CN109112303A - A method of the vanadium extraction from Rock coal containing alum mine - Google Patents
A method of the vanadium extraction from Rock coal containing alum mine Download PDFInfo
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- CN109112303A CN109112303A CN201811336131.1A CN201811336131A CN109112303A CN 109112303 A CN109112303 A CN 109112303A CN 201811336131 A CN201811336131 A CN 201811336131A CN 109112303 A CN109112303 A CN 109112303A
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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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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
- C01B17/06—Preparation of sulfur; Purification from non-gaseous sulfides or materials containing such sulfides, e.g. ores
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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
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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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Abstract
The invention discloses a kind of methods of vanadium extraction from Rock coal containing alum mine, including stone coal mine is crushed to≤50mm, smashed stone coal mine is sieved into multiple grades, the stone coal mine of suitable grade heated and is recycled under vacuum or inert gas conditions elemental sulfur, dry method ore grinding, dry type magnetic separation and place a period of time after mixing Rock coal containing alum preenrichment concentrate, cathode carbon, sulfuric acid and the water after magnetic separation according to 100:5~20:20~40:15~30 ratio, then soak in water and etc..This method can effectively solve the problems, such as to cause the rate of recovery of environmental pollution and vanadium low in vanadium removal process present in existing method, while can also solve discarded electrolytic aluminium cathode carbon handling problems, have production cost low, the high advantage of the rate of recovery.
Description
Technical field
The present invention relates to Rock coal containing alum vanadium extraction fields, and in particular to a method of the vanadium extraction from Rock coal containing alum mine.
Background technique
Vanadium is as the rare metal with own strategic significance, in aircraft industry, atomic energy industry, aerospace industry, national defence
It is applied more and more widely in the fields such as sophisticated industry, is a kind of indispensable valuable source.
Rock coal containing alum is the important navajoite resource of the exclusive one kind in China, and reserves are extremely abundant, and wherein vanadium is with vanadium oxide
Form preservation in vanadium muscovite, vanadium muscovite in the form of sheets or fan-shaped aggregate and the symbiosis of scale bone coal, the structure of vanadium muscovite
It is highly stable, therefore, vanadium extraction difficulty is caused to increase.Also, contain a large amount of impurity in Rock coal containing alum mine, such as pyrite,
SiO2Equal substances, so that ore V2O5Grade is lower, and many times navajoite is generally discarded after recycling bone coal with tailing, makes
At the huge waste of vanadium resource.
During the production of primary aluminum, casting and electrolytic cell overhaul, a large amount of waste cathode carbon block, every one ton of production can be generated
Aluminium, the useless cathode carbon of about 20~30kg of generation.Carbon, sodium fluoride, hexafluoro sodium aluminate, aluminum fluoride, fluorine are typically contained in useless cathode carbon
Change the ingredients such as calcium and aluminium oxide, wherein carbon about 50~70%, electrolyte fluoride about 50~30%.The place of waste cathode carbon block at present
Reason mainly has roasting method, floatation and sulfuric acid decomposition method, these methods can recycle a part of electrolyte in useless cathode carbon and
Carbon dust.But floatation and sulfuric acid decomposition method not can be removed the fluoride in useless cathode carbon, fluoride enters waste liquid and easily causes two
Secondary pollution；Using roasting method using the carbon in useless cathode carbon as fuel recovery, the heat for generation of burning is difficult to efficiently use, cause
A large amount of energy waste, and it is unable to reach the requirement of the control of the rigid temperature in roasting process.
It is existing to be enriched with V from bone coal type navajoite2O5Method in, generally directly adopt wet process vanadium extraction, but there are costs
High problem be easy to cause three-waste pollution, and depositing due to pyrite due to not handling the pyrite in navajoite
The rate of recovery of vanadium is being caused to reduce.Therefore, finding a kind of method for carrying out vanadium extraction using useless cathode carbon is just particularly important.
Summary of the invention
For above-mentioned deficiency in the prior art, the present invention provides a kind of methods of vanadium extraction from Rock coal containing alum mine.It should
Method can effectively solve the rate of recovery for causing environmental pollution and vanadium present in existing extraction vanadium method in vanadium removal process
Low problem.
To achieve the above object, the technical solution adopted by the present invention to solve the technical problems is:
A method of the vanadium extraction from Rock coal containing alum mine, comprising the following steps:
(1) by V2O5The bone coal navajoite that content is 0.3~1.2% is crushed to partial size≤50mm；
(2) coarse fraction stone coal mine broken in step (1) is sieved, the stone coal mine for being 2mm~50mm by grade
Selectivity is pre- to throw tail；
(3) remaining stone coal mine in step (2) is heated under vacuum or inert gas conditions, heating temperature 350
~2350 DEG C, heating time is 1~6min, recycles sulphur simple substance in heating process；
(4) object is made in step (3) and carries out dry method ore grinding, be milled to all logical sieve with 100 mesh sieve；
(5) object is made in step (4) and carries out magnetic separation processing, obtain magnetic iron ore concentrate and Rock coal containing alum preenrichment concentrate；
It (6) is 100:5 according to weight ratio by Rock coal containing alum preenrichment concentrate, cathode carbon, sulfuric acid and water made from step (5)
The ratios of~20:30~40:15~30 is uniformly mixed, and is placed in cool-bag and is carried out reaction 7~14 days, after reaction, to
In cool-bag plus then water is stirred 2 hours, finally filters so that solid-to-liquid ratio is 1~3:1~3, is made and contains vanadium solution.
Further, V in Rock coal containing alum2O5Content 0.3~1.2%, C content in 15~30%, SiO2Content is 60
~80%.
Further, pre- throwing tail is carried out to the stone coal mine that grade is+30mm in step (2).
Further, step (3) carries out in vacuum sintering furnace.
Further, the heating temperature in step (3) is 600~700 DEG C, and heating time is 2~5min.
Further, equipment used by dry method ore grinding is ball mill, rod mill, baseball grinding machine or gravel in step (4)
Grinding machine.
Further, dry-type magnetic extractor is used when magnetic separation is handled in step (5).
Further, in step (6) Rock coal containing alum preenrichment concentrate, cathode carbon, sulfuric acid and water according to weight ratio be 100:5
The ratio of~15:30~35:20~25 is uniformly mixed, and is placed in cool-bag and is carried out reaction 7-10 days, after reaction, Xiang Bao
In warm container plus then water is stirred 2 hours, finally filters so that solid-to-liquid ratio is 1~2:1~2, is made and contains vanadium solution.
Further, in step (6) Rock coal containing alum preenrichment concentrate, cathode carbon, sulfuric acid and water according to weight ratio be 100:
The ratio of 10:30:20 is uniformly mixed, and is placed in container and is carried out reaction 7 days；After reaction, water is added into cool-bag, so that
Solid-to-liquid ratio is 1:1, is then stirred 2 hours, finally filters, and is made and contains vanadium solution.
Further, the industrial sulphuric acid that sulfuric acid is 98%.
The invention has the benefit that
1, it is different that present invention utilizes the hardness of different minerals in bone coal, in combination with preservation of the vanadium in mineral not of the same race
State and content are different, throw tail in advance using crumbling method, the stone coal mine of content≤0.25% is thrown tail in advance, improves residue
Stone coal mine in pentoxide content can facilitate subsequent step after having carried out preliminary enrichment work to vanadium from stone coal vanadium
Operation, not only saved production cost, but also shorten the production time.
2, the cathode carbon generated in aluminum electrolysis industry is cleverly successfully applied to extracting vanadium from stone coal field by the present invention, due to useless
Abandon cathode carbon fluorine in leaching process and be transformed into hydrofluoric acid in acid condition, hydrofluoric acid can be located in lattice containing roscoelite
Silicon and aluminium combine and generate hexafluorosilicic acid root and five fluoaluminic acid roots, destroy the crystal structure containing roscoelite completely, make silicic acid containing vanadium
Salt mineral dissolution releases vanadium oxonium ion in acid leaching liquor, reduces the influence chemically reacted to vanadium leaching process, makes acidleach
Interior diffusion control is changed by Chemical Control when process is participated in by floride-free compound, to accelerate the progress of vanadium Leach reaction, is mentioned
The high leaching rate of vanadium；Reaction raw materials are placed in cool-bag, sulfuric acid meets water heat release, provides heat, cool-bag for reaction
The temperature of reaction mass can be made to control in 80~150 DEG C, without specially providing heat for reaction；The introducing of discarded cathode carbon is mentioned
Vanadium field not only can be improved the leaching rate of vanadium, but also can reduce the cost of vanadium extracting process, can also solve discarded cathode carbon and be difficult to
The problem of resource utilization.
3, present invention utilizes pyrite is transformed into the spy of magnetic iron ore and elemental sulfur under high temperature and atmosphere of inert gases
Property.It will be introduced into vacuum sintering furnace by the bone coal mineral for throwing tail in advance, mineral heated in atmosphere of inert gases, it is yellow
Iron ore is transformed into magnetic iron ore and elemental sulfur, chemical equation FeS2→ Fe1-xS+xS reduces containing for sulphur in stone coal mine
Amount, is further enriched with the vanadium in bone coal navajoite, while recycling to the sulphur simple substance of generation, effectively prevents it to ring
Border pollutes.
4, the method that the present invention uses dry method ore grinding, effectively prevents the work for needing to volatilize in water after wet milling
Sequence shortens production stage, greatly reduces the production time；Meanwhile when using dry method ore grinding, since front carries out vanadium
Enrichment work, content of vanadium is opposite in stone coal mine improves, in dry method ore grinding, under can entering when stone coal mine is milled to compared with coarse fraction
One process reduces the cost of ore grinding, shortens the ore grinding time, improves the efficiency of production.
5, the present invention dexterously utilizes the natural magnetism of magnetic iron ore, by the stone after sintering furnace processing and dry method ore grinding
Coal mine is sent into dry-type magnetic extractor and is sorted, and magnetic iron ore concentrate and Rock coal containing alum concentrate are finally obtained.
6, the present invention will throw tail, high-temperature vacuum processing, dry method ore grinding, dry type magnetic separation and half wet process process for extracting vanadium in advance and combine
It is operated together, mutual cooperation acts between each step, the final enrichment work realized to vanadium；Method tool of the invention
There is a following benefit, first, compared with conventional flotation Preconcentration, there is advantage at low cost, this method solve low-grade
The problem of grade is difficult to improve under the conditions of Rock coal containing alum low cost；The second, solving bone coal pyrogenic process desulfurization causes acid gas to pollute ring
The problem of border, realizes stone coal mine upgrading and drops miscellaneous double effects；Third, the side combined using preenrichment and high temperature desulfurizing
Method improves the rate of recovery of vanadium；4th, the discarded cathode carbon for generating aluminum electrolysis industry is applied to extracting vanadium from stone coal field, success
Solve the problems, such as that discarded cathode carbon is difficult to resource utilization.
Specific embodiment
Embodiment 1
A kind of Rock coal containing alum high-efficiency desulfurization Preconcentration, comprising the following steps:
Sichuan stone coal mine, appearance thickness is uneven, dark brown, V2O5Average content is about 0.353%, according to present invention side
Method handle 68.86kg ore, be crushed, then with dry screen successively screen out+50mm, 50~30mm, 30~20mm, 20~
10mm, 10mm~2mm, -2mm coarse fraction, weight to each grade and wherein V2O5Content and distributive law are detected, experiment
It the results are shown in Table 1.Remaining stone coal mine is heated in vacuum sintering furnace, heating temperature is 680~700 DEG C, and heating time is
5min recycles sulphur simple substance in heating process；Stone coal mine after heating is subjected to dry method ore grinding using ball mill, is milled to and all passes through
100 meshes；Then dry-type magnetic extractor is used to carry out magnetic separation processing, magnetic separation is slightly swept and a smart sorting process, acquisition magnetic using one
Sulphur ore and Rock coal containing alum preenrichment concentrate, count magnetic separation result, concrete outcome is shown in Table 2.
Mineral processing index is sieved in 1 Sichuan stone coal mine physical upgrading of table
| Grade | Weight kg | Yield % | V2O5% | Distributive law % |
| +50mm | 5.40 | 7.84 | 0.185 | 4.12 |
| 50~30mm | 10.00 | 14.52 | 0.232 | 9.56 |
| 30~20mm | 6.20 | 9.00 | 0.248 | 6.33 |
| 20~10mm | 9.66 | 14.03 | 0.328 | 13.05 |
| 10~2mm | 14.50 | 21.06 | 0.340 | 20.31 |
| ~2mm | 23.10 | 33.55 | 0.490 | 46.63 |
| Raw ore | 68.86 | 100.00 | 0.353 | 100.00 |
The V in the stone coal mine of -20mm grade is learnt by table 12O5Account for about 80%, the V in the stone coal mine of+20mm grade2O5Contain
It measures lower, can be used as tailing and carry out throwing tail.
2 magnetic separation separating experiment result of table
It is learnt by table 2, vanadium distributive law reaches 95.27% in the preenrichment vanadium concentrate that the method according to the invention obtains, sulphur
Distribution of sulfur reaches 79.77% in concentrate, realizes the purpose that preenrichment is carried out to vanadium, while obtaining iron concentrate.
Above-mentioned preenrichment vanadium concentrate 1kg is taken, with discarded cathode carbon, 98% sulfuric acid and water according to weight ratio is 100 by it:
10:30:20's is uniformly mixed, as experimental group；Above-mentioned preenrichment vanadium concentrate 1kg is taken, by it with the concentrated sulfuric acid and water according to weight
Than being uniformly mixed for 100:30:20, as a control group；Experimental group and control group are placed in cool-bag respectively and reacted 7 days；
After reaction, water is added into cool-bag, so that solid-to-liquid ratio is 1:1, is then stirred 2 hours.To V2O5It is detected,
Concrete outcome is shown in Table 3.
3 control group of table and non-control group experimental result
It is learnt by table 3, preenrichment vanadium concentrate is after the processing of cathode carbon and 98% sulfuric acid, the grade of vanadium in leached mud
It is reduced to 0.05% by original 0.46%, most of vanadium is fully dissolved in solution, and the leaching rate of vanadium is up to
90.03%, realize the purpose of high efficiency vanadium extraction.
Embodiment 2
A kind of Rock coal containing alum high-efficiency desulfurization Preconcentration, comprising the following steps:
Sichuan stone coal mine, appearance thickness is uneven, dark brown, V2O5Average content is about 1.2%, according to the method for the present invention
Handle 70.12kg ore, be crushed, then with dry screen successively screen out+50mm, 50~30mm, 30~20mm, 20~
10mm, 10mm~2mm, -2mm coarse fraction, weight to each grade and wherein V2O5Content and distributive law are detected, experiment
It the results are shown in Table 4.Remaining stone coal mine is heated in vacuum sintering furnace, heating temperature is 380~460 DEG C, and heating time is
6min recycles sulphur simple substance in heating process；Stone coal mine after heating is subjected to dry method ore grinding using rod mill, is milled to and all passes through
60 meshes；Then dry-type magnetic extractor progress magnetic separation processing is used, magnetic separation is slightly swept and a smart sorting process, acquisition magnetic Huang using one
Iron ore concentrate and Rock coal containing alum preenrichment concentrate, count magnetic separation result, concrete outcome is shown in Table 5.
Mineral processing index is sieved in 4 Sichuan stone coal mine physical upgrading of table
| Grade | Weight kg | Yield % | V2O5% | Distributive law % |
| +50mm | 3.9 | 5.61 | 0.186 | 5.20 |
| 50~30mm | 5.4 | 7.70 | 0.239 | 8.59 |
| 30~20mm | 6.80 | 9.69 | 0.254 | 7.12 |
| 20~10mm | 11.23 | 16.01 | 1.998 | 14.55 |
| 10~2mm | 16.25 | 23.17 | 2.172 | 19.31 |
| ~2mm | 26.54 | 37.82 | 2.351 | 45.23 |
| Raw ore | 70.12 | 100.00 | 1.20 | 100.00 |
The V in the stone coal mine of -30mm grade is learnt by table 42O5Account for about 86.7%, the V in the stone coal mine of+30mm grade2O5
Content is lower, can be used as tailing and carries out throwing tail.
5 magnetic separation separating experiment result of table
It is learnt by table 5, vanadium distributive law reaches 95.26% in the preenrichment vanadium concentrate that the method according to the invention obtains, sulphur
Distribution of sulfur reaches 71.33% in concentrate, realizes the purpose that preenrichment is carried out to vanadium, while obtaining iron concentrate.
Above-mentioned preenrichment vanadium concentrate 1kg is taken, with discarded cathode carbon, 98% sulfuric acid and water according to weight ratio is 100 by it:
15:35:25's is uniformly mixed, as experimental group；Above-mentioned preenrichment vanadium concentrate 1kg is taken, by it with the concentrated sulfuric acid and water according to weight
Than being uniformly mixed for 100:35:25, as a control group；；After reaction, water is added into cool-bag, so that solid-to-liquid ratio is
Then 1:2 is stirred 2 hours.To V2O5It is detected, concrete outcome is shown in Table 6.
6 control group of table and non-control group experimental result
It is learnt by table 6, preenrichment vanadium concentrate is after the processing of cathode carbon and 98% sulfuric acid, the grade of vanadium in leached mud
It is reduced to 0.32% by original 2.45%, most of vanadium is fully dissolved in solution, and the leaching rate of vanadium is up to
88.11%, realize the purpose of high efficiency vanadium extraction.
Embodiment 3
A kind of Rock coal containing alum high-efficiency desulfurization Preconcentration, comprising the following steps:
Sichuan stone coal mine, appearance thickness is uneven, dark brown, V2O5Average content is about 0.895%, according to present invention side
Method handle 66.54kg ore, be crushed, then with dry screen successively screen out+50mm, 50~30mm, 30~20mm, 20~
10mm, 10mm~2mm, -2mm coarse fraction, weight to each grade and wherein V2O5Content and distributive law are detected, experiment
It the results are shown in Table 7.Remaining stone coal mine is heated in vacuum sintering furnace, heating temperature is 1750~1856 DEG C, and heating time is
2min recycles sulphur simple substance in heating process；Stone coal mine after heating is subjected to dry method ore grinding using ball mill, is milled to and all passes through
100 meshes；Then dry-type magnetic extractor is used to carry out magnetic separation processing, magnetic separation is slightly swept and a smart sorting process, acquisition magnetic using one
Sulphur ore and Rock coal containing alum preenrichment concentrate, count magnetic separation result, concrete outcome is shown in Table 8.
Mineral processing index is sieved in 7 Sichuan stone coal mine physical upgrading of table
| Grade | Weight kg | Yield % | V2O5% | Distributive law % |
| +50mm | 3.3 | 4.95 | 0.194 | 4.12 |
| 50~30mm | 5.12 | 7.69 | 0.216 | 9.56 |
| 30~20mm | 7.91 | 11.89 | 0.249 | 6.33 |
| 20~10mm | 9.08 | 13.65 | 1.355 | 13.05 |
| 10~2mm | 14.61 | 21.96 | 1.495 | 20.31 |
| ~2mm | 26.52 | 39.85 | 1.860 | 46.63 |
| Raw ore | 66.54 | 100.00 | 0.895 | 100.00 |
The V in the stone coal mine of -30mm grade is learnt by table 72O5Account for about 80%, the V in the stone coal mine of+30mm grade2O5Contain
It measures lower, can be used as tailing and carry out throwing tail.
8 magnetic separation separating experiment result of table
It is learnt by table 8, vanadium distributive law reaches 95.02% in the preenrichment vanadium concentrate that the method according to the invention obtains, sulphur
Distribution of sulfur reaches 71.69% in concentrate, realizes the purpose that preenrichment is carried out to vanadium, while obtaining iron concentrate.
Above-mentioned preenrichment vanadium concentrate 1kg is taken, with discarded cathode carbon, 98% sulfuric acid and water according to weight ratio is 100 by it:
20:40:25's is uniformly mixed, as experimental group；Above-mentioned preenrichment vanadium concentrate 1kg is taken, by it with the concentrated sulfuric acid and water according to weight
Than being uniformly mixed for 100:40:25, as a control group；Experimental group and control group are placed in cool-bag respectively and impregnate 10
It；After reaction, water is added into cool-bag, so that solid-to-liquid ratio is 3:1, is then stirred 2 hours.To V2O5It is examined
It surveys, concrete outcome is shown in Table 9.
9 control group of table and non-control group experimental result
It is learnt by table 9, preenrichment vanadium concentrate is after the processing of cathode carbon and 98% sulfuric acid, the grade of vanadium in leached mud
It is reduced to 0.22% by original 1.86%, most of vanadium is fully dissolved in solution, and the leaching rate of vanadium is up to
87.81%, realize the purpose of high efficiency vanadium extraction.
Claims (10)
1. a kind of method of the vanadium extraction from Rock coal containing alum mine, which comprises the following steps:
(1) bone coal navajoite is crushed to partial size≤50mm；
(2) coarse fraction stone coal mine broken in step (1) is sieved, the stone coal mine that grade is 2mm~50mm is selected
Property throws tail in advance；
(3) remaining stone coal mine in step (2) being heated under vacuum or inert gas conditions, temperature is 350~2350 DEG C,
Heating time is 1~6min, recycles sulphur simple substance in heating process；
(4) object is made in step (3) and carries out dry method ore grinding, be milled to all logical sieve with 100 mesh sieve；
(5) object is made in step (4) and carries out magnetic separation processing, obtain magnetic iron ore concentrate and Rock coal containing alum preenrichment concentrate；
(6) by Rock coal containing alum preenrichment concentrate, cathode carbon, sulfuric acid and water made from step (5) according to weight ratio be 100:5~
The ratio of 20:30~40:15~30 is uniformly mixed, and is placed in container and is carried out reaction 7~14 days；After reaction, hold to heat preservation
In device plus then water is stirred 2 hours, finally filters so that solid-to-liquid ratio is 1~3:1~3, is made and contains vanadium solution.
2. the method for the vanadium extraction according to claim 1 from Rock coal containing alum mine, which is characterized in that in the Rock coal containing alum
V2O5Content 0.3~1.2%, C content in 15~30%, SiO2Content is 60~80%.
3. the method for the vanadium extraction according to claim 1 from Rock coal containing alum mine, which is characterized in that grade in step (2)
Pre- throwing tail is carried out for the stone coal mine of+30mm.
4. the method for the vanadium extraction according to claim 1 from Rock coal containing alum mine, which is characterized in that step (3) is burnt in vacuum
It is carried out in freezing of a furnace.
5. the method for the vanadium extraction according to claim 1 from Rock coal containing alum mine, which is characterized in that the heating in step (3)
Temperature is 600~700 DEG C, and heating time is 2~5min.
6. the method for the vanadium extraction according to claim 1 from Rock coal containing alum mine, which is characterized in that dry method is ground in step (4)
Equipment used by mine is ball mill, rod mill, baseball grinding machine or pebble plain.
7. the method for the vanadium extraction according to claim 1 from Rock coal containing alum mine, which is characterized in that in step (5) at magnetic separation
Dry-type magnetic extractor is used when reason.
8. the method for the vanadium extraction according to claim 1 from Rock coal containing alum mine, which is characterized in that contain scherbinaite in step (6)
Coal preenrichment concentrate, cathode carbon, sulfuric acid and water are that ratio mixing in 100:5~15:30~35:20~25 is equal according to weight ratio
It is even, it is placed in cool-bag and carries out reaction 7~10 days；After reaction, into cool-bag plus water so that solid-to-liquid ratio be 1~
Then 2:1~2 are stirred 2 hours, finally filter, be made and contain vanadium solution.
9. the method for vanadium extraction in slave Rock coal containing alum mine according to claim 1 or 8, which is characterized in that contain vanadium in step (6)
Bone coal preenrichment concentrate, cathode carbon, sulfuric acid and water are uniformly mixed according to the ratio that weight ratio is 100:10:30:20, are placed in container
In carry out reaction 7 days；After reaction, water is added into cool-bag, so that solid-to-liquid ratio is 1:1, is then stirred 2 hours,
It finally filters, is made and contains vanadium solution.
10. the method for vanadium extraction in slave Rock coal containing alum mine according to claim 1 or 8, which is characterized in that the sulfuric acid is
98% industrial sulphuric acid.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2020100276B4 (en) * | 2019-05-29 | 2021-04-08 | Vanadia Pty Ltd | This is an extraction process which maximises resource utilisation by pre-concentrating vanadium oxides from overburden above a metal deposit and from vanadium - bearing iron ore deposits. |
| CN113953079A (en) * | 2021-10-13 | 2022-01-21 | 中国科学院过程工程研究所 | A method for roasting polymetallic shale-enriching vanadium |
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| CN101239740A (en) * | 2008-03-07 | 2008-08-13 | 昆明理工大学 | Method for producing vanadium pentoxide jointly from vanadium-containing stone coal mine and fluorite |
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| CN113953079A (en) * | 2021-10-13 | 2022-01-21 | 中国科学院过程工程研究所 | A method for roasting polymetallic shale-enriching vanadium |
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