CN110042190A - The converter producing of sodium system vanadium slag and its subsequent method for leaching vanadium extraction - Google Patents
The converter producing of sodium system vanadium slag and its subsequent method for leaching vanadium extraction Download PDFInfo
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- CN110042190A CN110042190A CN201910398320.XA CN201910398320A CN110042190A CN 110042190 A CN110042190 A CN 110042190A CN 201910398320 A CN201910398320 A CN 201910398320A CN 110042190 A CN110042190 A CN 110042190A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
- C21C5/35—Blowing from above and through the bath
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/36—Processes yielding slags of special composition
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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
- C22B7/006—Wet 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
- 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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- 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
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Abstract
The present invention relates to the converter producing of sodium system vanadium slag and its subsequent methods for leaching vanadium extraction, belong to Ferrous Metallurgy and vanadium titanium chemical field.Present invention solves the technical problem that be vanadium slag production process vanadium oxygenation efficiency is low, thermal loss is big.The present invention discloses the converter producing and its Oxidation Leaching extraction vanadium method of sodium system vanadium slag, step is included in after molten iron is blended into converter, carry out phase blowing oxidation, coolant, soda ash are added in converting process, half steel is poured out after one phase finishing blowing, vanadium slag containing sodium is stayed in soda ash, NaCl progress second phase blowing oxidation are added in converter, in converter, and blowing is aoxidized after terminating and obtained through water logging containing vanadium leachate.The present invention can reduce operation quantity of the molten iron production containing vanadium leachate, can improve the oxygenation efficiency of vanadium, reduce Process Energy consumption, and the utilization and vanadium extraction production cost for being conducive to resource reduce, and be enterprise's save the cost, create benefit.
Description
Technical field
The invention belongs to Ferrous Metallurgy and vanadium titanium chemical fields, and in particular to the converter producing of sodium system vanadium slag and its subsequent leaching
The method of vanadium extraction out.
Background technique
Vanadium (V) is a kind of transiting group metal elements, and chemical property is more stable under vanadium metal room temperature, relatively active under high temperature.Vanadium
The valence electron structure of atom is 3d34s2, be typical valence variation element, five valence electrons can participate in bonding, have+2 ,+3 ,+
4 and+5 valence states.Different partial pressure of oxygen and at a temperature of, the stable compound of vanadium is also different, and reducing partial pressure of oxygen, to improve temperature advantageous
In being stabilized for trivalent barium oxide.In addition to this, also there are many non-stoichiometric oxides for vanadium, can use general formula VnO2n-1(3
≤ n≤9) indicate oxide of the same clan.In V2O4And V2O5Between, it is known to V3O5、V3O7、V4O7、V4O9、V5O9、V6O11、V6O13
Equal oxides.Industrial barium oxide is mainly V2O3、VO2And V2O5, wherein V2O5It is particularly important.
For vanadium because it is with excellent intensity, hardness and antifatigue effect, vanadium is widely used in steel, chemical industry, aviation
Equal fields.About 84% vanadium is dissolved into formation VC and VN in steel as alloying element for steel, refines crystal grain, inhibits bayesian
The development of body and pearlite increases martensite intensity, to improve the hardness of steel, intensity, toughness and wear resistance, produces
Product changes crystal grain based on vanadium iron and VN.Vanadium is mainly using V-Al system alloy as the structural material of representative, such as non-ferrous alloy
The alloys such as excellent high temperature Aircraft Structure Materials Ti-6Al-4V, Ti-8Al-1V-Mo and Ti-6Al-6V-2Sn.It is led for chemical industry
The vanadium product in domain mainly has V2O5、NH4VO3、V2O3、VOCl3And VCl4Deng as catalyst, colorant, high capacity cell
Electrode material.It is worth mentioning that vanadium is used as anode material of lithium battery or exploitation into supercapacitor etc. due to the multivalent state of vanadium
Energy storage device has many advantages, such as that charging is rapid, specific energy is high, cheap, has much application prospect.In addition, about 2% vanadium product
It is also applied to the fields such as medicine, protective materials and thin-film material.It is existing research shows that vfanadium compound has the function of para-insulin,
It can promote the synthesis of hepatic glycogen and muscle glycogen, inhibition hepatic glycogenolytic is glucose, promotes the synthesis of fat and inhibits fat
It decomposes.To sum up, vanadium and vanadium product mainly as additive be widely used for improving material property or accelerate chemically react into
Journey.
Vanadium resource is as a kind of important scarce resource in the world, without the vanadium mineral that can individually adopt, in nature
Distribution disperses very much, and main association is in sulphur navajoite VS2Or V2S5, lead navajoite (or vanadinite) Pb5(VO4)3C, vanadium marble KV2
(AlSi2O10)(OH)2, potassium vanadate uranium ore K2(UO2)(VO4)2·3H2In the mineral such as O and vanadium titano-magnetite.Total storage of global vanadium
Amount is 63,000,000 tons, and workable reserves is 10,200,000 tons.There are many raw material type for vanadium extraction, and 88% vanadium is from vanadium in the world
It is obtained in titanomagnetite, remaining vanadium extraction raw material has bone coal, dead catalyst, petroleum lime-ash, culm etc..Because vanadium raw materials type,
Mineral characteristic and wherein content of vanadium differs greatly, technique and the method that vanadium is extracted from vanadium-containing material are also varied, mainly have
Pyrometallurgical smelting, wet-leaching and the wet method combined extraction process of pyrogenic process-.
Currently, the production of vanadium slag is mainly carried out in world wide with pyrogenic process.Pyrometallurgical smelting is usually with vanadium titano-magnetite
Primary raw material obtains vanadium-bearing hot metal by blast furnace or other ironmaking processes, then is blown into converter oxygen and makes vanadium oxygen in metal
Change is enriched in slag.It is obtained when being bessemerized using duplex containing V2O58~20% vanadium slag and half steel containing C about 3.6% use
It obtains when single converter slag-making blowing containing V2O52~5% v-bearing steel slag and molten steel.Obtained vanadium slag or v-bearing steel slag is by roasting
Burning-leaching or the mode directly leached carry out subsequent extracted.
Patent document CN102086487A discloses a kind of vanadium slag treatment method of energy-saving and emission-reduction, will separate first with molten iron
1200 DEG C or more of high-temperature liquid state vanadium slag afterwards is placed in slag ladle, and sodium compound is then added into slag ladle, with water cooling supersonic speed
Or subsonic speed oxygen rifle is supplied oxygen into slag ladle, the V generated in vanadium slag2O5The water-soluble sodium vanadate of generation is reacted with the sodium compound of addition,
Finally the obtained bits containing water-soluble sodium vanadate, processing obtains V2O5.However, using supersonic speed or subsonic speed oxygen rifle to
It being supplied oxygen in slag ladle, the volume for being limited to vanadium slag slag ladle is smaller, and liquid vanadium slag will cause using high speed oxygen supply by lance and be blown out outside tank,
The effective use of vanadium slag is influenced, while the sodium compound being added can also drift outside tank during oxygen blown, influence sodium object
Utilization rate, and the mixed effect of sodium object and vanadium slag is very poor.Moreover, vanadium slag is placed in slag ladle by this method, this process
It will cause and carry out heat exchange between hot vanadium slag and air, slag ladle, the heat utilization efficiency of hot vanadium slag is low.
Summary of the invention
Present invention solves the technical problem that be vanadium slag production process vanadium oxygenation efficiency is low, thermal loss is big.
Technical proposal that the invention solves the above-mentioned problems be to provide sodium system vanadium slag converter producing and its subsequent leaching vanadium extraction
Method, step includes: to carry out phase blowing oxidation after molten iron is blended into converter, coolant, soda ash are added in converting process,
Vanadium oxidation separation is formed into vanadium slag, pours out half steel after a phase finishing blowing, vanadium slag containing sodium is stayed in converter, is added in converter
NaCl carries out second phase blowing oxidation, generates water-soluble sodium vanadate, and blowing oxidation is obtained through water logging containing vanadium leachate after terminating.
Wherein, Na in vanadium slag containing sodium after second phase blowing aoxidizes2O/V2O5Mass ratio is controlled 0.55~0.65.
Wherein, phase blowing aoxidizes and coolant is added in the preceding 3min after starting, and addition is pure in 2min after addition coolant
Alkali.
Wherein, the additional amount of coolant is 15~35kg/tFe, and soda ash additional amount is 5~6kg/tFe.
Wherein, for phase blowing oxidation process using top bottom with blowing, top blast carries out oxygen blast gas, bottom blowing nitrogen using oxygen rifle.
Wherein, rifle position is controlled using " high-low-high " mode when phase blowing oxidation process oxygen gun blowing, that is, is blown
0.5~1min early period uses high rifle position, and mid-term uses low rifle position, and 1.0~1.5min uses high rifle position before finishing blowing；Oxygen blast stream
Amount control is in 2.0~3.0m3/ (mintFe), 0.7~0.9MPa of oxygen pressure, oxygen blow duration are controlled in 5~6.5min.
Wherein, the control of bottom blowing nitrogen flow is in 0.1~0.5m3/(min·tFe)。
Wherein, second phase blowing 0.25~0.5kg/ of oxidation process soda ash additional amount 0.5~1.5kg/tFe, NaCl additional amount
tFe。
Wherein, second phase blowing oxidation uses bottom blowing oxygen, and bottom blowing oxygen flow is 0.25~0.75m3/ (mintFe),
Oxygen blow duration is controlled in 2~3min.
Wherein, by vanadium slag, cooling, broken, magnetic separation, ball milling, water logging are obtained containing vanadium leachate after second phase blowing oxidation.
Beneficial effects of the present invention are as follows:
The present invention is poured out using two phases blowing oxidation production Leaching of Vanadium from Vanadium slag containing sodium wherein soda ash is added in phase blowing oxidation
Second phase blowing oxidation is carried out using waste heat after half steel, soda ash, sodium chloride is added in second phase blowing oxidation, compared to traditional high-temperature roasting
Sodium vanadium extraction, the present invention can reduce operation quantity of the molten iron production containing vanadium leachate, can improve oxygenation efficiency, the reduction process of vanadium
Energy consumption, the utilization and vanadium extraction production cost for being conducive to resource reduce, are enterprise's save the cost, create benefit.
Specific embodiment
The present invention discloses the converter producing for providing sodium system vanadium slag and its subsequent method for leaching vanadium extraction, and step includes: in iron
After water is blended into converter, phase blowing oxidation is carried out, coolant, soda ash is added in converting process, vanadium oxidation separation is formed into vanadium slag,
Half steel is poured out after one phase finishing blowing, vanadium slag containing sodium is stayed in converter, and addition soda ash, NaCl carry out second phase blowing oxygen in converter
Change, generate water-soluble sodium vanadate, blowing oxidation is obtained through water logging containing vanadium leachate after terminating.
The process that the present invention produces the vanadium slag containing sodium carries out the blowing oxidation of two phases, and a phase is by the vanadium oxidation separation shape in molten iron
At vanadium slag, the second phase is the barium oxide aoxidized in vanadium slag under the state existing for no molten iron, by the V in vanadium slag2O3It is oxidized to
V2O5, and promote V2O5With Na2O generates water-soluble sodium vanadate.
Specifically, soda ash is added in the process of molten iron blowing vanadium slag by the present invention, sodium object can not only be made in vanadium slag
In be uniformly distributed, be conducive to the formation of subsequent sodium vanadate, and na oxide can aoxidize the vanadium in molten iron, improve the oxidation of vanadium
Rate, moreover reduced in vanadium slag containing viscosity after sodium salt, the metallic iron in vanadium slag can be settled preferably, and in oxygen blast, oxygen will not
Vanadium slag oxidation effectiveness is caused not reach requirement because of iron oxide.So soda ash is added in phase blowing oxidation process in the present invention
Purpose be the vanadium aoxidized in molten iron, and adjustment vanadium slag fusing point and mobility, promote slag iron separation, to be subsequently generated sodium vanadate
It is ready in advance.
Wherein, Na in vanadium slag containing sodium after phase blowing aoxidizes2O/V2O5Mass ratio is controlled 0.55~0.65.Soda ash
Na can be resolved into after addition under the high temperature conditions2O and CO2, only Na2O can be stayed in slag, therefore with Na2O is controlled.We
It is found by many experiments, by Na in vanadium slag containing sodium after second phase blowing oxidation2O/V2O5Mass ratio control 0.55~
0.65, the ratio highest of sodium vanadate is generated, most beneficial for the extraction of Vanadium in Vanadium Residue.
Wherein, phase blowing aoxidizes and coolant is added in the preceding 3min after starting, and addition is pure in 2min after addition coolant
Alkali.
Wherein, the additional amount of coolant is 15~35kg/tFe, and soda ash additional amount is 5~6kg/tFe.
The effect of coolant is to control in-furnace temperature in the reasonable scope, while can aoxidize in molten iron in the present invention
Vanadium.Preferably, the ferriferous oxides content such as coolant of the present invention optional iron scale, iron oxide red, high-grade iron ore is higher
One or more of substance mixture.
Wherein, for phase blowing oxidation process using top bottom with blowing, top blast carries out oxygen blast gas, bottom blowing nitrogen using oxygen rifle.
Wherein, rifle position is controlled using " high-low-high " mode when phase blowing oxidation process oxygen gun blowing, that is, is blown
0.5~1min early period uses high rifle position, and mid-term uses low rifle position, and 1.0~1.5min uses high rifle position before finishing blowing；Oxygen blast stream
Amount control is in 2.0~3.0m3/ (mintFe), 0.7~0.9MPa of oxygen pressure, oxygen blow duration are controlled in 5~6.5min.
" high-low-high " is one kind of present mode, and high rifle position is generally in 1.8~2.0m, and low rifle position is generally in 1.6~1.8m.
Wherein, the control of bottom blowing nitrogen flow is in 0.1~0.5m3/(min·tFe)。
Soda ash and sodium chloride is added in the second stage of converting process in the present invention, and there are two the effects of NaCl, first is that in adjustment slag
Sodium content ratio promotes the interaction of oxygen and slag, as far as possible by the V in vanadium slag second is that vanadium slag fusing point is reduced2O3Oxidation
At V2O5, soda ash reaches target in addition to the sodium vanadium ratio adjusted together in vanadium slag with NaCl, while soda ash also has certain oxidation
Property, vanadium can be aoxidized at high operating temperatures.Preferably, second phase blowing oxidation process soda ash additional amount 0.5~
0.25~0.5kg/tFe of 1.5kg/tFe, NaCl additional amount.
Wherein, second phase blowing oxidation uses bottom blowing oxygen, and bottom blowing oxygen flow is 0.25~0.75m3/ (mintFe),
Oxygen blow duration is controlled in 2~3min.
Wherein, by vanadium slag, cooling, broken, magnetic separation, ball milling, water logging are obtained containing vanadium leachate after second phase blowing oxidation.
Specifically, covering cooling after pouring into vanadium slag in vanadium slag tank, control cooling time is in 36~72h, cooling after vanadium slag oxygen blast
After by vanadium slag, broken, magnetic separation, ball milling are at 120 mesh fine powders, after fine powder mix with water by weight 1:3, leaching process is mixed
Liquid is using mechanical stirring (300~400r/min of rotating speed of agitator) and heats 85 ± 2 DEG C of temperature of holding, and vacuum pumping is carried out after 1.5h
Filter, gained filtrate are containing vanadium leachate.
For the initial molten iron temperature of the present invention at 1190~1360 DEG C, converting process temperature is no more than 1400 DEG C.
Below with reference to specific embodiment, the present invention is described in further detail.
Embodiment 1
After vanadium-bearing hot metal is blended into converter, oxygen blast smelting is carried out, coolant, soda ash is added in converting process, before blowing
Coolant 28kg/tFe is added in 3min, the interior addition soda ash 6kg/tFe of 2min after coolant is added, blowing oxidation process oxygen rifle is blown
Rifle position is controlled using " high-low-high " mode when oxygen, i.e. Primary period 1min uses high rifle position 2.0m, and mid-term uses low rifle
Position 1.6m, 1.5min uses high rifle position 1.9m before finishing blowing；Oxygen blast flow control is in 3.0m3/ (mintFe), oxygen pressure
0.9MPa, oxygen blow duration control are controlled in 5.5min, bottom blowing nitrogen flow in 0.35m3/(min·tFe).It will after finishing blowing
Half steel is poured out, and vanadium slag containing sodium is stayed in converter, soda ash 1kg/tFe, NaCl0.25kg/tFe is added in converter, using bottom blowing oxygen
Second phase blowing oxidation is carried out, bottom blowing oxygen flow is 0.65m3/ (mintFe), oxygen blow duration are controlled 2.5.After finishing blowing
By vanadium slag, cooling, broken, magnetic separation, ball milling, water logging are obtained containing vanadium leachate.Whole process vanadium oxygenation efficiency is 89.99%, V leaching rate
It is 95.23%.
Embodiment 2
After vanadium-bearing hot metal is blended into converter, oxygen blast smelting is carried out, coolant, soda ash is added in converting process, before blowing
Coolant 31kg/tFe is added in 3min, the interior addition soda ash 5kg/tFe of 2min after coolant is added, blowing oxidation process oxygen rifle is blown
Rifle position is controlled using " high-low-high " mode when oxygen, i.e. Primary period 1min uses high rifle position 2.0m, and mid-term uses low rifle
Position 1.7m, 1.5min uses high rifle position 1.9m before finishing blowing；Oxygen blast flow control is in 2.8m3/ (mintFe), oxygen pressure
0.86MPa, oxygen blow duration control are controlled in 5min, bottom blowing nitrogen flow in 0.15m3/(min·tFe).It will be partly after finishing blowing
Steel is poured out, and vanadium slag containing sodium is stayed in converter, soda ash 1.5kg/tFe, NaCl0.5kg/tFe is added in converter, using bottom blowing oxygen
Second phase blowing oxidation is carried out, bottom blowing oxygen flow is 0.25m3/ (mintFe), oxygen blow duration are controlled in 3min.Finishing blowing
By vanadium slag, cooling, broken, magnetic separation, ball milling, water logging are obtained containing vanadium leachate afterwards.Whole process vanadium oxygenation efficiency is 90.28%, and vanadium leaches
Rate is 94.86%.
Claims (10)
1. the converter producing of sodium system vanadium slag and its subsequent method for leaching vanadium extraction, it is characterised in that the following steps are included: by molten iron
Phase blowing oxidation is carried out after being blended into converter, coolant, soda ash is added in converting process, vanadium oxidation is separated and forms vanadium slag, one
Half steel is poured out after phase finishing blowing, vanadium slag containing sodium is stayed in converter, and addition soda ash, NaCl carry out second phase blowing oxygen in converter
Change, generate water-soluble sodium vanadate, blowing oxidation is obtained through water logging containing vanadium leachate after terminating.
2. the converter producing of sodium system according to claim 1 vanadium slag and its subsequent method for leaching vanadium extraction, which is characterized in that
Na in vanadium slag containing sodium after the second phase blowing oxidation2O/V2O5Mass ratio is controlled 0.55~0.65.
3. the converter producing of sodium system according to claim 1 or 2 vanadium slag and its subsequent method for leaching vanadium extraction, feature exist
In: the coolant is ferriferous oxide, preferably at least one of iron scale, iron oxide red, high-grade iron ore.
4. the converter producing of described in any item sodium systems vanadium slag and its subsequent method for leaching vanadium extraction according to claim 1~3,
Be characterized in that: the additional amount of the coolant is 15~35kg/tFe, and phase blowing oxidation soda ash additional amount is 5~6kg/tFe.
5. the converter producing of sodium system according to any one of claims 1 to 4 vanadium slag and its subsequent method for leaching vanadium extraction,
Be characterized in that: phase blowing aoxidizes and coolant is added in the preceding 3min after starting, addition soda ash in 2min after addition coolant.
6. the converter producing of described in any item sodium systems vanadium slag and its subsequent method for leaching vanadium extraction according to claim 1~5,
Be characterized in that: for the phase blowing oxidation process using top bottom with blowing, top blast carries out oxygen blast gas, bottom blowing nitrogen using oxygen rifle.
7. the converter producing of sodium system according to claim 6 vanadium slag and its subsequent method for leaching vanadium extraction, it is characterised in that:
Rifle position is controlled using " high-low-high " mode when oxygen gun blowing, i.e. 0.5~1min of Primary period uses high rifle position, and mid-term is adopted
With low rifle position, 1.0~1.5min uses high rifle position before finishing blowing；Oxygen blast flow control is in 2.0~3.0m3/ (mintFe),
0.7~0.9MPa of oxygen pressure, oxygen blow duration are controlled in 5~6.5min；Bottom blowing nitrogen flow is controlled in 0.1~0.5m3/
(min·tFe)。
8. the converter producing of described in any item sodium systems vanadium slag and its subsequent method for leaching vanadium extraction according to claim 1~7,
It is characterized in that: second phase blowing oxidation 0.25~0.5kg/tFe of the soda ash additional amount 0.5~1.5kg/tFe, NaCl additional amount.
9. the converter producing of described in any item sodium systems vanadium slag and its subsequent method for leaching vanadium extraction according to claim 1~8,
Be characterized in that: using bottom blowing oxygen, bottom blowing oxygen flow is 0.25~0.75m for the second phase blowing oxidation3/ (mintFe),
Oxygen blow duration is controlled in 2~3min.
10. the converter producing of described in any item sodium systems vanadium slag and its subsequent method for leaching vanadium extraction according to claim 1~9,
It is characterized by: by vanadium slag, cooling, broken, magnetic separation, ball milling, water logging obtain leaching containing vanadium after the second phase blowing oxidation
Liquid.
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| CN201910398320.XA CN110042190A (en) | 2019-05-14 | 2019-05-14 | The converter producing of sodium system vanadium slag and its subsequent method for leaching vanadium extraction |
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| CN201910398320.XA CN110042190A (en) | 2019-05-14 | 2019-05-14 | The converter producing of sodium system vanadium slag and its subsequent method for leaching vanadium extraction |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112359231A (en) * | 2020-10-27 | 2021-02-12 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for extracting vanadium by directly calcifying hot vanadium slag |
| CN112458298A (en) * | 2020-10-27 | 2021-03-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for extracting vanadium by direct sodium treatment of thermal vanadium slag |
| CN114293032A (en) * | 2021-11-22 | 2022-04-08 | 攀钢集团攀枝花钢铁研究院有限公司 | Grading treatment method for sodium vanadium slag |
| CN114317990A (en) * | 2021-12-30 | 2022-04-12 | 中国科学院过程工程研究所 | Method for extracting vanadium from vanadium-containing steel slag through sodium oxidation and water quenching |
-
2019
- 2019-05-14 CN CN201910398320.XA patent/CN110042190A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112359231A (en) * | 2020-10-27 | 2021-02-12 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for extracting vanadium by directly calcifying hot vanadium slag |
| CN112458298A (en) * | 2020-10-27 | 2021-03-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for extracting vanadium by direct sodium treatment of thermal vanadium slag |
| CN112458298B (en) * | 2020-10-27 | 2022-11-01 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for extracting vanadium by direct sodium treatment of hot vanadium slag |
| CN114293032A (en) * | 2021-11-22 | 2022-04-08 | 攀钢集团攀枝花钢铁研究院有限公司 | Grading treatment method for sodium vanadium slag |
| CN114317990A (en) * | 2021-12-30 | 2022-04-12 | 中国科学院过程工程研究所 | Method for extracting vanadium from vanadium-containing steel slag through sodium oxidation and water quenching |
| CN114317990B (en) * | 2021-12-30 | 2023-04-25 | 中国科学院过程工程研究所 | Method for extracting vanadium from vanadium-containing steel slag through sodium-treatment oxidation water quenching |
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