CN104745827A - Method for extracting vanadium from vanadium slag by calcified pellet roasting - Google Patents
Method for extracting vanadium from vanadium slag by calcified pellet roasting Download PDFInfo
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- CN104745827A CN104745827A CN201510151671.2A CN201510151671A CN104745827A CN 104745827 A CN104745827 A CN 104745827A CN 201510151671 A CN201510151671 A CN 201510151671A CN 104745827 A CN104745827 A CN 104745827A
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Abstract
The invention belongs to the technical field of vanadium extraction chemical industry, and discloses a method for extracting vanadium from vanadium slag by calcified pellet roasting. The method comprises the following steps: (1) mixing the vanadium slag with a calcifying additive; (2) spraying an adhesive water solution on the surface of the mixture in the step (1), and preparing pellets; and (3) roasting the pellets, crushing, dissolving the crushed pellets in water, and leaching. The method greatly enhances the vanadium leaching rate, avoids the bonding phenomenon in the vanadium slag high-temperature roasting process, and does not need to add vanadium extraction residues. Thus, the method is simple and easy in technique, has the advantages of wide application range and low cost, and has very high social benefit and economic benefit.
Description
Technical field
The invention belongs to vanadium extraction chemical technology field, relate to the method for Leaching of Vanadium from Vanadium slag, particularly, relate to a kind of by vanadium slag is carried out the method that calcification pellet roasting implements vanadium extraction.
Background technology
The reserves of China's vanadium occupy the 4th, the world, there is vanadium minerals resource in whole nation You10Duo Ge provinces and cities (district), but mainly concentrate on area, Sichuan and area, Chengde, especially the vanadium reserves of Panzhihua Region are quite abundant, nearly 10,000,000,000 tons of explored v-ti magnetite ore reserves, Vanadium Pentoxide in FLAKES reserves are 1,578 ten thousand tons, account for 55 % by weight of national reserves, 11 % by weight of world saving.
When carrying out vanadium extraction by converter blowing, by in vanadium enrichment to vanadium slag time, the method of the mainly calcification baking vanadium extraction of current widespread use, in order to reduce the bonding phenomenon of material in roasting process, residue will add vanadium extraction in the process of batch mixing after, although decrease the bonding of material like this, sacrifice the rate of recovery of vanadium, and in the process of roasting, also have the unequal phenomenon causing roasting to bond of part batch mixing.
In document " granularity is on the impact of vanadium slag roasting conversion rate " (Wu's envelope etc., " iron alloy ", 4th phase in 2010 total 213rd phase) in disclose and climb steel and produce the size-grade distribution of vanadium oxide vanadium slag used and the chemical composition of different grain size vanadium slag, have studied the affecting laws of vanadium slag granularity to vanadium transformation efficiency, be 80-160 order in vanadium slag granularity, vanadium slag: the ratio of tailings is 10:6, alkali than be 1.4 condition under roasting grog vanadium, its transformation efficiency reaches 86 % by weight.
Therefore, in the method for calcification baking vanadium extraction, how to reduce the bonding phenomenon of material, and the transformation efficiency how improving vanadium needs to research and develop further.
Summary of the invention
The object of the invention is to overcome in the method for calcification baking vanadium extraction of prior art, one is need the residue after adding vanadium extraction in the process of batch mixing, two is that material easily bonds in vanadium extracting process, three is defects of the low conversion rate of vanadium, and provides a kind of by vanadium slag is carried out the method that calcification pellet roasting implements vanadium extraction.
To achieve these goals, the invention provides a kind of by vanadium slag is carried out the method that calcification pellet roasting implements vanadium extraction, the method comprises the following steps:
(1) vanadium slag is mixed with calcification additive;
(2) aqueous solution of binding agent to be sprayed on the surface of step (1) mixed compound and to be prepared into pelletizing; And
(3) by broken after described pellet roasting, then the pelletizing after fragmentation is dissolved in water leaches.
For the deficiencies in the prior art, the present inventor has carried out large quantifier elimination, found that, calcification additive and vanadium slag are mixed and made into compound, the aqueous solution of the aqueous solution of certain density binding agent as calcium hydroxide is sprayed onto in compound and makes pelletizing, after carrying out high-temperature roasting, by broken for the pelletizing (grog) after roasting, more levigate after leach in aqueous.Of the present invention by vanadium slag is carried out the method that calcification pellet roasting implements vanadium extraction by adopting, substantially increase the leaching yield of vanadium, it also avoid the bonding phenomenon that vanadium slag produces in high-temperature calcination process simultaneously, and in the method for calcification pellet roasting of the present invention, do not need the residue after adding vanadium extraction, therefore, the method technique of calcification pellet roasting of the present invention is simple and easy to use, wide accommodation, cost are low, has very high Social benefit and economic benefit.
Other features and advantages of the present invention are described in detail in embodiment part subsequently.
Embodiment
Below the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
In the present invention, provide a kind of by vanadium slag is carried out the method that calcification pellet roasting implements vanadium extraction, the method comprises the following steps:
(1) vanadium slag is mixed with calcification additive;
(2) aqueous solution of binding agent to be sprayed on the surface of step (1) mixed compound and to be prepared into pelletizing; And
(3) by broken after described pellet roasting, then the pelletizing after fragmentation is dissolved in water leaches.
According to the present invention, in step (1), described vanadium slag is not particularly limited, and can be vanadium slag during vanadium extraction by converter blowing, also can be vanadium-bearing slag of high calcium and high phosphor, vanadium-containing wasting catalyst vanadium slag and other ore resource containing multiple resources; In the present invention, preferably, the vanadium slag (From Converter Vanadium-bearing Slag) when described vanadium slag is vanadium extraction by converter blowing, and the chemical composition of this From Converter Vanadium-bearing Slag is as shown in table 1.
According to the present invention, described vanadium slag is From Converter Vanadium-bearing Slag fine powder.
According to the present invention, in step (1), in described vanadium slag, the content of Vanadium Pentoxide in FLAKES can be 5-20 % by weight, is preferably 16-17 % by weight.
According to the present invention, wherein, in step (1), the granularity of described vanadium slag for being less than-200 orders, can being preferably-120 orders to-200 orders, being more preferably-120 orders.In the present invention, " order " refers to the empty eye number on every square of English inch screen cloth, such as, 50 orders just refer to that the eyelet on every square of English inch is 50, and 200 orders just refer to that the eyelet on every square of English inch is 200, order number is higher, eyelet is more, and then particle diameter is less, therefore, " order " simultaneously can by the particle diameter of the particle of screen cloth (such as vanadium slag) for representing; And in the present invention, 200 orders=74um=0.074 millimeter.
According to the present invention, in step (1), described calcification additive can be one or more in calcium oxide, calcium hydroxide and calcium carbonate, is preferably calcium oxide.In the present invention, described sodium carbonate is anhydrous sodium carbonate
According to the present invention, in step (1), the mol ratio of the consumption of described calcification additive and described Vanadium in Vanadium Residue can be 1-3:1, is preferably 1.5-2.5:1, is more preferably 1.8-2.2:1; In the present invention, in the process of whole batching, the molar weight of calcification additive be kept suitably higher than the molar weight of the vanadium in vanadium slag, complete to guarantee the roasting of vanadium slag.
According to the present invention, the aqueous solution of binding agent is sprayed on the surface of the compound of vanadium slag and calcification additive, wherein, described sprinkling is not particularly limited, can be the routine selection of those skilled in the art, such as, can carry out spraying (spray) with conventional equipment well-known to those skilled in the art, and spray the speed of (spray) and be also not particularly limited, as long as (spray) can be sprayed on the surface of the compound of vanadium slag and calcification additive.
According to the present invention, in step (2), described binding agent can be one or more in calcium hydroxide, calcium oxide and calcium chloride, be preferably calcium hydroxide, and the concentration of the aqueous solution of described tackiness agent can be 5-30 % by weight, be preferably 8-15 % by weight, be more preferably 9-11 % by weight.In the present invention, when the concentration of the aqueous solution of the tackiness agent that the present invention limits, the bonding of material can be reduced at described binding agent, and not need the vanadium slag after adding vanadium extraction, cost-saving.
According to the present invention, in step (2), with the gross weight of the consumption of Vanadium Pentoxide in FLAKES in described vanadium slag and described calcification additive for benchmark, the consumption of described binding agent can be 1-10 % by weight, is preferably 1-8 % by weight, is more preferably 2-7 % by weight.In the present invention, when the consumption of limited tackiness agent, can be more conducive to follow-uply be prepared into pelletizing.
According to the present invention, adopt balling disc that the compound after the aqueous solution of sprinkling binding agent is prepared into pelletizing, wherein, the device parameter of described balling disc is not particularly limited, and can be that the routine of those skilled in the art is selected; As long as the compound after the aqueous solution of sprinkling binding agent can be prepared into pelletizing, preferably, the diameter of described pelletizing is 3-30mm, is more preferably 5-8mm, most preferably is 5mm; In the present invention, also need dry for described pelletizing to obtain the pelletizing with some strength, the equipment of described drying and the condition of drying such as temperature and time are not particularly limited, can for selecting for the routine of those skilled in the art, as loft drier, baking oven etc. can be selected, as long as the pressure intensity of dried pelletizing can be made to be 10000-50000Pa, preferably, the pressure intensity of described pelletizing is 20000-40000Pa, more preferably, the pressure intensity of described pelletizing is 25000-35000Pa.
According to the present invention, in step (3), by described pellet roasting, wherein, the equipment of described roasting is not particularly limited, it can be the routine selection of those skilled in the art, in the present invention, the equipment of described roasting can be retort furnace, and the condition of described roasting can be: temperature is 820-950 DEG C, be preferably 850-930 DEG C, be more preferably 920 DEG C; Time is 0.2-10 hour, is preferably 0.5-1.5 hour, is more preferably 1 hour.
According to the present invention, in step (3), the pelletizing after roasting is broken, and the granularity of the pelletizing after fragmentation is less than-200 orders, is preferably-120 orders to-200 orders.
According to the present invention, in step (3), the condition of described leaching can be: temperature is 20-60 DEG C, is preferably 40-50 DEG C, is more preferably 50 DEG C; Time is 30-80 minute, is preferably 30-50 minute, is more preferably 40 minutes.
According to the present invention, in step (3), the pelletizing after fragmentation with specified particle size is leached in water, wherein, the volume ratio of the consumption of the pelletizing (solid) after water (liquid) and fragmentation can be 1:1-10, and preferably 1:4-6, is more preferably 5.
According to the present invention, in step (3), the pelletizing after fragmentation filters after leaching in water, and in the present invention, described filtration is not particularly limited, and can adopt method well-known to those skilled in the art.
Below will be described the present invention by embodiment.
In following examples and comparative example, the granularity of vanadium slag and described pelletizing can record by adopting wet method measuring method: each sample size is 200g, the sieve of 320 orders (0.045mm) is first used to carry out water sieve, after screen overflow is dried and is weighed, again screen overflow 200 orders (0.074mm) sieve is carried out water sieve, screen overflow weighs up the quality of each grade, calculates the percentage composition of each grade after drying and weighing.
The pressure intensity of described pelletizing can record by ISO 3271 standard determination method; And
Balling disc is purchased from Hua Zhi Electromechanical Technology Co., Ltd;
Calcium oxide, calcium hydroxide, calcium carbonate and calcium chloride are all purchased from chemical reagent company limited of traditional Chinese medicines group.
Below in conjunction with embodiment, the present invention is further illustrated.
Vanadium slag used in embodiment 1-8 and comparative example 1-5 is From Converter Vanadium-bearing Slag, and its main chemical compositions is as shown in table 1, and unit is % by weight.
Table 1
| Sample | V 2O 5 | MnO | CaO | MgO | SiO 2 | Al 2O 3 | TFe | Cr 2O 3 | TiO 2 |
| From Converter Vanadium-bearing Slag | 16.67 | 9.14 | 3.54 | 3.09 | 14.68 | 4.89 | 25.88 | 4.35 | 12.78 |
Embodiment 1
The present embodiment is to illustrate that the method for employing calcification pellet roasting of the present invention extracts the vanadium in vanadium slag.
Get 1000g From Converter Vanadium-bearing Slag fine powder to mix with 153.9g calcium oxide, obtain compound; Wherein, the granularity of described vanadium slag fine powder is-120 orders;
At 15 DEG C of temperature, 5g analytical pure calcium hydroxide is added in a certain amount of pure water, namely, with the gross weight of the consumption of Vanadium Pentoxide in FLAKES in described vanadium slag and described sodium additive for benchmark, the consumption of described binding agent approximates 2 % by weight, calcium hydroxide is dissolved in pure water be prepared into concentration be 9 % by weight calcium hydroxide glue solution;
Compound is placed in balling disc, the aqueous solution of calcium hydroxide binding agent is sprayed onto on the surface of this compound, controlling the speed of balling disc causes diameter to be the pelletizing of 5mm, then dry 10h at temperature is 110 DEG C in an oven, the above-mentioned pelletizing with special diameter and pressure intensity is placed in retort furnace and is heated to 950 DEG C, and under 950 DEG C of temperature condition roasting 0.5h, this vanadium slag does not produce bonding phenomenon in high-temperature calcination process;
Again the pelletizing (grog) after the roasting obtained is crushed to below 200 orders, then, the grog after fragmentation is all joined in 500ml pure water, be heated to 40 DEG C, leach and stir 60min, obtain containing vanadium solution;
It is 171.77g/L that result detects vanadiumcontent in solution, and the leaching yield of vanadium is 92.0 % by weight.
Embodiment 2
The present embodiment is to illustrate that the method for employing calcification pellet roasting of the present invention extracts the vanadium in vanadium slag.
Get 1000g From Converter Vanadium-bearing Slag fine powder to mix with 51.3g calcium oxide, obtain compound; Wherein, the granularity of described vanadium slag fine powder is-200 orders;
At 15 DEG C of temperature, 5g analytical pure calcium hydroxide is added in a certain amount of pure water, namely, with the gross weight of the consumption of Vanadium Pentoxide in FLAKES in described vanadium slag and described sodium additive for benchmark, the consumption of described binding agent approximates 2 % by weight, calcium hydroxide is dissolved in pure water be prepared into concentration be 11 % by weight calcium hydroxide glue solution;
Compound is placed in balling disc, the aqueous solution of calcium hydroxide binding agent is sprayed onto on the surface of this compound, controlling the speed of balling disc causes diameter to be the pelletizing of 5mm, then dry 10h at temperature is 110 DEG C in an oven, to make the pressure intensity of this pelletizing for 35000Pa;
The above-mentioned pelletizing with special diameter and pressure intensity is placed in retort furnace and is heated to 820 DEG C, and under 820 DEG C of temperature condition roasting 1h, this vanadium slag does not produce bonding phenomenon in high-temperature calcination process;
Again the pelletizing (grog) after the roasting obtained is crushed to below 200 orders, then, the grog after fragmentation is all joined in 500ml pure water, be heated to 50 DEG C, leach and stir 20min, obtain containing vanadium solution;
It is 173.63g/L that result detects vanadiumcontent in solution, and the leaching yield of vanadium is 93 % by weight.
Embodiment 3
The present embodiment is to illustrate that the method for employing calcification pellet roasting of the present invention extracts the vanadium in vanadium slag.
Get 1000g From Converter Vanadium-bearing Slag fine powder to mix with 102.6g calcium oxide, obtain compound; Wherein, the granularity of described vanadium slag fine powder is-120 orders;
At 25 DEG C of temperature, 20g analytical pure calcium hydroxide is added in a certain amount of pure water, namely, with the gross weight of the consumption of Vanadium Pentoxide in FLAKES in described vanadium slag and described sodium additive for benchmark, the consumption of described binding agent approximates 7 % by weight, calcium hydroxide is dissolved in pure water be prepared into concentration be 10 % by weight calcium hydroxide glue solution;
Compound is placed in balling disc, the aqueous solution of calcium hydroxide binding agent is sprayed onto on the surface of this compound, controlling the speed of balling disc causes diameter to be the pelletizing of 5mm, then dry 10h at temperature is 110 DEG C in an oven, to make the pressure intensity of this pelletizing for 20000Pa;
The above-mentioned pelletizing with special diameter and pressure intensity is placed in retort furnace and is heated to 920 DEG C, and under 920 DEG C of temperature condition roasting 1h, this vanadium slag does not produce bonding phenomenon in high-temperature calcination process;
Again the pelletizing (grog) after the roasting obtained is crushed to below 200 orders, then, the grog after fragmentation is all joined in 500ml pure water, be heated to 50 DEG C, leach and stir 50min, obtain containing vanadium solution;
It is 177.37g/L that result detects vanadiumcontent in solution, and the leaching yield of vanadium is 95.0 % by weight.
Embodiment 4
The present embodiment is to illustrate that the method for employing calcification pellet roasting of the present invention extracts the vanadium in vanadium slag.
According to method vanadium extraction from vanadium slag of embodiment 1, difference is, calcium hydroxide binding agent is replaced with calcium oxide;
It is 168.03g/L that result detects vanadiumcontent in solution, and the leaching yield of vanadium is 90 % by weight.
Embodiment 5
The present embodiment is to illustrate that the method for employing calcification pellet roasting of the present invention extracts the vanadium in vanadium slag.
According to method vanadium extraction from vanadium slag of embodiment 1, difference is, adds 28.85g analytical pure calcium hydroxide, namely in a certain amount of pure water, with the gross weight of the consumption of Vanadium Pentoxide in FLAKES in described vanadium slag and described sodium additive for benchmark, the consumption of described binding agent is 9 % by weight; Calcium hydroxide is dissolved in pure water be prepared into concentration be 10 % by weight calcium hydroxide glue solution;
It is 168.22g/L that result detects vanadiumcontent in solution, and the leaching yield of vanadium is 90.1 % by weight.
Embodiment 6
The present embodiment is to illustrate that the method for employing calcification pellet roasting of the present invention extracts the vanadium in vanadium slag.
According to method vanadium extraction from vanadium slag of embodiment 1, difference is, adds 32.06g analytical pure calcium hydroxide, namely in the pure water of 200ml, with the gross weight of the consumption of Vanadium Pentoxide in FLAKES in described vanadium slag and described sodium additive for benchmark, the consumption of described binding agent is 10 % by weight;
It is 168.97g/L that result detects vanadiumcontent in solution, and the leaching yield of vanadium is 90.5 % by weight.
Embodiment 7
The present embodiment is to illustrate that the method for employing calcification pellet roasting of the present invention extracts the vanadium in vanadium slag.
According to method vanadium extraction from vanadium slag of embodiment 1, difference is, calcium oxide is replaced with calcium hydroxide;
It is 168.22g/L that result detects vanadiumcontent in solution, and the leaching yield of vanadium is 90.1 % by weight.
Embodiment 8
The present embodiment is to illustrate that the method for employing calcification pellet roasting of the present invention extracts the vanadium in vanadium slag.
According to method vanadium extraction from vanadium slag of embodiment 1, difference is, calcium oxide is replaced with calcium carbonate;
It is 168.41g/L that result detects vanadiumcontent in solution, and the leaching yield of vanadium is 90.2 % by weight.
Comparative example 1
According to method vanadium extraction from vanadium slag of embodiment 1, difference is, in the method, adds the residue after vanadium extraction in roasting process;
It is 130.69g/L that result detects vanadiumcontent in solution, and the leaching yield of vanadium is 70 % by weight; Although and slightly decrease the bonding of material, the rate of recovery reduction of vanadium, and also have the unequal phenomenon causing roasting to bond of part batch mixing in roasting process.
Comparative example 2
According to method vanadium extraction from vanadium slag of embodiment 1, difference is, in the method, does not add binding agent calcium hydroxide;
It is 140.21g/L that result detects vanadiumcontent in solution, and the leaching yield of vanadium is 75.1 % by weight; And this vanadium slag produces bonding phenomenon in high-temperature calcination process.
Comparative example 3
According to method vanadium extraction from vanadium slag of embodiment 1, difference is, in the method, 38.47g analytical pure calcium hydroxide is added in the pure water of 200ml, namely, with the gross weight of the consumption of Vanadium Pentoxide in FLAKES in described vanadium slag and described sodium additive for benchmark, the consumption of described binding agent is 12 % by weight;
It is 143.76g/L that result detects vanadiumcontent in solution, and the leaching yield of vanadium is 77 % by weight; And this vanadium slag produces bonding phenomenon in high-temperature calcination process.
Comparative example 4
According to method vanadium extraction from vanadium slag of embodiment 1, difference is, in the method, controls the speed of balling disc and causes diameter to be the pelletizing of 2mm;
It is 145.63g/L that result detects vanadiumcontent in solution, and the leaching yield of vanadium is 78 % by weight; And this vanadium slag produces bonding phenomenon in high-temperature calcination process.
Comparative example 5
According to method vanadium extraction from vanadium slag of embodiment 1, difference is, in the method, the pressure intensity of this pelletizing is 9000Pa;
It is 142.83g/L that result detects vanadiumcontent in solution, and the leaching yield of vanadium is 76.5 % by weight; And this vanadium slag produces bonding phenomenon in high-temperature calcination process.
Known by the result of above embodiment 1-8 and comparative example 1-5, the present invention is by carrying out vanadium slag the method that calcification pellet roasting implements vanadium extraction, substantially increase the leaching yield of vanadium, it also avoid the bonding phenomenon that vanadium slag produces in high-temperature calcination process simultaneously, and in the method for calcification pellet roasting of the present invention, do not need the residue after adding vanadium extraction, therefore, the method technique of calcification pellet roasting of the present invention is simple and easy to use, wide accommodation, cost are low, has very high Social benefit and economic benefit.
More than describe the preferred embodiment of the present invention in detail; but the present invention is not limited to the detail in above-mentioned embodiment, within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible array mode.
In addition, also can carry out arbitrary combination between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (11)
1., by vanadium slag is carried out the method that calcification pellet roasting implements vanadium extraction, the method comprises the following steps:
(1) vanadium slag is mixed with calcification additive;
(2) aqueous solution of binding agent to be sprayed on the surface of step (1) mixed compound and to be prepared into pelletizing; And
(3) by broken after described pellet roasting, then the pelletizing after fragmentation is dissolved in water leaches.
2. method according to claim 1, wherein, in step (1), in described vanadium slag, the content of Vanadium Pentoxide in FLAKES is 5-20 % by weight.
3. method according to claim 1 and 2, wherein, in step (1), the granularity of described vanadium slag, for being less than-200 orders, is preferably-120 orders to-200 orders.
4. method according to claim 1, wherein, in step (1), described calcification additive is one or more in calcium oxide, calcium hydroxide and calcium carbonate, is preferably calcium oxide.
5., according to the method in claim 1-4 described in any one, wherein, in step (1), the mol ratio of the consumption of described calcification additive and described Vanadium in Vanadium Residue is 1-3:1.
6. method according to claim 1, wherein, in step (2), described binding agent is one or more in calcium hydroxide, calcium oxide and calcium chloride, be preferably calcium hydroxide, and the concentration of the aqueous solution of described binding agent is 5-30 % by weight.
7. the method according to claim 1 or 6, wherein, in step (2), with the gross weight of the consumption of Vanadium Pentoxide in FLAKES in described vanadium slag and described calcification additive for benchmark, the consumption of described binding agent is 5-10 % by weight.
8. method according to claim 1, wherein, in step (2), the diameter of described pelletizing is 3-30mm, is preferably 5-8mm; Pressure intensity is 10000-50000Pa.
9. method according to claim 1, wherein, in step (3), the condition of described roasting is: temperature is 820-950 DEG C, is preferably 850-930 DEG C; Time is 0.2-10 hour, is preferably 0.5-1.5 hour.
10. method according to claim 1, wherein, in step (3), the condition of described leaching is: temperature is 20-60 DEG C, is preferably 40-50 DEG C; Time is 30-80 minute, is preferably 30-50 minute.
11. methods according to claim 1 or 10, wherein, in step (3), the volume ratio of the consumption of the pelletizing after described water and fragmentation is 1:1-10, is preferably 1:4-6.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106755960A (en) * | 2016-12-12 | 2017-05-31 | 东北大学 | A kind of method of microwave calcification vanadium slag sintering vanadium extraction |
| CN110184452A (en) * | 2019-06-11 | 2019-08-30 | 北京科技大学 | A kind of method of vanadium in extraction solid |
| CN110343855A (en) * | 2019-08-20 | 2019-10-18 | 攀钢集团攀枝花钢铁研究院有限公司 | The method of efficient calcification vanadium extraction |
| CN111519021A (en) * | 2020-06-09 | 2020-08-11 | 攀钢集团攀枝花钢铁研究院有限公司 | Calcification roasting method for vanadium-containing material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101161831A (en) * | 2007-11-09 | 2008-04-16 | 攀钢集团攀枝花钢铁研究院 | Calcification vanadium slag sintering method |
| CN101818244A (en) * | 2010-04-03 | 2010-09-01 | 大连理工大学 | Process method for calcified roasting of boron-rich slag |
| CN102703688A (en) * | 2012-05-07 | 2012-10-03 | 河北钢铁股份有限公司承德分公司 | Method for recovering vanadium in vanadium-titanium magnetite ore |
| CN103898315A (en) * | 2014-03-20 | 2014-07-02 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for pelletization calcination of vanadium slag |
-
2015
- 2015-04-01 CN CN201510151671.2A patent/CN104745827A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101161831A (en) * | 2007-11-09 | 2008-04-16 | 攀钢集团攀枝花钢铁研究院 | Calcification vanadium slag sintering method |
| CN101818244A (en) * | 2010-04-03 | 2010-09-01 | 大连理工大学 | Process method for calcified roasting of boron-rich slag |
| CN102703688A (en) * | 2012-05-07 | 2012-10-03 | 河北钢铁股份有限公司承德分公司 | Method for recovering vanadium in vanadium-titanium magnetite ore |
| CN103898315A (en) * | 2014-03-20 | 2014-07-02 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for pelletization calcination of vanadium slag |
Non-Patent Citations (3)
| Title |
|---|
| 张天启: "《竖炉球团技能300问》", 30 June 2013 * |
| 杨保祥: "《钒基材料制造》", 31 December 2014 * |
| 那树人: "《炼铁工艺学》", 30 September 2014 * |
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| CN106755960A (en) * | 2016-12-12 | 2017-05-31 | 东北大学 | A kind of method of microwave calcification vanadium slag sintering vanadium extraction |
| CN110184452A (en) * | 2019-06-11 | 2019-08-30 | 北京科技大学 | A kind of method of vanadium in extraction solid |
| CN110343855A (en) * | 2019-08-20 | 2019-10-18 | 攀钢集团攀枝花钢铁研究院有限公司 | The method of efficient calcification vanadium extraction |
| CN111519021A (en) * | 2020-06-09 | 2020-08-11 | 攀钢集团攀枝花钢铁研究院有限公司 | Calcification roasting method for vanadium-containing material |
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