CN1101080A - Method for producing high-titanium iron by thermit process - Google Patents
Method for producing high-titanium iron by thermit process Download PDFInfo
- Publication number
- CN1101080A CN1101080A CN 93111975 CN93111975A CN1101080A CN 1101080 A CN1101080 A CN 1101080A CN 93111975 CN93111975 CN 93111975 CN 93111975 A CN93111975 A CN 93111975A CN 1101080 A CN1101080 A CN 1101080A
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- China
- Prior art keywords
- granularity
- lime
- rutile
- less
- potcrate
- Prior art date
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- Pending
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000010936 titanium Substances 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract description 6
- 229910052742 iron Inorganic materials 0.000 title abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 16
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 14
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 14
- 239000004571 lime Substances 0.000 claims abstract description 14
- VKJKEPKFPUWCAS-UHFFFAOYSA-M potassium chlorate Chemical compound [K+].[O-]Cl(=O)=O VKJKEPKFPUWCAS-UHFFFAOYSA-M 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000003723 Smelting Methods 0.000 claims abstract description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000004411 aluminium Substances 0.000 claims abstract description 7
- 239000002893 slag Substances 0.000 claims abstract description 5
- 239000000376 reactant Substances 0.000 claims abstract description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 claims description 2
- IXQWNVPHFNLUGD-UHFFFAOYSA-N iron titanium Chemical compound [Ti].[Fe] IXQWNVPHFNLUGD-UHFFFAOYSA-N 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 4
- 229910001200 Ferrotitanium Inorganic materials 0.000 abstract 1
- 238000004134 energy conservation Methods 0.000 abstract 1
- 239000008187 granular material Substances 0.000 abstract 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003886 thermite process Methods 0.000 description 2
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 210000004709 eyebrow Anatomy 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a method for producing high-titanium iron by using an aluminothermic process. It is made up by adding potassium chlorate into raw material, and mixing it with rutile, lime and aluminium granules according to a certain weight ratio. At the same time, the bottom of the furnace shell is provided with pits made of high titanium slag. And after smelting, the reactants are insulated for more than 20 hours by using dry lime. The method has simple process, energy conservation and cost reduction, can directly utilize cheap titanium ore to produce high-grade ferrotitanium by simple equipment, and has higher economic benefit and social benefit.
Description
The present invention relates to a kind of method of producing high ferrotianium (Ti 〉=70%) with the aluminium direct-reduction process.It belongs to field of metallurgy.
By retrieval and inquiry, adopt at present both at home and abroad thermite process can only produce ferrotianium low, middle grade.Adopt thermite process such as China Jinzhou, Liaoyang, Jiangyin and high eyebrow ferroalloy works, can only produce that to contain Ti be 30～45% ferrotianium.And the main method of producing high ferrotianium now is a remelting process.It is to be raw material with useless titanium, having under the condition of shielding gas, uses electrosmelting.But this method is cost of equipment costliness, energy consumption height not only, and useless titanium material is difficult for obtaining.It can't be promoted the use of.
The objective of the invention is to avoid above-mentioned weak point of the prior art, and provide a kind of existing smelting equipment of producing low, middle grade ferrotianium that utilizes, the method for coming production higher-grade ferrotianium.Thereby reach the purpose of saving the energy, reducing cost, improving the product made from steel quality.
The objective of the invention is to reach by following measure: it is being on the basis of raw material with rutile, aluminum shot, lime, newly increases Potcrate again as raw material.Ingredients by weight ratio between them is a rutile: aluminum shot: lime: Potcrate=1.0: 0.4～0.5: 0.1～0.2: 0.1～0.2.
The rutile of being allocated in the raw material of the present invention should contain TiO
2＞88%, C＜0.02%, S＜0.03%, Si＜3%, its granularity is 0.1-0.5mm＞85.The aluminum shot quality of being allocated into should meet No. two aluminium ingots in the GB1196-82 standard, and its granularity is 0.1-0.5mm＞85%.The lime of being allocated into should contain CaO＞90%, give birth to burning rate+burning rate＜5%, C＜0.1%, S＜0.02%, and its granularity is less than 1mm.The Potcrate of being allocated into should contain KClO
3＞99.5%, its granularity is less than 1mm.
The present invention needs to make nest with granularity less than 40 purpose titanium slags at furnace bottom in smelting process, and the thickness of nest is 50-100mm.
The present invention should make dry materials and preheating maintain the temperature between 110 ℃-130 ℃ after material is gone into stove, its dry and pre-heating mean employing iron oxide red powder: the igniting of aluminium powder=3: 1 is reacted and is realized.
The present invention should add exsiccant lime rapidly and be incubated in the reactant upper strata after smelting is finished, and its process time is no less than 20 hours.
Accompanying drawing is a process flow diagram of the present invention.
The present invention will now be further detailed embodiment: at first, getting granularity is 0.1-0.5mm, and quality meets the rutile of YB2402-78 primary standard; Getting granularity is 0.1-0.5mm, and quality meets the aluminum shot of GB1196-82 secondary standard; Get granularity less than 1mm, quality meets the lime of YB2404-79 primary standard; Get granularity less than 1mm, its contained KClO
3＞99.5% Potcrate is as raw materials for production.And by rutile: aluminum shot: lime: Potcrate=1.0: 0.45: 0.15: 0.15 weight ratio is prepared burden.Its batching order rutile, lime, aluminum shot, allocate Potcrate at last and carry out batch mixing.Then mixed raw material is packed into and do in the furnace shell that is lined with magnesia brick of nest less than 40 purpose titanium slags by granularity in advance, after compressing, add the priming mixture that fits in 3 parts of iron oxide red powder, the 1 part of aluminium powder reaction of lighting a fire at an upper portion thereof, allow furnace charge drying and remaining between 120 ℃ ± 10 ℃ in advance.The igniting of then carrying out 10-15 minute is smelted.
The chemical reaction equation of its smelting is as follows:
TiO
2+4/3Al＝Ti+2/3Al
2O
3
The thermodynamics formula is as follows:
△GT℃＝-40000+2.9T
After smelting was finished, the upper strata that is added in reactant with exsiccant lime was incubated 20 hours rapidly.Just can pull out furnace shell subsequently, get slag, play iron, again through sandblast, break process, just can obtain high-grade ferrotianium, finishing tough is put in storage.
The present invention has following advantage compared to existing technology: the method technology is simple, save the energy, reduce cost, the existing enterprise that produces low, middle grade ferrotianium is not needed to increase input and acquire equipment, just can directly utilize inexpensive titanium ore, produce the high ferrotianium that contains Ti 〉=20. It not only brings significant economic benefit for enterprise, and the energy satisfying the market is to the demand of high ferrotianium simultaneously.
Claims (5)
1, a kind of is raw material with rutile, aluminum shot, lime, adopt the method for production of high titanium iron by use of aluminothermy, it is characterized in that newly increasing Potcrate again as raw material, the ingredients by weight ratio between these four kinds of raw materials is a rutile: aluminum shot: lime: Potcrate=1.0: 0.4-0.5: 0.1-0.2: 0.1-0.2.
2, the method for the high ferrotianium of production according to claim 1 is characterized in that the rutile of being allocated into should contain TiO
2＞88%, C＜0.02%, S＜0.03%, Si＜3%, its granularity is 0.1-0.5mm＞85%; The aluminum shot quality of being gone into should meet No. two aluminium ingots in the GB1196-82 standard, and its granularity is 0.1-0.5mm＞85%; The lime of being gone into should contain CaO＞90%, give birth to burning rate+burning rate＜5%, C＜0.1%, S＜0.02%, and its granularity is less than 1mm; The Potcrate of being allocated into should contain KClO
3＞99.5%, its granularity is less than 1mm.
3, the method for the high ferrotianium of production according to claim 1 and 2 is characterized in that in smelting process, needs to make nest with granularity less than 40 purpose titanium slags at furnace bottom, and the thickness of nest is 50-100mm.
4, the method for the high ferrotianium of production according to claim 3 is characterized in that should making after material is gone into stove dry materials and preheating to maintain the temperature between 110 ℃-130 ℃, its dry and pre-heating mean employing iron oxide red powder: the igniting of aluminium powder=3: 1 is reacted and is realized.
5, the method for the high ferrotianium of production according to claim 4 is characterized in that after smelting is finished, and should add dry lime rapidly and be incubated in the reactant upper strata, and its process time is no less than 20 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93111975 CN1101080A (en) | 1993-09-28 | 1993-09-28 | Method for producing high-titanium iron by thermit process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93111975 CN1101080A (en) | 1993-09-28 | 1993-09-28 | Method for producing high-titanium iron by thermit process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1101080A true CN1101080A (en) | 1995-04-05 |
Family
ID=4989722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93111975 Pending CN1101080A (en) | 1993-09-28 | 1993-09-28 | Method for producing high-titanium iron by thermit process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1101080A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060820C (en) * | 1997-09-26 | 2001-01-17 | 江苏江南铁合金厂 | Low-silicon Ti-iron and its preparing method |
| CN1323183C (en) * | 2005-04-15 | 2007-06-27 | 李春德 | Method for jpreparing high ferrotitanium in use for smelting steel |
| CN100376701C (en) * | 2006-04-17 | 2008-03-26 | 海南高钛科技股份有限公司 | Method for preparing low-silicon high-titanium ferroalloy employing lower ignition method |
| CN100376694C (en) * | 2006-04-04 | 2008-03-26 | 梅卫东 | Method for preparing ferrotitanium by molten titanium slag |
| CN100404710C (en) * | 2006-04-04 | 2008-07-23 | 海南海峨万州实业公司 | Method for producing high-titanium ferroalloy 70 outside the furnace |
| CN101454467B (en) * | 2006-03-27 | 2014-01-08 | 联邦科学及工业研究组织 | Apparatus and methods for the production of metal compounds |
| CN103509957A (en) * | 2013-10-24 | 2014-01-15 | 攀枝花学院 | Method for producing high ferro-titanium alloy by using titanium slag and titanium concentrate as titanium and iron raw materials |
| CN106834880A (en) * | 2017-02-14 | 2017-06-13 | 东北大学 | A kind of preparation method of ferro-titanium |
| CN107099696A (en) * | 2017-06-13 | 2017-08-29 | 东北大学 | The method for preparing ferro-titanium with wash heat refining is reduced based on aluminothermy self- propagating gradient |
-
1993
- 1993-09-28 CN CN 93111975 patent/CN1101080A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060820C (en) * | 1997-09-26 | 2001-01-17 | 江苏江南铁合金厂 | Low-silicon Ti-iron and its preparing method |
| CN1323183C (en) * | 2005-04-15 | 2007-06-27 | 李春德 | Method for jpreparing high ferrotitanium in use for smelting steel |
| CN101454467B (en) * | 2006-03-27 | 2014-01-08 | 联邦科学及工业研究组织 | Apparatus and methods for the production of metal compounds |
| CN100376694C (en) * | 2006-04-04 | 2008-03-26 | 梅卫东 | Method for preparing ferrotitanium by molten titanium slag |
| CN100404710C (en) * | 2006-04-04 | 2008-07-23 | 海南海峨万州实业公司 | Method for producing high-titanium ferroalloy 70 outside the furnace |
| CN100376701C (en) * | 2006-04-17 | 2008-03-26 | 海南高钛科技股份有限公司 | Method for preparing low-silicon high-titanium ferroalloy employing lower ignition method |
| CN103509957A (en) * | 2013-10-24 | 2014-01-15 | 攀枝花学院 | Method for producing high ferro-titanium alloy by using titanium slag and titanium concentrate as titanium and iron raw materials |
| CN103509957B (en) * | 2013-10-24 | 2016-02-10 | 攀枝花学院 | With titanium slag and ilmenite concentrate be titanium, iron material produces the method for high ferrotitanium alloy |
| CN106834880A (en) * | 2017-02-14 | 2017-06-13 | 东北大学 | A kind of preparation method of ferro-titanium |
| CN107099696A (en) * | 2017-06-13 | 2017-08-29 | 东北大学 | The method for preparing ferro-titanium with wash heat refining is reduced based on aluminothermy self- propagating gradient |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |