CN104694810B - Method for preparing ferrotitanium alloy from ilmenite - Google Patents
Method for preparing ferrotitanium alloy from ilmenite Download PDFInfo
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- CN104694810B CN104694810B CN201510063532.4A CN201510063532A CN104694810B CN 104694810 B CN104694810 B CN 104694810B CN 201510063532 A CN201510063532 A CN 201510063532A CN 104694810 B CN104694810 B CN 104694810B
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- Prior art keywords
- ilmenite
- reduction
- titanium
- preheating
- ferro
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- YDZQQRWRVYGNER-UHFFFAOYSA-N iron;titanium;trihydrate Chemical compound O.O.O.[Ti].[Fe] YDZQQRWRVYGNER-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 229910001200 Ferrotitanium Inorganic materials 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 24
- 229910045601 alloy Inorganic materials 0.000 title abstract description 7
- 239000000956 alloy Substances 0.000 title abstract description 7
- 238000003723 Smelting Methods 0.000 claims abstract description 11
- 238000000926 separation method Methods 0.000 claims abstract description 8
- 239000003034 coal gas Substances 0.000 claims abstract description 7
- 238000002844 melting Methods 0.000 claims abstract description 7
- 230000008018 melting Effects 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 6
- 239000002893 slag Substances 0.000 claims abstract description 6
- 238000006722 reduction reaction Methods 0.000 claims description 44
- 239000012530 fluid Substances 0.000 claims description 16
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 7
- 239000010936 titanium Substances 0.000 claims description 7
- 229910052719 titanium Inorganic materials 0.000 claims description 7
- 229910001021 Ferroalloy Inorganic materials 0.000 claims description 6
- 238000005272 metallurgy Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 238000005188 flotation Methods 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 238000007885 magnetic separation Methods 0.000 claims description 4
- 238000011282 treatment Methods 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910001234 light alloy Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a method for preparing ferrotitanium alloy from ilmenite. The method comprises the following steps: (1) drying ilmenite until the moisture content is less than 5%; (2) grinding ilmenite until the particle size is less than 5mm; (3) preheating: preheating ground ilmenite in a fluidized bed roasting furnace at 900-1000 DEG C for 30-50 minutes; (4) carrying out fluidized bed reduction: carrying out selective reduction on preheated ilmenite in a reduction fluidized bed at 800-1000 DEG C by virtue of coal gas for 60-80 minutes; (5) grinding and separating: grinding reduced ilmenite to be smaller than 100 meshes, and carrying out physical separation, so as to obtain powdery ferrotitanium alloy and slag; (6) smelting: smelting the powdery ferrotitanium alloy at 1350-1600 DEG C for 1-2 hours, so as to prepare block-shaped ferrotitanium alloy. According to the method, ilmenite is reduced by virtue of coal gas, the reaction temperature, the energy consumption and the production cost are low, and the prepared ferrotitanium alloy has high melting point and density and good strength, tenacity, ductility and wear resistance.
Description
Technical field
The present invention relates to technical field of iron alloy production, more particularly, to a kind of side preparing ferro-titanium using ilmenite
Method.
Background technology
Ferro-titanium, is a kind of light-alloy of high intensity, has a wide range of applications in every respect, is to produce circular chain steel, anchor
Chain steel, make the important source material of hull steel, Stainless Steel, welding rod and electronics, war products etc..Add as deoxidier, alloy
Agent, the deoxidizing capacity in process for making is significantly larger than silicon, manganese, and can reduce ingotism, improves ingot quality, improves and receives
Rate, can increase intensity, corrosion resistance and the stability of steel simultaneously；For high in stainless steel, tool steel, cast iron can be improved.
The traditional preparation methods of ferro-titanium, one is with reducing agent silicon, aluminium reducing titanium oxide and ferriferous oxide, and this method is prepared
Ferro-titanium in oxygen content is higher, reduction agent content is higher in product, and reducing agent high cost, indirectly increased and produce into
This；Two is to be enlightened by electro-deoxidation technique, adopts graphite to take off in molten salt system for anode and with the oxide of titanium and iron for negative electrode
Oxygen prepares ferro-titanium, and this method deoxidation is not thorough and current efficiency is low, high cost.
Content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, provides a kind of side preparing ferro-titanium using ilmenite
Method, produces ferro-titanium using gas reduction ilmenite, using gas-based reduction, reaction temperature is low, far below blast furnace process or electric furnace
The temperature of method, reducing energy consumption, reduce production cost, shortened process, the ferro-titanium fusing point of preparation and density height, and by force
Degree, toughness, ductility and abrasive resistance are good.
The present invention adopts the following technical scheme that to achieve these goals
A kind of method preparing ferro-titanium using ilmenite, comprises the following steps:
(1) drying of ilmenite: ilmenite is dried, controls moisture moisture content to be less than 5%；
(2) crush: dried ilmenite is carried out being crushed to granularity less than 5mm；
(3) preheat: the ilmenite that step (2) is crushed is preheated in fluidized-solids roaster, preheating temperature is 900-
1000 DEG C, preheating time is 30-50 minute；
(4) fluid bed reduction: the ilmenite after preheating is transported in reduction fluid bed and carries out selective reduction, reduction stream
The reduction reaction temperature changing bed is 800-1000 DEG C, using coal gas, ilmenite is reduced, reduction is anti-in reduction fluid bed
The time answered is 60-80 minute；
(5) crush and separate: the ilmenite after reduction is crushed to less than 100 mesh, then carries out physical separation, obtain powder
Shape ferro-titanium and slag；
(6) melting: block ferro-titanium is prepared in Powdered Titanium ferroalloy metallurgy, smelting temperature is 1350-1600 DEG C, melting
Time is 1-2 hour.
Physical separation described in step (5) is gravity treatment, flotation or magnetic separation.
Compared with the prior art, beneficial effects of the present invention are as follows:
The method that ferro-titanium prepared by the utilization ilmenite of the present invention, produces ferro-titanium using gas reduction ilmenite,
Using gas-based reduction, reaction temperature is low, far below the temperature of blast furnace process or electric furnace process, reducing energy consumption, reduces production cost, shortens
Technological process, the ferro-titanium fusing point of preparation and density are high, and intensity, toughness, ductility and abrasive resistance are good.
Specific embodiment
The present invention is further illustrated with reference to embodiments, but the present invention is not limited only to these embodiments, not
On the premise of departing from present inventive concept, any improvement made is within the scope of the present invention.
Embodiment 1:
A kind of method preparing ferro-titanium using ilmenite, comprises the following steps:
(1) drying of ilmenite: ilmenite is dried, controls moisture moisture content to be less than 5%；
(2) crush: dried ilmenite is carried out being crushed to granularity less than 5mm；
(3) preheat: the ilmenite that step (2) is crushed is preheated in fluidized-solids roaster, preheating temperature is 900
DEG C, preheating time is 50 minutes；
(4) fluid bed reduction: the ilmenite after preheating is transported in reduction fluid bed and carries out selective reduction, reduction stream
Change bed reduction reaction temperature be 800 DEG C, reduction fluid bed in using coal gas, ilmenite is reduced, reduction reaction when
Between be 80 minutes；
(5) crush and separate: the ilmenite after reduction is crushed to less than 100 mesh, then carries out Gravity separation, obtain powder
Shape ferro-titanium and slag；
(6) melting: block ferro-titanium is prepared in Powdered Titanium ferroalloy metallurgy, smelting temperature is 1350 DEG C, smelting time
For 2 hours.
Physical separation described in step (5) is gravity treatment, flotation or magnetic separation.
Embodiment 2:
A kind of method preparing ferro-titanium using ilmenite, comprises the following steps:
(1) drying of ilmenite: ilmenite is dried, controls moisture moisture content to be less than 5%；
(2) crush: dried ilmenite is carried out being crushed to granularity less than 5mm；
(3) preheat: the ilmenite that step (2) is crushed is preheated in fluidized-solids roaster, preheating temperature is 1000
DEG C, preheating time is 30 minutes；
(4) fluid bed reduction: the ilmenite after preheating is transported in reduction fluid bed and carries out selective reduction, reduction stream
Change bed reduction reaction temperature be 800 DEG C, reduction fluid bed in using coal gas, ilmenite is reduced, reduction reaction when
Between be 60 minutes；
(5) crush and separate: the ilmenite after reduction is crushed to less than 100 mesh, then carries out FLOTATION SEPARATION, obtain powder
Shape ferro-titanium and slag；
(6) melting: block ferro-titanium is prepared in Powdered Titanium ferroalloy metallurgy, smelting temperature is 1600 DEG C, smelting time
For 1 hour.
Embodiment 3:
A kind of method preparing ferro-titanium using ilmenite, comprises the following steps:
(1) drying of ilmenite: ilmenite is dried, controls moisture moisture content to be less than 5%；
(2) crush: dried ilmenite is carried out being crushed to granularity less than 5mm；
(3) preheat: the ilmenite that step (2) is crushed is preheated in fluidized-solids roaster, preheating temperature is 1000
DEG C, preheating time is 40 minutes；
(4) fluid bed reduction: the ilmenite after preheating is transported in reduction fluid bed and carries out selective reduction, reduction stream
Change bed reduction reaction temperature be 900 DEG C, reduction fluid bed in using coal gas, ilmenite is reduced, reduction reaction when
Between be 70 minutes；
(5) crush and separate: the ilmenite after reduction is crushed to less than 100 mesh, then carries out magnetic separation and separate, obtain powder
Shape ferro-titanium and slag；
(6) melting: block ferro-titanium is prepared in Powdered Titanium ferroalloy metallurgy, smelting temperature is 1500 DEG C, smelting time
For 1.5 hours.
Claims (2)
1. a kind of using ilmenite prepare ferro-titanium method it is characterised in that: comprise the following steps:
(1) drying of ilmenite: ilmenite is dried, controls moisture moisture content to be less than 5%；
(2) crush: dried ilmenite is carried out being crushed to granularity less than 5mm；
(3) preheat: the ilmenite that step (2) is crushed is preheated in fluidized-solids roaster, preheating temperature is 900-1000
DEG C, preheating time is 30-50 minute；
(4) fluid bed reduction: the ilmenite after preheating is transported in reduction fluid bed and carries out selective reduction, reduce fluid bed
Reduction reaction temperature be 800-1000 DEG C, reduction fluid bed in using coal gas, ilmenite is reduced, reduction reaction
Time is 60-80 minute；
(5) crush and separate: the ilmenite after reduction is crushed to less than 100 mesh, then carries out physical separation, obtain Powdered Titanium
Ferroalloy and slag；
(6) melting: block ferro-titanium is prepared in Powdered Titanium ferroalloy metallurgy, smelting temperature is 1350-1600 DEG C, smelting time
For 1-2 hour.
2. according to claim 1 using ilmenite prepare ferro-titanium method it is characterised in that: institute in step (5)
The physical separation stated is gravity treatment, flotation or magnetic separation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510063532.4A CN104694810B (en) | 2015-02-06 | 2015-02-06 | Method for preparing ferrotitanium alloy from ilmenite |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510063532.4A CN104694810B (en) | 2015-02-06 | 2015-02-06 | Method for preparing ferrotitanium alloy from ilmenite |
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| Publication Number | Publication Date |
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| CN104694810A CN104694810A (en) | 2015-06-10 |
| CN104694810B true CN104694810B (en) | 2017-01-25 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107739849B (en) * | 2017-11-05 | 2019-10-25 | 东莞材料基因高等理工研究院 | A kind of production technology of titanium ferroally powder |
| CN109014234A (en) * | 2018-09-06 | 2018-12-18 | 攀钢集团攀枝花钢铁研究院有限公司 | The preparation method of micro-size fraction iron powder |
| CN110055366A (en) * | 2019-04-11 | 2019-07-26 | 东北大学 | A method of ferro-titanium is directly smelted using ilmenite |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4097574A (en) * | 1976-06-16 | 1978-06-27 | United States Steel Corporation | Process for producing a synthetic rutile from ilmentite |
| CN1733943A (en) * | 2004-08-10 | 2006-02-15 | 孔凡逸 | Method and device for manufacturing reduced iron using microwave fluid bed |
| CN101225483A (en) * | 2007-01-19 | 2008-07-23 | 苏永山 | Ferrotitanium alloy electric furnace smelting method |
| CN101624658A (en) * | 2008-07-10 | 2010-01-13 | 朱作远 | Ferrotitanium concentrated ore direct reduction-magnetic separation deferrization technology |
-
2015
- 2015-02-06 CN CN201510063532.4A patent/CN104694810B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4097574A (en) * | 1976-06-16 | 1978-06-27 | United States Steel Corporation | Process for producing a synthetic rutile from ilmentite |
| CN1733943A (en) * | 2004-08-10 | 2006-02-15 | 孔凡逸 | Method and device for manufacturing reduced iron using microwave fluid bed |
| CN101225483A (en) * | 2007-01-19 | 2008-07-23 | 苏永山 | Ferrotitanium alloy electric furnace smelting method |
| CN101624658A (en) * | 2008-07-10 | 2010-01-13 | 朱作远 | Ferrotitanium concentrated ore direct reduction-magnetic separation deferrization technology |
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| CN104694810A (en) | 2015-06-10 |
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Effective date of registration: 20180620 Address after: 276412 Qin Jia Zhuang village, Yang Zhuang Town, Yishui County, Linyi, Shandong Patentee after: SHANDONG XINGSHENG MINING INDUSTRY Co.,Ltd. Address before: 244199 14a24 14, Tongling big market, lion mountain area, Tongling, Anhui. Patentee before: TONGLING BAIRONG NEW MATERIAL CASTING CO.,LTD. |
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Effective date of registration: 20240329 Address after: 276400 Chang'an Village, Yishui Town, Yishui County, Linyi City, Shandong Province Patentee after: Yishui Hesheng Minerals Processing Co.,Ltd. Country or region after: China Address before: 276412 Qin Jia Zhuang village, Yang Zhuang Town, Yishui County, Linyi, Shandong Patentee before: SHANDONG XINGSHENG MINING INDUSTRY Co.,Ltd. Country or region before: China |