CN107964600A - A kind of method of bone coal navajoite acid adding accumulation Leaching Vanadium - Google Patents
A kind of method of bone coal navajoite acid adding accumulation Leaching Vanadium Download PDFInfo
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- CN107964600A CN107964600A CN201711256955.3A CN201711256955A CN107964600A CN 107964600 A CN107964600 A CN 107964600A CN 201711256955 A CN201711256955 A CN 201711256955A CN 107964600 A CN107964600 A CN 107964600A
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- vanadium
- bone coal
- leaching
- navajoite
- acid adding
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/20—Obtaining niobium, tantalum or vanadium
- C22B34/22—Obtaining vanadium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention belongs to extracting vanadium from stone coal technical applications, and in particular to a kind of method of bone coal navajoite acid adding accumulation Leaching Vanadium, comprise the following steps：Bone coal navajoite adds water after broken, ball milling and the concentrated sulfuric acid is uniformly mixed, and accumulation stands 2~5 days, is leached at normal temperatures with water, obtains containing vanadium leachate, and the leaching rate of vanadium is up to more than 90%.The present invention solve current pyrogenic process vanadium-extracting roasting flue gas is difficult, lectotype selection is difficult, the difficult control of calcination temperature, the problems such as V leaching rate is unstable, also solve the problems, such as the direct acid adding of wet method vanadium extraction heats leaching high energy consumption, the requirement of equipment corrosion resistant is high, leaching rate is low etc., this art production process is stable, equipment investment is few, easy to operate, clean environment firendly, production cost are low, has significant economic benefit and social benefit.
Description
Technical field
The invention belongs to extracting vanadium from stone coal technical applications, and in particular to a kind of bone coal navajoite acid adding accumulation Leaching Vanadium
Method.
Background technology
China's bone coal navajoite resource very abundant, traditional extracting vanadium from stone coal technology is mostly using the roasting of flat kiln sodium method, water logging
Technique extracts vanadic anhydride.The shortcomings that this technique produces when being flat kiln roasting largely contains SO2With HCL, Cl2Deng pernicious gas,
Serious pollution environment, and vanadium recovery is low, production cost is high, causes the serious waste of resource.
At present, the production technology of extracting vanadium from stone coal mainly has two major class of pyrogenic process and wet method.Pyrogenic process process for extracting vanadium is to navajoite
The vanadium extraction technology leached after stone high temperature oxidation roasting, high temperature oxidation roasting be in order to destroy the institutional framework of mineral, will be low
Valency vanadium is oxidized to high price vanadium, forms ease of solubility vanadate, completes the leaching of vanadium.Wet method process for extracting vanadium refers to that ore does not have to roasting,
Ore pulp is made into using the acid solution and ore of higher concentration, is heated in stirring pool, long agitation, completes the leaching of vanadium.
Bone coal navajoite pyrogenic process process for extracting vanadium is generally roasted using flat kiln or shaft kiln, water logging or diluted acid leaching, technological process letter
Single, Technical comparing is ripe, but there is presently no the flat kiln for the roasting apparatus, only small-scale for being more suitable for large-scale production
Applied with shaft kiln；Also, the difficult control of calcination temperature, the leaching rate of vanadium are unstable；In addition, carbon containing high stone coal mine in order to avoid
Sintering in kiln, also wants first decarburization, could be roasted.Bone coal navajoite wet method process for extracting vanadium is generally using strong acid heating stirring leaching
Go out, it can be achieved that large-scale production, but warming up pulp is stirred, high energy consumption, equipment corrosion resistant require that high, production cost is high.
It can be seen from the above that the key problem in technology of extracting vanadium from stone coal, essentially consists in the leaching for improving the vanadium that can be transferred in ore in solution
Rate, reduce production cost, protection of optimizing the environment.To solve the above-mentioned problems, the present invention provides a kind of bone coal navajoite acid adding heap
The method of product Leaching Vanadium, it does not have to roasting, room temperature leaches, and solves current process for extracting vanadium from stone coal high energy consumption, equipment corrosion resistant requirement
High, the problems such as production cost is high；And the leaching rate, environmental-friendly of vanadium can be significantly improved；It can meet containing vanadium leachate follow-up
The enrichment vanadium extraction procedure calls such as extraction or ion exchange, optimize domestic traditional process for extracting vanadium from stone coal.
The content of the invention
It is an object of the invention to solve at least one above problem or defect, and provide at least one will be described later
The advantages of.
It is a still further object of the present invention to provide a kind of method of bone coal navajoite acid adding accumulation Leaching Vanadium, it uses bone coal
Navajoite is uniformly mixed after adding water and sulfuric acid, and accumulation, stand, and mineral institutional framework is destroyed using its autothermal reaction, then with water normal
Vanadium is leached into solution under temperature, solves the problems, such as that extracting vanadium from stone coal field environment is seriously polluted.
It is a still further object of the present invention to provide a kind of method of bone coal navajoite acid adding accumulation Leaching Vanadium, mesh is which solved
Preceding process for extracting vanadium from stone coal high energy consumption, equipment corrosion resistant require the problems such as high, production cost is high.
It is a still further object of the present invention to provide a kind of method of bone coal navajoite acid adding accumulation Leaching Vanadium, it is significantly improved
The leaching rate of vanadium, can meet that follow-up extraction or ion exchange etc. are enriched with vanadium extraction procedure calls containing vanadium leachate, optimize state
Interior tradition process for extracting vanadium from stone coal.
In order to realize object of the present invention and other advantages, the present invention provides a kind of accumulation of bone coal navajoite acid adding to soak
Go out the method for vanadium, comprise the following steps：
Step 1, bone coal navajoite obtain bone coal miberal powder to be accumulated after broken, ball milling；
Step 2, adds water in the bone coal miberal powder to be accumulated, stirs evenly, obtain wet stone coal mine to be accumulated
Solid material；
Step 3, the concentrated sulfuric acid is added in the wet stone coal mine solid material to be accumulated, stirs evenly, obtains treating heap
The stone coal mine hybrid solid material of long-pending aqueous and sulfuric acid；
Step 4, by the described aqueous and stone coal mine hybrid solid solid accumulation of sulfuric acid, stands, obtains bone coal to be leached
Ore deposit solid material；
Step 5, adds water in the stone coal mine solid material to be leached, is leached, separation of solid and liquid, obtained
Containing vanadium leachate.
Present invention firstly provides a kind of method of new bone coal navajoite acid adding accumulation Leaching Vanadium, and acid adding accumulation is leached
Each influence factor carries out system test, at present to put into industrialized production, solves traditional process for extracting vanadium from stone coal and leaches
Rate is low, high energy consumption, equipment corrosion resistant require the problems such as high, optimizes domestic traditional process for extracting vanadium from stone coal, and new process production process is steady
It is fixed, equipment investment is few, easy to operate, clean environment firendly, production cost are low, there is significant economic benefit and social benefit.
Preferably, in the step 2, the weight ratio of the water and the bone coal miberal powder to be accumulated for 0.1~
0.3∶1。
Preferably, in the step 3, the weight of the concentrated sulfuric acid and the wet stone coal mine solid material to be accumulated
Amount is than being 0.1~0.4: 1.
Preferably, in the step 4, the described aqueous and stone coal mine hybrid solid solid accumulation of sulfuric acid, standing
Time is 2~5 days.
The vanadium in stone coal mine is leached in the acid adding accumulation, can be very good what is mixed using sulfuric acid and ore according to the above ratio
Autothermal reaction destroys mineral institutional framework, and various silicates are decomposed to form hydrated sulfate in mineral, while convert silicic acid
For the silica of indissoluble, vanadium exposes, oxidation by air, and trivalent vanadium changes into the tetravalence vanadium of ease of solubility.
Preferably, in the step 5, the weight ratio of the water and the stone coal mine solid material to be leached is
0.5~3: 1.
Described leach is to be leached with water room temperature, can be leaching or dump leaching or shower-bubble type, it is carried out
Separation of solid and liquid, obtains containing vanadium leachate, it leaches liquid energy and meets that follow-up extraction or ion exchange etc. are enriched with vanadium extraction procedure calls,
Solve pyrogenic process vanadium-extracting roasting flue gas is difficult, lectotype selection is difficult, the difficult control of calcination temperature, the problems such as V leaching rate is unstable,
Also the direct acid adding of wet method vanadium extraction heats leaching high energy consumption, the requirement of equipment corrosion resistant is high, leaching rate is low etc., optimization are solved the problems, such as
Domestic traditional process for extracting vanadium from stone coal.
Beneficial effects of the present invention
1st, the method for a kind of bone coal navajoite acid adding accumulation Leaching Vanadium provided by the invention, it uses bone coal navajoite to add water and sulphur
It is uniformly mixed after acid, accumulation, stand, and destroys mineral institutional framework using its autothermal reaction, then at normal temperatures leached vanadium with water
To solution, solve the problems, such as that extracting vanadium from stone coal field environment is seriously polluted.
2nd, the method for a kind of bone coal navajoite acid adding accumulation Leaching Vanadium provided by the invention, its stable production process, equipment are thrown
Money less, easy to operate, clean environment firendly, production cost it is low, there is significant economic benefit and social benefit.
3rd, the method for a kind of bone coal navajoite acid adding accumulation Leaching Vanadium provided by the invention, the leaching rate of its vanadium up to 90% with
On, hence it is evident that the leaching rate than current extracting vanadium from stone coal is higher by 10~30%.
4th, the method for a kind of bone coal navajoite acid adding accumulation Leaching Vanadium provided by the invention, it uses room temperature to leach, Ke Yishi
Leaching or dump leaching or shower-bubble type, solve pyrogenic process vanadium-extracting roasting flue gas is difficult, lectotype selection is difficult, roasting
The problems such as temperature hardly possible controls, V leaching rate is unstable, also solves the direct acid adding heating leaching high energy consumption of wet method vanadium extraction, sets
Standby corrosion resistant requires the problems such as high, leaching rate is low, optimizes domestic traditional process for extracting vanadium from stone coal.
5th, the method for a kind of bone coal navajoite acid adding accumulation Leaching Vanadium provided by the invention, its leachate it is siliceous it is low, spent acid is low,
Easily meet the requirement of the enrichment vanadium extraction process such as follow-up extraction or ion exchange.
Brief description of the drawings
Fig. 1 is a kind of flow diagram of the method for bone coal navajoite acid adding accumulation Leaching Vanadium of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
It should be appreciated that the term such as " having " used herein, "comprising" and " comprising " be not precluded from one or
The presence or addition of the multiple other elements of person or its combination.
As shown in Figure 1, the present invention provides a kind of method of bone coal navajoite acid adding accumulation Leaching Vanadium, including：
Step 1, bone coal navajoite obtain bone coal miberal powder to be accumulated after broken, ball milling；
Step 2, adds water in the bone coal miberal powder to be accumulated, stirs evenly, obtain wet stone coal mine to be accumulated
Solid material；
Step 3, the concentrated sulfuric acid is added in the wet stone coal mine solid material to be accumulated, stirs evenly, obtains treating heap
The stone coal mine hybrid solid material of long-pending aqueous and sulfuric acid；
Step 4, by the described aqueous and stone coal mine hybrid solid solid accumulation of sulfuric acid, stands, obtains bone coal to be leached
Ore deposit solid material；
Step 5, adds water in the stone coal mine solid material to be leached, is leached, separation of solid and liquid, obtained
Containing vanadium leachate.
Present invention firstly provides a kind of method of new bone coal navajoite acid adding accumulation Leaching Vanadium, and acid adding accumulation is leached
Each influence factor carries out system test, at present to put into industrialized production, solves traditional process for extracting vanadium from stone coal and leaches
Rate is low, high energy consumption, equipment corrosion resistant require the problems such as high, optimizes domestic traditional process for extracting vanadium from stone coal, and new process production process is steady
Calmly, equipment investment is few, easy to operate, clean environment firendly production cost is low, has significant economic benefit and social benefit.
The leaching rate of its of the invention vanadium is up to more than 90%, hence it is evident that and the leaching rate than current extracting vanadium from stone coal is higher by 10~30%,
Production cost reduces by 20% or so.
Embodiment 1
The water of miberal powder weight ratio 20% is added to below 100 mesh by bone coal navajoite is levigate, is uniformly mixed, is added miberal powder weight
The sulfuric acid than 28% is measured, is uniformly mixed, the stone coal mine hybrid solid material of the aqueous and sulfuric acid moistened；By the solid accumulation
Get up, self-heating temperature when being mixed using water, sulfuric acid and miberal powder is reacted, and stands 5 days, after then being stood with 2 times of water
Material leaching at normal temperatures 2 it is small when, obtain the leachate containing vanadium, measure V leaching rate 92%, leachate silicone content
0.09g/L, pH value 1.5.
Embodiment 2
The water of miberal powder weight ratio 20% is added to below 100 mesh by bone coal navajoite is levigate, is uniformly mixed, is added miberal powder weight
The sulfuric acid than 30% is measured, is uniformly mixed, the stone coal mine hybrid solid material of the aqueous and sulfuric acid moistened；By the solid accumulation
Get up, self-heating temperature when being mixed using water, sulfuric acid and miberal powder is reacted, and stands 5 days, after then being stood with 2 times of water
Material leaching at normal temperatures 2 it is small when, obtain the leachate containing vanadium, measure V leaching rate 93.6%, leachate silicone content
0.11g/L, pH value 1.2.
Embodiment 3
The water of miberal powder weight ratio 15% is added to below 100 mesh by bone coal navajoite is levigate, is uniformly mixed, is added miberal powder weight
The sulfuric acid than 25% is measured, is uniformly mixed, the stone coal mine hybrid solid material of the aqueous and sulfuric acid moistened；By the solid accumulation
Get up, self-heating temperature when being mixed using water, sulfuric acid and miberal powder is reacted, and stands 5 days, after then being stood with 2 times of water
Material leaching at normal temperatures 2 it is small when, obtain the leachate containing vanadium, measure V leaching rate 90.5%, leachate silicone content
0.09g/L, pH value 1.8.
Embodiment 4
The water of miberal powder weight ratio 20% is added to below 100 mesh by bone coal navajoite is levigate, is uniformly mixed, is added miberal powder weight
The sulfuric acid than 28% is measured, is uniformly mixed, the stone coal mine hybrid solid material of the aqueous and sulfuric acid moistened；By the solid accumulation
Get up, self-heating temperature when being mixed using water, sulfuric acid and miberal powder is reacted, and stands 5 days, after then being stood with 2 times of water
Material dump leaching at normal temperatures 2 days, obtain the leachate containing vanadium, measure V leaching rate 91.5%, leachate silicone content 0.07g/
L, pH value 1.8.
Embodiment 5
The water of miberal powder weight ratio 20% is added to below 100 mesh by bone coal navajoite is levigate, is uniformly mixed, is added miberal powder weight
The sulfuric acid than 28% is measured, is uniformly mixed, the stone coal mine hybrid solid material of the aqueous and sulfuric acid moistened；By the solid accumulation
Get up, self-heating temperature when being mixed using water, sulfuric acid and miberal powder is reacted, and stands 3 days, after then being stood with 2 times of water
Material dump leaching at normal temperatures 2 days, obtain the leachate containing vanadium, measure V leaching rate 91.3%, leachate silicone content 0.08g/
L, pH value 1.8.
The present invention also has other selective embodiments, just no longer elaborates here.
The present invention be it is current domestic first using the method for bone coal navajoite acid adding accumulation Leaching Vanadium, its use acid adding accumulation,
Stand, room temperature leach, solve pyrogenic process vanadium-extracting roasting flue gas is difficult, lectotype selection is difficult, the difficult control of calcination temperature, V leaching rate
The problems such as unstable, also solve the direct acid adding heating leaching high energy consumption of wet method vanadium extraction, equipment corrosion resistant requirement height, leaching rate
Low problem；The leaching rate of its vanadium up to more than 90%, and leachate it is siliceous it is low, spent acid is low, it is easier to meet follow-up extraction or
Ion exchange etc. is enriched with the requirement of vanadium extraction process.
The above described is only a preferred embodiment of the present invention, not make limitation in any form to the present invention, to the greatest extent
Pipe embodiment of the present invention has been announced as above, but it is not restricted to listed utilization in specification and embodiment, it is complete
Various suitable the field of the invention can be applied to entirely, for those skilled in the art, can easily be realized in addition
Modification, therefore, under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited to specific
Details and described legend.
Claims (6)
- A kind of 1. method of bone coal navajoite acid adding accumulation Leaching Vanadium, it is characterised in that comprise the following steps：Step 1, bone coal navajoite obtain bone coal miberal powder to be accumulated after broken, ball milling；Step 2, adds water in the bone coal miberal powder to be accumulated, stirs evenly, obtain wet stone coal mine solid to be accumulated Material；Step 3, the concentrated sulfuric acid is added in the wet stone coal mine solid material to be accumulated, stirs evenly, obtains to be accumulated The aqueous and stone coal mine hybrid solid material of sulfuric acid；Step 4, by the described aqueous and stone coal mine hybrid solid solid accumulation of sulfuric acid, stands, obtains stone coal mine to be leached and consolidate Body material；Step 5, adds water in the stone coal mine solid material to be leached, is leached, separation of solid and liquid, obtains containing vanadium Leachate.
- 2. the method for bone coal navajoite acid adding accumulation Leaching Vanadium according to claim 1, it is characterised in that in the step 2 In, the weight ratio of the water and the bone coal miberal powder to be accumulated is 0.1~0.3: 1.
- 3. the method for bone coal navajoite acid adding accumulation Leaching Vanadium according to claim 1, it is characterised in that in the step 3 In, the weight ratio of the concentrated sulfuric acid and the wet stone coal mine solid material to be accumulated is 0.1~0.4: 1.
- 4. the method for bone coal navajoite acid adding accumulation Leaching Vanadium according to claim 1, it is characterised in that in the step 4 In, the described aqueous and stone coal mine hybrid solid solid accumulation of sulfuric acid, the time of standing is 2~5 days.
- 5. the method for bone coal navajoite acid adding accumulation Leaching Vanadium according to claim 1, it is characterised in that in the step 5 In, the weight ratio of the water and the stone coal mine solid material to be leached is 0.5~3: 1.
- 6. the method for bone coal navajoite acid adding accumulation Leaching Vanadium according to claim 1, it is characterised in that in the step 5 In, described leach is leached for room temperature, is carried out separation of solid and liquid to it, is obtained containing vanadium leachate.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110317960A (en) * | 2019-07-30 | 2019-10-11 | 中国科学院过程工程研究所 | A kind of bone coal navajoite curing production equipment and bone coal navajoite curing production method |
| CN110564960A (en) * | 2019-08-29 | 2019-12-13 | 中国科学院过程工程研究所 | Method for extracting vanadium by two-stage pretreatment acid leaching of stone coal vanadium ore |
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| CN103290215A (en) * | 2013-06-17 | 2013-09-11 | 长沙矿冶研究院有限责任公司 | Method for curing and leaching reinforced stone coal navajoite concentrated acid |
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| CN101082085A (en) * | 2007-07-10 | 2007-12-05 | 刘健 | Method for vanadium leaching by sulfate-adding wet-pile oxidation conversion of stone coal under atmospheric temperature and atmosphere pressure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110317960A (en) * | 2019-07-30 | 2019-10-11 | 中国科学院过程工程研究所 | A kind of bone coal navajoite curing production equipment and bone coal navajoite curing production method |
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| CN110564960A (en) * | 2019-08-29 | 2019-12-13 | 中国科学院过程工程研究所 | Method for extracting vanadium by two-stage pretreatment acid leaching of stone coal vanadium ore |
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