CN1138864C - V2O3 electro-aluminothermic process for semelting FeV50 - Google Patents
V2O3 electro-aluminothermic process for semelting FeV50 Download PDFInfo
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- CN1138864C CN1138864C CNB001161083A CN00116108A CN1138864C CN 1138864 C CN1138864 C CN 1138864C CN B001161083 A CNB001161083 A CN B001161083A CN 00116108 A CN00116108 A CN 00116108A CN 1138864 C CN1138864 C CN 1138864C
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Abstract
The present invention belongs to the technical field of vanadium metallurgy. V2O3, aluminium powder, iron particles and lime are used as raw materials. The present invention comprises the technological process that firstly, the V2O3, the aluminium powder, the iron particles and the lime are mixed and put in an electric furnace for smelting; secondly, the smelted alloy mixture is discharged from the electric furnace, slag is separated from the smelted alloy mixture, and then, the smelted alloy mixture is quenched with water; finally, iron forging, crushing, sieving and packaging are carried out. The FeV50 smelting technique of the present invention greatly reduces the product cost; the technological process is relatively simple; the recovery rate of finished product vanadium reaches more than 94.5%, and the contents of V, C, Si , P, S, Al and Mn meet the requirement of the technical standard. The present invention has the advantages of low technological power consumption, high alloy yield by a single electric furnace, good surface quality, good crystallization condition and little slag.
Description
The invention belongs to the vanadium metallurgical technology field, be specifically related to V
2O
3Electro-aluminothermic process is smelted FeV
50Technology.
Vanadium iron is a kind of important alloy addition, and its smelting process has carbothermy, silicothermic process and thermite process, and the carbothermy cost is lower, but product carbon containing height, many steel grades can't use; Though the silicothermic process cost is low, be difficult to production higher-grade vanadium iron; Thermite process is mainly V
2O
5Produce FeV with aluminium and ferric oxide generation thermite reaction
50The vanadium iron of energy production higher-grade, little carbon, but exist the reaction thermal value excessive, complex process, consumption aluminium is many, the defective that cost is higher.
The object of the present invention is to provide a kind of technology simple, cost is lower, and the product carbon content is low, the V that vanadium recovery is high
2O
3Electro-aluminothermic process is smelted FeV
50Technology.
V of the present invention
2O
3Electro-aluminothermic process is smelted FeV
50Technology, its raw material is by V
2O
3, aluminium powder, abrasive grit and lime consists of, wherein the aluminium powder amount of allocating into is (108%-112%) * V
2O
3The amount of allocating into * (1-V
2O
3In full content of vanadium) * 1.125, the abrasive grit amount of allocating into is (100%-105%) * 0.82*0.95*V
2O
3The amount of allocating into * V
2O
3In full content of vanadium, CaO content accounts for 18-22% to the lime amount of allocating in the slag in order to make; The V of raw material
2O
3In full content of vanadium be less than or equal to 0.05%, P content more than or equal to 63%, C content and be less than or equal to 0.03%, S content and be less than or equal to 0.03%, K
2O and Na
2The content sum of O is less than or equal to 1.5%, and bulk density is more than or equal to 1.0g/cm
3Al content is less than or equal to 0.2%, Si content more than or equal to 99.22%, Fe content and is less than or equal to 0.13%, Cu content and is less than or equal to 0.01% in the aluminium powder; The abrasive grit granularity is the 3-25 millimeter; CaO content is less than or equal to 5%, SiO more than or equal to 85%, MgO content in the lime
2Content is less than or equal to 3.5%, P content and is less than or equal to 0.03%, S content and is less than or equal to 0.15%.
Technological process is with V
2O
3, aluminium powder, abrasive grit and lime carries out batch mixing, in electric furnace, add the mixed furnace charge of part and make bed material, again at its shop, surface small amount of Fe V
50The striking material, electrode falls then, with the lowest power starting the arc of switching on, treat that bed material reacts completely and forms the molten bath after, add furnace charge again while switching on, current control is at 2-8KA, feed rate is directly proportional with the reaction severe degree, adds refining lime at last, continues the energising cast of ingot mould can being come out of the stove in 25 minutes, form removal was carried out shrend with alloy after ingot mould cooling was isolated slag in 12 hours, carried out break-iron, fragmentation, screening, packing at last and handled and promptly obtain finished product.
FeV of the present invention
50Smelting process uses the low oxide V of vanadium
2O
3Make raw material, can reduce the reaction caloric value, greatly reduce the consumption of expensive reducing agent aluminium, thereby greatly reduced product cost, technical process is relatively simple, and V
2O
3More easily produce, character is relatively stable, is suitable for the vanadium iron smelting process.The finished product vanadium recovery has reached more than 94.5%, and the content of V, C, Si, P, S, Al, Mn has reached the technological standard requirement.The technology power consumption is low, single stove alloy output height, and surface quality and crystalline condition are good, and the quantity of slag is few, operates simple and easyly, is easy to grasp.
Accompanying drawing is V of the present invention
2O
3Electro-aluminothermic process is smelted FeV
50Process flow sheet.
Embodiment:
Referring to accompanying drawing, raw material comprises V
2O
3, aluminium powder, abrasive grit and lime, wherein the aluminium powder amount of allocating into is (108%-112%) * V
2O
3The amount of allocating into * (1-V
2O
3In full content of vanadium) * 1.125, the abrasive grit amount of allocating into is (100%-105%) * 0.82*0.95*V
2O
3The amount of allocating into * V
2O
3In full content of vanadium, CaO content accounts for 18-22% to the lime amount of allocating in the slag in order to make; And V
2O
3In full content of vanadium be less than or equal to 0.05%, P content more than or equal to 63%, C content and be less than or equal to 0.03%, S content and be less than or equal to 0.03%, K
2O and Na
2The content sum of O is less than or equal to 1.5%, and bulk density is more than or equal to 1.0g/cm
3Al content is less than or equal to 0.2%, Si content more than or equal to 99.22%, Fe content and is less than or equal to 0.13%, Cu content and is less than or equal to 0.01% in the aluminium powder; The abrasive grit granularity is the 3-25 millimeter; CaO content is less than or equal to 5%, SiO more than or equal to 85%, MgO content in the lime
2Content is less than or equal to 3.5%, P content and is less than or equal to 0.03%, S content and is less than or equal to 0.15%.
Technological process is with V
2O
3, aluminium powder, abrasive grit and lime mixes, prepares burden, mixing time is 8 minutes, adds the mixed furnace charge of part then and make bed material in electric furnace, again at its shop, surface small amount of Fe V
50The striking material, electrode falls then, with the lowest power starting the arc of switching on, after treating that bed material reacts completely and forms the molten bath, add furnace charge again while switching on, current control is at 2-8KA, feed rate is directly proportional with the reaction severe degree, add refining lime at last, continue energising 25 minutes, after the furnace charge reaction is finished slag being come out of the stove with alloy is poured in the ingot mould, alloy promptly is deposited under the slag, ingot mould cooling was isolated slag and form removal after 12 hours, and alloy is carried out shrend, carried out break-iron, fragmentation, screening, packing at last and handled and promptly obtain finished product.
Below be four and smelt example: example 1:
Example 2:
Example 3:
Example 4:
| Jar number | Charge composition (Kg) | |||||||||||||||||
| V 2O 3 | Aluminium powder | Abrasive grit | Lime | FeV 50 | Regenerant | Full vanadium C P S (%) | ||||||||||||
| 092 | 800 | 360 | 422 | 200 | 140 | 63.8 0.01 0.04 0.01 | ||||||||||||
| 085 | 800 | 362 | 420 | 200 | 140 | 63.7 0.01 0.04 0.01 | ||||||||||||
| Striking | 100 | Mixing time 8 minutes/jar | ||||||||||||||||
| Refining | 60 | |||||||||||||||||
| Add up to | 1600 | 722 | 842 | 460 | 100 | 280 | ||||||||||||
| Secondary voltage (V) | Flame current (A) | Delivery rate (Kg/ branch) | The feed time (branch) | Conduction time (branch) | ||||||||||||||
| 135 | 2000-7000 | 54-225 | 28 | 65 | ||||||||||||||
| Finished product (Kg) | V | C | Si | P | S | Al | Mn | Vanadium recovery (%) | ||||||||||
| 54.8 | 0.32 | 0.7 | 0.05 | 0.02 | 0.2 | 0.45 | 95.55 | |||||||||||
| Jar number | Charge composition (Kg) | ||||||
| V 2O 3 | Aluminium powder | Abrasive grit | Lime | FeV 50 | Regenerant | Full vanadium C P S (%) | |
| 111 | 800 | 363 | 425 | 200 | 140 | 63.6 0.01 0.06 0.02 | |
| 072 | 800 | 357 | 417 | 200 | 140 | 64.0 0.01 0.04 0.01 | |
| Striking | 100 | Mixing time 8 minutes/jar | |||||
| Refining | 60 | ||||||
| Add up to | 1600 | 720 | 842 | 460 | 100 | 280 | |
| Secondary voltage (V) | Flame current (A) | Delivery rate (Kg/ branch) | The feed time (branch) | Conduction time (branch) | |||||||
| 135 | 3000-8000 | 78-201 | 34 | 68 | |||||||
| Finished product (Kg) | V | C | Si | P | S | Al | Mn | Vanadium recovery (%) | |||
| 55.5 | 0.40 | 0.7 | 0.06 | 0.04 | 0.2 | 0.47 | 94.47 | ||||
| Jar number | Charge composition (Kg) | ||||||||||||||||
| V 2O 3 | Aluminium powder | Abrasive grit | Lime | FeV 50 | Regenerant | Full vanadium C P S (%) | |||||||||||
| 070 | 800 | 350 | 200 | 180 | 140 | 64.5 0.01 0.01 0.03 | |||||||||||
| 040 | 800 | 358 | 200 | 180 | 140 | 64.1 0.01 0.01 0.03 | |||||||||||
| Striking | 100 | Mixing time 8 minutes/jar | |||||||||||||||
| Refining | 400 | 60 | |||||||||||||||
| Add up to | 1600 | 708 | 800 | 420 | 100 | 280 | |||||||||||
| Secondary voltage (V) | Flame current (A) | Delivery rate (Kg/ branch) | The feed time (branch) | Conduction time (branch) | |||||||||||||
| 135 | 3000-8000 | 72-204 | 30 | 75 | |||||||||||||
| Finished product (Kg) | V | C | Si | P | S | Al | Mn | Vanadium recovery (%) | |||||||||
| 56.0 | 0.28 | 0.6 | 0.04 | 0.04 | 0.3 | 0.40 | 94.62 | ||||||||||
| Jar number | Charge composition (Kg) | |||||||||||||||||
| V 2O 3 | Aluminium powder | Abrasive grit | Lime | FeV 50 | Regenerant | Full vanadium C P S (%) | ||||||||||||
| 094 | 800 | 360 | 200 | 180 | 140 | 63.6 0.05 0.01 0.03 | ||||||||||||
| 028 | 800 | 356 | 190 | 180 | 140 | 63.9 0.05 0.01 0.03 | ||||||||||||
| Striking | 60 | Mixing time 8 minutes/jar | ||||||||||||||||
| Refining | 400 | 60 | ||||||||||||||||
| Add up to | 1600 | 716 | 790 | 420 | 60 | 280 | ||||||||||||
| Secondary voltage (V) | Flame current (A) | Delivery rate (Kg/ branch) | The feed time (branch) | Conduction time (branch) | ||||||||||||||
| 135 | 3000-8000 | 69-162 | 34 | 85 | ||||||||||||||
| Finished product (Kg) | V | C | Si | P | S | Al | Mn | Vanadium recovery (%) | ||||||||||
| 57.3 | 0.40 | 0.7 | 0.05 | 0.03 | 0.2 | 0.43 | 94.73 | |||||||||||
Claims (1)
1.V
2O
3Electro-aluminothermic process is smelted FeV
50Technology is characterized in that: raw material is by V
2O
3, aluminium powder, abrasive grit and lime consists of, wherein the aluminium powder amount of allocating into is (108%-112%) * V
2O
3The amount of allocating into * (1-V
2O
3In full content of vanadium) * 1.125, the abrasive grit amount of allocating into is (100%-105%) * 0.82*0.95*V
2O
3The amount of allocating into * V
2O
3In full content of vanadium, CaO content accounts for 18-22% to the lime amount of allocating in the slag in order to make; The V of raw material
2O
3In full content of vanadium be less than or equal to 0.05%, P content more than or equal to 63%, C content and be less than or equal to 0.03%, S content and be less than or equal to 0.03%, K
2O and Na
2The content sum of O is less than or equal to 1.5%, and bulk density is more than or equal to 1.0g/cm
3Al content is less than or equal to 0.2%, Si content more than or equal to 99.22%, Fe content and is less than or equal to 0.13%, Cu content and is less than or equal to 0.01% in the aluminium powder; The abrasive grit granularity is the 3-25 millimeter; CaO content is less than or equal to 5%, SiO more than or equal to 85%, MgO content in the lime
2Content is less than or equal to 3.5%, P content and is less than or equal to 0.03%, S content and is less than or equal to 0.15%; Technical process is with V
2O
3, aluminium powder, abrasive grit and lime carries out batch mixing, adds the mixed furnace charge of part in the electric furnace to make bed material, spreads a small amount of FeV on its surface again
50The striking material, electrode falls then, with the lowest power starting the arc of switching on, treat that bed material reacts completely and forms the molten bath after, add again furnace charge while switching on, Current Control is at 2-8KA, charging rate is directly proportional with the reaction severe degree, adds at last refining lime, continues the energising cast of ingot mould can being come out of the stove in 25 minutes, form removal was carried out shrend with alloy after ingot mould cooling was isolated slag in 12 hours, carried out at last break-iron, fragmentation, screening, packing and processed and namely obtain finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001161083A CN1138864C (en) | 2000-09-21 | 2000-09-21 | V2O3 electro-aluminothermic process for semelting FeV50 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001161083A CN1138864C (en) | 2000-09-21 | 2000-09-21 | V2O3 electro-aluminothermic process for semelting FeV50 |
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| Publication Number | Publication Date |
|---|---|
| CN1343795A CN1343795A (en) | 2002-04-10 |
| CN1138864C true CN1138864C (en) | 2004-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001161083A Expired - Lifetime CN1138864C (en) | 2000-09-21 | 2000-09-21 | V2O3 electro-aluminothermic process for semelting FeV50 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101724751B (en) * | 2009-12-29 | 2011-06-08 | 四川省川威集团有限公司 | Method for smelting high vanadium ferrovanadium |
| CN101962727B (en) * | 2010-11-12 | 2013-01-02 | 攀钢集团钢铁钒钛股份有限公司 | Method for preparing sigma-phase FeV50 |
| CN102586637B (en) * | 2012-03-23 | 2014-08-06 | 宁夏东方钽业股份有限公司 | Method for manufacturing multi-component niobium alloy cast ingot |
| CN103397208B (en) * | 2013-07-11 | 2015-04-29 | 攀钢集团攀枝花钢铁研究院有限公司 | Process for smelting ferro-vanadium through electro-aluminothermic method |
| CN105018828B (en) * | 2015-08-13 | 2017-09-08 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of preparation method of vanadium iron |
| CN110042238B (en) * | 2019-04-29 | 2021-04-27 | 攀钢集团攀枝花钢铁研究院有限公司 | Production method of high-quality FeV50 alloy |
| CN113265577A (en) * | 2021-04-20 | 2021-08-17 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for preparing FeV50 alloy from waste iron materials in vanadium extraction from vanadium slag |
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2000
- 2000-09-21 CN CNB001161083A patent/CN1138864C/en not_active Expired - Lifetime
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| CN1343795A (en) | 2002-04-10 |
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