CN100443603C - Method for preparing titanium and titanium alloy by utilizing titanium-containing slag - Google Patents
Method for preparing titanium and titanium alloy by utilizing titanium-containing slag Download PDFInfo
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- CN100443603C CN100443603C CNB2005100196643A CN200510019664A CN100443603C CN 100443603 C CN100443603 C CN 100443603C CN B2005100196643 A CNB2005100196643 A CN B2005100196643A CN 200510019664 A CN200510019664 A CN 200510019664A CN 100443603 C CN100443603 C CN 100443603C
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- 239000010936 titanium Substances 0.000 title claims abstract description 58
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 52
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 239000002893 slag Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 17
- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000003723 Smelting Methods 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 7
- 238000010891 electric arc Methods 0.000 claims abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 4
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 4
- 239000011777 magnesium Substances 0.000 claims abstract description 4
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 4
- 230000002829 reductive effect Effects 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 238000002844 melting Methods 0.000 claims 2
- 230000008018 melting Effects 0.000 claims 2
- 239000004411 aluminium Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 9
- 239000002184 metal Substances 0.000 abstract description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 7
- 239000003638 chemical reducing agent Substances 0.000 abstract description 7
- 230000004927 fusion Effects 0.000 abstract description 4
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 238000006722 reduction reaction Methods 0.000 description 11
- UGACIEPFGXRWCH-UHFFFAOYSA-N [Si].[Ti] Chemical compound [Si].[Ti] UGACIEPFGXRWCH-UHFFFAOYSA-N 0.000 description 6
- 229910001021 Ferroalloy Inorganic materials 0.000 description 4
- 229910000676 Si alloy Inorganic materials 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- NWXHSRDXUJENGJ-UHFFFAOYSA-N calcium;magnesium;dioxido(oxo)silane Chemical compound [Mg+2].[Ca+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O NWXHSRDXUJENGJ-UHFFFAOYSA-N 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229910052637 diopside Inorganic materials 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
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Abstract
本发明涉及一种利用含钛炉渣(包括含钛高炉渣等)制备钛金属的方法。其技术方案是将TiO2含量为10～90wt%的含钛炉渣，外加0～50%的碳、0～40wt%的金属铝、0～40%的铁和0～20%的镁为还原剂，还原剂的加入量不同时为零，混合均匀后进行熔融热还原。其中，含钛炉渣或为高炉炉渣、或为其他方法产生的冶炼炉渣。所述的熔融热还原是或在等离子炉、或在直流电弧炉、或在交流电弧炉中进行。本发明通过熔融热还原法将炉渣中含钛化合物还原为金属钛或钛合金，能提高含钛炉渣中钛的收得率，其收得率可达85～90%，残渣中的残钛含量可低于4%。
The invention relates to a method for preparing titanium metal by utilizing titanium-containing slag (including titanium-containing blast furnace slag, etc.). The technical solution is to use titanium-containing slag with a TiO2 content of 10-90wt%, plus 0-50% carbon, 0-40wt% aluminum metal, 0-40% iron and 0-20% magnesium as reducing agents , the amount of reducing agent added is not zero at the same time, and the fusion heat reduction is carried out after mixing evenly. Among them, the titanium-containing slag is either blast furnace slag or smelting slag produced by other methods. The fusion heat reduction is carried out either in a plasma furnace, or in a DC electric arc furnace, or in an AC electric arc furnace. The present invention reduces the titanium-containing compound in the slag to metal titanium or titanium alloy through the smelting heat reduction method, which can increase the yield of titanium in the titanium-containing slag, and the yield can reach 85-90%. The residual titanium content in the residue Can be lower than 4%.
Description
技术领域 technical field
本发明属于制备钛金属的方法，尤其涉及一种利用含钛炉渣(包括含钛高炉渣等)制备钛金属的方法。The invention belongs to a method for preparing titanium metal, in particular to a method for preparing titanium metal by utilizing titanium-containing slag (including titanium-containing blast furnace slag, etc.).
背景技术 Background technique
自上世纪60年代以来，国内外科技工作者对含钛炉渣(包括含钛高炉渣等)的综合利用做了大量的研究工作，从研究工作内容看，绝大多数研究工作围绕从含钛炉渣中提取金属钛、钛合金及含钛化合物进行，其次是利用含钛炉渣作为建筑材料。Since the 1960s, domestic and foreign scientific and technological workers have done a lot of research work on the comprehensive utilization of titanium-containing slag (including titanium-containing blast furnace slag, etc.). Extract metal titanium, titanium alloys and titanium-containing compounds, followed by using titanium-containing slag as building materials.
含钛炉渣按其种类不同，其中的TiO2含量也不同，其波动范围可达10～90％，其中的含钛矿物主要为钙钛矿、金红石和攀钛透辉石等，炉渣含钛量低于30％时，其含钛矿物结晶细小呈弥散状分布于炉渣中，很难分离。从含钛炉渣中提取钛及钛合金具有代表性的研究工作为“硅热法还原高炉渣直流电炉冶炼硅钛铁合金”。According to the different types of titanium-containing slag, the content of TiO2 in it is also different, and its fluctuation range can reach 10-90%. The titanium-containing minerals in it are mainly perovskite, rutile, and climbing titanium diopside. When the content is less than 30%, the titanium-containing mineral crystals are fine and dispersed in the slag, which is difficult to separate. The representative research work on the extraction of titanium and titanium alloys from titanium-containing slag is "silicon thermal reduction of blast furnace slag and smelting of silicon-titanium ferroalloys in direct current electric furnaces".
采用硅热法还原高炉渣直流电炉冶炼硅钛铁合金，开展了“攀钢高炉渣直流电炉制取钛硅合金及水泥的研究”课题研究，进行了“钛硅合金等级的研究”、“钛硅合金应用试验”、“攀钢高炉渣直流电炉制取钛硅合金冶炼工艺的研究”和“还原残渣制水泥的研究”等多项专题研究。在200kVA单电极直流电弧炉上采用含TiO2 22.57％的攀钢高炉渣为原料，以含75％Si的硅铁作还原剂冶炼硅钛铁合金试验。共得到合金2.996t，合金中23.45％Ti、44.06％Si，钛的回收率为54.03％(徐楚韶，刘天福.用高炉钛渣冶炼复合铁合金.矿冶工程.1988，11(2))。但还原残渣中含TiO2 7.09％，仍然较高，不能用于水泥活性掺和料，因为当矿渣中的TiO2含量大于4％时，会明显降低水泥的水化强度。Using silicothermal method to reduce blast furnace slag DC electric furnace to smelt silicon-titanium ferroalloy, carried out the research on "Research on Panzhihua Iron and Steel Blast Furnace Slag DC Electric Furnace to Produce Titanium Silicon Alloy and Cement", carried out "Research on Titanium Silicon Alloy Grade", "Titanium Silicon Alloy application test", "Research on the smelting process of titanium-silicon alloy produced by Panzhihua Iron and Steel Blast Furnace Slag DC Electric Furnace" and "Research on Cement Production from Reduction Residue". A 200kVA single-electrode DC arc furnace was used to smelt silicon-titanium ferroalloys using Panzhihua Iron and Steel blast furnace slag containing 22.57% TiO 2 as raw material and ferrosilicon containing 75% Si as reducing agent. A total of 2.996t alloy was obtained, 23.45% Ti, 44.06% Si in the alloy, and the recovery rate of titanium was 54.03% (Xu Chushao, Liu Tianfu. Smelting composite ferroalloy with blast furnace titanium slag. Mining and Metallurgy Engineering. 1988, 11(2)). However, the reduction residue contains 7.09% TiO 2 , which is still relatively high and cannot be used as an active cement admixture, because when the TiO 2 content in the slag is greater than 4%, the hydration strength of cement will be significantly reduced.
发明内容 Contents of the invention
本发明的目的是提供一种能提高含钛炉渣中钛的收得率、可降低残渣中的残钛量的利用含钛炉渣制备钛及钛合金的方法。The purpose of the present invention is to provide a method for preparing titanium and titanium alloys using titanium-containing slag, which can increase the yield of titanium in titanium-containing slag and reduce the amount of residual titanium in the residue.
为实现上述目的，本发明所采用的技术方案是将TiO2含量为10～90wt％的含钛炉渣，外加0～50％的碳、0～40wt％的金属铝、0～40％的铁和0～20％的镁为还原剂，还原剂的加入量不同时为零，混合均匀后进行熔融热还原。。In order to achieve the above object, the technical solution adopted in the present invention is to use TiO content of 10-90wt% titanium - containing slag, add 0-50% carbon, 0-40wt% aluminum, 0-40% iron and 0-20% of magnesium is the reducing agent, and the adding amount of the reducing agent is not equal to zero at the same time, and the fusion heat reduction is carried out after mixing evenly. .
其中，含钛炉渣或为高炉炉渣、或为其他方法产生的冶炼炉渣。所述的熔融热还原是或在等离子炉、或在直流电弧炉、或在交流电弧炉中进行。Among them, the titanium-containing slag is either blast furnace slag or smelting slag produced by other methods. The fusion heat reduction is carried out either in a plasma furnace, or in a DC electric arc furnace, or in an AC electric arc furnace.
由于采用上述技术方案，通过熔融热还原法将炉渣中含钛化合物还原为金属钛或钛合金，能提高含钛炉渣中钛的收得率，其收得率可达85～90％，残渣中的残钛含量可低于4％。Due to the above-mentioned technical scheme, the titanium-containing compound in the slag is reduced to metal titanium or titanium alloy by the smelting heat reduction method, which can increase the yield of titanium in the titanium-containing slag, and the yield can reach 85-90%. The residual titanium content can be lower than 4%.
附图说明 Description of drawings
图1为本发明制备的一种还原产物-金属钛扫描电子显微镜照片：Fig. 1 is a kind of reduction product-metal titanium scanning electron micrograph photo prepared by the present invention:
图2为本发明制备的一种还原产物-铝硅钛合金扫描电子显微镜照片。Fig. 2 is a scanning electron microscope photo of a reduction product-aluminum silicon titanium alloy prepared in the present invention.
具体实施方式 Detailed ways
一种利用含钛炉渣制备钛及钛合金的方法，其所采用的含钛炉渣的成分为：CaO为24.62wt％、SiO2为27.97wt％、Al2O3为13.40wt％、MgO为7.68wt％、Fe2O3为3.19wt％、TiO2为20.59wt％、MnO＜1wt％。配以0～40％的金属铝、0～50％的碳、0～40％的铁和0～20％的镁为还原剂，还原剂的加入量不同时为零，混合均匀后在等离子炉中熔融并进行热还原反应，得到了钛及钛合金。A method for preparing titanium and titanium alloys using titanium-containing slag, the composition of the titanium-containing slag used is: 24.62wt% of CaO, 27.97wt% of SiO2 , 13.40wt % of Al2O3 , and 7.68wt% of MgO wt%, Fe2O3 is 3.19wt %, TiO2 is 20.59wt%, MnO<1wt%. With 0-40% metal aluminum, 0-50% carbon, 0-40% iron and 0-20% magnesium as the reducing agent, the amount of reducing agent added is zero at the same time, after mixing evenly, the plasma furnace Melt in medium and carry out thermal reduction reaction to obtain titanium and titanium alloys.
本实施例所所制备的还原产物-金属钛如图1所示，所制备的还原产物-铝硅钛合金如图2所示。采用能谱仪对所得产物进行了显微结构及微区成分分析，分析结果如图1、图2所示。The reduction product prepared in this example-metal titanium is shown in FIG. 1 , and the reduction product-aluminum-silicon-titanium alloy prepared is shown in FIG. 2 . The obtained product was analyzed by energy spectrometer for microstructure and microregion composition, and the analysis results are shown in Fig. 1 and Fig. 2 .
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101544502B (en) * | 2009-04-24 | 2012-03-21 | 武汉科技大学 | Anorthite light weight refractory and preparation method thereof |
| CN101544503B (en) * | 2009-04-24 | 2012-07-04 | 武汉科技大学 | Anorthite material and preparation method thereof |
| CN102923976A (en) * | 2012-11-23 | 2013-02-13 | 攀枝花钢城集团有限公司 | Aluminate cement preparation method |
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| CN100523235C (en) * | 2007-11-19 | 2009-08-05 | 攀钢集团攀枝花钢铁研究院 | A method for obtaining titanium metal by reducing titanium-containing materials |
| RU2405045C2 (en) * | 2008-05-12 | 2010-11-27 | Анатолий Евгеньевич Волков | Method of autoclave production of chemically active materials and device to this end |
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| GB2158102A (en) * | 1984-05-04 | 1985-11-06 | Vale Do Rio Doce Co | Process for obtaining metallic titanium from an anatase concentrate by an alumino-thermic or magnesium-thermic method |
| CN1062558A (en) * | 1992-01-08 | 1992-07-08 | 冶金工业部钢铁研究总院 | A kind of smelting method of titanium-containing steel and titanium-containing additive |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2158102A (en) * | 1984-05-04 | 1985-11-06 | Vale Do Rio Doce Co | Process for obtaining metallic titanium from an anatase concentrate by an alumino-thermic or magnesium-thermic method |
| CN1062558A (en) * | 1992-01-08 | 1992-07-08 | 冶金工业部钢铁研究总院 | A kind of smelting method of titanium-containing steel and titanium-containing additive |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101544502B (en) * | 2009-04-24 | 2012-03-21 | 武汉科技大学 | Anorthite light weight refractory and preparation method thereof |
| CN101544503B (en) * | 2009-04-24 | 2012-07-04 | 武汉科技大学 | Anorthite material and preparation method thereof |
| CN102923976A (en) * | 2012-11-23 | 2013-02-13 | 攀枝花钢城集团有限公司 | Aluminate cement preparation method |
| CN102923976B (en) * | 2012-11-23 | 2014-10-08 | 攀枝花钢城集团有限公司 | Aluminate cement preparation method |
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