CN109971910A - Using the method for calcium system processing vanadium extraction from molten iron - Google Patents
Using the method for calcium system processing vanadium extraction from molten iron Download PDFInfo
- Publication number
- CN109971910A CN109971910A CN201910406166.6A CN201910406166A CN109971910A CN 109971910 A CN109971910 A CN 109971910A CN 201910406166 A CN201910406166 A CN 201910406166A CN 109971910 A CN109971910 A CN 109971910A
- Authority
- CN
- China
- Prior art keywords
- vanadium
- molten iron
- oxygen
- blowing
- slag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
- C22B7/007—Wet processes by acid leaching
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention belongs to Ferrous Metallurgy and vanadium titanium chemical technology fields, and in particular to using the method for calcium system processing vanadium extraction from molten iron.That the technical problem to be solved by the present invention is to the oxygenation efficiency of vanadium slag production process vanadium is low, Vanadium in Vanadium Residue leaching rate is low.The invention discloses the methods using calcium system processing vanadium extraction from molten iron.Step are as follows: molten iron is blended into converter, coolant, the blowing oxidation of lime one phase of progress is added, obtains vanadium slag and half steel, vanadium slag is poured into vanadium slag tank, oxygen is passed through after addition lime into vanadium slag tank and carries out second phase oxidation, obtain calcic vanadium slag after second phase oxidation.The present invention can reduce operation quantity of the molten iron production containing vanadium leachate, and the oxygenation efficiency and leaching rate, reduction Process Energy consumption, the utilization and vanadium extraction production cost for being conducive to resource that can improve vanadium reduce.
Description
Technical field
The invention belongs to Ferrous Metallurgy and vanadium titanium chemical technology fields, and in particular to handle the vanadium extraction from molten iron using calcium system
Method.
Background technique
Vanadium (V) is a kind of transiting group metal elements, and chemical property is more stable at normal temperature, relatively active under high temperature.Vanadium because
It is widely used in the fields such as steel, chemical industry, aviation with excellent intensity, hardness and antifatigue effect.About 84%
Vanadium is dissolved into formation VC and VN in steel as alloying element for steel, refines crystal grain, inhibits the development of bainite and pearlite
Increase martensite intensity, to improve the hardness of steel, intensity, toughness and wear resistance.Vanadium for non-ferrous alloy mainly with
V-Al system alloy is the structural material of representative, such as excellent high temperature Aircraft Structure Materials Ti-6Al-4V, Ti-8Al-1V-Mo and
The alloys such as Ti-6Al-6V-2Sn.Vanadium product for chemical field mainly has V2O5、NH4VO3、V2O3、VOCl3And VCl4Deng use
It is used as the electrode material of catalyst, colorant, high capacity cell.
Vanadium resource disperses very much in distributed in nature, main association in sulphur navajoite, lead navajoite, vanadium marble, potassium vanadate uranium ore with
And in the mineral such as vanadium titano-magnetite.Because of vanadium raw materials type, mineral characteristic and wherein content of vanadium differs greatly, and mentions from vanadium-containing material
It takes technique and the method for vanadium also varied, mainly there is pyrometallurgical smelting, wet-leaching and the wet method combined extraction process of pyrogenic process-.Fire
Method is smelted usually using vanadium titano-magnetite as primary raw material, obtains vanadium-bearing hot metal by blast furnace or other ironmaking processes, then in converter
In be blown into oxygen and make the vanadium oxidization enrichment in metal into slag, obtained vanadium slag or v-bearing steel slag is by roasting-leaching or directly
The mode of leaching carries out subsequent extracted.Wet-leaching is relatively specific for the wastes such as dead catalyst, flying dust and petroleum lime-ash, also has
It is applied in bone coal on a small quantity, the raw ores such as vanadium titano-magnetite, but since wherein vanadium all mainly exists in the form of the trivalent vanadium of indissoluble, directly
It is lower compared with pyrometallurgical smelting and the wet method combined extraction process rate of recovery of pyrogenic process-to connect leaching.Pyrogenic process-is wet method combined to be extracted it is generally necessary to will
Vanadium roasts under oxidizing atmosphere is converted to high price compound in favor of leaching, and the wet method combined extraction process of traditional pyrogenic process-has sodium
Salt roasting-water logging, blank roasting-acidleach (alkali leaching), few salt roasting-circulating leaching and calcium salt roasting-acidleach (alkali leaching) etc..
CN102086487A discloses a kind of vanadium slag treatment method of energy-saving and emission-reduction, comprising the following steps: firstly, will be with iron
1200 DEG C or more of high-temperature liquid state vanadium slag after water separation is placed in slag ladle；Then, sodium is added into slag ladle according to v slag grade
Then compound is supplied oxygen with water cooling supersonic speed or subsonic speed oxygen rifle into slag ladle, cause strong oxidizing property atmosphere, while can play and stir
The effect of mixing promotes to quickly generate water-soluble sodium vanadate in vanadium slag, is fully oxidized to most to guarantee that oxygen-supplying amount is greater than each component in slag
Oxygen amount needed for high oxide, the V that need to be generated using the FeO/TFe in slag as the index for examining degree of oxidation, in vanadium slag2O5
The water-soluble sodium vanadate of generation is reacted with the sodium compound of addition, finally, the obtained bits containing water-soluble sodium vanadate, processing
Obtain V2O5, wherein the dissolution rate of vanadium is 90~94%.But the above method joined a large amount of sodium compound: in sodium compound
Na2O and V2O5Molar ratio be 1~10, Na in embodiment2O and V2O5Molar ratio be 2.3~3, this is because sodium compound
At high temperature be easy decomposition gasification, at high temperature be added sodium compound will lead to sodium compound loss it is larger；Above-mentioned side simultaneously
The vanadium slag that the raw material of method can only use vanadium extraction by converter blowing to produce, production line is long, at high cost.
Summary of the invention
Low, Vanadium in Vanadium Residue leaching rate that the technical problem to be solved by the present invention is to the oxygenation efficiency of vanadium slag production process vanadium
It is low.
The vanadium extraction from molten iron is handled using calcium system the technical solution used to solve the technical problems of the present invention is that providing
Method.Include the following steps: for molten iron to be blended into converter, be added coolant, lime carry out a phase blowing oxidation, obtain vanadium slag and
Half steel pours into vanadium slag in vanadium slag tank, is passed through the second stage of oxidation of oxygen progress after lime is added into vanadium slag tank, second phase oxidation terminates
After obtain calcic vanadium slag.
Wherein, above-mentioned to be handled from the method for vanadium extraction in molten iron using calcium system, in phase blowing oxidation, the coolant
Additional amount is 20~35kg/tFe；The coolant is ferriferous oxide；The additional amount of the lime is 1~2kg/tFe.
Further, the coolant is added in the preceding 3min that a phase blows oxidation beginning, and 2min after coolant is added
Interior addition lime.
Wherein, above-mentioned to be handled from the method for vanadium extraction in molten iron using calcium system, the phase blowing oxidation is same using top bottom
It blows, top blast carries out oxygen blast gas, bottom blowing nitrogen using oxygen rifle.
Further, rifle position is controlled using " high-low-high " mode when the oxygen gun blowing, i.e., oxygen blast rifle position is being blown
0.5~1.5min that refining starts is 1.7~2.0m, and blowing mid-term is 1.6~1.8m, and 1.0~1.5min before finishing blowing is
1.7~2.0m；Top blast oxygen supply intensity is 2.0~3.0m3/ (mintFe), oxygen blow duration are 5~6.5min, and oxygen pressure is
0.7~0.9MPa；Bottom blowing nitrogen flow is 0.1~0.5m3/(min·tFe)。
Wherein, above-mentioned to be handled from the method for vanadium extraction in molten iron using calcium system, vanadium slag after the phase blowing oxidation
Middle CaO/V2O5Mass ratio is controlled 0.5~0.6.
Wherein, it is above-mentioned using calcium system processing from the method for vanadium extraction in molten iron, into vanadium slag tank be added lime amount be 1~
1.5kg/tFe。
Wherein, it is above-mentioned using calcium system processing from the method for vanadium extraction in molten iron, the flow for being passed through oxygen be 3~
10m3/min；Being passed through the time is 10~30min.
Wherein, above-mentioned to be handled from the method for vanadium extraction in molten iron using calcium system, after the second phase oxidation in vanadium slag
CaO/V2O5Mass ratio is controlled 0.55~0.75.
Wherein, above-mentioned to be handled from the method for vanadium extraction in molten iron using calcium system, calcic is being prepared using the above method
It is isolated to contain vanadium leachate by calcic vanadium slag through cooling, broken, magnetic separation, ball milling, acidleach after vanadium slag.
The beneficial effects of the present invention are:
Lime is added in phase blowing oxidation and uses top blast oxygen for the method for the present invention, and bottom blowing nitrogen will after finishing blowing
Vanadium slag pours into vanadium slag tank, is passed through the second stage of oxidation of oxygen progress, compared with prior art, this hair after lime is added into vanadium slag tank
Bright method can reduce operation quantity of the molten iron production containing vanadium leachate, can improve the oxygenation efficiency and leaching rate of vanadium, can be effective
Using the self-heating of vanadium slag, make V in vanadium slag2O3It is oxidized to V2O5, roasting bring heat is carried out after reduction vanadium slag is cooling again and is disappeared
Consumption, the utilization and vanadium extraction production cost for being conducive to resource reduce.
Specific embodiment
Specifically, including the following steps: the invention discloses the method using calcium system processing vanadium extraction from molten iron by molten iron
It is blended into converter, coolant, the blowing oxidation of lime one phase of progress is added, obtains vanadium slag and half steel, vanadium slag is poured into vanadium slag tank,
It is passed through the second stage of oxidation of oxygen progress after lime is added into vanadium slag tank, obtains calcic vanadium slag after second phase oxidation.
For the present invention using two phases blowing oxidation production calcic vanadium slag, phase blowing oxidation is by the vanadium oxidation separation in molten iron
Vanadium slag is formed, second phase oxidation is poured into vanadium slag in vanadium slag tank, oxygen, which is passed through, after addition lime into vanadium slag tank is aoxidized,
The barium oxide in vanadium slag is aoxidized under state existing for no molten iron, by the V in vanadium slag2O3It is oxidized to V2O5, and promote V2O5With CaO
Generate water-soluble calcium vanadate.
Wherein, above-mentioned to be handled from the method for vanadium extraction in molten iron using calcium system, in phase blowing oxidation, the coolant
Additional amount is 20~35kg/tFe；The coolant is ferriferous oxide；The additional amount of the lime is 1~2kg/tFe.The present invention
Lime is added into molten iron in phase blowing oxidation process, can not only improve slag state, moreover it is possible to be conducive to the shape of subsequent calcium vanadate
At, and the fusing point reduction of vanadium slag after lime is added, slag iron separation effect is good, and iron-content is few in slag, aoxidizes the process oxygen of vanadium slag
Utilization rate is higher.
Further, the coolant is added in the preceding 3min that a phase blows oxidation beginning, and 2min after coolant is added
Interior addition lime.Be added coolant purpose be in order to control molten iron temperature, and aoxidize the vanadium in molten iron formed vanadium slag.
Wherein, above-mentioned to be handled from the method for vanadium extraction in molten iron using calcium system, the phase blowing oxidation is same using top bottom
It blows, top blast carries out oxygen blast gas, bottom blowing nitrogen using oxygen rifle.
Further, rifle position is controlled using " high-low-high " mode when the oxygen gun blowing, i.e., oxygen blast rifle position is being blown
0.5~1.5min that refining starts is 1.7~2.0m, and blowing mid-term is 1.6~1.8m, too dry 1.0 before finishing blowing~
1.5min is 1.7~2.0m；Top blast oxygen supply intensity is 2.0~3.0m3/ (mintFe), oxygen blow duration are 5~6.5min, oxygen
Atmospheric pressure is 0.7~0.9MPa；Bottom blowing nitrogen flow is 0.1~0.5m3/(min·tFe).The present invention utilizes height in converter
Pressure oxygen blow to vanadium slag, mixing effect greatly improves so that in slag CaO mix it is more uniform, be more advantageous to from iron
Water oxygen vanadium obtains vanadium slag.
Wherein, above-mentioned to be handled from the method for vanadium extraction in molten iron using calcium system, vanadium slag after the phase blowing oxidation
Middle CaO/V2O5Mass ratio is controlled 0.5~0.6.In order to avoid vanadium slag is too dry, it is unfavorable for later period blowing；Vanadium slag is too dilute, is tapping
Vanadium slag is caused to be lost in the process, the present invention is after a phase blowing oxidation by CaO/V in vanadium slag2O5Mass ratio control 0.5~
0.6, so that vanadium slag is able to maintain good slag state.
Wherein, it is above-mentioned using calcium system processing from the method for vanadium extraction in molten iron, into vanadium slag tank be added lime amount be 1~
1.5kg/tFe.The V that the lime and oxidation being added into vanadium slag tank generate2O5Calcium vanadate is generated, while can reduce vanadium slag fusing point,
Be conducive to oxidation of the oxygen to vanadium slag.
Wherein, it is above-mentioned using calcium system processing from the method for vanadium extraction in molten iron, the flow for being passed through oxygen be 3~
10m3/min；Being passed through the time is 10~30min.It in the present invention, is in order to by the V in vanadium slag using second phase oxidation2O3It is oxidized to
V2O5, and promote V2O5Water-soluble calcium vanadate is generated with CaO.Second phase of the invention, which aoxidizes, is passed through dioxygen oxidation vanadium into vanadium slag tank
Slag, it is possible to reduce the converter activity duration, avoiding blowing vanadium slag influences rhythm of production.
Wherein, above-mentioned to be handled from the method for vanadium extraction in molten iron using calcium system, after the second phase oxidation in vanadium slag
CaO/V2O5Mass ratio is controlled 0.55~0.75.Inventor is had found by a large number of experiments, by calcic vanadium slag after second phase oxidation
Middle CaO/V2O5Mass ratio is controlled 0.55~0.75, the ratio highest of calcium vanadate is generated, most beneficial for the extraction of Vanadium in Vanadium Residue.
Wherein, above-mentioned to be handled from the method for vanadium extraction in molten iron using calcium system, calcic is being prepared using the above method
It is isolated to contain vanadium leachate by calcic vanadium slag through cooling, broken, magnetic separation, ball milling, acidleach after vanadium slag.
In the present invention, initial molten iron temperature is generally 1190~1360 DEG C, and converting process temperature is no more than 1400 DEG C.
The present invention will further be elaborated by specific embodiment below.
Embodiment 1
Molten iron is blended into converter, oxygen blast oxidation is carried out using oxygen rifle, addition 26kg/tFe is cold in 3min before oxygen blast starts
But the interior addition 2kg/tFe lime of 2min after coolant is added in agent.It is blown using top blast oxygen bottom blowing nitrogen, rifle when oxygen gun blowing
Position is controlled using " high-low-high " mode, i.e., oxygen blast rifle position is 1.7m in the 1.5min that blowing starts, and blowing mid-term is
1.65m, the 1.0min before finishing blowing are 1.7m.The control of top blast oxygen supply intensity is 3.0m3/ (mintFe), oxygen blow duration control
System is controlled in 5.5min, oxygen pressure 0.9MPa, bottom blowing nitrogen flow in 0.1~0.5m3/(min·tFe)。
After finishing blowing, vanadium slag is poured into vanadium slag tank, capping heat is stewing after 1.5kg/tFe lime is added, while leading in tank
Enter oxygen, oxygen flow 10m3/ min, being passed through the time is 20min, then by the cooling 72h of vanadium slag, by vanadium slag after cooling
Broken, magnetic separation, ball milling after fine powder is mixed with water by weight 1:2, are soaked at 120 mesh fine powders using the sulfuric acid solution of 1:1
Out, between 2.8~3.2, leaching process mixed liquor uses mechanical stirring (300~400r/min of rotating speed of agitator) for pH value control
And 50 ± 2 DEG C of temperature of holding is heated, it is filtered by vacuum after 1h, gained filtrate is containing vanadium leachate.The oxygenation efficiency of whole process vanadium
It is 89.86%, V leaching rate 94.39%.
Embodiment 2
Molten iron is blended into converter, oxygen blast oxidation is carried out using oxygen rifle, addition 29kg/tFe is cold in 3min before oxygen blast starts
But the interior addition 1.5kg/tFe lime of 2min after coolant is added in agent.It is blown using top blast oxygen bottom blowing nitrogen, when oxygen gun blowing
Rifle position is controlled using " high-low-high " mode, i.e., oxygen blast rifle position is 1.9m in the 1min that blowing starts, and blowing mid-term is
1.8m, the 1.0min before finishing blowing are 1.9m.The control of top blast oxygen supply intensity is 3.0m3/ (mintFe), oxygen blow duration control
In 5.5min, oxygen pressure 0.8MPa, bottom blowing nitrogen flow is controlled in 0.35m3/(min·tFe)。
After finishing blowing, vanadium slag is poured into vanadium slag tank, capping heat is stewing after 1.5kg/tFe lime is added, while leading in tank
Enter oxygen, oxygen flow 8m3/ min, being passed through the time is 25min, then by the cooling 72h of vanadium slag, is broken vanadium slag after cooling
Broken, magnetic separation, ball milling after fine powder is mixed with water by weight 1:2, are leached at 120 mesh fine powders using the sulfuric acid solution of 1:1,
PH value controls between 2.8~3.2, and leaching process mixed liquor uses mechanical stirring (300~400r/min of rotating speed of agitator) simultaneously
Heating is kept for 50 ± 2 DEG C of temperature, is filtered by vacuum after 1h, and gained filtrate is containing vanadium leachate.The oxygenation efficiency of whole process vanadium is
89.76%, V leaching rate 94.18%.
Claims (10)
1. using the method for calcium system processing vanadium extraction from molten iron, it is characterised in that include the following steps: for molten iron to be blended into converter,
Coolant, the blowing oxidation of lime one phase of progress is added, obtains vanadium slag and half steel, vanadium slag is poured into vanadium slag tank, into vanadium slag tank
It is passed through the second stage of oxidation of oxygen progress after lime is added, obtains calcic vanadium slag after second phase oxidation.
2. the method according to claim 1 using calcium system processing vanadium extraction from molten iron, it is characterised in that: phase blowing oxygen
In change, the additional amount of the coolant is 20~35kg/tFe；The coolant is ferriferous oxide；The additional amount of the lime is
1~2kg/tFe.
3. the method according to claim 1 or 2 using calcium system processing vanadium extraction from molten iron, it is characterised in that: described cold
But agent is added in the preceding 3min that a phase blows oxidation beginning, and lime is added in 2min after addition coolant.
4. described in any item methods using calcium system processing vanadium extraction from molten iron according to claim 1~3, it is characterised in that:
Using top bottom with blowing, top blast carries out oxygen blast gas, bottom blowing nitrogen using oxygen rifle for the one phase blowing oxidation.
5. the method according to claim 4 using calcium system processing vanadium extraction from molten iron, it is characterised in that: the oxygen rifle is blown
Rifle position is controlled using " high-low-high " mode when oxygen, i.e., oxygen blast rifle position 0.5~1.5min that blowing starts be 1.7~
2.0m, blowing mid-term are 1.6~1.8m, and 1.0~1.5min before finishing blowing is 1.7~2.0m；Top blast oxygen supply intensity is 2.0
~3.0m3/ (mintFe), oxygen blow duration are 5~6.5min, and oxygen pressure is 0.7~0.9MPa；Bottom blowing nitrogen flow is
0.1~0.5m3/(min·tFe)。
6. described in any item methods using calcium system processing vanadium extraction from molten iron according to claim 1~5, it is characterised in that:
CaO/V in vanadium slag after the one phase blowing oxidation2O5Mass ratio is controlled 0.5~0.6.
7. described in any item methods using calcium system processing vanadium extraction from molten iron according to claim 1~6, it is characterised in that:
The amount that lime is added into vanadium slag tank is 1~1.5kg/tFe.
8. described in any item methods using calcium system processing vanadium extraction from molten iron according to claim 1~7, it is characterised in that:
The flow for being passed through oxygen is 3~10m3/min；Being passed through the time is 10~30min.
9. described in any item methods using calcium system processing vanadium extraction from molten iron according to claim 1~8, it is characterised in that:
CaO/V in vanadium slag after the second phase oxidation2O5Mass ratio is controlled 0.55~0.75.
10. using the method for calcium system processing vanadium extraction from molten iron, it is characterised in that: on the basis of any one of claim 1~9
On, it is isolated to contain vanadium leachate by calcic vanadium slag through cooling, broken, magnetic separation, ball milling, acidleach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910406166.6A CN109971910A (en) | 2019-05-16 | 2019-05-16 | Using the method for calcium system processing vanadium extraction from molten iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910406166.6A CN109971910A (en) | 2019-05-16 | 2019-05-16 | Using the method for calcium system processing vanadium extraction from molten iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109971910A true CN109971910A (en) | 2019-07-05 |
Family
ID=67073721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910406166.6A Withdrawn CN109971910A (en) | 2019-05-16 | 2019-05-16 | Using the method for calcium system processing vanadium extraction from molten iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109971910A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111575434A (en) * | 2020-06-30 | 2020-08-25 | 武钢集团昆明钢铁股份有限公司 | Converter smelting method for vanadium extraction slag grade of molten vanadium iron in medium silicon |
| WO2020228750A1 (en) * | 2019-05-16 | 2020-11-19 | 成都先进金属材料产业技术研究院有限公司 | Method for producing calcium-containing vanadium slag by adding lime to converter molten iron and leaching method therefor |
| CN113502360A (en) * | 2021-07-20 | 2021-10-15 | 北京中航天业科技有限公司 | Treatment system and treatment method of high-temperature steel slag |
-
2019
- 2019-05-16 CN CN201910406166.6A patent/CN109971910A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020228750A1 (en) * | 2019-05-16 | 2020-11-19 | 成都先进金属材料产业技术研究院有限公司 | Method for producing calcium-containing vanadium slag by adding lime to converter molten iron and leaching method therefor |
| CN111575434A (en) * | 2020-06-30 | 2020-08-25 | 武钢集团昆明钢铁股份有限公司 | Converter smelting method for vanadium extraction slag grade of molten vanadium iron in medium silicon |
| CN111575434B (en) * | 2020-06-30 | 2022-01-25 | 武钢集团昆明钢铁股份有限公司 | Converter smelting method for vanadium extraction slag grade of molten vanadium iron in medium silicon |
| CN113502360A (en) * | 2021-07-20 | 2021-10-15 | 北京中航天业科技有限公司 | Treatment system and treatment method of high-temperature steel slag |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102251070B (en) | Method for implementing efficient extraction of vanadium from converter through CO2 | |
| CN105039633A (en) | Method for extracting vanadium from converter | |
| CN110055371A (en) | The method that molten iron production vanadium slag containing sodium directly leaches vanadium extraction | |
| CN109971910A (en) | Using the method for calcium system processing vanadium extraction from molten iron | |
| CN109971908A (en) | Converter molten iron adds the method for soda manufacture vanadium slag containing sodium | |
| CN102086487B (en) | Vanadium slag treatment method capable of saving energy and reducing emission | |
| CN110042190A (en) | The converter producing of sodium system vanadium slag and its subsequent method for leaching vanadium extraction | |
| CN104831091B (en) | A kind of method of combined blown converter vanadium extraction | |
| CN110042193A (en) | The converter producing of calcium system vanadium slag and its subsequent leaching extraction vanadium method | |
| CN110106305A (en) | The method that calcium system handles vanadium-bearing hot metal production calcic vanadium slag and directly leaches vanadium extraction | |
| CN110055373A (en) | The converter producing and its leaching extraction vanadium method of calcium system vanadium slag | |
| CN108048618A (en) | A kind of converter CO2The method of vanadium extraction | |
| CN106065436A (en) | A kind of method and system processing vanadium slag | |
| CN104862442B (en) | A kind of method of combined blown converter vanadium extraction | |
| CN104294055A (en) | Method for extracting vanadium from vanadium slag | |
| CN110106307A (en) | Using the extraction vanadium method of sodium salt processing vanadium-bearing hot metal | |
| CN110079643A (en) | Using the method for lime treatment vanadium-bearing hot metal vanadium extraction | |
| CN110042195A (en) | The method that molten iron adds lime production calcic vanadium slag and directly leaches vanadium extraction | |
| CN110042194A (en) | The production of converter calcic vanadium slag and its subsequent leaching extraction vanadium method | |
| CN108179245A (en) | A kind of composite air supply vanadium extraction by converter blowing method | |
| CN109971912A (en) | Converter molten iron adds the method for lime production calcic vanadium slag and its leaching | |
| CN106834728A (en) | Process the method and system of vanadium chromium slag | |
| CN105385861A (en) | Oxidation and calcification treatment method for vanadium slag | |
| CN105219974A (en) | A kind of raising vanadium slag V 2o 5the method of content | |
| CN110042191A (en) | The method of converter producing vanadium slag containing sodium and its Oxidation Leaching |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190705 |
|
| WW01 | Invention patent application withdrawn after publication |