CN106636628A - Treatment system and method for vanadium extraction tailings - Google Patents
Treatment system and method for vanadium extraction tailings Download PDFInfo
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- CN106636628A CN106636628A CN201611100286.6A CN201611100286A CN106636628A CN 106636628 A CN106636628 A CN 106636628A CN 201611100286 A CN201611100286 A CN 201611100286A CN 106636628 A CN106636628 A CN 106636628A
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- tailings
- vanadium extraction
- pelletizing
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Classifications
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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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/2406—Binding; Briquetting ; Granulating pelletizing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
-
- 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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/248—Binding; Briquetting ; Granulating of metal scrap or alloys
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a treatment system and method for vanadium extraction tailings. The system comprises a blending device, a pelletizing device, a reduction device and an ore grinding and magnetic separation device which are sequentially connected. The method comprises the steps that the vanadium extraction tailings, titanium concentrate and a carbonaceous reducing agent are blended in the blending device, so that a blended material is obtained; the blended material is pelletized in the pelletizing device to obtain pellets; the pellets are subjected to reduction treatment in a reduction furnace, so that metalized pellets are obtained; and the metalized pellets are treated through the ore grinding and magnetic separation device, and metallic iron powder and titanium tailings are obtained. By adding the titanium concentrate, the technical problem that the titanium recovery rate of low-titanium-content vanadium extraction tailings is low is solved, the recovery rate can reach 98% or over, and the novel method for comprehensive recycling of the vanadium extraction tailings is provided.
Description
Technical field
The present invention relates to metal smelt field, and in particular to a kind of processing system and method for tailings in vanadium extraction.
Background technology
Tailings in vanadium extraction be Converter Vanadium-bearing Slag after the operations such as sodium oxide baking, acidleach extract barium oxide, produce
Raw solid waste.Climb steel vanadium titano-magnetite and smelt in blast furnace and pig iron containing vanadium is obtained, then by selective oxidation molten iron
Make to enter slag after vanadium oxidation, obtain the vanadium slag that pentoxide content is 14～22wt% (wt% is mass percent), Jing
Leached mud, i.e. tailings in vanadium extraction are obtained after sodium oxide baking, leaching.Tailings in vanadium extraction about 30 about discharges every year in national vanadium extraction enterprise
Ten thousand tons, and with the continuous expansion of vanadium extraction enterprise production capacity, the discharge capacity of tailings in vanadium extraction also will be gradually stepped up.Tailings in vanadium extraction it is normal
Year piles up, and not only occupies a large amount of soils, and can cause environmental pollution.
At present, processing tailings in vanadium extraction can adopt two lines：Tailings in vanadium extraction is outwards sold；Tailings in vanadium extraction is circulated in iron and steel life
The valuable element such as vanadium and iron is reclaimed during product.On the one hand, iron and the higher (TFe of silicone content in tailings in vanadium extraction>30%, SiO2Contain
Measure as 15～20wt%), and alkali metal (Na2O+CaO) content is high, and ore deposit phase and composition are extremely complex, cause the comprehensive of tailings in vanadium extraction
Close producing level not high.On the other hand, there is the contradiction that supply exceed demand, sale one in the selling market of current tailings in vanadium extraction
Directly it is in the dock, tailings in vanadium extraction can be caused to block up storehouse when serious, threatens the normal operation of vanadium products factory.Thus, tailings in vanadium extraction
Comprehensive utilization process it is extremely urgent.
At present, existing lot of documents describes the technology that tailings in vanadium extraction proposes iron and vanadium extraction.However, for extraction tailings in vanadium extraction
In titanium elements, study less in conventional document or patent.Ti content is typically in 10～20wt% in tailings in vanadium extraction, close to
Ti content in the vanadium titanium sea sand ore deposit of some low titaniums, with certain recovery value.
The content of the invention
In view of the above problems, the present invention is intended to provide the processing system and method for a kind of tailings in vanadium extraction, for tailings in vanadium extraction
In titanium and the valuable element such as iron reclaimed.
The invention provides a kind of processing system of tailings in vanadium extraction, including mixing arrangement, palletizing device, reduction furnace, ore grinding
Concentration equipment；
The mixing arrangement is provided with tailings in vanadium extraction entrance, ilmenite concentrate entrance, carbonaceous reducing agent entrance, mixed material outlet；
The palletizing device is provided with mixed material entrance, pelletizing outlet；The mixed material entrance and the mixing arrangement
Mixed material outlet connection；
The reduction furnace is provided with pelletizing entrance, metallized pellet outlet；The ball of the pelletizing entrance and the palletizing device
Group's outlet connection；
The mill ore magnetic selection device is provided with metallized pellet entrance, metal iron powder outlet, titanium slag outlet；The metallization ball
Group's entrance is connected with the metallized pellet outlet of the reduction furnace.
Preferably, the palletizing device is for disc balling machine or to roll-in ball machine；The reduction furnace is rotary kiln, tunnel cave
Or the one kind in rotary hearth furnace；The mill ore magnetic selection device is the linkage of ball mill and magnetic separator.
Present invention also offers a kind of method that utilization said system processes tailings in vanadium extraction, including step：
Blend step：The tailings in vanadium extraction, ilmenite concentrate, carbonaceous reducing agent are mixed in the mixing arrangement, is mixed
Compound material；
Pelletizing step：The mixed material is sent in the palletizing device, Jing after pelletizing process, pelletizing is obtained；
Reduction step：The pelletizing is sent in the reduction furnace carries out reduction reaction, obtains metallized pellet；
Mill ore magnetic selection step：The metallized pellet is sent in the mill ore magnetic selection device and is processed, obtain metal
Iron powder and titanium slag.
In the method for above-mentioned process tailings in vanadium extraction, the mass ratio of each component is in the mixed material：Tailings in vanadium extraction：Titanium essence
Ore deposit：Carbonaceous reducing agent=100：60～150：20～30.
In the method for above-mentioned process tailings in vanadium extraction, in the blend step, TiO in the ilmenite concentrate2Mass content >=
45%.
In the method for above-mentioned process tailings in vanadium extraction, in the blend step, TiO in the tailings in vanadium extraction2Mass content
For 10～20%.
In the method for above-mentioned process tailings in vanadium extraction, the temperature of reduction reaction is 1350～1450 DEG C in the reduction step,
It is preferred that the temperature of reduction reaction is 1350～1400 DEG C.
In the method for above-mentioned process tailings in vanadium extraction, the TFe >=96wt% in the metal iron powder.
In the method for above-mentioned process tailings in vanadium extraction, the TiO in the titanium slag2Content ＞ 50wt%.
TiO in the raw material tailings in vanadium extraction of the present invention2Content is 10～20wt%, is difficult to extract profit with conventional technique means
With.By allocating ilmenite concentrate into, titanium therein synthesis content can be improved using direct-reduction-mill ore magnetic selection, and be carried
Main component ferro element and rare metal titanium elements in vanadium tailing soil.
The present invention solves the low technical barrier of the titanium elements rate of recovery in low titanium content tailings in vanadium extraction by allocating ilmenite concentrate into,
The rate of recovery can reach more than 98%, there is provided a kind of new method of tailings in vanadium extraction comprehensive reutilization.
Description of the drawings
Fig. 1 is the processing system schematic diagram of tailings in vanadium extraction in the present invention.
Fig. 2 is the processing method process chart of tailings in vanadium extraction in the present invention.
Reference in accompanying drawing is as follows：
1st, mixing arrangement；2nd, palletizing device；3rd, reduction furnace；4th, mill ore magnetic selection device.
Specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in more details, so as to energy
Enough more fully understand the solution of the present invention and the advantage of its various aspects.However, specific embodiments described below and reality
It is only descriptive purpose to apply example, rather than limitation of the present invention.
As shown in figure 1, for the processing system schematic diagram of tailings in vanadium extraction in the present invention, including mixing arrangement 1, palletizing device 2,
Reduction furnace 3, mill ore magnetic selection device 4.
Mixing arrangement 1 is used to mix tailings in vanadium extraction, ilmenite concentrate, carbonaceous reducing agent, obtains mixed material.The mixing arrangement 1
With tailings in vanadium extraction entrance, ilmenite concentrate entrance, carbonaceous reducing agent entrance, mixed material outlet.
Palletizing device 2 is used for the forming processes of mixed material, and pelletizing is obtained, and disk pelletizing is selected in the embodiment of the present invention
Machine or to roll-in ball machine.There is the palletizing device 2 mixed material entrance, pelletizing to export.Wherein, mixed material entrance with mix dress
Put 1 mixed material outlet connection.
Reduction furnace 3 is used to carry out reduction roasting process to pelletizing, and metallized pellet is obtained.Reduction furnace 3 include rotary hearth furnace,
Car-bottom furnace, tunnel cave, rotary kiln and other there is the kiln of restoring function, rotary kiln, tunnel are selected in the embodiment of the present invention
One kind in kiln or rotary hearth furnace.There is reduction furnace 3 pelletizing entrance, metallized pellet to export.Wherein, pelletizing entrance and palletizing device
2 pelletizing outlet connection.
Mill ore magnetic selection device 4 is used to carry out mill ore magnetic selection process to metallized pellet, and metal iron powder and titanium slag is obtained, this
From ball mill and the linkage of magnetic separator in inventive embodiments.Mill ore magnetic selection device 4 has metallized pellet entrance, metal
Iron powder outlet, titanium slag outlet.Wherein, metallized pellet entrance is connected with the metallized pellet outlet of reduction furnace 3.
Present invention also offers the method that the system shown in a kind of utilization Fig. 1 processes tailings in vanadium extraction, the technique stream of the method
The visible Fig. 2 of journey figure, comprises the steps：
(1) mix
By tailings in vanadium extraction, ilmenite concentrate, carbonaceous reducing agent respectively via tailings in vanadium extraction entrance, ilmenite concentrate entrance, carbonaceous reduction
Agent entrance is sent in mixing arrangement 1 and is mixed, and mixed material is obtained.
Also, the mass ratio of tailings in vanadium extraction, ilmenite concentrate, carbonaceous reducing agent is 100：60～150：20～30, as mix
The composition of material.
The quality proportioning of ilmenite concentrate is less than 60, TiO in the titanium slag for finally giving2Grade it is too low, further enrichment is processed
It is more difficult；On the one hand the quality proportioning of ilmenite concentrate is higher than 150, another by experimental studies have found that be unfavorable for mixed material pelletizing
Aspect can cause the fusing point of mixed material too high, be unfavorable for reduction and the agglomeration of iron, so as to be greatly reduced at sequential reduction
The index of reason.The quality proportioning of carbonaceous reducing agent is less than 20, and reduction reaction can be caused insufficient；Higher than 30, carbonaceous reducing agent mistake
Amount is wasted, and can affect the quality of titanium slag.
Tailings in vanadium extraction in the step is what Converter Vanadium-bearing Slag was obtained after oxidizing roasting, wet-leaching, extraction oxidation alum
Residue.TiO in the tailings in vanadium extraction2Mass content be 10～20%, extraction and application is difficult with conventional technique means, by matching somebody with somebody
Enter the titanium synthesis content that ilmenite concentrate is improved in mixed material, the extracted amount of titanium and iron in tailings in vanadium extraction can be improved.Wherein, the present invention
From ilmenite concentrate in, TiO2Mass content >=45%.
(2) pelletizing
The mixed material that above-mentioned steps are obtained is sent in palletizing device 2, Jing after pelletizing process, pelletizing is obtained.Due to
Jing after pelletizing process obtains pelletizing, the gas permeability of material improves mixed material, is conducive to the reduction of material in reduction process.
(3) reduce
The pelletizing that above-mentioned steps are obtained is sent in reduction furnace 3 and carries out reduction reaction, obtains metallized pellet.
The temperature of reduction reaction is 1350～1450 DEG C in this step, and preferable temperature is 1350～1400 DEG C.Inventor is led to
Cross experimental studies have found that, for high TiO in the present invention2For the mixed material of content, because it has higher viscosity, therefore need
Will higher temperature reduced and just can obtain higher technical indicator.In view of the dual consideration of reduction reaction and energy consumption, finally
By experiment determination reduction temperature between 1350～1450 DEG C, preferably 1350～1400 DEG C.
Wherein, the iron in tailings in vanadium extraction is mainly with trivalent form：Fe2O3Exist, the iron in ilmenite concentrate is with bivalent form：
FeTiO3Exist.In reduction furnace 3, there is following reaction and obtain metallized pellet：
Fe2O3+ 3C=2Fe+3CO
FeTiO3+ C=Fe+TiO2+CO
(4) mill ore magnetic selection
The metallized pellet that above-mentioned steps are obtained is sent in mill ore magnetic selection device 4 and is processed, and metal iron powder is obtained
And titanium slag.
Titanium slag prepared according to the methods of the invention and metal iron powder, TiO in titanium slag2Mass content be more than 50%, TiO2
The rate of recovery is more than 98%；TFe >=96wt% in metal iron powder, the TFe rate of recovery is more than 98%.
Wherein, can be directly as the raw material of steel-making after metal iron powder briquetting.Titanium slag is processed through conventional ore-dressing technique, is obtained
To TiO2Rich-titanium material of the mass content more than 70%, can be used as the raw material of production titanium white.
Embodiment 1
By tailings in vanadium extraction (TFe 38wt%, TiO212wt%), ilmenite concentrate (TiO245wt%), after anthracite is mixed
The pelletizing in granulating disc, obtains pelletizing.Wherein, the mass ratio of each component is：Tailings in vanadium extraction：Ilmenite concentrate：Anthracite=
100：60：20.The reduction roasting at 1350 DEG C in rotary hearth furnace after pelletizing drying, obtains metallized pellet.Then, using ball milling
Machine carries out mill ore magnetic selection with the linkage of magnetic separator to metallized pellet, obtains metal iron powder and titanium slag.Gained metal iron powder
Middle Iron grade is 97.8%, and the rate of recovery is 97.5%；In titanium slag, TiO2Mass fraction is 55.3%, and the rate of recovery is 98.8%.
Embodiment 2
By tailings in vanadium extraction (TFe 30wt%, TiO215wt%), ilmenite concentrate (TiO247wt%), after coke is mixed, profit
Pressure ball is carried out with to roll-in ball machine, pelletizing is obtained.Wherein, the mass ratio of each component is：Tailings in vanadium extraction：Ilmenite concentrate：Coke=
100：100：25.The reduction roasting at 1400 DEG C in rotary kiln after pelletizing drying, obtains metallized pellet.Then, using ball
Grinding machine carries out mill ore magnetic selection with the linkage of magnetic separator to metallized pellet, obtains metal iron powder and titanium slag.Gained metallic iron
Iron grade is 98.6% in powder, and the rate of recovery is 98.3%；In titanium slag, TiO2Mass fraction is 58.4%, and the rate of recovery is 99.3%.
Embodiment 3
By tailings in vanadium extraction (TFe 35wt%, TiO219wt%), ilmenite concentrate (TiO250wt%), semi-coke mix after
Pelletizing in granulating disc, obtains pelletizing.Wherein, the mass ratio of each component is：Tailings in vanadium extraction：Ilmenite concentrate：Semi-coke=100：
150：30.The reduction roasting at 1450 DEG C in tunnel cave after pelletizing drying, obtains metallized pellet.Then, using ball mill
Mill ore magnetic selection is carried out to metallized pellet with the linkage of magnetic separator, metal iron powder and titanium slag is obtained.In gained metal iron powder
Iron grade is 99.1%, and the rate of recovery is 98.6%；In titanium slag, TiO2Mass fraction is 60.6%, and the rate of recovery is 99.8%.
Embodiment 4
By tailings in vanadium extraction (TFe 40wt%, TiO210wt%), ilmenite concentrate (TiO248wt%), after bituminous coal is mixed, profit
Pressure ball is carried out with to roll-in ball machine, pelletizing is obtained.Wherein, the mass ratio of each component is：Tailings in vanadium extraction：Ilmenite concentrate：Bituminous coal=
100：125：28.The reduction roasting at 1425 DEG C in rotary hearth furnace after pelletizing drying, obtains metallized pellet.Then, using ball
Grinding machine carries out mill ore magnetic selection with the linkage of magnetic separator to metallized pellet, obtains metal iron powder and titanium slag.Gained metallic iron
Powder Iron grade is 99.5%, and the rate of recovery is 99.3%；In titanium slag, TiO2Mass fraction is 56.7%, and the rate of recovery is 99.3%.
It should be noted that each embodiment above by reference to described by accompanying drawing is only to illustrate rather than restriction originally
The scope of invention, it will be understood by those within the art that, it is right under the premise without departing from the spirit and scope of the present invention
Modification or equivalent that the present invention is carried out, all should cover within the scope of the present invention.Additionally, indication unless the context
Outward, the word for occurring in the singular includes plural form, and vice versa.In addition, unless stated otherwise, then any embodiment
All or part of can with reference to any other embodiment all or part of using.
Claims (9)
1. a kind of processing system of tailings in vanadium extraction, it is characterised in that the system include mixing arrangement, palletizing device, reduction furnace,
Mill ore magnetic selection device；
The mixing arrangement is provided with tailings in vanadium extraction entrance, ilmenite concentrate entrance, carbonaceous reducing agent entrance, mixed material outlet；
The palletizing device is provided with mixed material entrance, pelletizing outlet；The mixed material entrance is mixed with the mixing arrangement
Close material outlet connection；
The reduction furnace is provided with pelletizing entrance, metallized pellet outlet；The pelletizing entrance goes out with the pelletizing of the palletizing device
Mouth connection；
The mill ore magnetic selection device is provided with metallized pellet entrance, metal iron powder outlet, titanium slag outlet；The metallized pellet enters
Mouth is connected with the metallized pellet outlet of the reduction furnace.
2. system according to claim 1, it is characterised in that
The palletizing device is for disc balling machine or to roll-in ball machine；
The reduction furnace is the one kind in rotary kiln, tunnel cave or rotary hearth furnace；
The mill ore magnetic selection device is the linkage of ball mill and magnetic separator.
3. the method that a kind of arbitrary described system of utilization claim 1-2 processes tailings in vanadium extraction, it is characterised in that methods described
Including step：
Blend step：The tailings in vanadium extraction, ilmenite concentrate, carbonaceous reducing agent are mixed in the mixing arrangement, mixture is obtained
Material；
Pelletizing step：The mixed material is sent in the palletizing device, Jing after pelletizing process, pelletizing is obtained；
Reduction step：The pelletizing is sent in the reduction furnace carries out reduction reaction, obtains metallized pellet；
Mill ore magnetic selection step：The metallized pellet is sent in the mill ore magnetic selection device and is processed, obtain metal iron powder
And titanium slag.
4. method according to claim 3, it is characterised in that the mass ratio of each component is in the mixed material：Vanadium extraction
Tailings：Ilmenite concentrate：Carbonaceous reducing agent=100：60～150：20～30.
5. method according to claim 3, it is characterised in that in the blend step, TiO in the ilmenite concentrate2Quality
Content >=45%.
6. method according to claim 3, it is characterised in that in the blend step, TiO in the tailings in vanadium extraction2Matter
Amount content is 10～20%.
7. method according to claim 3, it is characterised in that in the reduction step temperature of reduction reaction be 1350～
1450 DEG C, the temperature of preferred reduction reaction is 1350～1400 DEG C.
8. method according to claim 3, it is characterised in that the TFe >=96wt% in the metal iron powder.
9. method according to claim 3, it is characterised in that the TiO in the titanium slag2Content ＞ 50wt%.
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| CN201611100286.6A CN106636628A (en) | 2016-12-02 | 2016-12-02 | Treatment system and method for vanadium extraction tailings |
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ID=58819538
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109385533A (en) * | 2018-10-22 | 2019-02-26 | 攀钢集团攀枝花钢铁研究院有限公司 | The recoverying and utilizing method of titanium slag dedusting ash |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101280361A (en) * | 2008-05-13 | 2008-10-08 | 陈健 | Process method of tailings in vanadium extraction |
| CN102337444A (en) * | 2010-07-28 | 2012-02-01 | 王洪东 | Technology for producing vanadium chromium manganese alloyed pig iron by melting vanadium extraction tailings |
| CN103266223A (en) * | 2013-05-24 | 2013-08-28 | 攀钢集团攀枝花钢铁研究院有限公司 | Furnace maintenance vanadium-titanium pellet for normal blast furnace and production method thereof |
| CN103602820A (en) * | 2013-10-11 | 2014-02-26 | 河北钢铁股份有限公司承德分公司 | Method for efficiently recovering iron, vanadium and chromium from extracted vanadium tailings |
-
2016
- 2016-12-02 CN CN201611100286.6A patent/CN106636628A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101280361A (en) * | 2008-05-13 | 2008-10-08 | 陈健 | Process method of tailings in vanadium extraction |
| CN102337444A (en) * | 2010-07-28 | 2012-02-01 | 王洪东 | Technology for producing vanadium chromium manganese alloyed pig iron by melting vanadium extraction tailings |
| CN103266223A (en) * | 2013-05-24 | 2013-08-28 | 攀钢集团攀枝花钢铁研究院有限公司 | Furnace maintenance vanadium-titanium pellet for normal blast furnace and production method thereof |
| CN103602820A (en) * | 2013-10-11 | 2014-02-26 | 河北钢铁股份有限公司承德分公司 | Method for efficiently recovering iron, vanadium and chromium from extracted vanadium tailings |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109385533A (en) * | 2018-10-22 | 2019-02-26 | 攀钢集团攀枝花钢铁研究院有限公司 | The recoverying and utilizing method of titanium slag dedusting ash |
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