CN108441638A - A kind of the molten of vanadium slag useless absolutely divides processing method, vanadium slag and vanadic anhydride - Google Patents
A kind of the molten of vanadium slag useless absolutely divides processing method, vanadium slag and vanadic anhydride Download PDFInfo
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- CN108441638A CN108441638A CN201810275327.8A CN201810275327A CN108441638A CN 108441638 A CN108441638 A CN 108441638A CN 201810275327 A CN201810275327 A CN 201810275327A CN 108441638 A CN108441638 A CN 108441638A
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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
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The present invention provides a kind of molten point of processing method, vanadium slag and the vanadic anhydride of vanadium slag useless absolutely, belongs to vanadium slag utilization technology field useless absolutely.Including：The vanadium slag break process that will give up absolutely is to exhausted useless vanadium slag fines；Exhausted useless vanadium slag fines is added to melting promotor in the constant temperature molten iron of melting, it is molten to divide melt process, molten iron and vanadium slag are sequentially poured out after metallic iron melting completely, vanadium slag is broken into vanadium slag particle after being cooled to 0 40 DEG C.The present invention has that operation is simple, and vanadium slag is molten to divide effect good, the low feature of production cost, and Vanadium in Vanadium Residue slag useless absolutely and iron are effectively recycled.
Description
Technical field
The present invention relates to exhausted useless vanadium slag utilization technology fields, exist respectively in particular to a kind of the molten of vanadium slag useless absolutely
Reason method, vanadium slag and vanadic anhydride.
Background technology
Vanadium is a kind of important alloying element, is mainly used for steel and iron industry, account for 85% vanadium to improve steel intensity,
Toughness, ductility and heat resistance.It is another to there is 10% vanadium to be used to produce the titanium alloy needed for aerospace industry.Vanadium can be in titanium alloy
As stabilizer and hardening agent, make titanium alloy that there is good ductility and plasticity.In addition, vanadium is accounted in other sector applications
5%, such as：Catalyst and colorant are used as in chemical industry；Chargeable H accumulator or vanadium oxidation are produced in energy industry
Restore accumulator.Therefore, vanadium has very high utility value, the collection and utilization of vanadium significant.
South Africa, Russia and China are Chan Fan big countries of the world and big export country, and European Union, Japan and the U.S. are main body entrances
State.It was predicted that the whole world can provide the market space of 100,000 tons/year of vanadium (equivalent vanadic anhydride) between coming 10 years.It is expected that from
To between the year two thousand twenty, world's vanadium demand will keep sustainable growth trend, annual growth 4.3% or so within 2011.Vanadium is usually to contain
Vanadium mineral or class matter exist with the form of phase, this prevents vanadium from as the non-ferrous metals such as copper-lead zinc, passing through the side of mechanical beneficiation
Method obtains vanadium concentrate, therefore in existing process for extracting vanadium, the ore and/or waste residue grade of processing are all relatively low, therefore find one and fit
It closes and realistic meaning is had more to the treatment process of low grade vanadium ore and/or waste residue.
There is largely discarded vanadium slag on the ground such as Sichuan, Chengde and Anhui Maanshan, discharge nearly 1,200,000 every year
Ton, these Vanadium in Vanadium Residue contents are generally relatively low, and generally 2-10% or so is mostly present in vanadium calcium titanate, is vanadium extraction
Main object, due to the CaO containing nearly 40%, more other navajoites are difficult to extract.
Vanadium slag is the main source that vanadium is obtained by wet method vanadium extraction, improves the yield of vanadium slag preprocessing process to wet method vanadium extraction
It is most important to improve vanadium yield.Currently, unavoidably will produce vanadium slag useless absolutely in vanadium slag preprocessing process.The slag is mainly by gold
Belong to iron and vanadium slag composition, iron is 50 with vanadium mass ratio:8-9.Vanadium slag useless absolutely now mainly returns to vanadium extraction by converter blowing and makees coolant, recycles
Metallic iron and vanadium slag, but recycling vanadium slag method useless absolutely increases pyrogenic process vanadium extraction cost and operation difficulty；In addition, to ferrovanadium
Mass ratio is 50:The exhausted useless vanadium slag of 8-9 is sold mainly as abrasive grit is outer at a discount at present, and vanadium is caused to lose.In order to which solution breaks off relations useless vanadium slag
Problem is recycled, a kind of vanadium slag molten useless absolutely of invention divides processing method.
Invention content
One of the objects of the present invention is to provide a kind of the molten of vanadium slag useless absolutely to divide processing method, by using the molten of iron and vanadium
Point is different, and high-temperature fusion iron isolates the ferrous metal in vanadium slag useless absolutely.
The second object of the present invention be to provide a kind of vanadium slag, ingredient and quality it is consistent with existing vanadium slag, further
Can process vanadic anhydride.
The third object of the present invention is to provide a kind of vanadic anhydride.
In order to realize that the above-mentioned purpose of the present invention, spy use following technical scheme：
A kind of the molten of vanadium slag useless absolutely divides processing method, including：Exhausted useless vanadium slag fines is added to the perseverance of melting with melting promotor
It is molten to divide melt process in warm molten iron, molten iron and vanadium slag are sequentially poured out after metallic iron melting completely, vanadium slag is cooled to 0-40
Vanadium slag particle is broken into after DEG C.
Preferably, the vanadium slag a diameter of 0.1-300mm of fines useless absolutely is obtained by vanadium slag break process useless absolutely.
Preferably, the ratio between molten iron and vanadium slag quality useless absolutely are 1：1-6.
Ranging from 1500-1800 DEG C of thermostat temperature；
Preferably, ranging from 1500-1700 DEG C of thermostat temperature；
It is highly preferred that ranging from 1550-1650 DEG C of the thermostat temperature.
Preferably, melting promotor is lime and silica；Melting promotor quality is 1-3 with vanadium slag fines mass ratio useless absolutely:20-
40。
Preferably, lime and silica mass ratio are 1.5-2.5:1；
Preferably, the mass percent of CaO is 85%-100% in lime, SiO in silica2Mass percent be
97%-100%.
It is molten that the melting time is divided to be 0.2-2.0h；
Preferably, described melt divides the melting time to be 0.3-1.5h；
It is highly preferred that molten divide the melting time to be 0.5-1.0h.
A kind of vanadium slag prepared by the preparation method by above-mentioned any one and obtains.
A kind of vanadic anhydride is made by the above-mentioned preparation-obtained vanadium slag of preparation method.
The dosage of each component is the optimum feed stock ratio for participating in reacting in above-mentioned technical proposal, but those skilled in the art
Can introduction according to the present invention carry out equivalent variation.Such as：Because of Parameters variation caused by the error of industrial production itself
It is equal with technical scheme of the present invention, other auxiliary agents is compounded on the basis of inventive formulation also with technical scheme of the present invention etc.
Together.
Compared with the prior art, the present invention has the advantages that：
1, the exhausted useless vanadium slag that the present invention uses comes from the vanadium slag generated in vanadium slag preprocessing process, realizes waste profit
With；
2, Vanadium in Vanadium Residue slag useless absolutely and iron are effectively recycled, and avoid the waste of vanadium metal and iron, additional income；
3, vanadium slag quality and ingredient produced by the invention are consistent with the mass component of existing vanadium slag, and ingredient is
(wt%)：V2O510~20, CaO1~3, SiO214~16, TFe28~30, MFe 1~3, P are less than 0.005, can directly produce
Vanadic anhydride；
4, the present invention has that operation is simple, and vanadium slag useless absolutely is molten to divide effect good, the low feature of production cost.
Specific implementation mode
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.It is not specified in embodiment specific
Condition person carries out according to conventional conditions or manufacturer's recommended conditions.Reagents or instruments used without specified manufacturer is
The conventional products that can be obtained by commercially available purchase.
According to the first aspect of the invention, a kind of molten point of processing method of vanadium slag useless absolutely is provided, including：To be given up absolutely vanadium
Slag break process is to exhausted useless vanadium slag fines；Exhausted useless vanadium slag fines is added to melting promotor in the constant temperature molten iron of melting, it is molten to exist respectively
Reason sequentially pours out molten iron and vanadium slag after metallic iron melting completely, and vanadium slag is broken into vanadium slag particle after being cooled to 0-40 DEG C.
The quality of vanadium accounts for 8%-9% in vanadium slag useless absolutely, and the quality of iron accounts for 50%-55%, mainly in advance by vanadium slag
Reason process generates, and before carrying out molten point of processing, the vanadium slag that will first give up absolutely carries out break process to 0.1-300mm, carries out broken place
The reason of reason is to be conducive to quickly separate the iron melting in exhausted useless vanadium slag, and the present invention for example can first place iron block such as
Electric arc furnaces heating melting is powered in stove after iron block melting and keeps constant temperature between 1550-1650 DEG C, molten iron is kept to melt always
Melting promotor and vanadium slag useless absolutely is added in state later, and since the density of vanadium slag useless absolutely is less than the density of molten iron, vanadium slag useless absolutely is added
It can be swum on molten iron level always in molten iron, molten iron level floated in order to keep the exhausted useless vanadium slag being added to be in, because
The addition of this vanadium slag useless absolutely is preferably with the method being gradually added.It is added to best in quality of the iron block of electric arc furnaces at first simultaneously
There is the 1/6-2/3 of vanadium slag useless absolutely.Reason for this is that although molten iron quality is few from the beginning, by constantly melting
The iron in vanadium slag useless absolutely being added, molten iron is more and more, if the iron block being initially added is excessive, finally in limited sky
Between the exhausted useless vanadium slag quality that is added of electric arc furnaces interior energy will reduce, that is, reduce separation each time and give up absolutely the efficiency of vanadium slag.
Therefore the iron block being added determines the quality and speed for being initially added vanadium slag useless absolutely.The iron block being most initially added into cannot
It is more, cannot be very little, although the quality of the vanadium slag useless absolutely of melting each time can be improved when very little, but by institute at the beginning
The iron block of addition is very little, therefore the addition of useless vanadium slag at the beginning will also be reduced absolutely.
In some embodiments of the invention, for example, vanadium slag useless absolutely be broken into particle may be sized to 50mm,
100mm、150mm、200mm、250mm、300mm.Such as the mass ratio of iron block and vanadium slag useless absolutely is such as set as 1：3、1:3.5、
1:4、1:4.5、1:5、1:5.5、1:6。
Such as electric arc in-furnace temperature could be provided as 1550 DEG C, 1570 DEG C, 1590 DEG C, 1610 DEG C, 1630 DEG C, 1650 DEG C.
Such as the lime in melting promotor is set as 1.5 with silica mass ratio:1、1.7：1、1.9：1、2.1：1、2.3：
1、2.5：1.
In order to make the iron in vanadium slag useless absolutely melt completely, therefore the melting time is 0.5-1h, while vanadium useless absolutely is being added
Also melting promotor is added when slag, melting promotor is mainly made of lime and silica, and lime is 1.5-2.5 with silica mass ratio：1, and
The mass percent of CaO is 85%-100% in lime, SiO in silica2Mass percent be 97%-100%.Melting promotor matter
Amount is 1-3 with vanadium slag fines mass ratio useless absolutely:20-40.After metallic iron has melted in exhausted useless vanadium slag, molten iron is first poured out, then
Vanadium slag is poured into from fire door in container containing slag.Finally, molten iron casting is crushed to 10~40mm after being cooled to room temperature at iron block, slag,
It fills in jumbo bag.Iron block divides vanadium slag warehousing for sale with molten.
As the second aspect of the invention, the present invention also provides a kind of vanadium slags, are prepared by above-mentioned preparation method
It arrives, the molten vanadium slag quality separated of patent of the present invention is consistent with existing vanadium slag, and ingredient is (wt%)：V2O510~20, CaO 1~
3, SiO214~16, TFe 28~30, MFe 1~3, P are less than 0.005.It is molten to divide vanadium slag that be further processed into V2O5Or VN is closed
Gold etc..
As the third aspect of the invention, the present invention also provides a kind of vanadic anhydrides, are prepared by above-mentioned vanadium slag
It obtains.
The feature and performance of the present invention are described in further detail with reference to embodiments.
Embodiment 1
Vanadium slag will be given up absolutely into break process, form 300mm vanadium slag fineves useless absolutely.Iron block 400kg is added in 2t electric arc furnaces,
Heating fusing, after iron block is melting down, energization constant temperature is maintained at 1550 DEG C in stove.Then, by the 1200kg being crushed vanadium slags useless absolutely
Fines, which is gradually added into stove on molten iron level, carries out molten point 0.5 hour.During molten point, 100kg lime is added and adds 50kg silicon
Stone promotes vanadium slag fusing useless absolutely.CaO mass Bai Fen Shuo≤85% in lime, SiO in silica2Quality Bai Fen Shuo≤98%.It waits for absolutely
After metallic iron has melted in useless vanadium slag, molten iron is first poured out, then pours into vanadium slag in container containing slag from fire door.Finally, molten iron casting
At iron block, slag is crushed to 10~40mm after being cooled to room temperature, and fills in jumbo bag.Iron block divides vanadium slag warehousing for sale with molten.
The molten vanadium slag quality separated is consistent with existing vanadium slag, and ingredient is (wt%)：V2O510, CaO3, SiO214, TFe
29, MFe 3, P are less than 0.005.It is molten to divide vanadium slag that be further processed into V2O5Or VN alloys etc..
Embodiment 2
Vanadium slag will be given up absolutely into break process, form 200mm vanadium slag fineves useless absolutely.Iron block 500kg is added in 3t electric arc furnaces,
Heating fusing, after iron block is melting down, energization constant temperature is maintained at 1550 DEG C in stove.Then, by the 1600kg being crushed vanadium slags useless absolutely
Fines, which is gradually added into stove on molten iron level, carries out molten point 1 hour.During molten point, 100kg lime is added and adds 40kg silicas,
Promote vanadium slag fusing useless absolutely.CaO mass Bai Fen Shuo≤85% in lime, SiO in silica2Quality Bai Fen Shuo≤98%.It waits for useless absolutely
After metallic iron has melted in vanadium slag, molten iron is first poured out, then pours into vanadium slag in container containing slag from fire door.Finally, molten iron casting at
Iron block, slag are crushed to 10~40mm after being cooled to room temperature, fill in jumbo bag.Iron block divides vanadium slag warehousing for sale with molten.
The molten vanadium slag quality separated is consistent with existing vanadium slag, and ingredient is (wt%):V2O511, CaO3, SiO214, TFe
29, MFe 2, P are less than 0.005.It is molten to divide vanadium slag that be further processed into V2O5Or VN alloys etc..
Embodiment 3
Vanadium slag will be given up absolutely into break process, form 200mm vanadium slag fineves useless absolutely.Iron block 500kg is added in 3t electric arc furnaces,
Heating fusing, after iron block is melting down, energization constant temperature is maintained at 1600 DEG C in stove.Then, by the 2000kg being crushed vanadium slags useless absolutely
Fines, which is gradually added into stove on molten iron level, carries out molten point 0.7 hour.During molten point, 100kg lime is added and adds 45kg silicon
Stone promotes vanadium slag fusing useless absolutely.CaO mass Bai Fen Shuo≤85% in lime, SiO in silica2Quality Bai Fen Shuo≤98%.It waits for absolutely
After metallic iron has melted in useless vanadium slag, molten iron is first poured out, then pours into vanadium slag in container containing slag from fire door.Finally, molten iron casting
At iron block, slag is crushed to 10~40mm after being cooled to room temperature, and fills in jumbo bag.Iron block divides vanadium slag warehousing for sale with molten.
The molten vanadium slag quality separated is consistent with existing vanadium slag, and ingredient is (wt%):V2O512, CaO2.5, SiO214, TFe
29, MFe 3, P are less than 0.005.It is molten to divide vanadium slag that be further processed into V2O5Or VN alloys etc..
Embodiment 4
Vanadium slag will be given up absolutely into break process, form 200mm vanadium slag fineves useless absolutely.Iron block 500kg is added in 3t electric arc furnaces,
Heating fusing, after iron block is melting down, energization constant temperature is maintained at 1580 DEG C in stove.Then, by the 2000kg being crushed vanadium slags useless absolutely
Fines, which is gradually added into stove on molten iron level, carries out molten point 0.6 hour.During molten point, 100kg lime is added and adds 60kg silicon
Stone promotes vanadium slag fusing useless absolutely.CaO mass Bai Fen Shuo≤85% in lime, SiO in silica2Quality Bai Fen Shuo≤98%.It waits for absolutely
After metallic iron has melted in useless vanadium slag, molten iron is first poured out, then pours into vanadium slag in container containing slag from fire door.Finally, molten iron casting
At iron block, slag is crushed to 10~40mm after being cooled to room temperature, and fills in jumbo bag.Iron block divides vanadium slag warehousing for sale with molten.
The molten vanadium slag quality separated is consistent with existing vanadium slag, and ingredient is (wt%):V2O512, CaO3, SiO215, TFe
29, MFe 3, P are less than 0.005.It is molten to divide vanadium slag that be further processed into V2O5Or VN alloys etc..
Embodiment 5
Vanadium slag will be given up absolutely into break process, form 100mm vanadium slag fineves useless absolutely.Iron block 600kg is added in 4t electric arc furnaces,
Heating fusing, after iron block is melting down, energization constant temperature is maintained at 1560 DEG C in stove.Then, by the 2500kg being crushed vanadium slags useless absolutely
Fines, which is gradually added into stove on molten iron level, carries out molten point 0.6 hour.During molten point, 130kg lime is added and adds 80kg silicon
Stone promotes vanadium slag fusing useless absolutely.CaO mass Bai Fen Shuo≤85% in lime, SiO in silica2Quality Bai Fen Shuo≤98%.It waits for absolutely
After metallic iron has melted in useless vanadium slag, molten iron is first poured out, then pours into vanadium slag in container containing slag from fire door.Finally, molten iron casting
At iron block, slag is crushed to 10~40mm after being cooled to room temperature, and fills in jumbo bag.Iron block divides vanadium slag warehousing for sale with molten.
The molten vanadium slag quality separated is consistent with existing vanadium slag, and ingredient is (wt%):V2O513, CaO2.5, SiO214, TFe
30, MFe 3, P are less than 0.005.It is molten to divide vanadium slag that be further processed into V2O5Or VN alloys etc..
Embodiment 6
Vanadium slag will be given up absolutely into break process, form 100mm vanadium slag fineves useless absolutely.Iron block 700kg is added in 4t electric arc furnaces,
Heating fusing, after iron block is melting down, energization constant temperature is maintained at 1590 DEG C in stove.Then, by the 3000kg being crushed vanadium slags useless absolutely
Fines, which is gradually added into stove on molten iron level, carries out molten point 0.8 hour.During molten point, 140kg lime is added and adds 80kg silicon
Stone promotes vanadium slag fusing useless absolutely.CaO mass Bai Fen Shuo≤85% in lime, SiO in silica2Quality Bai Fen Shuo≤98%.It waits for absolutely
After metallic iron has melted in useless vanadium slag, molten iron is first poured out, then pours into vanadium slag in container containing slag from fire door.Finally, molten iron casting
At iron block, slag is crushed to 10~40mm after being cooled to room temperature, and fills in jumbo bag.Iron block divides vanadium slag warehousing for sale with molten.
The molten vanadium slag quality separated is consistent with existing vanadium slag, and ingredient is (wt%):V2O514, CaO3, SiO215, TFe
28, MFe 2, P are less than 0.005.It is molten to divide vanadium slag that be further processed into V2O5Or VN alloys etc..
Embodiment 7
Vanadium slag will be given up absolutely into break process, form 100mm vanadium slag fineves useless absolutely.Iron block is added in 4t electric arc furnaces
800kg, heating fusing, after iron block is melting down, energization constant temperature is maintained at 1580 DEG C in stove.Then, the 3000kg being crushed is exhausted
Useless vanadium slag fines, which is gradually added into stove on molten iron level, carries out molten point 0.7 hour.During molten point, 150kg lime is added and adds
80kg silicas promote vanadium slag fusing useless absolutely.CaO mass Bai Fen Shuo≤85% in lime, SiO in silica2Quality Bai Fen Shuo≤
98%.After metallic iron has melted in exhausted useless vanadium slag, molten iron is first poured out, then pours into vanadium slag in container containing slag from fire door.Finally,
For molten iron casting at iron block, slag is crushed to 10~40mm after being cooled to room temperature, and fills in jumbo bag.Iron block divides vanadium slag warehousing for sale with molten.
The molten vanadium slag quality separated is consistent with existing vanadium slag, and ingredient is (wt%):V2O520, CaO2, SiO216, TFe
29, MFe 1, P are less than 0.005.It is molten to divide vanadium slag that be further processed into V2O5Or VN alloys etc..
Embodiment 8
Vanadium slag will be given up absolutely into break process, form 100mm vanadium slag fineves useless absolutely.Iron block is added in 5t electric arc furnaces
1000kg, heating fusing, after iron block is melting down, energization constant temperature is maintained at 1600 DEG C in stove.Then, the 3500kg being crushed is exhausted
Useless vanadium slag fines, which is gradually added into stove on molten iron level, carries out molten point 0.8 hour.During molten point, 190kg lime is added and adds
90kg silicas promote vanadium slag fusing useless absolutely.CaO mass Bai Fen Shuo≤85% in lime, SiO in silica2Quality Bai Fen Shuo≤
98%.After metallic iron has melted in exhausted useless vanadium slag, molten iron is first poured out, then pours into vanadium slag in container containing slag from fire door.Finally,
For molten iron casting at iron block, slag is crushed to 10~40mm after being cooled to room temperature, and fills in jumbo bag.Iron block divides vanadium slag warehousing for sale with molten.
The molten vanadium slag quality separated is consistent with existing vanadium slag, and ingredient is (wt%):V2O519, CaO2, SiO216, TFe
30, MFe2, P are less than 0.005.It is molten to divide vanadium slag that be further processed into V2O5Or VN alloys etc..
Embodiment 9
Vanadium slag will be given up absolutely into break process, form 150mm vanadium slag fineves useless absolutely.Iron block is added in 5t electric arc furnaces
1200kg, heating fusing, after iron block is melting down, energization constant temperature is maintained at 1620 DEG C in stove.Then, the 3200kg being crushed is exhausted
Useless vanadium slag fines, which is gradually added into stove on molten iron level, carries out molten point 0.8 hour.During molten point, 200kg lime is added and adds
90kg silicas promote vanadium slag fusing useless absolutely.CaO mass Bai Fen Shuo≤85% in lime, SiO in silica2Quality Bai Fen Shuo≤
98%.After metallic iron has melted in exhausted useless vanadium slag, molten iron is first poured out, then pours into vanadium slag in container containing slag from fire door.Finally,
For molten iron casting at iron block, slag is crushed to 10~40mm after being cooled to room temperature, and fills in jumbo bag.Iron block divides vanadium slag warehousing for sale with molten.
The molten vanadium slag quality separated is consistent with existing vanadium slag, and ingredient is (wt%):V2O518, CaO1.5, SiO216, TFe
30, MFe1.5, P are less than 0.005.It is molten to divide vanadium slag that be further processed into V2O5Or VN alloys etc..
Embodiment 10
Vanadium slag will be given up absolutely into break process, form 250mm vanadium slag fineves useless absolutely.Iron block is added in 5t electric arc furnaces
1500kg, heating fusing, after iron block is melting down, energization constant temperature is maintained at 1650 DEG C in stove.Then, the 3500kg being crushed is exhausted
Useless vanadium slag fines, which is gradually added into stove on molten iron level, carries out molten point 0.9 hour.During molten point, 200kg lime is added and adds
90kg silicas promote vanadium slag fusing useless absolutely.CaO mass Bai Fen Shuo≤85% in lime, SiO in silica2Quality Bai Fen Shuo≤
98%.After metallic iron has melted in exhausted useless vanadium slag, molten iron is first poured out, then pours into vanadium slag in container containing slag from fire door.Finally,
For molten iron casting at iron block, slag is crushed to 10~40mm after being cooled to room temperature, and fills in jumbo bag.Iron block divides vanadium slag warehousing for sale with molten.
The molten vanadium slag quality separated is consistent with existing vanadium slag, and ingredient is (wt%):V2O515, CaO2, SiO213, TFe
28, MFe 2, P are less than 0.005.It is molten to divide vanadium slag that be further processed into V2O5Or VN alloys etc..
Embodiment 11
Vanadium slag will be given up absolutely into break process, form 100mm vanadium slag fineves useless absolutely.Iron block is added in 5t electric arc furnaces
2000kg, heating fusing, after iron block is melting down, energization constant temperature is maintained at 1620 DEG C in stove.Then, the 2500kg being crushed is exhausted
Useless vanadium slag fines, which is gradually added into stove on molten iron level, carries out molten point 1 hour.During molten point, 180kg lime is added and adds
100kg silicas promote vanadium slag fusing useless absolutely.CaO mass Bai Fen Shuo≤85% in lime, SiO in silica2Quality Bai Fen Shuo≤
98%.After metallic iron has melted in exhausted useless vanadium slag, molten iron is first poured out, then pours into vanadium slag in container containing slag from fire door.Finally,
For molten iron casting at iron block, slag is crushed to 10~40mm after being cooled to room temperature, and fills in jumbo bag.Iron block divides vanadium slag warehousing for sale with molten.
The molten vanadium slag quality separated is consistent with existing vanadium slag, and ingredient is (wt%):V2O515, CaO1, SiO215, TFe
29, MFe 1, P are less than 0.005.It is molten to divide vanadium slag that be further processed into V2O5Or VN alloys etc..
Embodiment 12
Vanadium slag will be given up absolutely into break process, form 250mm vanadium slag fineves useless absolutely.Iron block is added in 5t electric arc furnaces
2000kg, heating fusing, after iron block is melting down, energization constant temperature is maintained at 1650 DEG C in stove.Then, the 2200kg being crushed is exhausted
Useless vanadium slag fines, which is gradually added into stove on molten iron level, carries out molten point 1 hour.During molten point, 200kg lime is added and adds
100kg silicas promote vanadium slag fusing useless absolutely.CaO mass Bai Fen Shuo≤85% in lime, SiO in silica2Quality Bai Fen Shuo≤
98%.After metallic iron has melted in exhausted useless vanadium slag, molten iron is first poured out, then pours into vanadium slag in container containing slag from fire door.Finally,
For molten iron casting at iron block, slag is crushed to 10~40mm after being cooled to room temperature, and fills in jumbo bag.Iron block divides vanadium slag warehousing for sale with molten.
The molten vanadium slag quality separated is consistent with existing vanadium slag, and ingredient is (wt%):V2O516, CaO1, SiO214, TFe
30, MFe 1, P are less than 0.005.It is molten to divide vanadium slag that be further processed into V2O5Or VN alloys etc..
Compared with the prior art, the present invention has the advantages that：
1, the exhausted useless vanadium slag that the present invention uses comes from the vanadium slag generated in vanadium slag preprocessing process, realizes waste profit
With；
2, Vanadium in Vanadium Residue slag useless absolutely and iron are effectively recycled, and avoid the waste of vanadium metal and iron, additional income；
3, vanadium slag quality and ingredient produced by the invention are consistent with the mass component of existing vanadium slag, and ingredient is
(wt%)：V2O510~20, CaO1~3, SiO214~16, TFe28~30, MFe 1~3, P are less than 0.005, can directly produce
Vanadic anhydride；
4, the present invention has that operation is simple, and vanadium slag useless absolutely is molten to divide effect good, the low feature of production cost.
Although illustrate and describing the present invention with specific embodiment, it will be appreciated that without departing substantially from the present invention's
Many other change and modification can be made in the case of spirit and scope.It is, therefore, intended that wrapping in the following claims
Include all such changes and modifications belonged in the scope of the invention.
Claims (10)
1. a kind of the molten of vanadium slag useless absolutely divides processing method, which is characterized in that including：Exhausted useless vanadium slag fines is added to melting promotor
It is molten to divide melt process in the constant temperature molten iron of melting, pour out molten iron and vanadium slag after metallic iron melting completely.
2. the molten of vanadium slag useless absolutely described in accordance with the claim 1 divides processing method, which is characterized in that the vanadium slag fines useless absolutely is straight
Diameter is 0.1-300mm, is obtained by vanadium slag break process useless absolutely.
3. the molten of vanadium slag useless absolutely described in accordance with the claim 1 divides processing method, which is characterized in that the molten iron gives up absolutely with described
The ratio between vanadium slag quality is 1：1-6.
4. the molten of vanadium slag useless absolutely described in accordance with the claim 1 divides processing method, which is characterized in that the thermostat temperature is ranging from
1500-1800℃；
Preferably, ranging from 1500-1700 DEG C of thermostat temperature；
It is highly preferred that ranging from 1550-1650 DEG C of the thermostat temperature.
5. the molten of vanadium slag useless absolutely described in accordance with the claim 1 divides processing method, which is characterized in that the melting promotor be lime with
Silica；The melting promotor quality is 1-3 with the vanadium slag fines mass ratio useless absolutely:20-40.
6. the molten of vanadium slag useless absolutely divides processing method according to claim 5, which is characterized in that the lime and silica quality
The ratio between be 1.5-2.5:1.
7. the molten of vanadium slag useless absolutely divides processing method according to claim 5, which is characterized in that CaO mass in the lime
Percentage is 85%-100%, SiO in silica2Mass percent is 97%-100%.
8. the molten of vanadium slag useless absolutely described in accordance with the claim 1 divides processing method, which is characterized in that described molten to divide the melting time to be
0.2-2.0h；
Preferably, described melt divides the melting time to be 0.3-1.5h；
It is highly preferred that described melt divides the melting time to be 0.5-1.0h.
9. a kind of vanadium slag obtains prepared by claim 1-8 any one of them preparation methods.
10. a kind of vanadic anhydride is made by the preparation-obtained vanadium slag of preparation method described in claim 9.
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