CN110438336A - A method of extracting vanadic anhydride from containing descloizite - Google Patents
A method of extracting vanadic anhydride from containing descloizite Download PDFInfo
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- CN110438336A CN110438336A CN201910845514.XA CN201910845514A CN110438336A CN 110438336 A CN110438336 A CN 110438336A CN 201910845514 A CN201910845514 A CN 201910845514A CN 110438336 A CN110438336 A CN 110438336A
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- descloizite
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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
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/20—Obtaining zinc otherwise than by distilling
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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
- 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
- C22B3/42—Treatment or purification of solutions, e.g. obtained by leaching by ion-exchange extraction
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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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- 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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- 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 method that this application discloses a kind of to extract vanadic anhydride from containing descloizite, first, descloizite is dried, levigate processing, backward mineral in be added sulfuric acid solution carry out acidic leaching, lead can be recycled in filter residue, then the leachate after oxidation processes is subjected to ion exchange, vanadium ion is adsorbed in resin after the completion of ion exchange；Resin after ion exchange is desorbed with sodium hydroxide solution, obtains the stripping liquid containing vanadium；After being finally evaporated concentration to obtained stripping liquid, it is 2.0-2.2 to carry out ammonium salt precipitation that ammonium salt is added in concentrate and adjusts pH, being separated by solid-liquid separation obtained filter residue is ammonium metavanadate solid, and liquid obtains vanadic anhydride after being calcined ammonium metavanadate solid for recycling zinc after precipitation.This method, can high efficiente callback lead and zinc can be separated containing the valuable metal vanadium in descloizite, while also, realize the comprehensive utilization of resource, it is with good economic efficiency, solve problem of environmental pollution.
Description
Technical field
This application involves Metallurgical resources technical field of comprehensive utilization, more particularly to it is a kind of from containing extracting five oxygen in descloizite
Change the method for two vanadium.
Background technique
Vanadium is a kind of single-crystal metal, is in silver gray.V2O5It is most important and most common vanadium chemical industry in barium oxide
Product.Vanadium is mainly used for metallurgical industry, and for producing steel alloy, tool steel or other ferrous alloys, V-alloyed steel has intensity height,
Toughness is big, and wearability waits well good characteristics, thus is widely used in machinery, shipbuilding, automobile, aviation, railway, road and bridge, electronics, state
The industries such as anti-；Another important applied field is the titanium-base alloy containing vanadium of Aeronautics and Astronautics；In other field then mainly as chemical industry
And the catalyst of oil field, there are also some other purposes, such as ceramic dyestuff, pigment, electronics, battery and superconductor.
Reserves of the vanadium in the earth's crust extremely disperse compared with horn of plenty, but existing for the nature, almost without the single mine of vanadium
Bed, mostly mineral intergrowth or grandidierite.Vanadium resource is present in vanadium titano-magnetite, bone coal, containing descloizite etc. more.It is normal containing descloizite
Production is formed in the oxidized zone of lead, the mineral ore of zinc and mineral deposit with secondary mineral, and two kinds of mineral are often alternately given birth in same crystal
It is long, so that the color or optical property of crystal are in band-like variation.Also with leather shell, featheriness aggregate and botryoidalis block output.
Higher, the utility value with higher containing vanadium grade in descloizite.Currently, mainly using sodium roasting and calcification baking method from
Vanadium is extracted in other substances, high production cost, environmental protection pressure are big, vanadium extraction comprehensive recovery is low, therefore, how from containing descloizite
Middle extraction vanadium is the major subjects studied at present.
It can be seen that how to realize from containing extracting vanadium in descloizite and reducing environmental pollution, vanadium recovery is improved
Problem is those skilled in the art's urgent problem to be solved.
Summary of the invention
The method that this application provides a kind of to extract vanadic anhydride from containing descloizite, solves in the prior art such as
What realizes the problem of from containing extracting vanadium in descloizite and reducing environmental pollution, improve vanadium recovery.
The side of vanadic anhydride is extracted in order to solve the above technical problems, this application provides a kind of from containing descloizite
Method, comprising:
Descloizite is dried, sulfuric acid solution progress acidic leaching is added after levigate processing, is carried out after leaching
Separation of solid and liquid obtains filtrate and filter residue, and sodium chlorate is added in the filtrate and is aoxidized, wherein contains lead in the filter residue；
Leachate after oxidation processes is subjected to ion exchange, vanadium ion is adsorbed on resin after the completion of ion exchange
In, the solution obtained after ion exchange is liquid after the absorption of lower vanadium ion concentration；
Resin after ion exchange is desorbed with sodium hydroxide solution, the stripping liquid containing vanadium is obtained, after the absorption
Liquid is for recycling zinc；
After being evaporated concentration to the obtained stripping liquid, it is 2.0-2.2 that ammonium salt is added in concentrate and adjusts pH
To carry out ammonium salt precipitation, the filter residue being separated by solid-liquid separation is ammonium metavanadate solid, and liquid is for recycling zinc after precipitation, by the inclined vanadium
Sour ammonium solid obtains vanadic anhydride after being calcined.
Preferably, the concentration of the sulfuric acid solution be 250g/L-350g/L, sulfuric acid solution described in leaching process with contain vanadium
The liquid-solid ratio of Pb-Zn deposits is (1.5-3) mL/g:1mL/g, and extraction temperature is 20 DEG C -30 DEG C, extraction time 180min-
240min。
Preferably, the content ratio of vanadium is (1-1.5) in the sodium chlorate additional amount and the filtrate: 1, oxidizing temperature is
50 DEG C -60 DEG C, oxidization time 30min-60min.
Preferably, the model D201 series of the resin；
Accordingly, the injection flow velocity of the leachate is 0.2mL/min-1mL/min, the leachate volume and the tree
The ratio of lipid amount is (2-5) mL/g:1mL/g.
Preferably, the concentration of the sodium hydroxide solution is 1.5mol/L-2.0mol/L, and dosage is 3ml/g-5ml/g tree
Rouge, injection flow velocity are 1.5mL/min-2.0mL/min.
Preferably, the ammonium salt is ammonium chloride or ammonium sulfate；
Accordingly, the ammonification coefficient of the ammonium salt precipitation is 1-1.5, and precipitation temperature is 90 DEG C -95 DEG C, the precipitation reaction time
For 120min-180min.
Preferably, the calcination temperature of the ammonium metavanadate solid is 500 DEG C -600 DEG C.
Compared with the prior art, a kind of method for extracting vanadic anhydride from containing descloizite provided herein,
Firstly, descloizite is dried, levigate processing, backward mineral in sulfuric acid solution be added carry out acidic leaching, leach knot
It is separated by solid-liquid separation to obtain filtrate and filter residue after beam, sodium chlorate is added in filtrate and is aoxidized, wherein contains lead in filter residue；
Then the leachate after oxidation processes being subjected to ion exchange, vanadium ion is adsorbed in resin after the completion of ion exchange, from
The solution obtained after son exchange is liquid after the absorption of lower vanadium ion concentration；By the resin sodium hydroxide solution after ion exchange
It is desorbed, obtains the stripping liquid containing vanadium, liquid is for recycling zinc after absorption；Concentration finally is evaporated to obtained stripping liquid
Afterwards, it is 2.0-2.2 to carry out ammonium salt precipitation that ammonium salt is added in concentrate and adjusts pH, and the filter residue being separated by solid-liquid separation is inclined vanadium
Sour ammonium solid, liquid obtains vanadic anhydride after being calcined ammonium metavanadate solid for recycling zinc after precipitation.It can be seen that
The extracting method, can be with high efficiente callback containing the valuable metal vanadium in descloizite, while can also separate lead and zinc, real
The comprehensive utilization of existing resource, it is with good economic efficiency, solve problem of environmental pollution.
Detailed description of the invention
For the clearer technical solution for illustrating the application, letter will be made to attached drawing needed in the embodiment below
The introduction wanted, it should be apparent that, it for those of ordinary skills, can be under the premise of not paying creativeness
It obtains other drawings based on these drawings.
Fig. 1 is a kind of method flow that vanadic anhydride is extracted from containing descloizite provided by the embodiment of the present invention
Figure；
Fig. 2 is a kind of schematic diagram that vanadic anhydride is extracted from containing descloizite provided by the embodiment of the present invention.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with attached drawing, it is right
Technical solution in the embodiment of the present application carries out clear and complete description.
The core of the application is to provide a kind of method that vanadic anhydride is extracted from containing descloizite, can solve existing
The problem of how being realized in technology from containing extracting vanadium in descloizite and reducing environmental pollution, improve vanadium recovery.
Fig. 1 is a kind of method flow that vanadic anhydride is extracted from containing descloizite provided by the embodiment of the present invention
Figure, Fig. 2 are a kind of schematic diagram that vanadic anhydride is extracted from containing descloizite provided by the embodiment of the present invention, such as Fig. 1 and
Shown in Fig. 2, comprising the following steps:
S101: descloizite is dried, sulfuric acid solution progress acidic leaching is added after levigate processing, after leaching
It is separated by solid-liquid separation to obtain filtrate and filter residue, sodium chlorate is added in filtrate and is aoxidized, wherein contains lead in filter residue.Containing vanadium
The specific ingredient of Pb-Zn deposits is as shown in table 1.
Table 1 is certain domestic real estate constituent analysis containing descloizite
Preferably, the concentration of sulfuric acid solution is 250g/L-350g/L, in leaching process sulfuric acid solution with containing descloizite
Liquid-solid ratio is (1.5-3) mL/g:1mL/g, and extraction temperature is 20 DEG C -30 DEG C, extraction time 180min-240min.Sodium chlorate
The content ratio of vanadium is (1-1.5) in additional amount and filtrate: 1, oxidizing temperature is 50 DEG C -60 DEG C, oxidization time 30min-
60min。
S102: the leachate after oxidation processes is subjected to ion exchange, vanadium ion is adsorbed on after the completion of ion exchange
In resin, the solution obtained after ion exchange is liquid after the absorption of lower vanadium ion concentration.
Preferably, the model D201 series of resin；Accordingly, the injection flow velocity of leachate is 0.2mL/min-1mL/
The ratio of min, leachate volume and the resin quality is (2-5) mL/g:1mL/g.
S103: the resin after ion exchange is desorbed with sodium hydroxide solution, the stripping liquid containing vanadium is obtained, after absorption
Liquid is for recycling zinc.
Preferably, the concentration of sodium hydroxide solution is 1.5mol/L-2.0mol/L, and dosage is 3ml/g-5ml/g resin, note
Entering flow velocity is 1.5mL/min-2.0mL/min.
S104: after being evaporated concentration to obtained stripping liquid, it is 2.0-2.2 that ammonium salt is added in concentrate and adjusts pH
To carry out ammonium salt precipitation, the filter residue being separated by solid-liquid separation is ammonium metavanadate solid, and liquid is for recycling zinc after precipitation, by ammonium metavanadate
Solid obtains vanadic anhydride after being calcined.
Preferably, ammonium salt is ammonium chloride or ammonium sulfate；Accordingly, the ammonification coefficient of ammonium salt precipitation is 1-1.5, precipitation temperature
It is 90 DEG C -95 DEG C, the precipitation reaction time is 120min-180min.The calcination temperature of ammonium metavanadate solid is 500 DEG C -600 DEG C.
Embodiment 1, a method of the vanadium extraction from containing descloizite, comprising the following specific steps
Step 1: will contain, descloizite (specific ingredient is as shown in table 1) dry, fine grinding, contain descloizite to after levigate
The middle sulfuric acid solution that 300g/L is added, liquid-solid ratio 1.7mL/g:1mL/g, extraction temperature is 20 DEG C, extraction time is
200min, speed of agitator carry out acidic leaching under conditions of being 300r/min, are filtered after the completion of leaching, obtain filter residue and filter
Liquid.Filter residue can be used for mentioning lead, and sodium chlorate is added in filtrate, and 60min, sodium chlorate additional amount and leaching are aoxidized under the conditions of 50 DEG C
Content of vanadium ratio in liquid is 1.3:1.
Step 2: D201 ion is handed over using the ratio 2mL/g:1mL/g of leachate volume and resin quality used as standard
It changes resin to be fitted into ion exchange column, the leachate that the first step obtains is injected into ion exchange column with the flow velocity of 0.2ml/min
Middle carry out ion exchange.Liquid is low vanadium solution after the absorption flowed out after sufficiently adsorbing.
Step 3: 1.5mol/L sodium hydroxide solution is injected in ion exchange column with the flow velocity of 1.5ml/min, to second
Resin after adsorbing in step is desorbed, and the usage amount of sodium hydroxide solution is 5ml/g resin, and outflow solution is the desorption containing vanadium
Liquid.
Step 4: after stripping liquid obtained in third step is evaporated concentration, adjust after concentrate pH is 2.0, according to adding
Ammonium coefficient is 1.0 addition ammonium sulfate, and ammonium salt precipitation is carried out under conditions of precipitation temperature is 92 DEG C, is cooled to after reacting 210min
Room temperature is separated by solid-liquid separation, and liquid after ammonium metavanadate solid and precipitation is obtained.
Step 5: ammonium metavanadate solid obtained in the 4th step is calcined at 550 DEG C, vanadic anhydride is obtained.
By the process flow, the rate of recovery of vanadium metal is 82.59%.
Embodiment 2, the method for vanadium extraction from containing descloizite, comprising the following specific steps
Step 1: will contain first, descloizite (specific ingredient is as shown in table 1) dry, fine grinding, to the lead containing vanadium after levigate
The sulfuric acid solution of 250g/L, liquid-solid ratio 2mL/g:1mL/g, extraction temperature is 20 DEG C, extraction time is are added in zinc ore
180min, speed of agitator carry out acidic leaching under conditions of being 300r/min, are filtered after the completion of leaching, obtain filter residue and filter
Liquid.Filter residue can be used for mentioning lead, and sodium chlorate is added in filtrate, and 50min, sodium chlorate additional amount and leaching are aoxidized under the conditions of 60 DEG C
Content of vanadium ratio in liquid is 1:1.
Step 2: D201 ion is handed over using the ratio 3mL/g:1mL/g of leachate volume and resin quality used as standard
It changes resin to be fitted into ion exchange column, the leachate that the first step obtains is injected into ion exchange column with the flow velocity of 0.6ml/min
Middle carry out ion exchange.Liquid is low vanadium solution after the absorption flowed out after sufficiently adsorbing.
Step 3: 1.7mol/L sodium hydroxide solution is injected in ion exchange column with the flow velocity of 1.5ml/min, to second
Resin after adsorbing in step is desorbed, and the usage amount of sodium hydroxide solution is 5ml/g resin, and outflow solution is the desorption containing vanadium
Liquid.
Step 4: after stripping liquid obtained in step third step is evaporated concentration, after adjusting concentrate pH is 2.2,
According to adding ammonium coefficient to be 1.3 addition ammonium sulfate, ammonium salt precipitation is carried out under the conditions of precipitation is at a temperature of 90 °C, after reacting 180min
It is cooled to room temperature and is separated by solid-liquid separation, obtain liquid after the precipitation of ammonium metavanadate solid and low vanadium.
Step 2: ammonium metavanadate solid obtained in the 4th step is calcined at 600 DEG C, vanadic anhydride is obtained.
By the process flow, the rate of recovery of vanadium metal is 84.46%.
Embodiment 3, a method of the vanadium extraction from containing descloizite comprising step in detail below:
Step 1: will contain, descloizite (specific ingredient is as shown in table 1) dry, fine grinding, contain descloizite to after levigate
The sulfuric acid solution of 350g/L is added, liquid-solid ratio 2.5:1mL/g is 20 DEG C, extraction time 240min, stirs in extraction temperature
Revolving speed carries out acidic leaching under conditions of being 300r/min, is filtered after the completion of leaching, obtains filter residue and filtrate.Filter residue is available
In mentioning lead, sodium chlorate is added in filtrate, 30min is aoxidized under the conditions of 60 DEG C, sodium chlorate additional amount contains with the vanadium in leachate
Amount ratio is 1.5:1.
Step 2: D201 ion is handed over using the ratio 5mL/g:1mL/g of leachate volume and resin quality used as standard
It changes resin to be fitted into ion exchange column, the leachate that the first step obtains is injected into ion exchange column with the flow velocity of 1ml/min
Carry out ion exchange.Liquid is low vanadium solution after the absorption flowed out after sufficiently adsorbing.
Step 3: 1.6mol/L sodium hydroxide solution is injected in ion exchange column with the flow velocity of 1.7ml/min, to second
Resin after adsorbing in step is desorbed, and the usage amount of sodium hydroxide solution is 4ml/g resin, and outflow solution is the desorption containing vanadium
Liquid.
Step 4: after stripping liquid obtained in third step is evaporated concentration, after adjusting concentrate pH is 2.1, according to
Adding ammonium coefficient is 1.5 addition ammonium sulfate, and ammonium salt precipitation is carried out under the conditions of precipitation is at a temperature of 90 °C, reacts cooling after 150min
It is separated by solid-liquid separation to room temperature, obtains liquid after the precipitation of ammonium metavanadate solid and low vanadium.
Step 5: ammonium metavanadate solid obtained in the 4th step is calcined at 540 DEG C, vanadic anhydride is obtained.
By the process flow, the rate of recovery of vanadium metal is 83.95%.
A kind of method for extracting vanadic anhydride from containing descloizite provided herein, firstly, to descloizite
Be dried, levigate processing, backward mineral in be added sulfuric acid solution carry out acidic leaching, be separated by solid-liquid separation after leaching
Filtrate and filter residue are obtained, sodium chlorate is added in filtrate and is aoxidized, wherein contains lead in filter residue；Then at will be through peroxidating
Leachate after reason carries out ion exchange, and vanadium ion is adsorbed in resin after the completion of ion exchange, and what is obtained after ion exchange is molten
Liquid is liquid after the absorption of lower vanadium ion concentration；Resin after ion exchange is desorbed with sodium hydroxide solution, is contained
The stripping liquid of vanadium, liquid is for recycling zinc after absorption；After being finally evaporated concentration to obtained stripping liquid, it is added in concentrate
Ammonium salt and adjust pH be 2.0-2.2 to carry out ammonium salt precipitation, the filter residue being separated by solid-liquid separation be ammonium metavanadate solid, liquid after precipitation
For recycling zinc, vanadic anhydride is obtained after ammonium metavanadate solid is calcined.It can be seen that the extracting method, Ke Yigao
Effect recycling can also separate lead and zinc containing the valuable metal vanadium in descloizite, realize the comprehensive utilization of resource,
It is with good economic efficiency, solve problem of environmental pollution.
Those skilled in the art will readily occur to its of the application after considering specification and practicing application disclosed herein
His embodiment.This application is intended to cover any variations, uses, or adaptations of the application, these modifications, purposes or
Person's adaptive change follow the general principle of the application and include common knowledge in the art disclosed in the present application or
Conventional techniques.Description and embodiments are considered only as exemplary, and the true scope of the application is pointed out by claim.
It should be understood that the application is not limited to the precise structure that has been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.Above-described the application embodiment is not constituted to this Shen
Please protection scope restriction.
Claims (7)
1. a kind of method for extracting vanadic anhydride from containing descloizite characterized by comprising
Descloizite is dried, sulfuric acid solution progress acidic leaching is added after levigate processing, carries out solid-liquid after leaching
Isolated filtrate and filter residue are added sodium chlorate in the filtrate and are aoxidized, wherein contain lead in the filter residue；
Leachate after oxidation processes is subjected to ion exchange, vanadium ion is adsorbed in resin after the completion of ion exchange, from
The solution obtained after son exchange is liquid after the absorption of lower vanadium ion concentration；
Resin after ion exchange is desorbed with sodium hydroxide solution, obtains the stripping liquid containing vanadium, liquid is used after the absorption
In recycling zinc；
After being evaporated concentration to the obtained stripping liquid, in concentrate be added ammonium salt and adjust pH be 2.0-2.2 with into
Row ammonium salt precipitation, the filter residue being separated by solid-liquid separation are ammonium metavanadate solid, and liquid is for recycling zinc after precipitation, by the ammonium metavanadate
Solid obtains vanadic anhydride after being calcined.
2. the method according to claim 1 for extracting vanadic anhydride from containing descloizite, which is characterized in that the sulphur
The concentration of acid solution is 250g/L-350g/L, and sulfuric acid solution described in leaching process and the liquid-solid ratio containing descloizite are (1.5-
3) mL/g:1mL/g, extraction temperature are 20 DEG C -30 DEG C, extraction time 180min-240min.
3. the method according to claim 1 for extracting vanadic anhydride from containing descloizite, which is characterized in that the chlorine
The content ratio of vanadium is (1-1.5) in sour sodium additional amount and the filtrate: 1, oxidizing temperature is 50 DEG C -60 DEG C, and oxidization time is
30min-60min。
4. the method according to claim 1 for extracting vanadic anhydride from containing descloizite, which is characterized in that the tree
The model D201 series of rouge；
Accordingly, the injection flow velocity of the leachate is 0.2mL/min-1mL/min, the leachate volume and the resinite
The ratio of amount is (2-5) mL/g:1mL/g.
5. the method according to claim 1 for extracting vanadic anhydride from containing descloizite, which is characterized in that the hydrogen
The concentration of sodium hydroxide solution is 1.5mol/L-2.0mol/L, and dosage is 3ml/g-5ml/g resin, and injection flow velocity is 1.5mL/
min-2.0mL/min。
6. the method according to claim 1 for extracting vanadic anhydride from containing descloizite, which is characterized in that the ammonium
Salt is ammonium chloride or ammonium sulfate；
Accordingly, the ammonification coefficient of the ammonium salt precipitation is 1-1.5, and precipitation temperature is 90 DEG C -95 DEG C, and the precipitation reaction time is
120min-180min。
7. the method according to claim 6 for extracting vanadic anhydride from containing descloizite, which is characterized in that described inclined
The calcination temperature of ammonium vanadate solid is 500 DEG C -600 DEG C.
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Cited By (4)
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| CN111470534A (en) * | 2020-05-20 | 2020-07-31 | 胡琳 | Preparation process of vanadium pentoxide |
| CN113621833A (en) * | 2021-08-12 | 2021-11-09 | 长江师范学院 | Method for recovering vanadium from aqueous solution |
| CN114507778A (en) * | 2022-03-18 | 2022-05-17 | 郑州轻工业大学 | Comprehensive utilization method of vanadium slag in metal gallium production process |
| CN115109951A (en) * | 2022-06-28 | 2022-09-27 | 郑州轻工业大学 | Comprehensive utilization method for sulfuric acid desorption gallium-containing liquid in alumina production |
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| CN101182596A (en) * | 2007-12-03 | 2008-05-21 | 杨秋良 | Method for extracting vanadic anhydride from stone coal vanadium ore |
| CN101708864A (en) * | 2009-12-18 | 2010-05-19 | 中国铝业股份有限公司 | Method for extracting vanadium pentoxide in Bayer-process seed-separating mother liquor |
| CN102337409A (en) * | 2011-10-19 | 2012-02-01 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for recovering vanadium from dephosphorization bottom flow residues |
| CN105950877A (en) * | 2016-05-27 | 2016-09-21 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for recovering vanadium in impurity removing slag by using vanadium precipitation waste water |
| CN108862382A (en) * | 2018-08-10 | 2018-11-23 | 南阳汉鼎高新材料有限公司 | A method of extracting high purity vanadic anhydride from lead navajoite |
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| CN111470534A (en) * | 2020-05-20 | 2020-07-31 | 胡琳 | Preparation process of vanadium pentoxide |
| CN113621833A (en) * | 2021-08-12 | 2021-11-09 | 长江师范学院 | Method for recovering vanadium from aqueous solution |
| CN114507778A (en) * | 2022-03-18 | 2022-05-17 | 郑州轻工业大学 | Comprehensive utilization method of vanadium slag in metal gallium production process |
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