CN104651561A - Method for smelting iron ore concentrate of vanadium-titanium magnetite in non-blast furnace - Google Patents
Method for smelting iron ore concentrate of vanadium-titanium magnetite in non-blast furnace Download PDFInfo
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- CN104651561A CN104651561A CN201510080684.5A CN201510080684A CN104651561A CN 104651561 A CN104651561 A CN 104651561A CN 201510080684 A CN201510080684 A CN 201510080684A CN 104651561 A CN104651561 A CN 104651561A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a method for smelting iron ore concentrate of vanadium-titanium magnetite in a non-blast furnace, comprising the following steps: (1) selecting vanadium-titanium iron ore concentrate; (2) reducing with a reducer which is common coal; (3) proportioning the vanadium-titanium iron ore concentrate, the reducer, dolomite and organic adhesive in a proportioning chamber; (4) granulating and screening; (5) drying green balls; (6) quickly reducing at a high temperature to produce vanadium-titanium reduced iron; (7) smelting in an electric furnace by adding 4-5% of metallurgical semi-coke according to the weight of the vanadium-titanium reduced iron to produce titanium slag and vanadium-containing molten iron; and (8) extracting vanadium in a converter, blowing oxygen to the molten iron to oxidize the vanadium therein, thus generating vanadium slag and molten iron. By adopting the method, the interaction of reducing gas and ferric oxide can be strengthened and sufficient reaction of carbon in blocks and iron ore powder in a reasonable proportion is ensured, so that the probability of generating FeO is greatly reduced; the reduction speed is high, and the problems of high reduction temperature, long time and expansion and pulverization at the low-temperature reduction stage can be solved; and the metallization ratio can reach 80-85%.
Description
Technical field
The present invention relates to a kind of method of iron ore concentrate of non-smelting vanadium-titanium magnetite by blast furnace.
Background technology
Different according to the element reclaimed to the current technical process of suitability for industrialized production in the world of the iron ore concentrate of vanadium titano-magnetite, be divided into two kinds of operational paths.
A kind of is the technique only reclaiming vanadium in vanadium titano-magnetite.The country such as South Africa, Australia is to containing the higher vanadium titano-magnetite of vanadium (V in concentrate
2o
5> 1%), adopt the technique only reclaiming vanadium wherein.Such as: v-ti magnetite green ore composition (%) 53-57TFe, 1.4-1.9V that South Africa uses
2o
5, 12-15TiO
2, 1.0-1.8SiO
2, 2.5-3.5Al
2o
3.Adopt rotary kiln by concentrate oxygen sodium roasting, water logging, precipitation obtain Vanadium Pentoxide in FLAKES, and other elements do not reclaim.
Another kind is the technique only reclaiming vanadium and iron two kinds of elements.The country such as South Africa, New Zealand adopts rotary kiln-electric furnace route, reclaim the vanadium in vanadium titano-magnetite and iron two kinds of elements, the not technique of recovery Pd: first by vanadium titano-magnetite prereduction in rotary kiln, then the prereduction product hot charging obtained is entered electric furnace and continue reduction, obtain vanadium-bearing hot metal, South Africa vibrations tank, New Zealand blows by hot metal ladle and obtains vanadium slag, as the raw material extracting Vanadium Pentoxide in FLAKES, the half steel converter smelting obtained after blowing vanadium becomes molten steel.The electric furnace slag that electric furnace obtains containing about TiO232%, to abandon or as pavior.The country such as Russia, China's (climb steel, hold steel) adopts blast furnace-converter technique to reclaim vanadium and iron two kinds of elements, the disposable technique of other element such as titanium.
In order to reclaim the titanium in vanadium titano-magnetite, improving comprehensive utilization of resources level, doing a large amount of Test And Research Works both at home and abroad.China, in the 60-80 age in last century, once organized the science and technology strength in the whole nation to tackle key problems, and proposed following several technical process and carried out the experimental study of different scales.
(1) vanadium titano-magnetite pelletizing-rotary kiln prereduction-electric furnace drastic reduction technique, obtain vanadium-bearing hot metal and titanium slag, vanadium-bearing hot metal blows vanadium and obtains vanadium slag, and as the raw material extracting Vanadium Pentoxide in FLAKES, semi-steel making, titanium slag is as the raw material producing titanium white.This flow process is tested on 10Kt/a rotary kiln-furnace device.
(2) vanadium titano-magnetite concentrate pelletizing-rotary kiln prereduction-furnace melting is separated, and obtains molten iron-steelmaking, and vanadium and titanium are enriched in molten point slag, as vanadium extraction and the raw material carrying titanium.
(3) vanadium titano-magnetite concentrate pelletizing-shaft furnace gas reduction-furnace melting is separated, and obtains molten iron-steelmaking, and vanadium and titanium are enriched in molten point slag, as vanadium extraction and the raw material carrying titanium.This flow process is at 5m
3shaft furnace device is tested.
(4) vanadium titano-magnetite+sodium salt pelletizing, rotary kiln oxidizing roasting-water enchroachment (invasion), extracts Vanadium Pentoxide in FLAKES, and after water logging, pelletizing-rotary kiln reduction-furnace melting is separated and obtains molten iron and titanium slag, and titanium slag is as carrying titanium material.In addition, the technical process of the various reducing apparatus such as fluidized-bed, tunnel furnace is not proposed according to different reduction apparatuss.
The test of different scales is being carried out in above-mentioned various technical process in varying degrees, but does not have industrialization so far, and mainly technico-economical comparison all compared with blast furnace, therefore can not lie on the table.
Foreign study vanadium titano-magnetite non-blast furnace novel process for smelting works, mainly the unit such as Moscow Ba Yikefu emtallurgy research institute of the former Soviet Union and Ural ferrous metal research institute, once studied the new technological process of the non-blast-furnace smelting of vanadium titano-magnetite.The vanadium titano-magnetite concentrate composition (%) 58.6TFe, the 0.77V that use
2o
5, its technical process is: first make pelletizing, and pelletizing rotary kiln or reduction shaft furnace obtain the metallized pellet of degree of metalization 90%, then in electric furnace molten point, obtain the low-carbon (LC) molten iron containing (V) 0.1-0.2%, directly smelt into vanadium-containing low steel; The molten point of vanadium titanium slag obtained is containing (FeO) > 10%, (V
2o
5) 3-3.5%, (TiO
2) 50%; Vanadium titanium slag first uses water-swollen squid V
2o
5, remaining titanium slag adopts Leaching in Hydrochloric Acid impurity, then after silica removal, obtains containing TiO
2the artificial red rutile of > 90, as producing TiCl
4raw material.So far the report of industrialization is not also had.
The Direct Reduction of v-ti magnetite has following two features:
One is difficult reduction.Because the mineral structure in vanadium titano-magnetite is very complicated, different from common iron ore, the existence form of iron wherein in mineral is not single ferriferous oxide, and iron will be combined into multi mineral with many elements, as titanium magnet, ilmenite, ulvite etc., also replaced by other multiple element simultaneously, together, its reduction difficulty is more much bigger than common iron ore, and therefore reduction temperature is high in tight symbiosis, time is long, and v-ti magnetite mine disaster reduction is first difficulty.
Two is that low-temperature reduction expands.V-ti Bearing Magnetite Pellets in (700 ±) from Fe
2o
3-Fe
3o
4reduction phase expands serious, and after expanding, intensity sharply declines, and is therefore easy to efflorescence, and in reduction furnace (rotary kiln, shaft furnace), bonding, makes the working of a furnace worsen, cannot go on smoothly.Therefore the expansion in vanadium titano-magnetite low-temperature reduction stage, pulverizing problem are technical second features.
Summary of the invention
The present invention is for overcoming above-mentioned deficiency of the prior art, a kind of method of iron ore concentrate of non-smelting vanadium-titanium magnetite by blast furnace is provided, the interaction of reducing gas and ferric oxide can be strengthened, ensure carbon and the powdered iron ore abundant reaction under rational proportion in agglomerate, the chance of generation FeO is reduced greatly; Reduction rate is fast, can solve that reduction temperature is high, the time long and the expansion in low-temperature reduction stage, pulverizing problem; And improve degree of metalization.
Technical solution of the present invention:
A method for the iron ore concentrate of non-smelting vanadium-titanium magnetite by blast furnace, its step is as follows:
(1) sefstromite concentrate is chosen
Grade is selected to be Fe48.50%-49.01%, TiO
220.13%-22.09%, V
2o
5the sefstromite concentrate of 1.61%-1.80%;
(2) reduce
Adopt common coal to be reductive agent, reductive agent composition is as follows: Cf 65.5%-68.8%, Cv 13%-15%, S 0.4%-0.5% and Ash 15%-17%;
(3) prepare burden
Count by weight, sefstromite concentrate 1.25 parts, 0.28 part-0.3 part, reductive agent coal, rhombspar 0.1 part-0.2 part, organic binder bond 0.006 part-0.018 part, prepare burden in proportioning room;
(4) pelletizing and screening
Be pressed into green-ball through blending transportation to ball press from proportioning room material out, sieved by roll screen, outsifting diameter is 25mm-30mm, makes raw material after treatment and uses;
(5) green-ball is dried
Green-ball drying machine is dried, and the bake out temperature of dryer, lower than the pyrolysis temperature of coal blending, is dried rear green-ball pressure and reached more than 30Kg;
(6) fast restore
Green-ball is placed in silicon carbide tank, delivers to vertical fast reduction furnace by coal charger, and carries heating gas, and coal gas mixed thermal value is 6060Kj/m
3-6600Kj/m
3, gas outlet temperature 450 DEG C-550 DEG C, add-on is 10.4GJ/t-11.2GJ/t, reduction temperature 750 DEG C-850 DEG C, 4 hours-6 hours recovery time, produces vanadium titanium reduced iron by high temperature reduction;
(7) molten point of electric furnace
The vanadium titanium reduced iron of reduction is directly loaded electric furnace at 600 DEG C-800 DEG C, and by vanadium titanium reduced iron weight with addition of the metallurgical blue charcoal of 4%-5%, blowing oxygen quantity is 25m
3/ t-30m
3/ t, 90 minutes-100 minutes tap to tap time, produces titanium slag and vanadium-bearing hot metal;
(8) vanadium extraction by converter blowing
The vanadium-bearing hot metal direct hot charging at 600 DEG C-800 DEG C produced with molten point electric furnace is entered in converter, not with slag former, only in molten iron, is blown into oxygen, duration of blast 5min-6min, oxygen supply pressure 0.7MPa-0.8MPa, oxygen-supplying amount 14m
3/ t-18m
3/ t, oxygen blast temperature 1340 DEG C-1400 DEG C, makes vanadium oxidation wherein, generates vanadium slag and molten iron.
Described organic binder bond is the mixture of humic acids binding agent or Xylo-Mucine or humic acids binding agent and carboxymethyl cellulose.
The bake out temperature of described dryer is 300 DEG C-350 DEG C;
When described organic binder bond is the mixture of humic acids binding agent and carboxymethyl cellulose, the weight ratio of humic acids binding agent and carboxymethyl cellulose is 1:2-1:5.
Beneficial effect of the present invention:
Because carbon containing ferriferous oxide pelletizing is delivered in reducer by the present invention, directly carry out high temperature reduction.Pelletizing surface at high temperature sinters instantaneously, lumps raw material " tenders with a crispy crust ", channelling effect in porous material reaction makes the reducing gas generated in agglomerate not easily to external diffusion, effectively enhance the interaction of reducing gas and ferric oxide, ensure carbon and the powdered iron ore abundant reaction under rational proportion in agglomerate.The chance of generation FeO is reduced greatly.Reduction rate is fast, the time is short (only need 4-6 hour), solve that reduction temperature is high, the time long and the expansion in low-temperature reduction stage, pulverizing problem.With v-ti magnetite breeze (containing Fe48.5-49.01%, TiO
220.13-22.09%, V
2o
51.61-1.0%) be raw material, additional reductive agent (granularity <2mm), binding agent, rhombspar etc., degree of metalization can be obtained by high temperature reduction and reach the metallized pellet of 80%-85%-containing vanadium titanium reduced iron, for molten point of electric furnace and vanadium extraction by converter blowing create condition.
Embodiment
Embodiment 1
A method for the iron ore concentrate of non-smelting vanadium-titanium magnetite by blast furnace, its step is as follows:
(1) sefstromite concentrate is chosen
Grade is selected to be Fe49.01%, TiO
222.09%, V
2o
5the sefstromite concentrate of 1.80%;
(2) reduce
Adopt common coal to be reductive agent, reductive agent composition is as following table:
| Coal constituent | Cf | Cv | S | Ash |
| ％ | 68.8 | 15 | 0.5 | 17 |
(3) prepare burden
Count by weight, sefstromite concentrate 1.25 parts, 0.3 part, reductive agent coal, rhombspar 0.2 part, organic binder bond 0.018 part, described organic binder bond is the mixture of humic acids binding agent or Xylo-Mucine or humic acids binding agent and carboxymethyl cellulose, the present embodiment is the mixture of humic acids binding agent and carboxymethyl cellulose, the weight ratio of described humic acids binding agent and carboxymethyl cellulose is 1:5, prepares burden in proportioning room;
(4) pelletizing and screening
Be pressed into green-ball through blending transportation to ball press from proportioning room material out, go out containing certain powder in the green-ball of ball press, sieved by roll screen, outsifting diameter is 25mm-30mm, makes raw material after treatment and uses;
(5) green-ball is dried
Green-ball drying machine is dried, and after drying, green-ball pressure reaches more than 40Kg; The bake out temperature of dryer is 350 DEG C (pyrolysis temperatures lower than coal blending);
(6) fast restore
Green-ball is placed in silicon carbide tank, delivers to vertical fast reduction furnace by coal charger, and carries heating gas, and coal gas mixed thermal value is 6600Kj/m
3, gas outlet temperature 550 DEG C, add-on is 11.2GJ/t, reduction temperature 850 DEG C, 6 hours recovery times, produces by high temperature reduction the vanadium titanium reduced iron that degree of metalization reaches 85%;
(7) molten point of electric furnace
The vanadium titanium reduced iron of reduction is directly loaded electric furnace at 800 DEG C, by reduced iron weight with addition of 5% metallurgical blue charcoal, blowing oxygen quantity 30m
3/ t, 100 minutes tap to tap time, produces titanium slag (TiO
260%) and vanadium-bearing hot metal;
(8) vanadium extraction by converter blowing
The molten point of vanadium-bearing hot metal direct hot charging at 800 DEG C produced is entered in converter, not with slag former, only in molten iron, is blown into oxygen, duration of blast 6min, oxygen supply pressure 0.8MPa, oxygen-supplying amount 18m
3/ t, oxygen blast temperature 1400 DEG C, makes vanadium oxidation wherein, generates vanadium slag (V
2o
514%) and molten iron.
Embodiment 2
A method for the iron ore concentrate of non-smelting vanadium-titanium magnetite by blast furnace, its step is as follows:
(1) sefstromite concentrate is chosen
Grade is selected to be Fe48.50%, TiO
220.13%, V
2o
5the sefstromite concentrate of 1.61%;
(2) reduce
Adopt common coal to be reductive agent, reductive agent composition is as following table:
| Coal constituent | Cf | Cv | S | Ash |
| ％ | 65.5 | 13 | 0.4 | 15 |
(3) prepare burden
Count by weight, sefstromite concentrate 1.25 parts, 0.28 part, reductive agent coal, rhombspar 0.1 part, organic binder bond 0.006 part, described organic binder bond is the mixture of humic acids binding agent or Xylo-Mucine or humic acids binding agent and carboxymethyl cellulose, and the weight part of humic acids binding agent and carboxymethyl cellulose is 1:2, prepares burden in proportioning room;
(4) pelletizing and screening
Be pressed into green-ball from proportioning room material out through blending transportation to ball press to go out containing certain powder the green-ball of ball press, sieved by roll screen, outsifting diameter is 25mm-30mm, makes raw material after treatment and uses;
(5) green-ball is dried
Green-ball drying machine is dried, and after drying, green-ball pressure reaches 30Kg;
The bake out temperature of dryer need lower than the pyrolysis temperature of coal blending (caking coal starts softening temperature), and the present embodiment is 300 DEG C;
(6) fast restore
Green-ball is placed in silicon carbide tank, delivers to vertical fast reduction furnace by coal charger, and carries heating gas, and coal gas mixed thermal value is 6060Kj/m
3, gas outlet temperature 450 DEG C, add-on is 10.4GJ/t, reduction temperature 750 DEG C, 4 hours recovery times, produces by high temperature reduction the vanadium titanium reduced iron that degree of metalization reaches 80.12%;
(7) molten point of electric furnace
The vanadium titanium reduced iron of reduction is directly loaded electric furnace at 600 DEG C, and by reduced iron weight with addition of 4% metallurgical blue charcoal, blowing oxygen quantity is 25m
3/ t, 90 minutes tap to tap time, produces titanium slag (TiO
255.03%) and vanadium-bearing hot metal;
(8) vanadium extraction by converter blowing
The molten point of vanadium-bearing hot metal direct hot charging at 600 DEG C produced is entered in converter, not with slag former, only in molten iron, is blown into oxygen, duration of blast 5min, oxygen supply pressure 0.7MPa, oxygen-supplying amount 14m
3/ t, oxygen blast temperature 1340 DEG C, makes vanadium oxidation wherein, generates vanadium slag (V
2o
512.15%) and molten iron.
Embodiment 3
A method for the iron ore concentrate of non-smelting vanadium-titanium magnetite by blast furnace, its step is as follows:
(1) sefstromite concentrate is chosen
Grade is selected to be Fe48.80%, TiO
220.509%, V
2o
5the sefstromite concentrate of 1.7%;
(2) reduce
Adopt common coal to be reductive agent, reductive agent composition is as following table:
| Coal constituent | Cf | Cv | S | Ash |
| ％ | 67.1 | 14 | 0.45 | 16 |
(3) prepare burden
Count by weight, sefstromite concentrate 1.25 parts, 0.29 part, reductive agent coal, rhombspar 0.15 part, organic binder bond 0.012 part, described organic binder bond is the mixture of humic acids binding agent and Xylo-Mucine, and the weight ratio of humic acids binding agent and Xylo-Mucine is 1:3, prepares burden in proportioning room;
(4) pelletizing and screening
Be pressed into green-ball through blending transportation to ball press from proportioning room material out, sieved by roll screen, outsifting diameter is 25mm-30mm, makes raw material after treatment and uses;
(5) green-ball is dried
Green-ball drying machine is dried, and after drying, green-ball pressure reaches 35Kg; The bake out temperature of dryer need lower than the pyrolysis temperature of coal blending (caking coal starts softening temperature), and the present embodiment is 320 DEG C;
(6) fast restore
Green-ball is placed in silicon carbide tank, delivers to vertical fast reduction furnace by coal charger, and carries heating gas, and coal gas mixed thermal value is 6300Kj/m
3, gas outlet temperature 500 DEG C, add-on is 10.8GJ/t, reduction temperature 800 DEG C, 5 hours recovery times, produces by high temperature reduction the vanadium titanium reduced iron that degree of metalization reaches 82.68%;
(7) molten point of electric furnace
The vanadium titanium reduced iron of reduction is directly loaded electric furnace at 700 DEG C, and by vanadium titanium reduced iron weight with addition of 4.5% metallurgical blue charcoal, blowing oxygen quantity is 28m
3/ t (vanadium titanium reduced iron), 95 minutes tap to tap time, produces titanium slag (TiO
257.75%) and vanadium-bearing hot metal;
(8) vanadium extraction by converter blowing
The molten point of vanadium-bearing hot metal direct hot charging at 700 DEG C produced is entered in converter, not with slag former, only in molten iron, is blown into oxygen, duration of blast 5.5min, oxygen supply pressure 0.75MPa, oxygen-supplying amount 16m
3/ t, oxygen blast temperature 1370 DEG C, makes vanadium oxidation wherein, generates vanadium slag (V
2o
512.97%) and molten iron.
Embodiment 4
Described organic binder bond is humic acids binding agent, the other the same as in Example 1-embodiment 3.
Embodiment 5
Described organic binder bond is Xylo-Mucine, the other the same as in Example 1-embodiment 3.
Claims (4)
1. a method for the iron ore concentrate of non-smelting vanadium-titanium magnetite by blast furnace, is characterized in that step is as follows:
(1) sefstromite concentrate is chosen
Grade is selected to be Fe48.50%-49.01%, TiO
220.13%-22.09%, V
2o
5the sefstromite concentrate of 1.61%-1.80%;
(2) reduce
Adopt common coal to be reductive agent, reductive agent composition is as follows: Cf 65.5%-68.8%, Cv 13%-15%, S 0.4%-0.5% and Ash 15%-17%;
(3) prepare burden
Count by weight, sefstromite concentrate 1.25 parts, 0.28 part-0.3 part, reductive agent coal, rhombspar 0.1 part-0.2 part, organic binder bond 0.006 part-0.018 part, prepare burden in proportioning room;
(4) pelletizing and screening
Be pressed into green-ball through blending transportation to ball press from proportioning room material out, sieved by roll screen, outsifting diameter is 25mm-30mm, makes raw material after treatment and uses;
(5) green-ball is dried
Green-ball drying machine is dried, and the bake out temperature of dryer, lower than the pyrolysis temperature of coal blending, is dried rear green-ball pressure and reached more than 30Kg;
(6) fast restore
Green-ball is placed in silicon carbide tank, delivers to vertical fast reduction furnace by coal charger, and carries heating gas, and coal gas mixed thermal value is 6060Kj/m
3-6600Kj/m
3, gas outlet temperature 450 DEG C-550 DEG C, add-on is 10.4GJ/t-11.2GJ/t, reduction temperature 750 DEG C-850 DEG C, 4 hours-6 hours recovery time, produces vanadium titanium reduced iron by high temperature reduction;
(7) molten point of electric furnace
The vanadium titanium reduced iron of reduction is directly loaded electric furnace at 600 DEG C-800 DEG C, and by vanadium titanium reduced iron weight with addition of the metallurgical blue charcoal of 4%-5%, blowing oxygen quantity is 25m
3/ t-30m
3/ t, 90 minutes-100 minutes tap to tap time, produces titanium slag and vanadium-bearing hot metal;
(8) vanadium extraction by converter blowing
The vanadium-bearing hot metal direct hot charging at 600 DEG C-800 DEG C produced with molten point electric furnace is entered in converter, not with slag former, only in molten iron, is blown into oxygen, duration of blast 5min-6min, oxygen supply pressure 0.7MPa-0.8MPa, oxygen-supplying amount 14m
3/ t-18m
3/ t, oxygen blast temperature 1340 DEG C-1400 DEG C, makes vanadium oxidation wherein, generates vanadium slag and molten iron.
2. the method for the iron ore concentrate of a kind of non-smelting vanadium-titanium magnetite by blast furnace according to claim 1, is characterized in that described organic binder bond is the mixture of humic acids binding agent or Xylo-Mucine or humic acids binding agent and carboxymethyl cellulose.
3. the method for the iron ore concentrate of a kind of non-smelting vanadium-titanium magnetite by blast furnace according to claim 1, is characterized in that the bake out temperature of described dryer is 300 DEG C-350 DEG C.
4. the method for the iron ore concentrate of a kind of non-smelting vanadium-titanium magnetite by blast furnace according to claim 2, when it is characterized in that described organic binder bond is the mixture of humic acids binding agent and carboxymethyl cellulose, the weight ratio of humic acids binding agent and carboxymethyl cellulose is 1:2-1:5.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107058727A (en) * | 2017-03-17 | 2017-08-18 | 江苏省冶金设计院有限公司 | A kind of preparation method of gas-based shaft kiln vanadium titano-magnetite acid pellet |
| CN108004397A (en) * | 2016-10-31 | 2018-05-08 | 朝阳金工钒钛科技有限公司 | A kind of production method of ultra-poor vanadium titano-magnetite comprehensive utilization |
| CN109943714A (en) * | 2019-03-06 | 2019-06-28 | 赛能杰高新技术股份有限公司 | The smelting process and smelting system of vanadium titano-magnetite |
| CN110629020A (en) * | 2019-09-30 | 2019-12-31 | 鞍钢股份有限公司 | Pellet iron-based composite binder and preparation and use methods thereof |
| CN111088425A (en) * | 2019-07-12 | 2020-05-01 | 淄博淄翼金属科技有限公司 | Composite alloy capable of replacing ferrovanadium alloy and production process and application thereof |
| CN111100984A (en) * | 2019-06-05 | 2020-05-05 | 武汉科思瑞迪科技有限公司 | Titanium slag treatment method |
| CN115537487A (en) * | 2022-09-20 | 2022-12-30 | 张计辉 | Vanadium titano-magnetite smelting method and smelting system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619371A (en) * | 2008-07-02 | 2010-01-06 | 四川龙蟒集团有限责任公司 | Method for recovering vanadium, titanium and iron from vanadium titanium magnetite |
| CN102690921A (en) * | 2012-06-19 | 2012-09-26 | 北京神雾环境能源科技集团股份有限公司 | Method for comprehensively utilizing vanadium titano-magnetite by melting and separating through reduction-fuel smelting furnace of rotary hearth furnace |
| CN102690944A (en) * | 2012-06-19 | 2012-09-26 | 北京神雾环境能源科技集团股份有限公司 | Method for comprehensively recovering vanadium, titanium and iron from high-vanadium vanadium titano-magnetite |
-
2015
- 2015-02-13 CN CN201510080684.5A patent/CN104651561A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619371A (en) * | 2008-07-02 | 2010-01-06 | 四川龙蟒集团有限责任公司 | Method for recovering vanadium, titanium and iron from vanadium titanium magnetite |
| CN102690921A (en) * | 2012-06-19 | 2012-09-26 | 北京神雾环境能源科技集团股份有限公司 | Method for comprehensively utilizing vanadium titano-magnetite by melting and separating through reduction-fuel smelting furnace of rotary hearth furnace |
| CN102690944A (en) * | 2012-06-19 | 2012-09-26 | 北京神雾环境能源科技集团股份有限公司 | Method for comprehensively recovering vanadium, titanium and iron from high-vanadium vanadium titano-magnetite |
Non-Patent Citations (1)
| Title |
|---|
| 孙广锡等: "《金属材料及热处理》", 31 August 1995, 西北大学出版社 * |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108004397A (en) * | 2016-10-31 | 2018-05-08 | 朝阳金工钒钛科技有限公司 | A kind of production method of ultra-poor vanadium titano-magnetite comprehensive utilization |
| CN107058727A (en) * | 2017-03-17 | 2017-08-18 | 江苏省冶金设计院有限公司 | A kind of preparation method of gas-based shaft kiln vanadium titano-magnetite acid pellet |
| CN109943714A (en) * | 2019-03-06 | 2019-06-28 | 赛能杰高新技术股份有限公司 | The smelting process and smelting system of vanadium titano-magnetite |
| CN111100984A (en) * | 2019-06-05 | 2020-05-05 | 武汉科思瑞迪科技有限公司 | Titanium slag treatment method |
| CN111088425A (en) * | 2019-07-12 | 2020-05-01 | 淄博淄翼金属科技有限公司 | Composite alloy capable of replacing ferrovanadium alloy and production process and application thereof |
| CN110629020A (en) * | 2019-09-30 | 2019-12-31 | 鞍钢股份有限公司 | Pellet iron-based composite binder and preparation and use methods thereof |
| CN115537487A (en) * | 2022-09-20 | 2022-12-30 | 张计辉 | Vanadium titano-magnetite smelting method and smelting system |
| CN115537487B (en) * | 2022-09-20 | 2024-02-27 | 张计辉 | Vanadium titano-magnetite smelting method and smelting system |
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