CN107419090A - A kind of separation method of vanadium titano-magnetite and application - Google Patents
A kind of separation method of vanadium titano-magnetite and application Download PDFInfo
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- CN107419090A CN107419090A CN201710540036.2A CN201710540036A CN107419090A CN 107419090 A CN107419090 A CN 107419090A CN 201710540036 A CN201710540036 A CN 201710540036A CN 107419090 A CN107419090 A CN 107419090A
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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
- C22B1/02—Roasting processes
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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
- C21B13/006—Starting from ores containing non ferrous metallic oxides
-
- 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
- C22B1/243—Binding; Briquetting ; Granulating with binders inorganic
-
- 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
-
- 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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
- C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
-
- 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
- C22B34/1236—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 wet processes, e.g. by leaching
- C22B34/124—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 wet processes, e.g. by leaching using acidic solutions or liquors
- C22B34/125—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 wet processes, e.g. by leaching using acidic solutions or liquors containing a sulfur ion as active agent
-
- 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
Abstract
The present invention provides separation method and the application of a kind of vanadium titano-magnetite, is related to metallurgical engineering technical field.A kind of separation method of vanadium titano-magnetite, including：Raw material is mixed, is calcined and obtains metal compound；Metal compound is subjected to the isolated iron of magnetic separation and rich vanadium titanium material；Rich vanadium titanium material is subjected to acid treatment, obtains vanadium solution and titanium-contained slag；Raw material includes vanadium titano-magnetite, reducing agent, binding agent, lime stone, quick lime.This method raw material resources are enriched, cheap and easy to get.Effectively the ferrovanadium titanium resource in vanadium titano-magnetite can be extracted, technological process is simple, and maturity is high, and energy resource consumption is low, and the rate of recovery of resource is high.
Description
Technical field
The present invention relates to metallurgical engineering technical field, and the separation method of more particularly to a kind of vanadium titano-magnetite and application.
Background technology
Western vanadium titano-magnetite aboundresources is climbed, how to realize that efficiently separating for ferrovanadium titanium resource is most urgent research class
Topic.The traditional handicraft made steel using Mineral separation iron and titanium, blast furnace ironmaking, vanadium extraction by converter blowing main at present, technological process length are middle
Accessory substance is more, and effect on environment is more significant, and the recovery utilization rate of available resources is relatively low, and the utilization rate only 45% of titanium is left
It is right.For traditional handicraft resource utilization it is relatively low the characteristics of, climb steel and carried out molten point of vanadium-titanium ore rotary hearth furnace prereduction, electric furnace separation
The technique of ferrovanadium titanium, and built up the pilot scale line of 100,000 tons of scales, but the process energy consumption is higher, and electric furnace liner corrode compared with
It hurry up, more deficiency be present.
The domestic vanadium titano-magnetite comprehensive utilization of resources research work sixties in last century have just carried out, vanadium of mainly tackling key problems
The intensification of smelting process in BF of titanomagnetite, is arranged in pairs or groups by feedstock optimization at present, and vanadium titano-magnetite blast furnace smelting technology is ripe, but
The technique titanium resource is distributed in blast furnace slag, and titanium can not be recycled, even if recycling, technical difficulty is larger, warp
Ji property is poor.Also carried out the vanadium extraction of vanadium titano-magnetite sodium pelletizing oxidizing roasting elder generation, rear prereduced metal iron, molten point of separation simultaneously
The research of ferrotitanium, technological process is longer, and equipment and technology limitation is more, is finally not carried out industrialization.
The content of the invention
It is an object of the invention to provide a kind of separation method of vanadium titano-magnetite, this method raw material resources are enriched, inexpensively
It is easy to get.Effectively the ferrovanadium titanium resource in vanadium titano-magnetite can be extracted, technological process is simple, and maturity is high, and the energy disappears
Consume low, the rate of recovery height of resource.
Another object of the present invention is to provide application of the separation method of above-mentioned vanadium titano-magnetite in terms of ore purifying,
With preferable application prospect.
The present invention is solved its technical problem and realized using following technical scheme.
The present invention proposes a kind of separation method of vanadium titano-magnetite, including：Raw material is mixed, is calcined and obtains metal compound；
Metal compound is subjected to the isolated iron of magnetic separation and rich vanadium titanium material；Rich vanadium titanium material is subjected to acid treatment, obtains vanadium solution and titaniferous
Slag；Raw material includes vanadium titano-magnetite, reducing agent, binding agent, lime stone, quick lime.
The present invention proposes application of the separation method of above-mentioned vanadium titano-magnetite in terms of ore purifying.
A kind of separation method of vanadium titano-magnetite provided by the invention and the beneficial effect of application are：
A kind of separation method of vanadium titano-magnetite, use vanadium titano-magnetite, reducing agent, binding agent, lime stone, quick lime for
Raw material, is all from Panzhihua Region, and aboundresources is cheap and easy to get.The iron in vanadium titano-magnetite is turned by a step reduction reaction
Metallic iron is changed to, while vanadium is converted into acid-soluble calcium salt.Metallic iron and rich vanadium titanium material are separated by magnetic separation again.It is molten using sulfuric acid
Calcium vanadate is solved, obtains containing vanadium solution and titanium-contained slag, and then realize three kinds of separation iron, vanadium, titanium elements.The separation method technological process
Simply, separative efficiency is high, and technical maturity is high, and energy resource consumption is low, and the rate of recovery of ferrovanadium titanium resource is high, has preferably economic imitate
Benefit and application prospect.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is the separation process schematic diagram of the embodiment of the present invention.
Embodiment
, below will be in the embodiment of the present invention to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer
Technical scheme be clearly and completely described.Unreceipted actual conditions person, builds according to normal condition or manufacturer in embodiment
The condition of view is carried out.Agents useful for same or the unreceipted production firm person of instrument, it is the conventional production that can be obtained by commercially available purchase
Product.
The separation method to a kind of vanadium titano-magnetite of the embodiment of the present invention and application are specifically described below.
A kind of separation method of vanadium titano-magnetite provided in an embodiment of the present invention, including：
Raw material is weighed in proportion, is well mixed；Raw material includes vanadium titano-magnetite, reducing agent, binding agent, lime stone, raw stone
Ash.
Further, in the preferred embodiment of the present invention, raw material includes：80~100 parts of vanadium titano-magnetite, lime stone 5
~30 parts, 0~10 part of quick lime, 5~15 parts of reducing agent, 1~5 part of binding agent.Preferably, vanadium titano-magnetite 81,82,83,
84th, 96,97,98,99 parts, lime stone 6,7,8,9,26,27,28,29 parts, 1,9 part of quick lime, reducing agent 6,7,13,
14 parts, 2,4 parts of binding agent.
Further, in the preferred embodiment of the present invention, raw material includes：85~95 parts of vanadium titano-magnetite, lime stone 10
~25 parts, 2~8 parts of quick lime, 8~12 parts of reducing agent, 1~5 part of binding agent.Preferably, vanadium titano-magnetite 86,87,89,
92nd, 93 parts, lime stone 11,13,14,17,19,22,23 parts, quick lime 3,4,6,7 parts, 9,11 parts of reducing agent.
Contain more iron, titanium, vanadium and micro chromium, cobalt, nickel in vanadium titano-magnetite, be the important sources of iron, have
Very high comprehensive utilization value.Vanadium titano-magnetite that the present invention uses, reducing agent, binding agent, lime stone, quick lime are all from climbing
Branch spends area, and aboundresources is cheap and easy to get.Preferably, vanadium titano-magnetite includes v-ti magnetite concentrate, ilmenite concentrate and other vanadium titaniums
Ore deposit.In order to improve separation quality, the granularity of vanadium titano-magnetite is less than 0.1mm.
Typically under the high temperature conditions, the iron in vanadium titano-magnetite is restored using reducing agent.In the embodiment of the present invention
In, reducing agent includes at least one of coke powder, anchracite duff or brown coal powder.In order to be swift in response, percent reduction is improved, it is more excellent
, the particle diameter of reducing agent is less than 0.1mm.Coke powder, the key component of coal dust are carbon, and phosphorus content is 90~98% in anchracite duff,
The phosphorus content of brown coal powder is 60~70%.
China's iron ore resource has the characteristics of " poor, thin, scattered, miscellaneous ", and the mined grade of ore is low, and general Iron grade is only
Have 30% or so, impurity content is more, and preferable product quality can not be obtained by directly entering blast furnace process, also result in coke ratio liter
Height, still steel plant of state pass through sintering process or pelletizing method and carry out agglomeration.Therefore raw material includes binding agent, makes raw material close
Connection forms block.Specifically, it is compressed into pit coal pelletizing after raw material is well mixed.In order to improve the gas permeability of furnace charge,
Melting and grade, the circle or oval ball block that pit coal pelletizing is 10~30mm.
Further, the present invention preferred embodiment in, binding agent include polysaccharide binding agent, polyalcohols binding agent,
At least one of hydroxymethyl cellulose or alkali metal waterglass.Preferably, alkali metal waterglass includes sodium silicate.
The main component of lime stone is calcium carbonate, calcines decomposable asymmetric choice net generation carbon dioxide and calcium oxide at high temperature.Also
In former process, carbon dioxide contributes to the oxidation of vanadium, generates acid-soluble calcium vanadate, and then separated with iron by magnetic separation.In order to
Increase the generation of calcium salt, improve separative efficiency, it is preferred that the calcium oxide generated in lime stone accounts for the mass fraction of lime stone at least
For 45%, the granularity of lime stone is less than 0.1mm.
The main component of quick lime is calcium oxide.In order to increase the generation of calcium salt, separative efficiency is improved, is also included in raw material
Appropriate quick lime.Preferably, the content of calcium oxide is more than 80% in quick lime, and the granularity of quick lime is less than 0.1mm.Lime stone with
The main function of quick lime is to generate the calcium salt containing vanadium, passes through sour separated and dissolved vanadium, titanium, it is not necessary to high temperature or melting,
Reduce power consumption.The carbon dioxide of generation contributes to the generation of calcium vanadate simultaneously, improves separative efficiency.
After raw material is by proportioning mixing, pelletizing is pressed into, is put into rotary kiln, 20 are calcined under conditions of 910~1390 DEG C
~60min, obtains metallized pellet.In this process, reducing agent restores the iron in vanadium titano-magnetite, decomposition of limestone
Vanadium oxidation in vanadium titano-magnetite is generated calcium vanadate by the carbon dioxide of generation with calcium oxide and quick lime.It is smooth for reaction
Carry out, it is preferred that calcination atmosphere is neutral atmosphere or micro- reducing atmosphere.Gas phase in stove includes carbon dioxide, an oxidation
Carbon etc..Preferably, after pelletizing is made, by drying, moisture is sloughed, then reduced.
In order to improve the quality of magnetic separation and efficiency, after obtained metallized pellet is crushed in disintegrating machine, using ball milling
Machine carries out ball milling slurrying.Preferably, the particle diameter of the material obtained is less than 0.045mm.
Magnetic separation separation is carried out to obtained material using rotary drum magnetic separator, obtained magnetic material is metal iron block, is obtained
Non magnetic material be rich vanadium titanium material.It is isolated when magnetic field intensity is 0.3~0.5T in preferred embodiment of the present invention
Rich vanadium titanium material purity is high.
In the present invention, vanadium and titanium are separated by the way of acid solution extraction separation.Specifically, use concentration for 5%~
40% sulfuric acid and the reaction of rich vanadium titanium material, leaching, are filtrated to get containing vanadium solution and titanium-contained slag.
Iron in vanadium titano-magnetite can be converted to by a step reduction reaction by metallic iron using this method, vanadium is converted
For acid-soluble calcium salt, then iron, vanadium, titanium separated by techniques such as magnetic separation, acidleach, realize efficiently separating for three kinds of elements.
The separation method technological process of vanadium titano-magnetite provided by the invention is simple, and separative efficiency is high, and technical maturity is high,
Energy resource consumption is low, and the rate of recovery of resource is high, available in terms of ore purifying.
The feature and performance of the present invention are described in further detail with reference to embodiments.
Embodiment 1
As shown in figure 1, present embodiments providing a kind of separation method of vanadium titano-magnetite, comprise the following steps：
Count in parts by weight, raw material includes 90 parts of schreyerite, 10 parts of coal dust, 25 parts of lime stone, 5 parts of binding agent.
By schreyerite (TFe54.2%, V2O50.62%, TiO213.7%, granularity<0.1mm), coal dust (anchracite duff, is waved
Hair point 17.6%, ash content 7.9%, fixed carbon 74.6%, granularity<0.1mm), lime stone (calcium oxide 49%, granularity<0.1mm),
Binding agent (sodium silicate) is pressed into pelletizing by proportioning mixing.
After being dried under conditions of 150 DEG C, the reductase 12 0min under conditions of 910 DEG C, degree of metalization is obtained as 68% or so
Metallized pellet.
Then cracker grinds slurry, and Control granularity is in below 0.045mm.Separated, obtained by 0.3T magnetic field intensity magnetic separation
To magnetic material (rich iron charge, TFe91.5%) and non magnetic ore.
By the vitriol lixiviation non magnetic ore that concentration is 40%, obtaining containing vanadium the solution containing vanadium and titaniferous that are 0.5g/L is
21.5wt% titanium-contained slag.
Embodiment 2
As shown in figure 1, present embodiments providing a kind of separation method of vanadium titano-magnetite, comprise the following steps：
Count in parts by weight, raw material includes 100 parts of schreyerite, 15 parts of coal dust, 25 parts of lime stone, 5 parts of binding agent.
By schreyerite (TFe54.2%, V2O50.62%, TiO213.7%, granularity<0.1mm), coal dust (anchracite duff, is waved
Hair point 17.6%, ash content 7.9%, fixed carbon 74.6%, granularity<0.1mm), lime stone (calcium oxide 49%, granularity<0.1mm),
Binding agent (sodium silicate) is pressed into pelletizing by proportioning mixing.
After drying under conditions of 150 DEG C, 40min is reduced under conditions of 1100 DEG C, obtain degree of metalization for 81% with
On metallized pellet.
Then cracker grinds slurry, and Control granularity is in below 0.045mm.Separated, obtained by 0.4T magnetic field intensity magnetic separation
To magnetic material (rich iron charge, TFe91.5%) and non magnetic ore.
By the vitriol lixiviation non magnetic ore that concentration is 10%, obtaining containing vanadium the solution containing vanadium and titaniferous that are 0.5g/L is
23.5wt% titanium-contained slag.
Embodiment 3
As shown in figure 1, present embodiments providing a kind of separation method of vanadium titano-magnetite, comprise the following steps：
Count in parts by weight, raw material includes 100 parts of schreyerite, 10 parts of coke powder, 15 parts of lime stone, 5 parts of quick lime, binding agent
2 parts.
By schreyerite (TFe54.2%, V2O50.62%, TiO213.7%, granularity<0.1mm), coke powder (fixed carbon 85%,
Granularity<0.1mm), lime stone (calcium oxide 49%, granularity<0.1mm), quick lime (calcium oxide 75%, granularity<0.1mm), polysaccharide
Class binding agent is pressed into pelletizing by proportioning mixing.
Dried under conditions of 150 DEG C, reduce 40min under conditions of 1300 DEG C, obtain degree of metalization more than 92%
Metallized pellet.
Then cracker grinds slurry, and Control granularity is separated by 0.5T magnetic field intensity magnetic separation, obtained in below 0.045mm
To magnetic material (iron block, TFe93.5%) and non magnetic ore.
By the vitriol lixiviation that concentration is 25%, it is containing for 24.6wt% to obtain the solution containing vanadium of the 0.55g/L containing vanadium and titaniferous
Titanium slag.
Embodiment 4
As shown in figure 1, present embodiments providing a kind of separation method of vanadium titano-magnetite, comprise the following steps：
Count in parts by weight, raw material includes 80 parts of schreyerite, 15 parts of coke powder, 15 parts of lime stone, 5 parts of quick lime, binding agent 2
Part.
By schreyerite (TFe54.2%, V2O50.62%, TiO213.7%, granularity<0.1mm), coke powder (fixed carbon 85%,
Granularity<0.1mm), lime stone (calcium oxide 49%, granularity<0.1mm), quick lime (calcium oxide 75%, granularity<0.1mm), polyalcohols
Class binding agent is pressed into pelletizing by proportioning mixing.
Dried under conditions of 150 DEG C, reduce 40min under conditions of 1300 DEG C, obtain degree of metalization more than 92%
Metallized pellet.
Then cracker grinds slurry, and Control granularity is separated by 0.4T magnetic field intensity magnetic separation, obtained in below 0.045mm
To magnetic material (iron block, TFe93.5%) and non magnetic ore.
By the vitriol lixiviation that concentration is 25%, it is containing for 24.6wt% to obtain the solution containing vanadium of the 0.55g/L containing vanadium and titaniferous
Titanium slag.
Embodiment 5
As shown in figure 1, present embodiments providing a kind of separation method of vanadium titano-magnetite, comprise the following steps：
Count in parts by weight, raw material includes 100 parts of schreyerite, 5 parts of coke powder, 30 parts of lime stone, 10 parts of quick lime, binding agent
2 parts.
By schreyerite (TFe54.2%, V2O50.62%, TiO213.7%, granularity<0.1mm), coke powder (fixed carbon 85%,
Granularity<0.1mm), lime stone (calcium oxide 49%, granularity<0.1mm), quick lime (calcium oxide 75%, granularity<0.1mm), bond
Agent (hydroxymethyl cellulose) is pressed into pelletizing by proportioning mixing.
After drying under conditions of 150 DEG C, then 40min is reduced under conditions of 1390 DEG C, obtain degree of metalization 95% with
On metallized pellet.
Then cracker grinds slurry, below Control granularity 0.045mm, is separated, obtained by 0.4T magnetic field intensity magnetic separation
Magnetic material (iron block, TFe95.5%) and non magnetic ore.
By the vitriol lixiviation non magnetic ore of concentration 5%, the solution containing vanadium and titaniferous for obtaining the 0.25g/L containing vanadium are
17.8wt% titanium-contained slag.
Embodiment 6
As shown in figure 1, present embodiments providing a kind of separation method of vanadium titano-magnetite, comprise the following steps：
Count in parts by weight, raw material includes 100 parts of schreyerite, 10 parts of anchracite duff, 18 parts of lime stone, 5 parts of quick lime, glues
Tie 2 parts of agent.
By schreyerite (TFe54.2%, V2O50.62%, TiO213.7%, granularity<0.1mm), coke powder (fixed carbon 85%,
Granularity<0.1mm), lime stone (calcium oxide 49%, granularity<0.1mm), quick lime (calcium oxide 75%, granularity<0.1mm), bond
Agent (hydroxymethyl cellulose) is pressed into pelletizing by proportioning mixing.
After drying under conditions of 150 DEG C, then 40min is reduced under conditions of 1390 DEG C, obtain degree of metalization 95% with
On metallized pellet.
Then cracker grinds slurry, below Control granularity 0.045mm, is separated, obtained by 0.4T magnetic field intensity magnetic separation
Magnetic material (iron block, TFe95.5%) and non magnetic ore.
By the vitriol lixiviation non magnetic ore of concentration 30%, the solution containing vanadium and titaniferous for obtaining the 0.5g/L containing vanadium are
25.3wt% titanium-contained slag.
From embodiment 1~6, when the proportioning of raw material is：100 parts of schreyerite, 5 parts of coke powder, 30 parts of lime stone, quick lime
10 parts, 2 parts of binding agent, when roasting reduction temperature is 1300~1390 DEG C, degree of metalization is higher, reaches more than 95%.During pickling,
When being at least 25% sulfuric acid using concentration, vanadium, the rate of recovery of titanium are higher.
In summary, the separation method of a kind of vanadium titano-magnetite provided by the invention, using vanadium titano-magnetite, reducing agent,
Binding agent, lime stone, quick lime are raw material, are all from Panzhihua Region, and aboundresources is cheap and easy to get.It is anti-by step reduction
Iron in vanadium titano-magnetite should be converted to metallic iron, while vanadium is converted into acid-soluble calcium salt.Metal is separated by magnetic separation again
Iron and rich vanadium titanium material.Using sulfuric acid dissolution calcium vanadate, obtain containing vanadium solution and titanium-contained slag, and then realize separation iron, vanadium, three kinds of titanium
Element.The separation method technological process is simple, and separative efficiency is high, and technical maturity is high, and energy resource consumption is low, and ferrovanadium titanium resource returns
High income, there is preferable economic benefit and application prospect.
Embodiments described above is part of the embodiment of the present invention, rather than whole embodiments.The reality of the present invention
The detailed description for applying example is not intended to limit the scope of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, belongs to the scope of protection of the invention.
Claims (10)
- A kind of 1. separation method of vanadium titano-magnetite, it is characterised in that including：Raw material is mixed, is calcined and obtains metal compound；Metal compound progress magnetic separation is separated off iron, obtains rich vanadium titanium material；The rich vanadium titanium material is subjected to acid treatment, obtains vanadium solution and titanium-contained slag；The raw material includes vanadium titano-magnetite, reducing agent, binding agent, lime stone, quick lime.
- 2. the separation method of vanadium titano-magnetite according to claim 1, it is characterised in that count in parts by weight, the original Material includes：80~100 parts of the vanadium titano-magnetite, 5~30 parts of the lime stone, 0~10 part of the quick lime, the reducing agent 5~15 parts, 1~5 part of the binding agent.
- 3. the separation method of vanadium titano-magnetite according to claim 2, it is characterised in that count in parts by weight, the original Material includes：85~95 parts of the vanadium titano-magnetite, 10~25 parts of the lime stone, 2~8 parts of the quick lime, the reducing agent 8 ~12 parts, 1~5 part of the binding agent.
- 4. the separation method of vanadium titano-magnetite according to claim 1, it is characterised in that sintering temperature is 910~1390 DEG C, roasting time is 20~60min.
- 5. the separation method of vanadium titano-magnetite according to claim 4, it is characterised in that roasting neutral atmosphere or it is micro- also Carried out in originality atmosphere.
- 6. the separation method of vanadium titano-magnetite according to claim 1, it is characterised in that magnetic separation, which is separated in magnetic field intensity, is Carried out in the environment of 0.3~0.5T.
- 7. the separation method of the vanadium titano-magnetite according to any one of claim 1 to 6, it is characterised in that use concentration as 5 ~40% sulfuric acid carries out acid treatment to the rich vanadium titanium material.
- 8. the separation method of the vanadium titano-magnetite according to Claims 2 or 3, it is characterised in that the reducing agent includes Jiao At least one of powder, anchracite duff or brown coal powder, the particle diameter of the reducing agent are less than 0.1mm.
- 9. the separation method of the vanadium titano-magnetite according to Claims 2 or 3, it is characterised in that the binding agent includes more At least one of sugar binder, polyalcohols binding agent, hydroxymethyl cellulose or alkali metal waterglass.
- 10. application of the separation method of the vanadium titano-magnetite as described in any one of claim 1 to 9 in terms of ore purifying.
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