issue of V2O3It is 100 ︰ 20~65 with aluminium weight ratio；
Each issue of V2O3It is 100 ︰ 53~65 with iron weight ratio；Each issue of V2O3It is 100 ︰ 15~30 with lime weight ratio.
Further, in above method step b, first phase V2O3It is 100 ︰ 45~65, second phase V with aluminium weight ratio2O3With
Aluminium weight ratio is 100 ︰ 35~50, third phase V2O3It is 100 ︰ 20~40 with aluminium weight ratio.
Preferably, in above method step b, slag tap, go out when full content of vanadium is reduced to below 0.40% in first phase slag
The quantity of slag accounts for the 80~90% of total quantity of slag；Slagged tap when full content of vanadium is reduced to below 0.60% in second phase slag, amount of slag accounts for always
The 80~90% of the quantity of slag；Slagged tap when full content of vanadium is reduced to below 1.5% in third phase slag.
Further, in above method step b, the first phase, the second phase, the duration of heat third phase be respectively 80~
120min, 40~70min, 30~50min.
The inventive method reasonably adds corundum slag containing vanadium in vanadium iron smelting, and raw material adds when having optimized and revised smelting
Add the parameters such as ratio, not only solve environmental problem caused by the accumulation of corundum slag containing vanadium, and can efficiently reclaim containing vanadium
Vanadium in corundum slag, achieve good technique effect.
Embodiment
It is a kind of from aluminothermic reduction prepare vanadium iron during caused by the method for vanadium is reclaimed in corundum slag containing vanadium.The present invention
Realized using following steps：
A, for quantity-produced electric furnace, every 4~6 heats, which are smelted, to be finished, and next heat uses before smelting to be contained
Vanadium corundum slag replaces part magnesia to carry out fettling to electric furnace as mending material；
Preferably, the corundum slag containing vanadium that fettling uses accounts for the 30~70% of fettling raw material total amount.
Preferably, full content of vanadium is below 2.0% in the corundum slag containing vanadium that fettling uses, and granularity is in below 10mm.
B, corundum slag containing vanadium is crushed, sieved, be transported to vanadium iron smelting mixed material area and smelted；
Preferably, smelt in the corundum slag containing vanadium used that full content of vanadium is 2.0~7.0%, granularity is in below 10mm.
C, with corundum slag containing vanadium, aluminium, iron, lime, V2O3For raw materials for metallurgy, using three phase method vanadium iron smelting processes；The first phase
1st tank with addition of corundum slag containing vanadium, only need to not add aluminium, iron, lime, V2O3Carry out striking smelting；Then sequentially adding the first phase remains
Raw materials for metallurgy in clout tank and second phase batch can；Respectively once slagged tap after the first phase, the second phase smelting and terminating；Add
Third phase raw materials for metallurgy, slag iron goes out together after the third phase, which smelts, to be terminated, and metallurgical slag gold is dumped into casting from electric furnace
In ingot mould, and cooled down；Wherein, the tank of the first phase the 1st need to be corundum containing vanadium used in fettling with aluminum amount with addition of additional reducing agent aluminium
1.20~1.30 times (i.e. corresponding aluminium coefficient of matching somebody with somebody is 1.20~1.30) of the theoretical aluminium consumption of vanadium in slag；In addition to the 1st tank, other are per tank
Needed in raw material additionally with addition of reducing agent aluminium, during with aluminum amount to smelt in corresponding corundum slag containing vanadium the theoretical aluminium consumption of vanadium 1.10~
1.30 (i.e. corresponding aluminium coefficient of matching somebody with somebody is 1.10~1.30).
Preferably, during smelting, first, second, third phase V2O3Added according to weight than the ratios of 4 ︰, 2~3 ︰ 1~2, each issue
V2O3It is 100 ︰ 30~60 with the weight ratio of corundum slag containing vanadium；Each issue of V2O3It is 100 ︰ 20~65 with aluminium weight ratio；Each issue
V2O3It is 100 ︰ 53~65 with iron weight ratio；Each issue of V2O3It is 100 ︰ 15~30 with lime weight ratio.
Further, first phase V2O3It is 100 ︰ 45~65, second phase V with aluminium weight ratio2O3It is 100 ︰ 35 with aluminium weight ratio
~50, third phase V2O3It is 100 ︰ 20~40 with aluminium weight ratio.
Preferably, when full content of vanadium is reduced to 0.40% and less than 0.60% in the first phase, second phase slag, respectively enter
Tapping operation of row, amount of slag account for the 80~90% of total quantity of slag；When TV contents are reduced to below 1.50% in third phase slag,
Slag iron goes out together.
Preferably, each duration of heat phase is respectively 80~120min, 40~70min, 30~50min.
D, carry out tearing stove open to pouring ingot mould after cooling down, remove vanadium iron and smelt corundum slag, obtain vanadium iron cake.
In specific production process, it is required for before every 1 heat is smelted with firm containing vanadium in the inventive method step a
Beautiful slag and magnesia carry out fettling, but every 4~6 heats are smelted after terminating and carry out a fettling, then smelt 4~6 heats again
A fettling is carried out, by that analogy.So after the 1st heat smelting terminates after fettling, it is not necessary to carry out fettling, directly enter
The next heat of row is smelted, at this moment without addition corundum slag fettling, then the 1st tank of this heat is without the extra reduction of addition
Agent aluminium, see embodiment 2；Ensuing 1st heat is shown in again in the 1st tank with addition of extra reducing agent aluminium after fettling next time
Embodiment 1,3,4, by that analogy.
It should be noted that in the inventive method step b, each issue of V is defined2O3With aluminium weight ratio be 100 ︰ 20~
65.Preferably, first phase V2O3It is 100 ︰ 45~65, second phase V with aluminium weight ratio2O3It is 100 ︰ 35~50 with aluminium weight ratio, the
Three phase V2O3It is 100 ︰ 20~40 with aluminium weight ratio；Herein the addition of aluminium include need additionally with addition of reducing agent aluminium.
In the inventive method, do not make specified otherwise, content, ratio etc. and refer both to percentage by weight.
The embodiment of the present invention is further described with reference to embodiment, therefore not limited the present invention
System is among described scope of embodiments.
Embodiment 1
1st, fettling：Respectively by content of vanadium be 100 parts of 1.5% corundum slag, 200 parts of fettling magnesia it is broken after, mixture is uniform, right
Electric furnace carries out fettling operation, and additionally with addition of 1 part of reducing agent aluminium in corresponding 1st tank raw material.
2nd, smelt：Smelting process was divided into for three phases, and the vanadium trioxide weight ratios of three phases is the ︰ 2 of 4 ︰ 2, the first phase, second phase smelting
Respectively once slagged tap after refining, slag iron goes out together after the third phase smelts.
A, the first phase is smelted：By 100 parts of V2O3, 53 parts of aluminium shots, 63 parts of abrasive grits, 15 parts of lime are as electrode starting the arc material, insertion
After electrode reaction is complete；Add 300 parts of V2O3, 90 parts of content of vanadium be 3.50% corundum slag, 160 parts of aluminium shots, 190 parts of abrasive grits, 45
Part lime carries out first phase electric arc melting, energization 105min, and content of vanadium is 0.32% to be slagged tap in slag, 480 parts of the quantity of slag of slagging tap.
B, the second phase is smelted：Add 200 parts of V2O3, 60 parts of content of vanadium be 3.50% corundum slag, 82 parts of aluminium shots, 125 parts of iron
Grain, 30 parts of lime carry out second phase electric arc meltings, energization 45min, and content of vanadium is 0.54% to be slagged tap for the second time in slag, is slagged tap
300 parts of the quantity of slag.
C, the third phase is smelted：Add 200 parts of V2O3, 60 parts of content of vanadium be 3.50% corundum slag, 56 parts of aluminium shots, 125 parts of iron
Grain, 30 parts of lime carry out third phase electric arc meltings, energization 40min, and when content of vanadium is reduced to 1.23% in slag, slag iron is the same as going out.
3rd, metallurgical slag gold is dumped into from electric furnace pour in ingot mould after, cool down 40min, be transported to water cooling area.
Embodiment 2
1st, direct the second heat of carry out smelting after finishing is smelted for the body of heater of just progress fettling, a upper heat.
2nd, smelt：Smelting process was divided into for three phases, and three phase vanadium oxide weight ratios are the ︰ 2 of 4 ︰ 2, and the first phase, the second phase, which smelt, to be finished
Respectively once slagged tap afterwards, slag iron goes out together after the third phase smelts.
A, the first phase is smelted：By 100 parts of V2O3, 46 parts of aluminium shot, 63 parts of abrasive grits, 25 parts of lime are as electrode starting the arc material；Insertion
After electrode reaction is complete, 300 parts of V are added2O3, 120 parts of content of vanadium be 4.20% corundum slag, 143 parts of aluminium shots, 190 parts of abrasive grits,
75 parts of lime carry out first phase electric arc meltings, energization 116min, and content of vanadium is 0.43% to be slagged tap in slag, is slagged tap 470 parts.
B, the second phase is smelted：Add 200 parts of V2O3, 80 parts of content of vanadium be 4.20% corundum slag, 82 parts of aluminium shots, 125 parts of iron
Grain, 50 parts of lime carry out second phase electric arc meltings, energization 46min, and content of vanadium is 0.55% to be slagged tap in slag, is slagged tap 330 parts.
C, the third phase is smelted：Add 200 parts of V2O3, 80 parts of content of vanadium be 4.20% corundum slag, 77.5 parts of aluminium shots, 125 parts
Abrasive grit, 50 parts of lime carry out third phase electric arc meltings, energization 43min, and slag iron is the same as going out when content of vanadium is 1.15% in slag.
3rd, metallurgical slag gold is dumped into from electric furnace pour in ingot mould after, cool down 40min, be transported to water cooling area.
Embodiment 3
1st, fettling：Mixture is uniform after respectively be 150 parts of 1.50% corundum slag by content of vanadium, 150 parts of fettling magnesia is broken, right
Electric furnace carries out fettling operation, and additionally with addition of 1.5 parts of reducing agent aluminium in corresponding 1st tank raw material.
2nd, smelt：Three phase of smelting process vanadium oxide weight ratio is the ︰ 1 of 4 ︰ 3, is respectively carried out after the first phase, second phase smelting
Once slag tap, slag iron goes out together after the third phase smelts.
A, the first phase is smelted：By 100 parts of V2O3, 56 parts of aluminium shot, 63 parts of abrasive grits, 30 parts of lime are as electrode starting the arc material；Insertion
After electrode reaction is complete, 300 parts of V are added2O3, 150 parts of content of vanadium be 3.90% corundum slag, 166 parts of aluminium shots, 190 parts of abrasive grits,
90 parts of lime carry out first phase electric arc meltings, energization 98min, are slagged tap when content of vanadium is reduced to 0.28% in slag, slag of slagging tap
490 parts of amount.
B, the second phase is smelted：Add 300 parts of V2O3, 150 parts of content of vanadium be 3.90% corundum slag, 121 parts of aluminium shots, 190 parts
Abrasive grit, 90 parts of lime carry out second phase electric arc melting, energization 55min, go out for the second time when content of vanadium is reduced to 0.48% in slag
Slag, 340 parts of the quantity of slag of slagging tap.
C, the third phase is smelted：Add 100 parts of V2O3, 50 parts of content of vanadium be 3.90% corundum slag, 15.5 parts of aluminium shots, 63 parts
Abrasive grit, 30 parts of lime carry out third phase electric arc meltings, energization 34min, and when content of vanadium is reduced to 1.12% in slag, slag iron is the same as going out.
3rd, metallurgical slag gold is dumped into from electric furnace pour in ingot mould after, stand 30min.
Embodiment 4
1st, fettling：Mixture is uniform after respectively be 150 parts of 1.50% corundum slag by content of vanadium, 150 parts of fettling magnesia is broken, right
Electric furnace carries out fettling operation, and additionally with addition of 1.5 parts of reducing agent aluminium in corresponding 1st tank raw material.
2nd, smelt：Three phase of smelting process vanadium oxide weight ratio is the ︰ 1 of 4 ︰ 3, is respectively carried out after the first phase, second phase smelting
Once slag tap, slag iron goes out together after the third phase smelts.
A, the first phase is smelted：By 100 parts of V2O3, 50 parts of aluminium shot, 63 parts of abrasive grits, 30 parts of lime are as electrode starting the arc material；Insertion
After electrode reaction is complete, 300 parts of V are added2O3, 150 parts of content of vanadium be 3.70% corundum slag, 153 parts of aluminium shots, 190 parts of abrasive grits,
90 parts of lime carry out first phase electric arc meltings, energization 120min, slagged tap when content of vanadium is reduced to 0.38% in slag, slag tap 500
Part.
B, the second phase is smelted：Add 300 parts of V2O3, 150 parts of content of vanadium be 3.70% corundum slag, 128 parts of aluminium shots, 190 parts
Abrasive grit, 90 parts of lime carry out second phase electric arc meltings, energization 70min, are slagged tap for the second time when content of vanadium is reduced to 0.57% in slag,
Slag tap 400 parts.
C, the third phase is smelted：Add 100 parts of V2O3, 100 parts of content of vanadium be 3.70% corundum slag, 27 parts of aluminium shots, 63 parts of iron
Grain, 30 parts of lime carry out third phase electric arc meltings, energization 45min, and when content of vanadium is reduced to 1.30% in slag, slag iron is the same as going out.
3rd, metallurgical slag gold is dumped into from electric furnace pour in ingot mould after, stand 30min, and be transported to water cooling area.
Comparative example
1st, fettling：Fettling is carried out to electric furnace using 300 parts of magnesia after broken.
2nd, smelt：Three phase of smelting process vanadium oxide weight ratio is the ︰ 2 of 4 ︰ 2, is respectively carried out after the first phase, second phase smelting
Once slag tap, slag iron goes out together after the third phase smelts.
A, the first phase is smelted：By 400 parts of V2O3, 199 parts of aluminium shots, 250 parts of abrasive grits, 80 parts of lime added after mixing in electric furnace,
And insert electrode and carry out first phase melting, energization 90min, content of vanadium is reduced to 0.42% and slagged tap in slag, the quantity of slag of slagging tap 350
Part.
B, the second phase is smelted：Add 200 parts of V2O3, 79 parts of aluminium shots, 125 parts of abrasive grits, 40 parts of lime carry out second phase electric arcs and melt
Refine, energization 50min, slag tap, slag tap 250 parts for the second time when content of vanadium is reduced to 0.62% in slag.
C, the third phase is smelted：Add 200 parts of V2O3, 58 parts of aluminium shots, 125 parts of abrasive grits, 40 parts of lime carry out third phase electric arcs and melt
Refine, energization 40min, when content of vanadium is reduced to 1.50% in slag, slag iron goes out together.
Table 1
| Technical indicator | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example |
| Average vanadium damage/% in slag | 2.32 | 2.49 | 2.30 | 2.73 | 2.37 |
| Content containing Vanadium in Vanadium Residue/% | 3.50 | 4.20 | 3.90 | 3.70 | -- |
| The rate of recovery/% of vanadium in corundum slag containing vanadium | 82.5 | 76.4 | 87.1 | 85.8 | -- |
| Proportion/% of vanadium is reclaimed in corundum slag | 1.50 | 1.95 | 2.36 | 2.14 | -- |
| Conduction time/min | 190 | 205 | 187 | 235 | 180 |
It in summary it can be seen, the present invention adds vanadium iron in vanadium iron field of smelting and smelts corundum slag containing vanadium, and reasonably adjusts
Whole parameters, make by with conventional method same consumption energy on the premise of, vanadium loss is suitable with the vanadium loss of existing method, and
The extra vanadium reclaimed in corundum slag containing vanadium, while the substantial amounts of vanadium iron that consumes nearby smelts discarded corundum slag.So present invention
Method provides a method for preferably reclaiming the vanadium in corundum slag containing vanadium.
Claims (6)
- A kind of 1. method that vanadium is reclaimed from corundum slag containing vanadium, it is characterised in that：Comprise the following steps：A, fettling is carried out to smelting furnace with corundum slag containing vanadium and magnesia after every 4~6 heats smelting terminates；B, with corundum slag containing vanadium, V2O3, aluminium, iron, lime be raw material, smelted using three phases, terminated when the first phase, the second phase smelt Respectively once slagged tap afterwards, when the third phase smelt terminate after slag iron with go out, be cast in ingot mould, cooling slagging-off after produce vanadium iron conjunction Gold；Wherein, the tank of the first phase the 1st is with addition of corundum slag containing vanadium, need to be with addition of extra aluminium, corundum containing vanadium used when with aluminum amount being fettling 1.20~1.30 times of the theoretical aluminium consumption of vanadium in slag；In addition to the tank of the first phase the 1st, other are also needed additionally with addition of aluminium, with aluminum amount per tank For 1.10~1.30 times of the theoretical consumption aluminium of vanadium in corundum slag containing vanadium in every tank；The first phase, the second phase, the V of the third phase2O3Weight Than for the ︰ 1~2 of 4 ︰ 2~3；Each issue of V2O3It is 100 ︰ 30~60 with the weight ratio of corundum slag containing vanadium；Each issue of V2O3With iron weight Than being 100 ︰ 53~65；Each issue of V2O3It is 100 ︰ 15~30 with lime weight ratio；First phase V2O3It is with aluminium weight ratio 100 ︰ 45~65, second phase V2O3It is 100 ︰ 35~50, third phase V with aluminium weight ratio2O3It is 100 ︰ 20~40 with aluminium weight ratio.
- 2. the method according to claim 1 that vanadium is reclaimed from corundum slag containing vanadium, it is characterised in that：In step a, during fettling The addition of the corundum slag containing vanadium accounts for the 30~70% of fettling raw material total amount.
- 3. the method according to claim 1 that vanadium is reclaimed from corundum slag containing vanadium, it is characterised in that：In step a, fettling institute Full content of vanadium is less than 2.0% in the corundum slag containing vanadium used, and granularity is in below 10mm.
- 4. the method according to claim 1 that vanadium is reclaimed from corundum slag containing vanadium, it is characterised in that：In step b, institute is smelted Full content of vanadium is 2.0~7.0% in the corundum slag containing vanadium used, and granularity is in below 10mm.
- 5. the method according to claim 1 that vanadium is reclaimed from corundum slag containing vanadium, it is characterised in that：In step b, when first Slagged tap when full content of vanadium is reduced to less than 0.40% in phase slag, amount of slag accounts for the 80~90% of total quantity of slag；When complete in second phase slag Content of vanadium is slagged tap when being reduced to less than 0.60%, and amount of slag accounts for the 80~90% of total quantity of slag；When full content of vanadium drop in third phase slag It is low to less than 1.5% when slag tap.
- 6. the method for vanadium is reclaimed from corundum slag containing vanadium according to claim 1 or 5, it is characterised in that：In step b, the One phase, the second phase, the duration of heat third phase are respectively 80~120min, 40~70min, 30~50min.
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| CN107058764B (en) * | 2017-04-17 | 2019-03-19 | 攀钢集团研究院有限公司 | A method of recycling vanadium from corundum slag |
| CN108636988A (en) * | 2018-05-20 | 2018-10-12 | 英玖环境科技（成都）有限责任公司 | The corundum slag solid waste comprehensive utilization of resources that vanadium iron production generates |
| CN109852821A (en) * | 2019-03-05 | 2019-06-07 | 攀钢冶金材料有限责任公司 | A kind of processing method of ferrovanadium dregs |
| CN110042238B (en) * | 2019-04-29 | 2021-04-27 | 攀钢集团攀枝花钢铁研究院有限公司 | Production method of high-quality FeV50 alloy |
| CN110408779B (en) * | 2019-07-25 | 2021-04-02 | 河钢股份有限公司承德分公司 | Method for comprehensively recycling vanadium-containing solid waste resources |
| CN113073254A (en) * | 2021-03-26 | 2021-07-06 | 攀枝花学院 | Silicon-vanadium alloy prepared from low-vanadium corundum slag and preparation method thereof |
| CN113213783B (en) * | 2021-04-13 | 2022-04-29 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for treating ferrovanadium smelting slag |
| CN113621870A (en) * | 2021-07-08 | 2021-11-09 | 河钢承德钒钛新材料有限公司 | Application and application method of vanadium-containing cold material |
| CN114293043A (en) * | 2021-11-19 | 2022-04-08 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for smelting ferrovanadium alloy by ferrosilicon |
| CN114350962A (en) * | 2021-11-26 | 2022-04-15 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for smelting ferrovanadium alloy from vanadium-containing corundum slag |
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