CN102094096A - Method for preparing ferrosilicon-titanium with hot titanium-containing blast furnace slag - Google Patents
Method for preparing ferrosilicon-titanium with hot titanium-containing blast furnace slag Download PDFInfo
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Abstract
The invention relates to a method for preparing ferrosilicon-titanium with hot titanium-containing blast furnace slag. The technical scheme of the invention is as follows: adding 0-20wt% of carbon, 0-30wt% of aluminum, 0-10wt% of iron, 0-10wt% of silicon and 0-30wt% of magnesium in hot titanium-containing blast furnace slag containing 5-30wt% of TiO2, performing melting and thermal reduction under the heating and heat insulation condition to prepare the ferrosilicon-titanium alloy, wherein the contents of carbon, aluminum and magnesium in the additional material of the hot titanium-containing blast furnace slag are not zero at the same time; and the hot titanium-containing blast furnace slag is prepared from vanadium-titanium magnetite used as main raw material through blast-furnace smelting. The method provided by the invention uses hot titanium-containing blast furnace slag as main raw material, fully utilizes the heat of the blast furnace slag and adopts the melting and thermal reduction method to reduce the valuable metal compounds containing titanium, silicon and the like, in titanium-containing blast furnace slag to ferrosilicon-titanium alloy; and the yield of titanium is up to 85-90%, and the TiO2 content in residue can be reduced to about 2%. Compared with the prior art, the energy can be reduced by 30-50%.
Description
Technical field
The invention belongs to preparation ferrosilicon-titanium alloy technical field, relate in particular to a kind of method of utilizing hot titanium-containing blast furnace slag to prepare the ferrosilicon-titanium alloy.
Background technology
Since the sixties in last century, the scientific worker has been used as number of research projects to the comprehensive utilization of titanium-containing blast furnace slag both at home and abroad, from research contents, most research work are carried out around extraction titanium alloy or titanium-containing compound from titanium-containing blast furnace slag, secondly are to utilize Ti-containing slag as material of construction.
Titanium-containing blast furnace slag is by its kind difference, TiO wherein
2Content is also different, and its fluctuation range can reach 5～30%, and titaniferous ore wherein is mainly uhligite, rutile and climbs titandiopside etc., and the tiny disperse shape that is of its titaniferous ore crystallization is distributed in the slag, is difficult to separate.
Utilizing titanium-containing blast furnace slag to prepare titanium alloy is one of possible approach of Ti-containing slag comprehensive utilization of resources.But in the past few decades prepares the various researchs that titanium alloy is carried out around titanium-containing blast furnace slag, all the rate of recovery owing to titanium is low, and cost is too high, and residue reason such as fail to be applied, and is difficult to be applied.The applicant invented " utilizing Ti-containing slag to prepare the method (ZL200510019664.3) of titanium or titanium alloy " in 2005 for this reason.Adopt this method, utilize Ti-containing slag to prepare titanium alloy, can make that the rate of recovery of titanium reaches more than 90% in the Ti-containing slag, the TiO in the residue
2Be down to about 2%, can effectively reduce production costs, the high value added utilization of residue becomes possibility behind the titanium so that carry.
Foregoing invention is in equipment such as plasma heating furnace, direct current electric arc furnace, ac arc furnace cold conditions Ti-containing slag (being mainly titanium-containing blast furnace slag) to be carried out melting heat reduction preparation titanium alloy.The cold conditions titanium-containing blast furnace slag is to be formed through air cooling or water cooling by 1400-1500 ℃ thermal-state blast furnace slag.On the one hand, in the process of cooling, thermal slag and environment carry out a large amount of heat exchanges, and the contained a large amount of heat energy of slag are not utilized effectively, and have caused bigger environmental heat load, are unfavorable for energy-conserving and environment-protective; On the other hand, the cold conditions slag is carried out the melting heat reduction and need to consume a certain amount of electric energy.Therefore, be main raw material with hot titanium-containing blast furnace slag, make full use of its contained heat energy, be aided with other measures and heat and be incubated, produce preparation ferrosilicon-titanium alloy and have crucial meaning for energy-saving and emission-reduction and environment protection.
Summary of the invention
The present invention is intended to overcome the prior art defective, and purpose provides and a kind ofly make full use of heat energy in the hot titanium-containing blast furnace slag, can save a large amount of energy, can improve the recovery rate of titanium in the titanium-containing blast furnace slag and can reduce remaining TiO in the residue
2The hot titanium-containing blast furnace slag that utilizes of content prepares the method for ferrosilicon-titanium alloy.
For achieving the above object, the technical solution adopted in the present invention is: at TiO
2Content is in the hot titanium-containing blast furnace slag of 5～30wt%, outer carbon, 0～30wt% metallic aluminium, the iron of 0～10wt%, the silicon of 0～10wt% and the magnesium of 0～30wt% that adds 0～20%wt, be aided with heating and insulation, carry out the melting heat reduction, make the ferrosilicon-titanium alloy.
In the outer admixture of hot titanium-containing blast furnace slag, carbon, metallic aluminium and magnesium are not zero simultaneously.
In technique scheme: hot titanium-containing blast furnace slag is for the vanadium titano-magnetite being the hot titanium-containing blast furnace slag that main raw material produces through blast-furnace smelting; Heating and insulation or carry out at plasma heating furnace or at direct current electric arc furnace or at ac arc furnace or in resistance furnace.
Owing to adopt technique scheme, the present invention is take hot titanium-containing blast furnace slag as primary raw material, take full advantage of its contained heat energy, being aided with other measures heats and is incubated, by the melting heat reducing process valuable metal such as titanium, silicon compound in the titanium-containing blast furnace slag is reduced to the ferrosilicon-titanium alloy, can improve yield of Titanium in the titanium-containing blast furnace slag, its recovery rate can reach 85～90%, the TiO in the residue
2Content can be down to about 2%.
The present invention is owing to made full use of the heat energy that contains in the thermal-state blast furnace slag; thereby compare with " utilizing Ti-containing slag to prepare the method (ZL200510019664.3) of titanium or titanium alloy " patented technology; but save energy 30～50% has crucial meaning for energy-saving and emission-reduction and environment protection.
Description of drawings
Fig. 1 is the prepared ferrosilicon-titanium alloy backscattered electron image of a kind of preparation method of the present invention;
Fig. 2 is that the A point EDS among Fig. 1 analyzes;
Fig. 3 is that the B point EDS among Fig. 1 analyzes;
Fig. 4 is that the C point EDS among Fig. 1 analyzes.
Embodiment
The described hot titanium-containing blast furnace slag of this embodiment is for being the hot titanium-containing blast furnace slag that main raw material produces through blast-furnace smelting with the vanadium titano-magnetite, and following examples repeat no more.
A kind of method of utilizing hot titanium-containing blast furnace slag to prepare the ferrosilicon-titanium alloy, the composition of the hot titanium-containing blast furnace slag that it adopts is: CaO is 24.62wt%, SiO
2Be 27.97wt%, Al
2O
3Be 13.40wt%, MgO is 7.68wt%, Fe
2O
3Be 3.19wt%, TiO
2Be 20.59wt%, MnO＜1wt%.The carbon, 0～30wt% metallic aluminium, the iron of 0～10wt%, the silicon of 0～10wt% and the magnesium of 0～30wt% that add 0～20%wt at hot titanium-containing blast furnace slag at home and abroad.In the outer admixture of hot titanium-containing blast furnace slag, carbon, metallic aluminium and magnesium are not zero simultaneously, and heating and insulation and carry out the melting heat reduction reaction in plasma heating furnace make the ferrosilicon-titanium alloy.
A kind of method of utilizing hot titanium-containing blast furnace slag to prepare the ferrosilicon-titanium alloy, the composition of the hot titanium-containing blast furnace slag that it adopts is: CaO is 24.62wt%, SiO
2Be 27.97wt%, Al
2O
3Be 13.40wt%, MgO is 7.68wt%, Fe
2O
3Be 3.19wt%, TiO
2Be 20.59wt%, MnO＜1wt%.The carbon, 0～30wt% metallic aluminium, the iron of 0～10wt%, the silicon of 0～10wt% and the magnesium of 0～30wt% that add 0～20%wt at hot titanium-containing blast furnace slag at home and abroad, in the outer admixture of hot titanium-containing blast furnace slag, carbon, metallic aluminium and magnesium are not zero simultaneously, heat tracing and carry out the melting heat reduction reaction in ac arc furnace makes the ferrosilicon-titanium alloy.
Embodiment 3
A kind of method of utilizing hot titanium-containing blast furnace slag to prepare the ferrosilicon-titanium alloy, the composition of the hot titanium-containing blast furnace slag that it adopts is: CaO is 24.62wt%, SiO
2Be 27.97wt%, Al
2O
3Be 13.40wt%, MgO is 7.68wt%, Fe
2O
3Be 3.19wt%, TiO
2Be 20.59wt%, MnO＜1wt%.The carbon, 0～30wt% metallic aluminium, the iron of 0～10wt%, the silicon of 0～10wt% and the magnesium of 0～30wt% that add 0～20%wt at hot titanium-containing blast furnace slag at home and abroad, in the outer admixture of hot titanium-containing blast furnace slag, carbon, metallic aluminium and magnesium are not zero simultaneously, heat tracing and carry out the melting heat reduction reaction in direct current electric arc furnace makes the ferrosilicon-titanium alloy.
Embodiment 4
A kind of method of utilizing hot titanium-containing blast furnace slag to prepare the ferrosilicon-titanium alloy, the composition of the hot titanium-containing blast furnace slag that it adopts is: CaO is 24.62wt%, SiO
2Be 27.97wt%, Al
2O
3Be 13.40wt%, MgO is 7.68wt%, Fe
2O
3Be 3.19wt%, TiO
2Be 20.59wt%, MnO＜1wt%.The carbon, 0～30wt% metallic aluminium, the iron of 0～10wt%, the silicon of 0～10wt% and the magnesium of 0～30wt% that add 0～20%wt at hot titanium-containing blast furnace slag at home and abroad, in the outer admixture of hot titanium-containing blast furnace slag, carbon, metallic aluminium and magnesium are not zero simultaneously, heat tracing and carry out the melting heat reduction reaction in resistance furnace makes the ferrosilicon-titanium alloy.
Embodiment 5
A kind of method of utilizing hot titanium-containing blast furnace slag to prepare the ferrosilicon-titanium alloy, the composition of the hot titanium-containing blast furnace slag that it adopts is: CaO is 32.30wt%, SiO
2Be 26.35wt%, Al
2O
3Be 14.15wt%, MgO is 11.06wt%, Fe
2O
3Be 3.27wt%, TiO
2Be 12.00wt%, MnO＜1wt%.The carbon, 0～30wt% metallic aluminium, the iron of 0～10wt%, the silicon of 0～10wt% and the magnesium of 0～30wt% that add 0～20%wt at hot titanium-containing blast furnace slag at home and abroad, in the outer admixture of hot titanium-containing blast furnace slag, carbon, metallic aluminium and magnesium are not zero simultaneously, heat tracing and carry out the melting heat reduction reaction in plasma heating furnace makes the ferrosilicon-titanium alloy.
Embodiment 6
A kind of method of utilizing hot titanium-containing blast furnace slag to prepare the ferrosilicon-titanium alloy, the composition of the hot titanium-containing blast furnace slag that it adopts is: CaO is 32.30wt%, SiO
2Be 26.35wt%, Al
2O
3Be 14.15wt%, MgO is 11.06wt%, Fe
2O
3Be 3.27wt%, TiO
2Be 12.00wt%, MnO＜1wt%.The carbon, 0～30wt% metallic aluminium, the iron of 0～10wt%, the silicon of 0～10wt% and the magnesium of 0～30wt% that add 0～20%wt at hot titanium-containing blast furnace slag at home and abroad, in the outer admixture of hot titanium-containing blast furnace slag, carbon, metallic aluminium and magnesium are not zero simultaneously, heat tracing and carry out the melting heat reduction reaction in ac arc furnace makes the ferrosilicon-titanium alloy.
Embodiment 7
A kind of method of utilizing hot titanium-containing blast furnace slag to prepare the ferrosilicon-titanium alloy, the composition of the hot titanium-containing blast furnace slag that it adopts is: CaO is 32.30wt%, SiO
2Be 26.35wt%, Al
2O
3Be 14.15wt%, MgO is 11.06wt%, Fe
2O
3Be 3.27wt%, TiO
2Be 12.00wt%, MnO＜1wt%.The carbon, 0～30wt% metallic aluminium, the iron of 0～10wt%, the silicon of 0～10wt% and the magnesium of 0～30wt% that add 0～20%wt at hot titanium-containing blast furnace slag at home and abroad, in the outer admixture of hot titanium-containing blast furnace slag, carbon, metallic aluminium and magnesium are not zero simultaneously, heat tracing and carry out the melting heat reduction reaction in direct current electric arc furnace makes the ferrosilicon-titanium alloy.
Embodiment 8
A kind of method of utilizing hot titanium-containing blast furnace slag to prepare the ferrosilicon-titanium alloy, the composition of the hot titanium-containing blast furnace slag that it adopts is: CaO is 32.30wt%, SiO
2Be 26.35wt%, Al
2O
3Be 14.15wt%, MgO is 11.06wt%, Fe
2O
3Be 3.27wt%, TiO
2Be 12.00wt%, MnO＜1wt%.The carbon, 0～30wt% metallic aluminium, the iron of 0～10wt%, the silicon of 0～10wt% and the magnesium of 0～30wt% that add 0～20%wt at hot titanium-containing blast furnace slag at home and abroad, in the outer admixture of hot titanium-containing blast furnace slag, carbon, metallic aluminium and magnesium are not zero simultaneously, heat tracing and carry out the melting heat reduction reaction in resistance furnace makes the ferrosilicon-titanium alloy.
Embodiment 9
A kind of method of utilizing hot titanium-containing blast furnace slag to prepare the ferrosilicon-titanium alloy, the composition of the hot titanium-containing blast furnace slag that it adopts is: CaO is 32.57wt%, SiO
2Be 28.01wt%, Al
2O
3Be 14.20wt%, MgO is 9.84wt%, Fe
2O
3Be 4.63wt%, TiO
2Be 8.15wt%, MnO＜1wt%.The carbon, 0～30wt% metallic aluminium, the iron of 0～10wt%, the silicon of 0～10wt% and the magnesium of 0～30wt% that add 0～20%wt at hot titanium-containing blast furnace slag at home and abroad, in the outer admixture of hot titanium-containing blast furnace slag, carbon, metallic aluminium and magnesium are not zero simultaneously, heat tracing and carry out the melting heat reduction reaction in plasma heating furnace makes the ferrosilicon-titanium alloy.
Embodiment 10
A kind of method of utilizing hot titanium-containing blast furnace slag to prepare the ferrosilicon-titanium alloy, the composition of the hot titanium-containing blast furnace slag that it adopts is: CaO is 32.57wt%, SiO
2Be 28.01wt%, Al
2O
3Be 14.20wt%, MgO is 9.84wt%, Fe
2O
3Be 4.63wt%, TiO
2Be 8.15wt%, MnO＜1wt%.The carbon, 0～30wt% metallic aluminium, the iron of 0～10wt%, the silicon of 0～10wt% and the magnesium of 0～30wt% that add 0～20%wt at hot titanium-containing blast furnace slag at home and abroad, in the outer admixture of hot titanium-containing blast furnace slag, carbon, metallic aluminium and magnesium are not zero simultaneously, heat tracing and carry out the melting heat reduction reaction in ac arc furnace makes the ferrosilicon-titanium alloy.
Embodiment 11
A kind of method of utilizing hot titanium-containing blast furnace slag to prepare the ferrosilicon-titanium alloy, the composition of the hot titanium-containing blast furnace slag that it adopts is: CaO is 32.57wt%, SiO
2Be 28.01wt%, Al
2O
3Be 14.20wt%, MgO is 9.84wt%, Fe
2O
3Be 4.63wt%, TiO
2Be 8.15wt%, MnO＜1wt%.The carbon, 0～30wt% metallic aluminium, the iron of 0～10wt%, the silicon of 0～10wt% and the magnesium of 0～30wt% that add 0～20%wt at hot titanium-containing blast furnace slag at home and abroad, in the outer admixture of hot titanium-containing blast furnace slag, carbon, metallic aluminium and magnesium are not zero simultaneously, heat tracing and carry out the melting heat reduction reaction in direct current electric arc furnace makes the ferrosilicon-titanium alloy.
Embodiment 12
A kind of method of utilizing hot titanium-containing blast furnace slag to prepare the ferrosilicon-titanium alloy, the composition of the hot titanium-containing blast furnace slag that it adopts is: CaO is 32.57wt%, SiO
2Be 28.01wt%, Al
2O
3Be 14.20wt%, MgO is 9.84wt%, Fe
2O
3Be 4.63wt%, TiO
2Be 8.15wt%, MnO＜1wt%.The carbon, 0～30wt% metallic aluminium, the iron of 0～10wt%, the silicon of 0～10wt% and the magnesium of 0～30wt% that add 0～20%wt at hot titanium-containing blast furnace slag at home and abroad, in the outer admixture of hot titanium-containing blast furnace slag, carbon, metallic aluminium and magnesium are not zero simultaneously, heat tracing and carry out the melting heat reduction reaction in resistance furnace makes the ferrosilicon-titanium alloy.
This embodiment is a main raw material with hot titanium-containing blast furnace slag, makes full use of contained heat energy, is aided with other measures and heats, is incubated, and by the melting heat reduction method valuable metal such as titanium, silicon compound in the titanium-containing blast furnace slag is reduced to the ferrosilicon-titanium alloy.Accompanying drawing is the prepared ferrosilicon-titanium alloy of a kind of method in this embodiment, from accompanying drawing as can be seen, adopts the present invention, is that main raw material can make the ferrosilicon-titanium iron alloy with hot titanium-containing blast furnace slag.
This specific embodiment can improve yield of Titanium in the titanium-containing blast furnace slag, and its recovery rate can reach 85～90%, the TiO in the residue
2Content can be down to about 2%.In addition; owing to made full use of the heat energy that contains in the thermal-state blast furnace slag; thereby with " utilizing Ti-containing slag to prepare the method (ZL200510019664.3) of titanium or titanium alloy " patented technology is compared, but save energy 30-50% has crucial meaning for energy-saving and emission-reduction and environment protection.
Claims (3)
1. a method of utilizing hot titanium-containing blast furnace slag to prepare the ferrosilicon-titanium alloy is characterized in that at TiO
2Content is in the hot titanium-containing blast furnace slag of 5～30wt%, outer carbon, 0～30wt% metallic aluminium, the iron of 0～10wt%, the silicon of 0～10wt% and the magnesium of 0～30wt% that adds 0～20%wt, be aided with heating and insulation, carry out the melting heat reduction, make the ferrosilicon-titanium alloy;
In the outer admixture of hot titanium-containing blast furnace slag, carbon, metallic aluminium and magnesium are not zero simultaneously.
2. the method for utilizing hot titanium-containing blast furnace slag to prepare the ferrosilicon-titanium alloy according to claim 1 is characterized in that described hot titanium-containing blast furnace slag is for the vanadium titano-magnetite being the hot titanium-containing blast furnace slag that main raw material produces through blast-furnace smelting.
3. the method for utilizing hot titanium-containing blast furnace slag to prepare the ferrosilicon-titanium alloy according to claim 1 is characterized in that described heating and insulation or carries out at plasma heating furnace or at direct current electric arc furnace or at ac arc furnace or in resistance furnace.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103484683A (en) * | 2013-10-12 | 2014-01-01 | 钢铁研究总院 | Comprehensive utilization method of molten titanium-bearing blast furnace slag |
| WO2014113908A1 (en) * | 2013-01-24 | 2014-07-31 | 成都牧甫生物科技有限公司 | Method for directly obtaining alloys from blast-furnace molten-state slag |
| CN104651611A (en) * | 2015-02-06 | 2015-05-27 | 铜陵百荣新型材料铸件有限公司 | Method for preparing titanium-iron-silicon alloy from copper dross and scrap titanium |
| RU2563068C2 (en) * | 2013-11-27 | 2015-09-20 | Олег Юрьевич Харитонов | Method of accompanying production of ferrotitanium silicon during blast-furnace smelting of titanium magnetite concentrates |
| WO2018014364A1 (en) * | 2016-07-18 | 2018-01-25 | 东北大学 | Method for smelting reduction production and tempering of titaniferous mixed slag |
| CN107630117A (en) * | 2017-08-25 | 2018-01-26 | 鞍钢股份有限公司 | A kind of method that ferrosilicon and calcium aluminate material are prepared with thermal-state blast furnace slag |
| CN109293376A (en) * | 2018-10-11 | 2019-02-01 | 武汉科技大学 | A kind of silicon nitride titanium nitride carborundum refractory material and preparation method thereof |
| CN109439918A (en) * | 2018-11-14 | 2019-03-08 | 西南科技大学 | A kind of baking inphases extract titanium, iron, aluminium, magnesium component system in high titanium slag |
| CN110343874A (en) * | 2018-04-03 | 2019-10-18 | 上海广谋能源技术开发有限公司 | A method of titanium or titanium alloy is directly produced using titanium ore |
| CN115231576A (en) * | 2022-08-01 | 2022-10-25 | 昆明理工大学 | Method for preparing silicon-iron-titanium alloy by utilizing silicon slag, red mud and titanium-containing blast furnace slag |
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2011
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| WO2014113908A1 (en) * | 2013-01-24 | 2014-07-31 | 成都牧甫生物科技有限公司 | Method for directly obtaining alloys from blast-furnace molten-state slag |
| CN103484683A (en) * | 2013-10-12 | 2014-01-01 | 钢铁研究总院 | Comprehensive utilization method of molten titanium-bearing blast furnace slag |
| RU2563068C2 (en) * | 2013-11-27 | 2015-09-20 | Олег Юрьевич Харитонов | Method of accompanying production of ferrotitanium silicon during blast-furnace smelting of titanium magnetite concentrates |
| CN104651611A (en) * | 2015-02-06 | 2015-05-27 | 铜陵百荣新型材料铸件有限公司 | Method for preparing titanium-iron-silicon alloy from copper dross and scrap titanium |
| WO2018014364A1 (en) * | 2016-07-18 | 2018-01-25 | 东北大学 | Method for smelting reduction production and tempering of titaniferous mixed slag |
| CN107630117A (en) * | 2017-08-25 | 2018-01-26 | 鞍钢股份有限公司 | A kind of method that ferrosilicon and calcium aluminate material are prepared with thermal-state blast furnace slag |
| CN107630117B (en) * | 2017-08-25 | 2019-04-26 | 鞍钢股份有限公司 | A method of ferrosilicon and calcium aluminate material are prepared with thermal-state blast furnace slag |
| CN110343874A (en) * | 2018-04-03 | 2019-10-18 | 上海广谋能源技术开发有限公司 | A method of titanium or titanium alloy is directly produced using titanium ore |
| CN109293376A (en) * | 2018-10-11 | 2019-02-01 | 武汉科技大学 | A kind of silicon nitride titanium nitride carborundum refractory material and preparation method thereof |
| CN109293376B (en) * | 2018-10-11 | 2021-07-06 | 武汉科技大学 | Silicon nitride titanium nitride combined silicon carbide refractory material and preparation method thereof |
| CN109439918A (en) * | 2018-11-14 | 2019-03-08 | 西南科技大学 | A kind of baking inphases extract titanium, iron, aluminium, magnesium component system in high titanium slag |
| CN115231576A (en) * | 2022-08-01 | 2022-10-25 | 昆明理工大学 | Method for preparing silicon-iron-titanium alloy by utilizing silicon slag, red mud and titanium-containing blast furnace slag |
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Application publication date: 20110615 |