CN1970803A - Process for smelting ferrovanadium by extraction of vanadium from vanadium-containing errophosphorus - Google Patents
Process for smelting ferrovanadium by extraction of vanadium from vanadium-containing errophosphorus Download PDFInfo
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- CN1970803A CN1970803A CNA2006100324701A CN200610032470A CN1970803A CN 1970803 A CN1970803 A CN 1970803A CN A2006100324701 A CNA2006100324701 A CN A2006100324701A CN 200610032470 A CN200610032470 A CN 200610032470A CN 1970803 A CN1970803 A CN 1970803A
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Abstract
The invention discloses an extracting and smelting method of vanadium through vanadophosphoric ferric, which is characterized by the following: adopting vanadophosphoric ferric and steel-smelting high-vanadophosphoric slag as raw material; extracting vanadium through water immersing method; removing ferric through electric furnace smelting method; recycling vanadium and ferric; smelting the vanadium ferric; recycling further; ripening phosphor slag pie; making phosphorous fertilizer; simplifying manufacturing technique; improving receiving rate at 82-65%; making smelting product satisfy national standard GB4139-87FeV50A.B and GB4139-87 FeV70A.B with eligible rate over 95%.
Description
Technical field
The present invention relates to metallurgical technology field, particularly relate to the technology of utilizing vanadophosphoric ferric extraction smelting of vanadium vanadium iron.
Background technology
We know that in the engineering materials technical field vanadium is that a kind of important alloy does not have element, and vanadium plays deoxidation, defluorination in iron and steel.Vanadium iron is mainly as the alloy addition of making steel.Add after the vanadium iron in the steel, can significantly improve hardness, intensity, fastness to rubbing, the ductility of steel, improve the cutting ability of steel.Vanadium iron is usually used in carbon steel, low alloy steel strength steel, high quality steel, tool steel and the Cast Iron Production.
The smelting ferrovanadium method generally all is by the direct smelting ferrovanadium of vanadium slag, and different manufacturers is according to different vanadium slag component contents, and specific practice also is not quite similar.The technology of commonly extracting vanadium from contain vanadium iron ore deposit or high vanadium ferroalloy slag is to contain vanadium iron fine ore or high vanadium ferroalloy slag sintering, to smelt pig iron containing vanadium earlier and blow into vanadium slag again, vanadium slag to be handled obtaining the Vanadium Pentoxide in FLAKES product again.But because the foreign matter of phosphor element exceeds standard, and the above-mentioned vanadium phosphorus slag that contains mixes, it is very complicated that art breading becomes for vanadophosphoric ferric.
This method that Chinese invention patent application number 200310118475.2 also discloses a kind of " containing vanadium iron concentrate pelletizing extraction vanadium method " is that an amount of sodium salt of adding is made ball in containing the vanadium iron fine ore, roasting becomes the sodium pelletizing.The sodium pelletizing is handled through water logging solubility vanadic acid sodium wherein is dissolved in the water.The sodium vanadate solution that obtains concentrates qualified back and adds the sulfuric acid mixing, stirs, and Vanadium Pentoxide in FLAKES is precipitated out, and makes powdery or dissolves and be cast into the piece of Vanadium finished product through press filtration, oven dry.The same concrete selectivity with aforementioned technology of this method only is fit to the low Leaching of Vanadium from Vanadium slag of impure phosphoric and smelts, and for vanadophosphoric ferric, iron will sinter piece into, and vanadium does not reach smelting temperature again and carries to come out, so this technology is also unworkable.
Summary of the invention
Technical problem of the present invention is the deficiency that remedies existing extraction smelting of vanadium vanadium iron technology, propose a kind of technology of utilizing vanadophosphoric ferric extraction smelting of vanadium vanadium iron, realize iron and contain the vanadium phosphorus slag and separate, vanadium separates with phosphorus, finally smelt into qualified vanadium iron, and comprehensively reclaim iron and phosphorus byproduct.
In order to solve the problems of the technologies described above, basic design of the present invention is: with vanadophosphoric ferric and steel-smelting high-vanadophosphoric slag is main raw material, utilize electric furnace smelting method deironing and water immersing method to smelt vanadium extraction, comprehensive vanadium and the iron of reclaiming, through smelting into vanadium iron, in smelting process,, phosphor slag pie through the chemical industry slaking, is made phosphate fertilizer by further reclaiming.
The technical scheme that realizes the present invention's design is: utilize the technology of vanadophosphoric ferric extraction smelting of vanadium vanadium iron, the steps include:
1, at first vanadophosphoric ferric or steel-smelting high-vanadophosphoric slag and NaCO3 are dropped in the electric furnace in 1～1.5 times of amount that contains the V ratio, be heated to 1600 ℃～2000 ℃, melting was poured in the hot metal ladle after 2 hours, when temperature drops to 1300 ℃～1400 ℃, in melt, be blown into oxygen-rich air, skim the scum silica frost that contains vanadium phosphorus;
2, fused molten iron ingot casting in the hot metal ladle is cooled to the finished product ingot iron;
3, step 1 skim the scum silica frost that contains vanadium phosphorus through cooling, be milled to powder, make pelletizing, roasting 2 hours with addition of the sodium salt powder; The roasting process temperature is controlled at 900 ℃;
4, by the water logging pelletizing solvend in the pelletizing is dissolved into acquisition vanadic acid sodium and sodium phosphate mixing solutions in the water, adds CaO in this solution, go through 24 hours precipitations, through press filtration, the phosphorus slag filter cake is mixed and made into phosphate fertilizer through chemical industry slaking and smelted furnace cinder proportioning again;
5, in the filtrate that step 4 produced, add sulfuric acid, obtain the Vanadium Pentoxide in FLAKES solid sediment; Through press filtration, be melt into the sheet vanadium, deliver to electrosmelting again and produce the vanadium iron finished product.
The present invention compared with prior art creatively smelts process for extracting vanadium to electric furnace smelting method deironing and water immersing method and combines, and broken through two big key problem in technology, the first, can with the iron of vanadophosphoric ferric with contain the vanadium phosphorus slag and thoroughly separate; It two is through hydrometallurgy, separate phosphorus and vanadium up hill and dale, and the Vanadium Pentoxide in FLAKES that obtains reaches produces qualified vanadium iron product, has innovated dephosphorization technique and technology in the vanadium, and has fully utilized, and reaches effect preferably; Technology of the present invention is simple, less investment, the rate of recovery can reach 75～82%, matallurgical products meets the standard GB 4139-87FeV50A.B trade mark and the GB4139-87FeV70A.B trade mark, and qualification rate is greater than 95%.
Description of drawings
Accompanying drawing 1 is technological process of production figure of the present invention.
Embodiment
Describe the present invention below in conjunction with the technical process accompanying drawing in detail with specific embodiment:
The product of present embodiment production is vanadium iron FeV-50-A, the steps include:
1, at first vanadophosphoric ferric (containing V5%) is dropped in the electric furnace in 1.5 times of amounts that contain the V ratio with NaCO3, be heated to 2000 ℃, melting was poured in the hot metal ladle after 2 hours, was blown into oxygen-rich air when temperature drops to 1400 ℃ in melt, skimmed the scum silica frost that contains vanadium phosphorus;
2, fused molten iron ingot casting in the hot metal ladle is cooled to the finished product ingot iron;
3, step 1 skim the scum silica frost that contains vanadium phosphorus through cooling, be milled to powder (fineness reaches 100 orders), make pelletizing, roasting 2 hours with addition of sodium salt powder (yellow soda ash); The roasting process temperature is controlled at 900 ℃;
4, by the water logging pelletizing solvend in the pelletizing is dissolved into acquisition vanadic acid sodium and sodium phosphate mixing solutions in the water, adds CaO in this solution, go through 24 hours precipitations, through press filtration, the phosphorus slag filter cake is mixed and made into phosphate fertilizer through chemical industry slaking and smelted furnace cinder proportioning again;
5, in the filtrate that step 4 produced, add sulfuric acid, obtain the Vanadium Pentoxide in FLAKES solid sediment; Through press filtration, be melt into the sheet vanadium, deliver to electrosmelting again and produce the vanadium iron finished product.
It below is China's vanadium iron standard (GB4139-87)
| The trade mark | Chemical ingredients w/% | ||||||
| V | C | Si | P | S | Al | Mn | |
| Be not less than | Be not more than | ||||||
| FeV-40-A | 40.0 | 0.75 | 2.0 | 0.10 | 0.06 | 1.0 | |
| FeV-40-B | 40.0 | 1.00 | 3.0 | 0.20 | 0.10 | 1.5 | |
| FeV-50--A | 50.0 | 0.40 | 2.0 | 0.07 | 0.04 | 0.5 | 0.5 |
| FeV-50-B | 50.0 | 0.75 | 2.5 | 0.10 | 0.05 | 0.8 | 0.5 |
| FeV-75-A | 75.0 | 0.20 | 1.0 | 0.05 | 0.04 | 2.0 | 0.5 |
| FeV-75-B | 75.0 | 0.30 | 2.0 | 0.10 | 0.05 | 3.0 | 0.5 |
Embodiment 2
The product of present embodiment production is vanadium iron FeV-50-B, the steps include:
1, at first vanadophosphoric ferric (containing V10%) is dropped in the electric furnace in the 1 times of amount that contains the V ratio with NaCO3, be heated to 1600 ℃, melting was poured in the hot metal ladle after 2 hours, was blown into oxygen-rich air when temperature drops to 1300 ℃ in melt, skimmed the scum silica frost that contains vanadium phosphorus;
Step 2,3,4,5 is with embodiment 1.
Embodiment 3
The product of present embodiment production is vanadium iron FeV-75-A, the steps include:
1, at first steel-smelting high-vanadophosphoric slag (containing V8%) is dropped in the electric furnace in 1.2 times of amounts that contain the V ratio with NaCO3, be heated to 1900 ℃, melting was poured in the hot metal ladle after 2 hours, was blown into oxygen-rich air when temperature drops to 1380 ℃ in melt, skimmed the scum silica frost that contains vanadium phosphorus;
Step 2,3,4,5 is with embodiment 1.
Claims (1)
1, a kind of technology of vanadophosphoric ferric extraction smelting of vanadium vanadium iron, with vanadophosphoric ferric and steel-smelting high-vanadophosphoric slag is main raw material, utilize electric furnace smelting method deironing and water immersing method to smelt vanadium extraction, comprehensive vanadium and the iron of reclaiming, through smelting into vanadium iron, in smelting process,, phosphor slag pie through the chemical industry slaking, is made phosphate fertilizer by further reclaiming; It is characterized in that employed processing step is:
(1), at first vanadophosphoric ferric or steel-smelting high-vanadophosphoric slag and NaCO3 are dropped in the electric furnace in 1～1.5 times of amount that contains the V ratio, be heated to 1600 ℃～2000 ℃, melting was poured in the hot metal ladle after 2 hours, when temperature drops to 1300 ℃～1400 ℃, in melt, be blown into oxygen-rich air, skim the scum silica frost that contains vanadium phosphorus;
(2), fused molten iron ingot casting in the hot metal ladle is cooled to the finished product ingot iron;
(3), step 1 skimmed contain vanadium phosphorus scum silica frost through cooling, be milled to powder, make pelletizing, roasting 2 hours with addition of the sodium salt powder; The roasting process temperature is controlled at 900 ℃;
(4), by the water logging pelletizing solvend in the pelletizing is dissolved in the water and obtains vanadic acid sodium and sodium phosphate mixing solutions, in this solution, add CaO, go through 24 hours precipitations, through press filtration, the phosphorus slag filter cake is mixed and made into phosphate fertilizer through chemical industry slaking and smelted furnace cinder proportioning again;
(5), in the filtrate that step 4 produced, add sulfuric acid, obtain the Vanadium Pentoxide in FLAKES solid sediment; Through press filtration, be melt into the sheet vanadium, deliver to electrosmelting again and produce the vanadium iron finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100324701A CN100449010C (en) | 2006-10-24 | 2006-10-24 | Process for smelting ferrovanadium by extraction of vanadium from vanadium-containing errophosphorus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100324701A CN100449010C (en) | 2006-10-24 | 2006-10-24 | Process for smelting ferrovanadium by extraction of vanadium from vanadium-containing errophosphorus |
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| Publication Number | Publication Date |
|---|---|
| CN1970803A true CN1970803A (en) | 2007-05-30 |
| CN100449010C CN100449010C (en) | 2009-01-07 |
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| CNB2006100324701A Expired - Fee Related CN100449010C (en) | 2006-10-24 | 2006-10-24 | Process for smelting ferrovanadium by extraction of vanadium from vanadium-containing errophosphorus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101684525B (en) * | 2009-08-12 | 2011-01-19 | 虹京环保有限公司 | Method for extracting vanadium from vanadium-containing ferrophosphor |
| CN102153373A (en) * | 2011-04-12 | 2011-08-17 | 郴州市金龙铁合金有限公司 | Process for producing calcium superphosphate |
| CN103614564A (en) * | 2013-11-01 | 2014-03-05 | 西安建筑科技大学 | Method for continuously smelting vanadium-containing ferrophosphorous |
| CN104120208A (en) * | 2014-08-11 | 2014-10-29 | 湖南创大钒钨有限公司 | Special blast smelting furnace for vanadium-containing ferrophosphorus and method for extracting vanadium by smelting raw materials by wind energy |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3259455A (en) * | 1962-05-09 | 1966-07-05 | Monsanto Co | Process for recovery of v-values from ferrophosphorus |
| US3792150A (en) * | 1972-03-10 | 1974-02-12 | Kerr Mc Gee Chem Corp | Method of roasting vanadium bearing materials |
| CN1028300C (en) * | 1992-08-05 | 1995-04-26 | 北京科技大学 | Method for extracting V2O5 from vanadium slag |
| CN1101947A (en) * | 1993-10-19 | 1995-04-26 | 冶金工业部重庆钢铁设计研究院 | Method for recovering Fe-and V-slag from molten Fe containing V |
| CN1629326A (en) * | 2003-12-18 | 2005-06-22 | 王洪东 | Process for extracting vanadium from vanadium-containing iron ore concentrate pellets |
| CN1824607A (en) * | 2005-02-22 | 2006-08-30 | 攀枝花市桃园钒制品有限公司 | Vanadium extraction technology of high aluminium slag |
| CN100357470C (en) * | 2005-09-27 | 2007-12-26 | 梅卫东 | Method for preparing ferro-titantium, steel and ferrovanadium from vanadium-titantium iron headings |
-
2006
- 2006-10-24 CN CNB2006100324701A patent/CN100449010C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101684525B (en) * | 2009-08-12 | 2011-01-19 | 虹京环保有限公司 | Method for extracting vanadium from vanadium-containing ferrophosphor |
| CN102153373A (en) * | 2011-04-12 | 2011-08-17 | 郴州市金龙铁合金有限公司 | Process for producing calcium superphosphate |
| CN103614564A (en) * | 2013-11-01 | 2014-03-05 | 西安建筑科技大学 | Method for continuously smelting vanadium-containing ferrophosphorous |
| CN104120208A (en) * | 2014-08-11 | 2014-10-29 | 湖南创大钒钨有限公司 | Special blast smelting furnace for vanadium-containing ferrophosphorus and method for extracting vanadium by smelting raw materials by wind energy |
| CN104120208B (en) * | 2014-08-11 | 2016-01-20 | 湖南创大钒钨有限公司 | The special wind smelting furnace of a kind of vanadophosphoric ferric and with the method for wind energy melt raw material vanadium extraction |
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| CN100449010C (en) | 2009-01-07 |
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Granted publication date: 20090107 Termination date: 20171024 |