CN108929951A - A kind of utilization method of v-ti magnetite concentrate - Google Patents
A kind of utilization method of v-ti magnetite concentrate Download PDFInfo
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- CN108929951A CN108929951A CN201810907201.8A CN201810907201A CN108929951A CN 108929951 A CN108929951 A CN 108929951A CN 201810907201 A CN201810907201 A CN 201810907201A CN 108929951 A CN108929951 A CN 108929951A
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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
- C22B1/242—Binding; Briquetting ; Granulating with binders
- C22B1/244—Binding; Briquetting ; Granulating with binders organic
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct 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
- C22B34/10—Obtaining titanium, zirconium or hafnium
- C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
- C22B34/1218—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by 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
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
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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
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/12—Dry methods smelting of sulfides or formation of mattes by gases
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Abstract
The present invention provides a kind of utilization methods of v-ti magnetite concentrate, and v-ti magnetite concentrate, carbonaceous reducing agent and binder are uniformly mixed, mixture is obtained；It is dry by mixture agglomeration, obtain pelletizing；In a nitrogen atmosphere by pelletizing, in 1300~1400 DEG C of 2~3h of reduction nitridation, reduction nitridation material is obtained；By the broken rear magnetic separation of reduction nitridation material, crude iron powder and nitridation titanium slag are obtained.Crude iron powder may be used as steelmaking feed, and nitridation titanium slag may be used as low temperature chlorination and produce TiCl4Raw material.The process flow is simple, and the utilization rate of v-ti magnetite concentrate improves, and proposes a kind of new approach for the comprehensive utilization of schreyerite.The yield of iron is 90%~95%；The yield of titanium is 50%~60%；The mass content of full iron is 80.17% in crude iron powder, and the mass content of metallic iron is 77.33%；The mass content for nitrogenizing full iron in titanium slag is 20.74%, and the mass content of metallic iron is 15.50%.
Description
Technical field
The invention belongs to vanadium titano-magnetite technical field of resource comprehensive utilization more particularly to a kind of benefits of v-ti magnetite concentrate
Use method.
Background technique
Vanadium titano-magnetite is a kind of grandidierite of a variety of valuable element symbiosis such as iron, vanadium, titanium, and China's Panxi Diqu is contained
V-ti magnetite ore resources abundant, about 10,000,000,000 tons of reserves, be China's maximum vanadic titanomagnetite deposit at present, great comprehensive
Close utility value.
Raw ore can get two kinds of products after ore dressing, first is that v-ti magnetite concentrate, iron content height (TFe content 52%~
56%), the relatively low (TiO of Ti content2Content 10%~13%)；First is that ilmenite concentrate, iron content it is lower (TFe content 35%~
36%), Ti content height (TiO2Content 47%~48%).
For the processing of ilmenite concentrate, titanium dioxide can be produced directly as the raw material of sulfate process titanium dioxide, or first through electric furnace smelting
Refining production high titanium slag, the raw material that high titanium slag is re-used as the different process such as sulfuric acid process or chloridising use, and iron and titanium obtain
It recycles.
For the processing of v-ti magnetite concentrate, currently, blast furnace-converter process is still main stream approach, production capacity is big, production efficiency
Height, but with the development and progress of society, this traditional process is also faced with the energy and environmental protection pressure growing day by day, especially focuses
The dependence of coal becomes the bottleneck problem for restricting its development.More importantly blast furnace-bof process handles v-ti magnetite concentrate
Iron and vanadium therein can only be recycled, titanium elements enter in blast furnace slag, due to the lower (TiO in blast furnace slag of titanium grade2Content is
22%~25%) it, is still used at present without effective ways to it, processing can only be stored up, on the one hand cause valuable titanium resource
Waste, on the other hand brings adverse effect to environment.
In addition, also direct-reduction-electric furnace of industrial applications melts division technique and handles vanadium titano-magnetite, large-scale production
It is represented as New Zealand Steel Ltd. and South Africa Granville Gang Fan company, the two is all made of molten point of rotary kiln for directly reducing-electric furnace
Process schreyerite, which can get vanadium-bearing hot metal and titanium-containing molten and separated slag, titanium enter in melting slag, TiO2Content is
30%~35%, although being increased than the Ti content in blast furnace slag, it is difficult using difficult technology that there are still titanium-containing molten and separated slags
Topic.Meanwhile the technique is limited, the work there is also electric furnace smelting process energy consumption height, less economical problem by resource, the energy
It is difficult that skill is promoted on a large scale.
In short, under the conditions of current technology, the recycling of titanium resource is there are larger problem in v-ti magnetite concentrate, and vanadium titanium
The major part that generates is v-ti magnetite concentrate after ore resources pick up, due to the mineral content difference of raw ore, v-ti magnetite essence
The yield of mine is that 10 times of ilmenite concentrate yield are even more, and stock number is very big, and therefore, it is necessary to innovative technology methods, is simplified
Production procedure reduces process energy consumption, while further promoting value-added content of product, the technical level that general increase schreyerite utilizes
And economic benefit.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of utilization method of v-ti magnetite concentrate, this method resource benefit
It is high with rate, and product grade is higher.
The present invention provides a kind of utilization methods of v-ti magnetite concentrate, comprising the following steps:
V-ti magnetite concentrate, carbonaceous reducing agent and binder are uniformly mixed, mixture is obtained；
It is dry by mixture agglomeration, obtain pelletizing；
In a nitrogen atmosphere by the pelletizing, in 1300~1400 DEG C of 2~3h of reduction nitridation, reduction nitridation material is obtained；
By the broken rear magnetic separation of the reduction nitridation material, crude iron powder and nitridation titanium slag are obtained.
Preferably, the mass ratio of the flow of the nitrogen and v-ti magnetite concentrate is (5~20) L/min:1kg.
Preferably, the reduction nitridation material is crushed to 200 mesh granular mass content below more than or equal to 40%.
Preferably, the intensity of the magnetic separation is 100~150mT.
Preferably, full weight of iron content is 52~56wt%, TiO in the v-ti magnetite concentrate2Mass content be 10~
13wt%.
Preferably, in the v-ti magnetite concentrate the following particle of 200 mesh mass content >=65%.
Preferably, the mass ratio of the material of the C in the O and carbonaceous reducing agent in the v-ti magnetite concentrate is 1~1.4:1.
Preferably, described is organic binder, and the quality of organic binder accounts for the v-ti magnetite concentrate and carbonaceous reduction
The 0.5~1.5% of agent gross mass.
Preferably, the carbonaceous reducing agent is selected from coal dust and/or coke powder.
Preferably, fixation carbon content >=75% of the coal dust；The mass content of 200 mesh particle below in coal dust >=
65%.
The present invention provides a kind of utilization methods of v-ti magnetite concentrate, comprising the following steps: by v-ti magnetite concentrate, carbon
Matter reducing agent and binder are uniformly mixed, and obtain mixture；It is dry by mixture agglomeration, obtain pelletizing；By the pelletizing in nitrogen
Under gas atmosphere, in 1300~1400 DEG C of 2~3h of reduction nitridation, reduction nitridation material is obtained；The reduction nitridation material is crushed
Magnetic separation afterwards obtains crude iron powder and nitridation titanium slag.This method is by obtaining thick to magnetic separation after v-ti magnetite concentrate progress reduction nitridation
Iron powder and nitridation titanium slag；Crude iron powder may be used as steelmaking feed, and nitridation titanium slag may be used as low temperature chlorination technique and produce TiCl4's
Raw material.The process flow is simple, and the utilization rate of v-ti magnetite concentrate improves, and is that the comprehensive utilization of schreyerite proposes one kind newly
Approach.The results showed that the yield of iron is 90%~95%；The yield of titanium is 50%~60%；Full iron (TFe) in crude iron powder
Mass content be 80.17%, the mass content that the mass content of metallic iron (MFe) is 77.33%, TTi is 4.99%, TiN
Mass content be 3.56%；The mass content for nitrogenizing full iron in titanium slag is 20.74%, and the mass content of metallic iron is
The mass content that the mass content of 15.50%, TTi are 19.69%, TiN is 17.37%.
Detailed description of the invention
Fig. 1 is the process flow chart provided by the invention using v-ti magnetite concentrate.
Specific embodiment
The present invention provides a kind of utilization methods of v-ti magnetite concentrate, comprising the following steps:
V-ti magnetite concentrate, carbonaceous reducing agent and binder are uniformly mixed, mixture is obtained；
It is dry by mixture agglomeration, obtain pelletizing；
In a nitrogen atmosphere by the pelletizing, in 1300~1400 DEG C of 2~3h of reduction nitridation, reduction nitridation material is obtained；
By the broken rear magnetic separation of the reduction nitridation material, crude iron powder and nitridation titanium slag are obtained.
Method provided by the invention is by obtaining crude iron powder and nitridation to magnetic separation after v-ti magnetite concentrate progress reduction nitridation
Titanium slag；Crude iron powder may be used as steelmaking feed, and nitridation titanium slag may be used as low temperature chlorination technique and produce TiCl4.The process flow
Simply, the utilization rate of v-ti magnetite concentrate improves, and proposes a kind of new approach for the comprehensive utilization of schreyerite；Improve product
Quality, widened its application range.
V-ti magnetite concentrate, carbonaceous reducing agent and binder are uniformly mixed by the present invention, obtain mixture.In the present invention
In, the v-ti magnetite concentrate is the product after schreyerite raw ore sorts；Full weight of iron content is in the v-ti magnetite concentrate
52~56wt%, TiO2Mass content is 10~13wt%.The mass content of the following particle of 200 mesh in the v-ti magnetite concentrate
>=65%.
In the specific embodiment of the invention, in the v-ti magnetite concentrate, 39%≤Fe2O3Mass content≤42%,
Mass content≤34%, TiO of 31%≤FeO2Mass content is 10~13wt%.
The granular mass content for being greater than 100 mesh in the vanadium titano-magnetite is the granular mass of 6~7%, 100~140 mesh
Content is that the granular mass content of 3~4.2%, 140~180 mesh is that the granular mass contents of 6~6.5%, 180~200 mesh is
14~15% and less than 200 mesh granular mass content be 68~70%.
In the present invention, the carbonaceous reducing agent is selected from the metallurgical raw materials such as coal dust, coke powder；Preferably coal dust, more preferably
Anthracite coal dust.Carbon content >=75% is fixed in the coal dust；Mass content >=65% of 200 mesh particle below in coal dust.
In the present invention, the coal dust is anthracite coal dust；It is greater than the grain graininess matter of 140 mesh in the anthracite coal dust
Amount content is that the grain graininess mass content of 3~4%, 140~180 mesh is 4.8~5.4%；The granular mass of 180~200 mesh
Content is 19~20.5%；Granular mass content less than 200 mesh is 70~73%.
In the present invention, the mass ratio of the material of the C in the O and carbonaceous reducing agent in the v-ti magnetite concentrate be 1~
1.4:1.Wherein, the O in the v-ti magnetite concentrate is ferriferous oxide and TiO in v-ti magnetite concentrate2In the sum of O content.
C in the carbonaceous reducing agent is the fixed carbon in carbonaceous reducing agent.
In the present invention, the binder is preferably organic binder；The organic binder is preferably polyacrylamide.
The quality of the organic binder preferably accounts for the 0.5%~1.5% of the v-ti magnetite concentrate and carbonaceous reducing agent gross mass.?
In the specific embodiment of the invention, the quality of the organic binder preferably accounts for the v-ti magnetite concentrate and the total matter of carbonaceous reducing agent
The 1.2% or 1.0% of amount.Polyacrylamide bonding agent roasts 3min volatilizable 99.5% or more at 500 DEG C.
The present invention preferably adds water when v-ti magnetite concentrate, carbonaceous reducing agent and binder are uniformly mixed；The water
Quality accounts for the 6~9% of the v-ti magnetite concentrate, carbonaceous reducing agent and binder gross mass.V-ti magnetite concentrate, carbonaceous reduction
Agent, binder and water carry out under stirring conditions；The time of the stirring is preferably 6~10min.The preferred substep of the addition of water
It is rapid to carry out；The present invention is added the 8~12% of moisture total amount preferably in first minute, stirs 2~3min, then proceedes to add water,
And adding water while stirring, remaining water is uniformly added into 4~7min.
After obtaining mixture, the mixture agglomeration is obtained pelletizing by the present invention.Present invention preferably employs high-pressure ball press
Mixture is pressed into pelletizing, pelletizing can have any shape.In the present invention, the pelletizing is preferably shaped to spheroid ball
Group；More preferably having a size of 15mm × 20mm × 25mm spheroid pelletizing.The present invention is preferably dried after agglomeration, standby
With.
After obtaining pelletizing, the present invention by the pelletizing in a nitrogen atmosphere, in 1300~1400 DEG C of 2~3h of reduction nitridation,
Obtain reduction nitridation material.The present invention carries out reduction nitridation preferably in reduction furnace.The nitrogen is preferably in the nitrogen of flowing；Institute
Nitrogen is stated to wrap up pelletizing and it is isolated with outside air；The flow of the nitrogen and the mass ratio of v-ti magnetite concentrate are (5
~20) L/min:1kg.In the specific embodiment of the invention, the temperature of the reduction nitridation is 1300 DEG C, time 2.5h；Or
The temperature of reduction nitridation is 1400 DEG C, time 2h.
After reduction nitridation, reduction nitridation product is preferably discharged and is cooled down from reduction furnace by the present invention；It is described discharging and it is cold
But it is all made of nitrogen protection.
After obtaining reduction nitridation material, the broken rear magnetic separation of the reduction nitridation material is obtained crude iron powder and chlorine by the present invention
Change titanium slag.In the present invention, the reduction nitridation material is crushed to 200 mesh granular mass content >=40% below.In this hair
In bright, the intensity of the magnetic separation is preferably 100~150mT；In a particular embodiment, the intensity of the magnetic separation is 150mT.
Referring to Fig. 1, Fig. 1 is the process flow chart provided by the invention using v-ti magnetite concentrate；As can be seen from Figure 1:
Mixing, agglomeration are carried out by v-ti magnetite concentrate, carbonaceous reducing agent and binder formulation, then with water；In nitrogen atmosphere
Lower progress reduction nitridation material, last magnetic separation obtain crude iron powder and nitridation titanium slag.
In order to further illustrate the present invention, below with reference to embodiment to a kind of benefit of v-ti magnetite concentrate provided by the invention
It is described in detail with method, but they cannot be interpreted as limiting the scope of the present invention.
Embodiment 1
The main component and mass percentage of certain v-ti magnetite concentrate are as shown in table 1, and size distribution is as shown in table 2.
The main component and content/% of 1 certain v-ti magnetite concentrate of table
Note: TFe is the mass percentage that ferro element is total in sample.
Size distribution/% of 2 certain v-ti magnetite concentrate of table
Reducing agent uses anthracite coal dust, and the main component and mass percentage of coal dust are as shown in table 3, size distribution
As shown in table 4.
The main component and content/% of 3 anthracite coal dust of table
Size distribution/% of 4 anthracite coal dust of table
1) by v-ti magnetite concentrate, anthracite coal dust, polyacrylamide bonding agent mix, wherein v-ti magnetite concentrate with
Carbonaceous reducing agent is that 1.3 (being denoted as C/O=1.3) carry out ingredient according to carbon oxygen molar ratio, and wherein carbon (C) is in anthracite coal dust
Fixed carbon, oxygen (O) be v-ti magnetite concentrate in ferriferous oxide and TiO2In the sum of oxygen content；Polyacrylamide bonding agent
1.2% that quality is the sum of v-ti magnetite concentrate and anthracite quality of pc is added；
The v-ti magnetite concentrate prepared in proportion, anthracite coal dust, polyacrylamide bonding agent are stirred mixing, and
The water of mixture total mass 8%, mixing time 8min is added.
The addition of water carries out step by step, starts that the 10% of water inventory is added in first minute of stirring, stops adding water, stirring
3min, continues plus water later, and remaining 90% water is uniformly added into subsequent 4min mixing time, while stirring plus water, really
Material is protected to be uniformly mixed；
2) mixture for obtaining step 1) carries out agglomeration, and mixture is pressed into 15mm × 20mm using high-pressure ball press
The spheroid pelletizing of × 25mm, drying for standby；
3) dry pelletizing is fitted into reduction furnace, and fire box temperature is 1300 DEG C, and the nitrogen full of flowing in burner hearth, material exists
Residing time in furnace is 2.5h, and discharging obtains reduction nitridation material.Reduction nitridation material discharging and cooling procedure using nitrogen into
Row protection；
4) reduction nitridation material after cooling is broken is milled to following particle fraction >=40% of 200 mesh, magnetic separation, magnetic field strength
150mT obtains crude iron powder and nitridation titanium slag.Crude iron powder is used as steelmaking feed, and nitridation titanium slag is produced using low temperature chlorination technique
TiCl4.The yield of iron is 91.4%；The yield of titanium is 59%.
The present invention tests the ingredient and content of crude iron powder obtained and nitridation titanium slag, is as a result shown in Table 5 and table respectively
6:
The main component and content/% of 5 crude iron powder of table；
The main component and content/% of the nitridation titanium slag of table 6
Embodiment 2
Using v-ti magnetite concentrate as raw material, the main component and mass percentage of v-ti magnetite concentrate are as shown in table 1, should
The size distribution of v-ti magnetite concentrate is as shown in table 2.
Reducing agent uses anthracite coal dust, and the main chemical compositions content and size distribution of anthracite coal dust are respectively such as table 3
With shown in table 4.
1) by v-ti magnetite concentrate, anthracite coal dust and polyacrylamide bonding agent mix, wherein v-ti magnetite concentrate with
Carbonaceous reducing agent is that 1.2 (being denoted as C/O=1.2) carry out ingredient according to carbon oxygen molar ratio, and wherein carbon (C) is in anthracite coal dust
Fixed carbon, oxygen (O) be v-ti magnetite concentrate in ferriferous oxide and TiO2In the sum of oxygen content；Polyacrylamide bonding agent
1.0% that quality is the sum of v-ti magnetite concentrate and anthracite quality of pc is added；
The v-ti magnetite concentrate prepared in proportion, anthracite coal dust, polyacrylamide bonding agent are stirred mixing, and
The water of mixture total mass 7%, mixing time 8min is added.
The addition of water carries out step by step, starts that the 10% of water inventory is added in first minute of stirring, stops adding water, stirring
3min, continues plus water later, and remaining 90% water is uniformly added into subsequent 4min mixing time, while stirring plus water, really
Material is protected to be uniformly mixed；
2) mixture for obtaining step 1) carries out agglomeration, and mixture is pressed into 15mm × 20mm using high-pressure ball press
The spheroid pelletizing of × 25mm, drying for standby；
3) dry pelletizing is fitted into reduction furnace, and fire box temperature is 1400 DEG C, and the nitrogen full of flowing in burner hearth, material exists
Residing time in furnace is 2h, and discharging obtains reduction nitridation material.The discharging of reduction nitridation material and cooling procedure are carried out using nitrogen
Protection；
4) reduction nitridation material after cooling is broken is milled to following particle fraction >=40% of 200 mesh, magnetic separation, magnetic field strength
130mT obtains crude iron powder and nitridation titanium slag.Crude iron powder is used as steelmaking feed, and nitridation titanium slag is produced using low temperature chlorination technique
TiCl4.The yield of iron is 92.7%；The yield of titanium is 50.3%.
The present invention tests the ingredient and content of crude iron powder obtained and nitridation titanium slag, is as a result shown in Table 7 and table respectively
8:
The main component and content/% of 7 crude iron powder of table；
The main component and content/% of the nitridation titanium slag of table 8
As seen from the above embodiment, the present invention provides a kind of utilization methods of v-ti magnetite concentrate, comprising the following steps:
V-ti magnetite concentrate, carbonaceous reducing agent and binder are uniformly mixed, mixture is obtained；It is dry by mixture agglomeration, obtain ball
Group；In a nitrogen atmosphere by the pelletizing, in 1300~1400 DEG C of 2~3h of reduction nitridation, reduction nitridation material is obtained；It will be described
Magnetic separation after reduction nitridation material is broken obtains crude iron powder and nitridation titanium slag.This method is by restoring v-ti magnetite concentrate
Magnetic separation after nitridation obtains crude iron powder and nitridation titanium slag；Crude iron powder may be used as steelmaking feed, and nitridation titanium slag may be used as low temperature chlorine
Chemical industry skill produces TiCl4.The process flow is simple, and the utilization rate of v-ti magnetite concentrate improves, and mentions for the comprehensive utilization of schreyerite
A kind of new approach is gone out.The results showed that the yield of iron is 90%~95%；The yield of titanium is 50%~60%；Crude iron
The mass content of full iron (TFe) is 80.17% in powder, and the mass content of metallic iron (MFe) is the mass content of 77.33%, TTi
Mass content for 4.99%, TiN is 3.56%；The mass content for nitrogenizing full iron in titanium slag is 20.74%, the quality of metallic iron
The mass content that the mass content that content is 15.50%, TTi is 19.69%, TiN is 17.37%.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of utilization method of v-ti magnetite concentrate, comprising the following steps:
V-ti magnetite concentrate, carbonaceous reducing agent and binder are uniformly mixed, mixture is obtained；
By mixture agglomeration, pelletizing is obtained；
In a nitrogen atmosphere by the pelletizing, in 1300~1400 DEG C of 2~3h of reduction nitridation, reduction nitridation material is obtained；
By the broken rear magnetic separation of the reduction nitridation material, crude iron powder and nitridation titanium slag are obtained.
2. according to claim 1 utilize method, which is characterized in that the flow of the nitrogen and the matter of v-ti magnetite concentrate
Amount is than being (5~20) L/min:1kg.
3. according to claim 1 utilize method, which is characterized in that the reduction nitridation material is crushed to 200 mesh or less
Granular mass content be more than or equal to 40%.
4. according to claim 1 utilize method, which is characterized in that the intensity of the magnetic separation is 100~150mT.
5. according to claim 1 utilize method, which is characterized in that full weight of iron content is in the v-ti magnetite concentrate
52~56wt%, TiO2Mass content is 10~13wt%.
6. according to claim 1 utilize method, which is characterized in that the following particle of 200 mesh in the v-ti magnetite concentrate
Mass content >=65%.
7. according to claim 1 utilize method, which is characterized in that O and carbonaceous reduction in the v-ti magnetite concentrate
The mass ratio of the material of C in agent is 1~1.4:1.
8. according to claim 1 utilize method, which is characterized in that the binder is organic binder, organic adhesive
The quality of agent accounts for the 0.5%~1.5% of the v-ti magnetite concentrate and carbonaceous reducing agent gross mass.
9. according to claim 1 utilize method, which is characterized in that the carbonaceous reducing agent is selected from coal dust and/or coke powder.
10. according to claim 1 utilize method, which is characterized in that fixation carbon content >=75% of the coal dust；Coal dust
In 200 mesh particle below mass content >=65%.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110002889A (en) * | 2019-05-20 | 2019-07-12 | 攀枝花学院 | A kind of Ti (C, N) base refractory material and the method for producing Ti (C, N) base refractory material using 50 titanium slags |
| CN113046577A (en) * | 2021-03-11 | 2021-06-29 | 北京科技大学 | Method for selectively extracting iron, titanium and vanadium from vanadium-titanium magnetite |
| CN113088683A (en) * | 2021-04-21 | 2021-07-09 | 重庆大学 | Method for preparing low-temperature titanium chloride slag by using low-grade titanium concentrate |
| CN113308602A (en) * | 2021-05-14 | 2021-08-27 | 宜宾天原海丰和泰有限公司 | Method for utilizing titanium tetrachloride dust collecting slag |
| CN115927880A (en) * | 2022-12-30 | 2023-04-07 | 重庆大学 | Method for comprehensively utilizing ferrotitanium in titanium concentrate |
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| CN110002889A (en) * | 2019-05-20 | 2019-07-12 | 攀枝花学院 | A kind of Ti (C, N) base refractory material and the method for producing Ti (C, N) base refractory material using 50 titanium slags |
| CN113046577A (en) * | 2021-03-11 | 2021-06-29 | 北京科技大学 | Method for selectively extracting iron, titanium and vanadium from vanadium-titanium magnetite |
| CN113046577B (en) * | 2021-03-11 | 2022-05-06 | 北京科技大学 | Method for selectively extracting iron, titanium and vanadium from vanadium-titanium magnetite |
| CN113088683A (en) * | 2021-04-21 | 2021-07-09 | 重庆大学 | Method for preparing low-temperature titanium chloride slag by using low-grade titanium concentrate |
| CN113308602A (en) * | 2021-05-14 | 2021-08-27 | 宜宾天原海丰和泰有限公司 | Method for utilizing titanium tetrachloride dust collecting slag |
| CN115927880A (en) * | 2022-12-30 | 2023-04-07 | 重庆大学 | Method for comprehensively utilizing ferrotitanium in titanium concentrate |
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