CN105821221A - Method for producing vanadium products cleanly with vanadium-containing raw materials - Google Patents
Method for producing vanadium products cleanly with vanadium-containing raw materials Download PDFInfo
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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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting 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
- C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
- C22B26/10—Obtaining alkali metals
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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
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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
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention provides a method for producing vanadium products cleanly with vanadium-containing raw materials. The method includes the following steps that (1) the vanadium-containing raw materials are subjected to sodium salt roasting and aftertreatment to obtain a vanadium-containing purified solution; (2) the vanadium-containing purified solution and CO2 react under the conditions that the pressure is 0.5-2.5 MPa and the temperature is 70-160 DEG C, then solid-liquid separation is conducted to obtain sodium carbonate crystals and/or sodium bicarbonate crystals and a vanadium-containing solution, and the sodium carbonate crystals and/or the sodium bicarbonate crystals are used as an additive for sodium salt roasting in the step (1); and (3) the vanadium-containing solution is subjected to aftertreatment to obtain vanadium-containing red cakes and a vanadium-precipitated solution, and the vanadium- precipitated solution is used as a leaching solvent in the step (1). By means of the method, the vanadium recovery rate is high (higher than 98%), the process is short and easy to operate, and the technique is simple and good in safety; the treatment processes such as vanadium removal, chromium removal, ammonia removal and salt evaporation for waste water of a conventional vanadium precipitation technique are omitted, environmental friendliness is achieved, and environment-friendly and clean production of vanadium is achieved.
Description
Technical field
The invention belongs to vanadium field of chemical metallurgical technology, relate to a kind of cleaning containing vanadium raw materials and produce the side of vanadium product
Method, particularly relates to a kind of sodium process for extracting vanadium and reclaims the method that sodium salt cleaning produces vanadium product.
Background technology
The traditional method of vanadium production is vanadium slag sodium roasting-ammonium salt precipitation method, and wherein the vanadium of more than 65% produces
Product come from the method.The ammonium salt sedimentation method have two kinds: a kind of is first to be adjusted to by the pH value of the solution containing pentavalent vanadium
8.5-9.5, add ammonium salt Precipitation ammonium metavanadate；Another kind is to use substep to reconcile the pH value of solution extremely
1.5-2.5, add ammonium salt Precipitation ammonium poly-vanadate；Afterwards, by the ammonium metavanadate obtained or ammonium poly-vanadate through forging
Burning obtains vanadic anhydride.The main deficiency of this technique is: the response rate of vanadium is low, and the ammonium process of sinking can produce greatly
The high salinity ammonia nitrogen waste water of amount, it is 35-40 ton that vanadic anhydride per ton produces wastewater flow rate, and environmental pollution is serious；
Waste water treatment cost is high, administers cost big.
CN 101157478A proposes the preparation method of a kind of ammonium poly-vanadate, containing the chlorination added in vanadium solution
Calcium or calcium nitrate generate calcium vanadate, then turn molten with ammonium hydrogen carbonate, and vanadium enters solution, and calcium generates calcium carbonate,
Liquid sulfur acid for adjusting pH after precipitation, precipitation obtains ammonium poly-vanadate.This technique is compared with traditional handicraft, and precipitation is given up
In water, ammonia content relatively traditional handicraft has reduced, but there is the emission problem of ammonia nitrogen waste water.
In view of existing vanadium slag sodium roasting vanadium-extracting utilizes technology to be difficult to meet the requirement of vanadium cleaner Production in Chemical Industry, because of
This must research and develop from source, it is achieved the method for vanadium high efficiency extraction in vanadium liquid, and exploitation solves environmental pollution
Green cleaning produces vanadium extraction technology.
Summary of the invention
The deficiency existed for prior art, it is an object of the invention to provide a kind of cleaning containing vanadium raw materials and produces
The method of vanadium product, the vanadium extraction efficiency of described method is high, and technological process is short, easy and simple to handle, and production cost is low,
The zero-emission being capable of vanadium wastewater recycles with medium, is a kind of method cleaning and producing vanadium product.
For reaching this purpose, the present invention by the following technical solutions:
A kind of method that cleaning containing vanadium raw materials produces vanadium product, described method comprises the steps:
(1) containing vanadium raw materials through sodium roasting, post processing, obtain containing vanadium scavenging solution；
(2) vanadium scavenging solution and CO will be contained2Being 0.5-2.5MPa at pressure, temperature is anti-under the conditions of being 70-160 DEG C
Should, solid-liquid separation afterwards, obtain sodium carbonate and/or sodium bicarbonate crystal and containing vanadium solution, described sodium carbonate
And/or sodium bicarbonate crystal returns step (1), for the additive of sodium roasting；
(3) post-treated containing vanadium solution, obtain containing solution after the red cake of vanadium and precipitation, after precipitation, solution returns step
Suddenly (1) is for the solvent leached.
The cleaning containing vanadium raw materials that the present invention provides produces the method for vanadium product and uses containing vanadium scavenging solution and CO2Anti-
Sodium carbonate should will be converted into and/or sodium bicarbonate is used for the interpolation of sodium roasting containing the sodium ion in vanadium scavenging solution
Agent, it is achieved recycling of additive；To be eventually converted into containing the red cake of vanadium, i.e. vanadium containing the vanadium in vanadium scavenging solution
Product, the solution after precipitation returns the leaching containing vanadium raw materials, thus realizes recycling of solvent.
Described method is by by the separation containing the cation in vanadium scavenging solution and vanadium, useless after thoroughly achieving precipitation
The zero-emission of water recycles with medium；Eliminate the vanadium removal of conventional precipitation technique waste water, de-chromium, deamination
Deng governance process, environmental friendliness, it is achieved that the green cleaning of vanadium produces.
Step (1) is described is containing vanadium mineral containing vanadium raw materials, preferably vanadium slag and/or bone coal.
Step (1) described post processing is water logging and remove impurity, and it is miscellaneous that described remove impurity is conducive to containing in vanadium scavenging solution
Matter is removed, and obtains purity higher containing the red cake of vanadium.Described water logging and remove impurity are operation commonly used in the art, this
Skilled person can realize easily.
Step (1) is described is the solution containing vanadate containing vanadium scavenging solution, described vanadate can be positive vanadate,
Any one or the combination of at least two in metavanadate or vanadate, be preferably containing vanadic acid sodium is molten
Liquid, more preferably containing the vanadium solution obtained after vanadium raw materials sodium process for extracting vanadium remove impurity.
Preferably, step (1) is described containing the concentration >=20g/L of vanadium in vanadium scavenging solution, as 21g/L, 23g/L,
25g/L, 27g/L, 30g/L, 40g/L, 50g/L or 100g/L etc., preferably 22-28g/L.
The temperature of step (2) described reaction is 70-160 DEG C, as 75 DEG C, 78 DEG C, 80 DEG C, 82 DEG C, 85 DEG C,
92 DEG C, 95 DEG C, 98 DEG C, 100 DEG C, 105 DEG C, 110 DEG C, 120 DEG C, 130 DEG C, 140 DEG C, 150 DEG C or 155 DEG C
Deng, preferably 100-150 DEG C.
The pressure of step (2) described reaction is 0.5-2.5MPa, as 0.8MPa, 1.0MPa, 1.5MPa,
1.8MPa, 2.2MPa or 2.5MPa etc., preferably 1.0-2.0MPa.
Described containing vanadium scavenging solution and CO2It is only 0.5-2.5MPa at pressure, under the conditions of temperature is 70-160 DEG C
Reaction, just can obtain sodium carbonate and/or sodium bicarbonate crystal and containing vanadium solution.
The time of step (2) described reaction is 1-6h, such as 1.5h, 2h, 3h, 4h, 5h or 5.5h etc.,
It is preferably 1.5-6h.
Step (3) described post processing is: will contain vanadium solution and regulate pH value in a heated condition.Utilize containing vanadium
The content that solution preparation red cake Han vanadium is known in the art, those skilled in the art can regulate according to actual needs
The temperature of heating and pH value.
The described Crack cause containing the red cake of vanadium of step (3) is: along with the increase containing vanadium solution acidity, vanadic acid root
Separate out with the form of vanadic acid, form the red cake Han vanadium.The described further roasting of red cake containing vanadium can obtain five oxidations two
Vanadium.
Preferably, the concentration≤0.6g/L of vanadium in solution after step (3) described precipitation, as 0.5g/L, 0.4g/L,
0.3g/L, 0.2g/L, 0.1g/L or 0.05g/L etc..
As preferred technical scheme, described method comprises the steps:
(1) containing vanadium raw materials through sodium roasting, water logging, remove impurity, obtain containing vanadium scavenging solution；
(2) vanadium scavenging solution and CO will be contained2It is 70-160 DEG C in temperature, under the conditions of pressure is 0.5-2.5MPa
Reaction 1-6h, obtains product；
(3) product is carried out solid-liquid separation, obtain sodium carbonate and/or sodium bicarbonate crystal and containing vanadium molten
Liquid, sodium carbonate and/or sodium bicarbonate crystal return step (1) for the additive containing vanadium raw materials sodium roasting；
(4) after regulating pH value in a heated condition containing vanadium solution, solid-liquid separation, obtain containing the red cake of vanadium and sink
Solution after vanadium, after precipitation, solution returns step (1) for the solvent leached.
Solid-liquid separation in the method for the invention is the operation that this area is conventional, typical but non-limiting solid
Liquid separate mode such as filtration or centrifugation etc..
Compared with prior art, the invention have the benefit that
(vanadium recovery is more than the method vanadium recovery height containing vanadium raw materials cleaning production vanadium product that the present invention provides
98%), flow process is short, it is easy to operation, technique is simple and safety good；
The cleaning containing vanadium raw materials that the present invention provides produce the method for vanadium product by by containing the sodium in vanadium scavenging solution and
Vanadium separates, it is possible to realizes the recycling of sodium process for extracting vanadium sodium salt, thoroughly achieves the zero-emission of vanadium wastewater
Put and recycle with medium；
The cleaning containing vanadium raw materials that the present invention provides produces the method for vanadium product and eliminates conventional precipitation technique waste water
The governance processes such as vanadium removal, de-chromium, deamination and steaming salt, environmental friendliness, it is achieved that the green cleaning of vanadium produces.
Accompanying drawing explanation
Fig. 1 is to reclaim sodium salt cleaning in the vanadium slag sodium process for extracting vanadium that one embodiment of the present invention provides to produce
The process chart of vanadium product.
Detailed description of the invention
Further illustrate technical scheme below in conjunction with the accompanying drawings and by detailed description of the invention.
A kind of vanadium slag sodium process for extracting vanadium reclaims sodium salt cleaning and produces the technological process of vanadium product, such as Fig. 1 institute
Show.Described technique comprises the steps:
(1) vanadium slag carries out sodium roasting, water logging, remove impurity, obtains containing vanadium scavenging solution；
(2) vanadium scavenging solution and CO will be contained2Reaction, obtains product；
(3) product is carried out solid-liquid separation, obtain sodium carbonate and/or sodium bicarbonate crystal and containing vanadium molten
Liquid, sodium carbonate and/or sodium bicarbonate crystal return step (1) for the additive containing vanadium raw materials sodium roasting；
(4) after regulating pH value in a heated condition containing vanadium solution, solid-liquid separation, obtain containing the red cake of vanadium and sink
Solution after vanadium, after precipitation, solution returns step (1) for the solvent leached.
Embodiment 1:
A kind of sodium process for extracting vanadium reclaims the method that sodium salt cleaning produces vanadium product, comprises the steps:
(1) vanadium slag is through sodium roasting, water logging, remove impurity, obtains containing vanadium scavenging solution；
(2) it is passed through CO to containing in vanadium scavenging solution (V=25g/L, Na=19.2g/L)2, pressure be 2.0MPa,
React under the conditions of temperature T=150 DEG C, response time t=1.5h, filter, obtain sodium carbonate and/or carbonic acid
Hydrogen sodium crystal returns the roasting described in step (1) with containing vanadium solution, described sodium carbonate and/or sodium bicarbonate crystal
Burning, for the sodium salt additive of vanadium slag sodium vanadium extraction, sodium is recycled utilization；
(3) will contain vanadium solution regulating pH in a heated condition is 2.0, filters, obtains containing the red cake of vanadium and precipitation
Rear solution；
(4) solution after precipitation (V=0.4g/L, Na=3.59g/L) is returned step (1), ripe for vanadium slag
The leaching of material, after precipitation, solution is recycled.
After testing, calculating, in the present embodiment, vanadium comprehensive yield is 98.5%；The response rate of sodium is 81.3%.
Embodiment 2:
A kind of sodium process for extracting vanadium reclaims the method that sodium salt cleaning produces vanadium product, comprises the steps:
(1) vanadium slag is through sodium roasting, water logging, remove impurity, obtains containing vanadium scavenging solution；
(2) it is passed through CO to containing in vanadium scavenging solution (V=23g/L, Na=18.6g/L)2, pressure be 1.5MPa,
React under the conditions of temperature T=130 DEG C, response time t=3h, filter, obtain sodium carbonate/bicarbonate brilliant
Body and containing vanadium solution, described sodium carbonate and/or sodium bicarbonate crystal return the roasting described in step (1), use
In the sodium salt additive of vanadium slag sodium vanadium extraction, sodium is recycled utilization；
(3) will contain vanadium solution regulating pH in a heated condition is 2.2, filters, obtains containing the red cake of vanadium and precipitation
Rear solution；
(4) solution after precipitation (V=0.6g/L, Na=3.35g/L) is returned step (1), ripe for vanadium slag
The leaching of material, after precipitation, the molten liquid that obtains recycles.
After testing, calculating, in the present embodiment, vanadium comprehensive yield is 98.2%；The response rate of sodium is 82%.
Embodiment 3:
A kind of sodium process for extracting vanadium reclaims the method that sodium salt cleaning produces vanadium product, comprises the steps:
(1) vanadium slag is through sodium roasting, water logging, remove impurity, obtains containing vanadium scavenging solution；
(2) it is passed through CO to containing in vanadium scavenging solution (V=28g/L, Na=22.4g/L)2, pressure be 1.2MPa,
React under the conditions of temperature T=100 DEG C, response time t=5h, filter, obtain sodium carbonate/bicarbonate brilliant
Body returns the roasting described in step (1) with containing vanadium solution, described sodium carbonate and/or sodium bicarbonate crystal, uses
In the sodium salt additive of vanadium slag sodium vanadium extraction, sodium is recycled utilization；
(3) will contain vanadium solution regulation pH is 1.8, filters, obtains containing solution after the red cake of vanadium and precipitation；
(4) solution after precipitation (V=0.35g/L, Na=3.70g/L) is returned step (1), ripe for vanadium slag
The leaching of material, after precipitation, solution is recycled.
After testing, calculating, in the present embodiment, vanadium comprehensive yield is 98.6%；The response rate of sodium is 83.6%.
Embodiment 4:
A kind of sodium process for extracting vanadium reclaims the method that sodium salt cleaning produces vanadium product, comprises the steps:
(1) vanadium slag is through sodium roasting, water logging, remove impurity, obtains containing vanadium scavenging solution；
(2) it is passed through CO to containing in vanadium scavenging solution (V=22g/L, Na=17.8g/L)2, pressure be 1.0MPa,
React under the conditions of temperature T=120 DEG C, response time t=6h, filter, obtain sodium carbonate/bicarbonate brilliant
Body returns the roasting described in step (1) with containing vanadium solution, described sodium carbonate and/or sodium bicarbonate crystal, uses
In the sodium salt additive of vanadium slag sodium vanadium extraction, sodium is recycled utilization；
(3) will contain vanadium solution regulating pH in a heated condition is 1.6, filters, obtains containing the red cake of vanadium and precipitation
Rear solution；
(4) solution after precipitation (V=0.55g/L, Na=3.52g/L) is returned step (1), ripe for vanadium slag
The leaching of material, after precipitation, solution is recycled.
After testing, calculating, in the present embodiment, vanadium comprehensive yield is 98.1%；The response rate of sodium is 80.2%.
Embodiment 5
A kind of sodium process for extracting vanadium reclaims the method that sodium salt cleaning produces vanadium product, comprises the steps:
(1) vanadium slag is through sodium roasting, water logging, remove impurity, obtains containing vanadium scavenging solution；
(2) it is passed through CO to containing in vanadium scavenging solution (V=20g/L, Na=17.8g/L)2, pressure be 0.5MPa,
React under the conditions of temperature T=160 DEG C, response time t=1h, filter, obtain sodium carbonate/bicarbonate brilliant
Body returns the roasting described in step (1) with containing vanadium solution, described sodium carbonate and/or sodium bicarbonate crystal, uses
In the sodium salt additive of vanadium slag sodium vanadium extraction, sodium is recycled utilization；
(3) will contain vanadium solution regulating pH in a heated condition is 1.6, filters, obtains containing the red cake of vanadium and precipitation
Rear solution；
(4) solution after precipitation (V=0.55g/L, Na=3.52g/L) is returned step (1), ripe for vanadium slag
The leaching of material, after precipitation, solution is recycled.
After testing, calculating, in the present embodiment, vanadium comprehensive yield is 98.1%；The response rate of sodium is 80.2%.
Embodiment 6
A kind of sodium process for extracting vanadium reclaims the method that sodium salt cleaning produces vanadium product, and processing step is as described below:
(1) vanadium slag is through sodium roasting, water logging, remove impurity, obtains containing vanadium scavenging solution；
(2) it is passed through CO to containing in vanadium scavenging solution (V=50g/L, Na=17.8g/L)2, pressure be 2.5MPa,
React under the conditions of temperature T=70 DEG C, response time t=1h, filter, obtain sodium carbonate/bicarbonate crystal
Return the roasting described in step (1) with containing vanadium solution, described sodium carbonate and/or sodium bicarbonate crystal, be used for
The sodium salt additive of vanadium slag sodium vanadium extraction, sodium is recycled utilization；
(3) will contain vanadium solution regulating pH in a heated condition is 1.6, filters, obtains containing the red cake of vanadium and precipitation
Rear solution；
(4) solution after precipitation (V=0.55g/L, Na=3.52g/L) is returned step (1), ripe for vanadium slag
The leaching of material, after precipitation, solution is recycled.
After testing, calculating, in the present embodiment, vanadium comprehensive yield is 98.15%；The response rate of sodium is 80.2%.
Comparative example 1
A kind of sodium process for extracting vanadium reclaims the method that sodium salt cleaning produces vanadium product, and described method removes reaction temperature
Being 65 DEG C, reaction pressure is that outside 3.0MPa, remaining is same as in Example 1.
After testing, calculating, in the present embodiment, vanadium comprehensive yield is 73.01%；The response rate of sodium is 65.34%.
Comparative example 2
A kind of sodium process for extracting vanadium reclaims the method that sodium salt cleaning produces vanadium product, and described method removes reaction temperature
Being 165 DEG C, reaction pressure is that outside 0.3MPa, remaining is same as in Example 1.
After testing, calculating, in the present embodiment, vanadium comprehensive yield is 75.12%；The response rate of sodium is 64.98%.
Applicant states, the foregoing is only the detailed description of the invention of the present invention, but protection scope of the present invention
Being not limited thereto, person of ordinary skill in the field is it will be clearly understood that any skill belonging to the art
Art personnel in the technical scope that the invention discloses, the change that can readily occur in or replacement, all fall within the present invention
Protection domain and open within the scope of.
Claims (10)
1. the method that a cleaning containing vanadium raw materials produces vanadium product, it is characterised in that described method includes as follows
Step:
(1) containing vanadium raw materials through sodium roasting, post processing, obtain containing vanadium scavenging solution；
(2) vanadium scavenging solution and CO will be contained2Being 0.5-2.5MPa at pressure, temperature is anti-under the conditions of being 70-160 DEG C
Should, solid-liquid separation afterwards, obtain sodium carbonate and/or sodium bicarbonate crystal and containing vanadium solution, described sodium carbonate
And/or sodium bicarbonate crystal returns step (1), for the additive of sodium roasting；
(3) post-treated containing vanadium solution, obtain containing solution after the red cake of vanadium and precipitation, after precipitation, solution returns step
Suddenly (1) is for the solvent leached.
Method the most according to claim 1, it is characterised in that step (1) is described containing vanadium raw materials is
Containing vanadium mineral, preferably vanadium slag and/or bone coal.
Method the most according to claim 1 and 2, it is characterised in that step (1) described post processing
For water logging and remove impurity.
4. according to the method one of claim 1-3 Suo Shu, it is characterised in that step (1) is described containing vanadium
Scavenging solution is the solution containing vanadate, is preferably the solution containing vanadic acid sodium, more preferably former containing vanadium
The vanadium solution obtained after material sodium process for extracting vanadium remove impurity.
5. according to the method one of claim 1-4 Suo Shu, it is characterised in that step (1) is described containing vanadium
Concentration >=the 20g/L of scavenging solution vanadium, preferably 22-28g/L.
6. according to the method one of claim 1-5 Suo Shu, it is characterised in that step (2) described reaction
Temperature be 100-150 DEG C.
7. according to the method one of claim 1-6 Suo Shu, it is characterised in that step (2) described reaction
Pressure be 1.0-2.0MPa.
8. according to the method one of claim 1-6 Suo Shu, it is characterised in that step (2) described reaction
Time be 1-6h, preferably 1.5-6h.
9. according to the method one of claim 1-8 Suo Shu, it is characterised in that place after step (3) is described
Reason is: will contain vanadium solution and regulate pH value in a heated condition；
Preferably, the concentration≤0.6g/L of vanadium in solution after step (3) described precipitation.
10. according to the method one of claim 1-9 Suo Shu, it is characterised in that described method includes as follows
Step:
(1) containing vanadium raw materials through sodium roasting, water logging, remove impurity, obtain containing vanadium scavenging solution；
(2) vanadium scavenging solution and CO will be contained2It is 70-160 DEG C in temperature, under the conditions of pressure is 0.5-2.5MPa
Reaction 1-6h, obtains product；
(3) product is carried out solid-liquid separation, obtain sodium carbonate and/or sodium bicarbonate crystal and containing vanadium
Solution, sodium carbonate and/or sodium bicarbonate crystal return step (1) for the interpolation containing vanadium raw materials sodium roasting
Agent；
(4) after regulating pH value in a heated condition containing vanadium solution, solid-liquid separation, obtain containing the red cake of vanadium and sink
Solution after vanadium, after precipitation, solution returns step (1) for the solvent leached.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106346A (en) * | 2019-06-24 | 2019-08-09 | 攀钢集团研究院有限公司 | The method that Sodium Carbonate Leaching roasting clinker prepares vanadium oxide |
| CN110499425A (en) * | 2019-09-25 | 2019-11-26 | 河钢股份有限公司承德分公司 | A method of recycling vanadium and sodium from tailings |
| CN111235409A (en) * | 2020-03-09 | 2020-06-05 | 广西大学 | Method for extracting vanadium from vanadium-containing sodium carbonate leaching solution |
| CN115321737A (en) * | 2022-08-29 | 2022-11-11 | 新疆盛安新材料科技有限公司 | Method for treating sodium-containing wastewater in vanadium slag sodium modification vanadium extraction process |
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| CN111235409A (en) * | 2020-03-09 | 2020-06-05 | 广西大学 | Method for extracting vanadium from vanadium-containing sodium carbonate leaching solution |
| CN115321737A (en) * | 2022-08-29 | 2022-11-11 | 新疆盛安新材料科技有限公司 | Method for treating sodium-containing wastewater in vanadium slag sodium modification vanadium extraction process |
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