CN102399976B - Roasting pretreatment process for extracting vanadium pentoxide from high-carbon scherbinaite-containing coal mine and vanadium pentoxide extracting method - Google Patents
Roasting pretreatment process for extracting vanadium pentoxide from high-carbon scherbinaite-containing coal mine and vanadium pentoxide extracting method Download PDFInfo
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Abstract
The invention discloses a roasting pretreatment process for extracting vanadium pentoxide from a high-carbon scherbinaite-containing coal mine and a vanadium pentoxide extracting method, which comprise the following steps that: the stone coal scherbinaite is used as raw materials, the raw materials are crushed and pressed into blocks and are dried, then, the materials are continuously put into a tunnel kiln capable of regulating the air volume and the pushing speed to be roasted, the temperature is controlled between 400 DEG C and 1000 DEG C in the roasting process, the roasting time lasts 7h to 40h, and the pretreatment process is completed after the roasting. The roasting products are crushed, and then, vanadium pentoxide products are obtained sequentially through leaching, neutralization, oxidization, impurity removal, enrichment, ammonium salt vanadium deposition and calcination. The process has the advantages that the application range is wide, the energy consumption is low, the heat value utilization is sufficient, the equipment investment is low, the environment pollution is little, and the like. The method is suitable for being applied to the vanadium pentoxide extraction from the high-carbon scherbinaite-containing coal mine.
Description
Technical field
The invention belongs to the rare metal technical field of smelting, be specifically related to extract in a kind of bone coal ore deposit pretreatment technology and the extracting method of Vanadium Pentoxide in FLAKES.
Background technology
Bone coal is a kind of matrix corrosion hard coal that is present in Sinian, Cambrian system, the ancient stratum of Silurian; it is by behind the inferior grade biological deaths such as mushroom; form under the reductive condition of shallow sea, its principal feature is that ore density is big, compact structure, thermal value are low, be difficult to perfect combustion.The grade of bone coal vanadium and carbon content change greatly, general V
2O
5Content 0.13%～1.2%, contain the high rich ore V of vanadium
2O
5Content can reach more than 2%; Carbon content is 2%～20%.Vanadium is a kind of important strategic physical resources, and important purposes is arranged, and the vanadium more than 80% is applied in steel industry, for the manufacture of the special steel grade of various uses.Containing the vanadium grade reaches bone coal more than 0.8% and can be used as and have the vanadium extraction raw material that the economic exploitation is worth.China's bone coal aboundresources, bone coal as important vanadium extraction raw material.
The extractive technique of vanadium mainly can be divided into full wet method extractive technique and roasting leaching-out technique two big classes in the bone coal, the acid of full Wet technique consumption is high, also might need special equipment and process matching, and the bone coal ore deposit there is certain selectivity, as constant-pressure and high-temperature peracid lixiviation process, and need add an amount of leaching agent, pressurized acid leaching method etc.The method of roasting mainly is the carbon in the bone coal to be burnt remove, and to carrying out oxidation in the oxidizing atmosphere of wherein contained trivalent vanadium after removing carbon, make it be converted into tetravalence or the pentavalent vanadium that is soluble in the diluted acid, containing the vanadium material and can under lower sulfuric acid consumption, leach wherein vanadium after the roasting; The key of roasting leaching-out technique is roasting, should burn and remove carbon, make the vanadium oxidation conversion complete, can not cause bone coal ore deposit sintering because temperature of combustion is out of control again, and then cause after the roasting vanadium in the material can not soak or leaching yield not high, therefore, roasting method is the key of effectively extracting vanadium in the bone coal in the roasting leaching-out technique.
According to the difference of roasting apparatus, roasting method mainly comprises following four kinds of technological operations:
1. sodium roasting method: be the salt roasting method again, be the most ancient a kind of bone coal roasting method and vanadium extraction technology, it adopts flat kiln is the equipment of roasting decarburization and vanadium oxidation, be roasting additive with salt, roasting time reaches more than the 12h, 800～850 ℃ of maturing temperatures, roasting energy consumption height, and emit a large amount of Cl
2, toxic gas such as HCl, the severe contamination surrounding enviroment; Go out vanadium in the roasting material with water logging after the roasting, vanadium leaching yield only about 60%, ultimate yield is about 45%, this method has only been extracted the vanadium in the bone coal roughly, to the carbon in the bone coal, potassium, aluminium, silicon etc. other etc. resource do not give consideration fully, three-waste pollution is serious, this method is prohibited by country.
2. boiling furnace combustion decarburization, rotary kiln baking method: utilize the calorific value in the bone coal, in the decarburization of fluidizing furnace internal combustion, the oxidizing roasting when the rotary kiln soak of slag after the decarburization, leach with dilute sulphuric acid again and extract vanadium, because the fluctuation of the carbon content in the bone coal is big, calorific value changes greatly, be difficult to stable burning, must reach higher calorific value just might decarburization in fluidizing furnace, and because the time of carbon rejection process in stove is shorter, low price vanadium in the bone coal also not oxidation put in place, stone coal slag after the decarburization also needs to carry out oxidizing roasting 2～3h about 900 ℃ in rotary kiln etc. can carry out the equipment of high-temperature roasting, could obtain vanadium leaching yield preferably, because complex technical process, the matching of equipment and technology does not obtain result preferably yet at present.
3. circulating fluidized bed combustion decarburization, the acid-leaching vanadium-extracted method of slag: this is owned by France in the electrical integrated engineering of vanadium, the generating of circulating fluidized bed combustion carbon heating water generates steam, lime-ash vanadium extraction.The circulating fluidized bed combustion decarburization is comparative maturity, the general requirement calorific value is more than 1000kcal/kg, therefore also need with addition of the high coal of some calorific values, lime-ash after the burning needs further high temperature oxidation roasting equally, could extract vanadium wherein preferably, new some bone coals of building generate electricity---and the vanadium extraction project all tends to adopt this technical process basically.
4. rotary kiln decarburization roasting, the diluted acid lixiviation process: this method adopts rotary kiln as the decarburization of carbon containing bone coal, oxidizing roasting equipment, bone coal is broken into powdery, or add continuously from the kiln tail after making the bead drying, from about kiln hood Coal powder spray burning or metabolic water coal gas heating bone coal ore deposit to 900 ℃, decarburization and oxidizing roasting are finished in an equipment, because thermal conduction and the atmospheric oxidation mass transfer of storeroom are subjected to the performance impact of material bed thickness and material self big in the rotary kiln, the high temperature decarbonization rate of rotary kiln is undesirable, processing power is low, and since the thermal technology to control difficulty big, be difficult to control speed and the final effect of decarburization and roasting, the material sintering appears easily, knot kiln etc., cause roasting material vanadium leaching yield low, particularly for high carbon containing bone coal resource, same kiln realizes that the technical difficulty of decarburization and oxidizing roasting is bigger.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provide a kind of applied widely, energy consumption is low, the calorific value utilization fully, equipment less investment, high-carbon low in the pollution of the environment and that be suitable for industrial applications contain the roasting pretreatment technology that extracts Vanadium Pentoxide in FLAKES in the scherbinaite colliery and the method for extracting Vanadium Pentoxide in FLAKES.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is that a kind of high-carbon (refer generally to carbon containing and be higher than 10%) contains the roasting pretreatment technology that extracts Vanadium Pentoxide in FLAKES in the scherbinaite colliery, may further comprise the steps: be raw material with the bone coal navajoite, after the fragmentation of raw material process, briquetting, the oven dry, put into continuously in the tunnel furnace of quantity-adjustable and fltting speed and carry out roasting, temperature control is at 400～1000 ℃ in the roasting process, and roasting time continues 7～40h, namely finishes pretreatment technology after the roasting.
In the above-mentioned roasting pretreatment technology, preferred, described roasting comprises burning decarburization and two steps of oxidizing roasting successively.As further optimization, the temperature of tunnel furnace is preferably controlled at 400～700 ℃ (more preferably 450～550 ℃) in the described burning decarbonation process, and the time of burning decarburization preferably continues 5～22h.The temperature of tunnel furnace is preferably controlled at 800～1000 ℃ (more preferably 820～880 ℃) in the described oxidizing roasting step, and the time of oxidizing roasting preferably continues 2～15h.
In the above-mentioned roasting pretreatment technology, according to the characteristic of bone coal navajoite, can add lime or compound as the additive of roasting process, also can not add any medicament and carry out roasting (claiming saltless roasting again).
In the above-mentioned roasting pretreatment technology, described fragmentation preferably refers to described raw material crushing, levigately accounts for more than 80% or about 80% to-20～-200 orders.After broken step, before the briquetting step, described broken back breeze preferably adds water and reaches 6%～10% with wheel roller mixing to water content.Pressure during described briquetting is preferably controlled at 80～200 kgf/cm
2
Above-mentioned roasting pretreatment technology contains the scherbinaite colliery and can both be suitable for different carbon content, and the carbon content in the bone coal also can be 0, is bone coal weathered ore or siliceous navajoite (as containing vanadium bauxite).But be applicable to that preferably carbon content is containing the scherbinaite colliery more than 10%.Roasting pretreatment technology by the invention described above can make two processes of burning decarburization and oxidizing roasting (contained trivalent, tetravalence vanadium roasting oxidation becomes the pentavalent vanadium in the bone coal) finish in an equipment, carbon-drop rate can reach 95%～99%, and the vanadium conversion rate of oxidation can reach 95%～99%.The roasting pretreatment technology of the invention described above, it is by adopting a kind of mechanization degree height, the neat tunnel furnace equipment of control device, can handle the bone coal ore deposit through fragmentation, briquetting, sign indicating number heap continuously, by thermal equilibrium and system pressure (relevant processing parameter please fully discloses) in the control kiln, reach the temperature required and decarbonization rate of control decarburization, control oxidizing roasting temperature, low price vanadium oxidation rate and atmosphere etc. realize continuous decarburization and oxidizing roasting to high carbon containing bone coal resource.
As a total technical conceive, the present invention also provides a kind of high-carbon to contain the method for extracting Vanadium Pentoxide in FLAKES in the scherbinaite colliery, may further comprise the steps: the product of roasting that makes after above-mentioned roasting pretreatment technology is finished is pulverized, then successively through leach, neutralization is adjusted to that pH value is 1.5～2, oxidation, removal of impurities, enrichment, ammonium salt precipitation and calcine after, obtain the Vanadium Pentoxide in FLAKES product.
Above-mentioned high-carbon contains the method for extracting Vanadium Pentoxide in FLAKES in the scherbinaite colliery, in the described leaching step, the leaching agent of selecting for use can be low sour leaching agent in various, be preferably concentration at the sulphuric acid soln of 10～100g/L, liquid-solid ratio during leaching is preferably controlled in (1～2): 1, and adopt the vanadium leaching yield of this leaching agent can reach 70%～93% substantially.In the described neutralization procedure, generally select for use alkaline matter as neutralizing agent, preferred neutralizing agent comprises yellow soda ash.
Above-mentioned high-carbon contains the method for extracting Vanadium Pentoxide in FLAKES in the scherbinaite colliery, in the described oxidation step, the oxygenant of selecting for use is preferably sodium chlorate, hydrogen peroxide or potassium permanganate, the addition of described oxygenant is preferably 15%～25% of neutralization back leach liquor middle or low price vanadium quality, and the main effect of oxidation is the low price vanadium in the leach liquor all is oxidized to the pentavalent vanadium.
Above-mentioned high-carbon contains the method for extracting Vanadium Pentoxide in FLAKES in the scherbinaite colliery, in the described removal step, the cleaner preferred package of selecting for use contains magnesium chloride, the addition of described cleaner is preferably after the oxidation in the solution 1.0～1.5 times of impurity silicon, phosphorus total mass, and the main effect of removal of impurities is to remove the impurity such as silicon, aluminium and phosphorus in the solution.
Above-mentioned high-carbon contains the method for extracting Vanadium Pentoxide in FLAKES in the scherbinaite colliery, and the lower concentration vanadium solution enrichment of gained became high vanadium concentrations solution after described enriching step preferably referred to adopt resin absorption-alkaline hydrolysis absorbing method or adopts the extracting-back extraction access method with removal of impurities; Described lower concentration vanadium solution refers to that generally the concentration of Vanadium Pentoxide in FLAKES in the solution is 2～6g/L, and described high vanadium concentrations solution refers to that generally the concentration of Vanadium Pentoxide in FLAKES in the solution is 20～110g/L.
Above-mentioned high-carbon contains the method for extracting Vanadium Pentoxide in FLAKES in the scherbinaite colliery, and in the described ammonium salt precipitation step, the ammonium salt of selecting for use is preferably ammonium chloride or ammoniacal liquor, and the throw out that generates after described ammonium salt precipitation step is finished is preferably ammonium meta-vanadate or poly vanadate throw out.
Above-mentioned high-carbon contains the method for extracting Vanadium Pentoxide in FLAKES in the scherbinaite colliery, and in the described calcining step, calcining temperature is preferably 450～600 ℃, and calcination time is preferably 2～4h.
Compared with prior art, the invention has the advantages that:
1. the present invention is by adopting tunnel furnace as high-carbon being contained the burn integrated roasting apparatus of decarburization, oxidizing roasting of scherbinaite colliery, can not only handle the high-carbon that other roasting apparatuss are difficult to effectively handle and contain the scherbinaite colliery, and burning decarburization and the oxidizing roasting of the bone coal navajoite of other different carbon content all had tangible technique effect, this makes roasting of the present invention and extracting method have the wider scope of application;
2. by adopting roasting method of the present invention and technology can effectively reduce investment to bone coal navajoite torrefaction equipment, reduce the processing unit working cost, reduce hear rate and the energy consumption of technology, baking flue gas focuses on discharging after UTILIZATION OF VESIDUAL HEAT IN, free from environmental pollution; Bone coal navajoite for different carbon content carries out industrialization on a large scale, industrialization utilization, also has good suitability;
3. the material after sinter process roasting of the present invention, can improve the leaching yield of vanadium after levigate greatly, and by cooperating the extracting method of Vanadium Pentoxide in FLAKES of the present invention, can improve leaching yield, transformation efficiency and the rate of recovery of vanadium in the bone coal ore deposit greatly, for efficient, low pollution, cleaning reclaim vanadium resource and created condition, has extraordinary popularizing application prospect in the extracting vanadium from stone coal industry.
Embodiment
Below in conjunction with the specification sheets specific embodiment the present invention is further described.
Embodiment 1:
The high carbon containing bone coal navajoite in somewhere, northwest, the raw ore chemical ingredients mainly comprises C 20.25%, SiO
255.67%, Al
2O
39.92%, V
2O
50.757%, P 1.35% and Fe 7.56% adopt technology of the present invention that this high carbon containing bone coal navajoite is handled, and specifically may further comprise the steps:
1. roasting pre-treatment
With the high carbon containing bone coal navajoite of present embodiment earlier broken (can adopt comprise that jaw is broken, the various operations of pair roller, ball milling, pulverizing etc.) to-100 orders account for about 80%, add the water of an amount of (water content reaches 8%) again through mixer (wheel roller) height mixing, again by press at 120kgf/cm
2Continuous pressing block under the pressure, the bone coal piece that suppresses is piled up into the piled bricks of certain altitude by suitable spacing sign indicating number by machinery, and puts into drying in the dry kiln continuously, sends into continuously after the drying again and carries out roasting in the tunnel furnace; Roasting process comprises burning decarburization and two steps of oxidizing roasting successively, lights six coal gas burners, and the air flow quantity that blasts is 80000Nm
3/ h, the temperature of control burning decarburization is at 550 ℃, and decarburization time continues 12h, and oxidizing roasting 11h under 850 ℃ of temperature again makes that the trivalent vanadium oxidation conversion in the bone coal is the pentavalent vanadium after the decarburization, obtains product of roasting after the cooling.After the pre-treatment of this step, carbon-drop rate can reach 96%, and by measuring the quality of high price vanadium, the vanadium conversion rate of oxidation can reach 97%.
2. extraction Vanadium Pentoxide in FLAKES
With the product of roasting that makes after the step 1 pulverize again, levigate, then with the 60g/L sulphuric acid soln as leaching agent, carry out mechanical stirring at 2: 1 by liquid-solid ratio and leach 1.5h, leaching yield has reached 92.05%; Again with yellow soda ash as neutralizing agent, add neutralizing agent in the leach liquor after leaching to sulfuric acid and carry out acidity to be adjusted to the pH value be 1.8; Add oxygenant (for example sodium chlorate, hydrogen peroxide or potassium permanganate) then, the addition of oxygenant is 16% of neutralization back leach liquor middle or low price vanadium quality, by oxygenant with the low price vanadium in the solution fully be oxidized to the high price vanadium after, add cleaner magnesium chloride etc. again, the addition of cleaner is after the oxidation in the solution 1.3 times of impurity silicon, phosphorus total mass, to remove impurity such as silicon, aluminium and phosphorus, obtain containing the solution of Vanadium Pentoxide in FLAKES 4.6g/L after the removal of impurities.This contains Vanadium Pentoxide in FLAKES 4.6g/L vanadium solution after D301 resin (wash rice river add lustre to resin processing plant produce) absorption, NaOH solution with 100g/L carries out the vanadium solution that alkaline hydrolysis suction enrichment becomes to contain Vanadium Pentoxide in FLAKES 48g/L again, add ammonium chloride (or ammoniacal liquor) at last, make the vanadium in the solution generate the ammonium meta-vanadate throw out, ammonium meta-vanadate is calcined through washing, drying again, calcining temperature is 550 ℃, and calcination time is 2h, gets the product Vanadium Pentoxide in FLAKES after the calcining.
Embodiment 2:
The high carbon containing bone coal navajoite in somewhere, Hunan, the raw ore chemical ingredients comprises C 12.65%, SiO
271.28%, Al
2O
37.35%, V
2O
50.92%, P 0.35% and Fe 1.39% adopt technology of the present invention that this high carbon containing bone coal navajoite is handled, and specifically may further comprise the steps:
1. roasting pre-treatment
With the high carbon containing bone coal navajoite of present embodiment earlier broken (can adopt comprise that jaw is broken, the various operations of pair roller, ball milling, pulverizing etc.) to-100 orders account for about 80%, add an amount of water again and reach 10% through mixer (wheel roller) height mixing to water content, again by press at 160kgf/cm
2Continuous pressing block under the pressure, the bone coal piece that suppresses is piled up into the piled bricks of certain altitude by suitable spacing sign indicating number by machinery, and puts into drying in the dry kiln continuously, sends into continuously after the drying again and carries out roasting in the tunnel furnace; Roasting process comprises burning decarburization and two steps of oxidizing roasting successively, and the air flow quantity that light ten coal gas burners, blasts is 90000Nm
3/ h, the temperature of control burning decarburization is at 600 ℃, and decarburization time continues 8h, and oxidizing roasting 8h under 880 ℃ of temperature again makes that the trivalent vanadium oxidation conversion in the bone coal is the pentavalent vanadium after the decarburization, obtains product of roasting after the cooling.After the pre-treatment of this step, carbon-drop rate can reach 97%, and by measuring the quality of high price vanadium, the vanadium conversion rate of oxidation can reach 98%.
2. extraction Vanadium Pentoxide in FLAKES
With the product of roasting that makes after the step 1 pulverize again, levigate, then with the sulphuric acid soln of 80g/L as leaching agent, carry out mechanical stirring at 2: 1 by liquid-solid ratio and leach 1.5h, leaching yield has reached 94.00%; Again with yellow soda ash as neutralizing agent, add neutralizing agent in the leach liquor after leaching to sulfuric acid and carry out acidity to be adjusted to the pH value be 1.8; Add oxygenant (for example sodium chlorate, hydrogen peroxide or potassium permanganate) then, the addition of oxygenant is 20% of neutralization back leach liquor middle or low price vanadium quality, by oxygenant with the low price vanadium in the solution fully be oxidized to the high price vanadium after, add cleaner magnesium chloride etc. again, the addition of cleaner is after the oxidation in the solution 1.5 times of impurity silicon, phosphorus total mass, to remove impurity such as silicon, aluminium and phosphorus, obtain containing the solution of Vanadium Pentoxide in FLAKES 4.8g/L after the removal of impurities.This contains Vanadium Pentoxide in FLAKES 4.8g/L vanadium solution after D301 resin (Zhejiang add lustre to resin processing plant produce) absorption, carrying out alkaline hydrolysis with the NaOH solution of 120g/L again inhales enrichment and becomes to contain Vanadium Pentoxide in FLAKES 55g/L vanadium solution, add ammonium chloride (or ammoniacal liquor) at last, make the vanadium in the solution generate the ammonium meta-vanadate throw out, ammonium meta-vanadate is calcined through washing, drying again, calcining temperature is 520 ℃, and calcination time is 2.5h, gets the product Vanadium Pentoxide in FLAKES after the calcining.
Claims (8)
1. a high-carbon contains the roasting pretreatment technology that extracts Vanadium Pentoxide in FLAKES in the scherbinaite colliery, may further comprise the steps: containing the scherbinaite colliery with high-carbon is raw material, the carbon content that described high-carbon contains the scherbinaite colliery is higher than 10%, after the fragmentation of raw material process, briquetting, the oven dry, put into continuously in the tunnel furnace of quantity-adjustable and fltting speed and carry out roasting, temperature control is at 400～1000 ℃ in the roasting process, and roasting time continues 7～40h, namely finishes pretreatment technology after the roasting;
Described roasting comprises burning decarburization and two steps of oxidizing roasting successively; The temperature of tunnel furnace is controlled at 400～700 ℃ in the described burning decarbonation process, the time remaining 5～22h of burning decarburization; The temperature of tunnel furnace is controlled at 800～1000 ℃ in the described oxidizing roasting step, the time remaining 2～15h of oxidizing roasting;
Described fragmentation refers to described raw material crushing, levigate extremely-20 orders are accounted for more than 80%; Described broken back breeze adds and carries out described briquetting again after water reaches 6%～10% with wheel roller mixing to water content, and the pressure-controlling during described briquetting is at 80～200 kgf/cm
2
2. a high-carbon contains the method for extracting Vanadium Pentoxide in FLAKES in the scherbinaite colliery, may further comprise the steps: the product of roasting that makes after the described roasting pretreatment technology of claim 1 is finished is pulverized, then successively through leach, neutralization is adjusted to that pH value is 1.5～2, oxidation, removal of impurities, enrichment, ammonium salt precipitation and calcine after, obtain the Vanadium Pentoxide in FLAKES product.
3. high-carbon according to claim 2 contains in the scherbinaite colliery method of extracting Vanadium Pentoxide in FLAKES, it is characterized in that, in the described leaching step, the leaching agent of selecting for use be concentration at the sulphuric acid soln of 10～100g/L, the liquid-solid ratio control during leaching is in (1～2): 1; In the described neutralization procedure, the neutralizing agent of selecting for use comprises yellow soda ash.
4. high-carbon according to claim 2 contains the method for extracting Vanadium Pentoxide in FLAKES in the scherbinaite colliery, it is characterized in that, in the described oxidation step, the oxygenant of selecting for use is sodium chlorate, hydrogen peroxide or potassium permanganate, and the addition of described oxygenant is 15%～25% of neutralization back leach liquor middle or low price vanadium quality.
5. high-carbon according to claim 2 contains the method for extracting Vanadium Pentoxide in FLAKES in the scherbinaite colliery, it is characterized in that, in the described removal step, the cleaner of selecting for use comprises magnesium chloride, and the addition of described cleaner is after the oxidation in the solution 1.0～1.5 times of impurity silicon, phosphorus total mass.
6. high-carbon according to claim 2 contains the method for extracting Vanadium Pentoxide in FLAKES in the scherbinaite colliery, it is characterized in that the lower concentration vanadium solution enrichment of gained became high vanadium concentrations solution after described enriching step referred to adopt resin absorption-alkaline hydrolysis absorbing method or adopts the extracting-back extraction access method with removal of impurities; Described lower concentration vanadium solution refers to that the concentration of Vanadium Pentoxide in FLAKES in the solution is 2～6g/L, and described high vanadium concentrations solution refers to that the concentration of Vanadium Pentoxide in FLAKES in the solution is 20～110g/L.
7. high-carbon according to claim 2 contains the method for extracting Vanadium Pentoxide in FLAKES in the scherbinaite colliery, it is characterized in that, in the described ammonium salt precipitation step, the ammonium salt of selecting for use is ammonium chloride or ammoniacal liquor, and the throw out that generates after described ammonium salt precipitation step is finished is ammonium meta-vanadate or poly vanadate throw out.
8. high-carbon according to claim 2 contains the method for extracting Vanadium Pentoxide in FLAKES in the scherbinaite colliery, it is characterized in that in the described calcining step, calcining temperature is 450～600 ℃, and calcination time is 2～4h.
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| CN102732739B (en) * | 2012-06-08 | 2013-09-18 | 武汉理工大学 | Method for extracting V2O5 from vanadium-containing shale by using chlorination evaporation |
| CN102816921A (en) * | 2012-06-15 | 2012-12-12 | 湖南大学 | Chloride-free vanadium extraction technology |
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| CN111876616B (en) * | 2020-07-27 | 2021-07-27 | 东北大学 | Stone coal navajoite oxidation, crystal breaking, roasting and vanadium extraction comprehensive utilization system |
| CN113106270A (en) * | 2021-03-26 | 2021-07-13 | 西部矿业股份有限公司 | Method for efficiently recovering vanadium based on modified acid leaching of vanadium-containing metallurgical slag |
| CN113930609B (en) * | 2021-09-29 | 2023-06-23 | 重庆大学 | Vanadium extraction and comprehensive utilization method for fluidized bed calcined stone coal |
| CN115198116A (en) * | 2022-07-21 | 2022-10-18 | 上海寰泰绿钒科技有限公司 | Method for extracting vanadium from vanadium-containing stone coal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101265522A (en) * | 2007-03-16 | 2008-09-17 | 闫国正 | Technique for extracting vanadium pentoxide by tunnel kiln calcification roasting |
| CN101880764A (en) * | 2010-08-11 | 2010-11-10 | 唐山奥特斯科技有限公司 | Process for roasting stone coal vanadium ore by tunnel car bottom furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101265522A (en) * | 2007-03-16 | 2008-09-17 | 闫国正 | Technique for extracting vanadium pentoxide by tunnel kiln calcification roasting |
| CN101880764A (en) * | 2010-08-11 | 2010-11-10 | 唐山奥特斯科技有限公司 | Process for roasting stone coal vanadium ore by tunnel car bottom furnace |
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