CN110551907A - Method for preparing vanadium-titanium alloy by using refined tailings - Google Patents
Method for preparing vanadium-titanium alloy by using refined tailings Download PDFInfo
- Publication number
- CN110551907A CN110551907A CN201910968734.1A CN201910968734A CN110551907A CN 110551907 A CN110551907 A CN 110551907A CN 201910968734 A CN201910968734 A CN 201910968734A CN 110551907 A CN110551907 A CN 110551907A
- Authority
- CN
- China
- Prior art keywords
- vanadium
- refined tailings
- titanium alloy
- refined
- tailings
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/10—Obtaining titanium, zirconium or hafnium
- C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
- C22B34/1218—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by dry processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/10—Obtaining titanium, zirconium or hafnium
- C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
- C22B34/1263—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining metallic titanium from titanium compounds, e.g. by reduction
- C22B34/1277—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining metallic titanium from titanium compounds, e.g. by reduction using other metals, e.g. Al, Si, Mn
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/20—Obtaining niobium, tantalum or vanadium
- C22B34/22—Obtaining vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/04—Dry methods smelting of sulfides or formation of mattes by aluminium, other metals or silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a method for preparing a vanadium-titanium alloy by using refined tailings, belonging to the technical field of metallurgy. The invention provides a method for preparing vanadium-titanium alloy by using refined tailings for simultaneously recycling vanadium and titanium in titanium tetrachloride refining, which comprises the following steps: firstly, carrying out oxygen-introducing roasting dechlorination treatment on the refined tailings to obtain dechlorinated refined tailings; and (3) taking a graphite electrode as a heating electrode, adding aluminum as a reducing material and dechlorination refined tailings, carrying out electroslag remelting, continuously electrifying, and obtaining the vanadium-titanium alloy after the aluminum consumable electrode is exhausted. The method provided by the invention can be used for recycling the vanadium element in the refined tailings, preventing the loss of the titanium element which is a precious resource, and ensuring high vanadium-titanium recovery rate, and the obtained vanadium-titanium alloy has a wide application field and ensures good additional output value income.
Description
Technical Field
The invention belongs to the technical field of metallurgy, and particularly relates to a method for preparing a vanadium-titanium alloy by using refined tailings.
Background
The method comprises the steps of separating VOCl 2 or low-valent chlorides of vanadium and other solid impurities generated in a refining vanadium-removing process from residues, recovering titanium tetrachloride in the obtained residues in an evaporation concentration mode, and after titanium tetrachloride is recovered by evaporation, obtaining titanium tetrachloride refined tailings, wherein the titanium tetrachloride refined tailings are 400t per year by Panzhi group titanium industry companies, the titanium tetrachloride refined tailings are one of typical TiCl solid wastes in a production process of 4, and a large amount of hydrochloric acid is released in a stacking process of the titanium tetrachloride refined tailings to seriously pollute the environment, and the vanadium content (about 10-18 per thousand) and the titanium content (about 18-25%) in the residues are high, so that the waste of resources is caused.
At present, most of vanadium in the tailings is extracted to prepare common vanadium or high-purity vanadium aiming at the comprehensive utilization of the refined tailings of titanium tetrachloride, so that a large amount of titanium is wasted, and no report exists for simultaneously recycling vanadium and titanium resources in the refined tailings.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for simultaneously recycling vanadium and titanium in titanium tetrachloride refined tailings so as to realize the comprehensive utilization of vanadium and titanium in the refined tailings.
The technical scheme adopted by the invention for solving the technical problems is to provide a method for preparing vanadium-titanium alloy by using refined tailings, which comprises the following steps: firstly, carrying out oxygen-introducing roasting dechlorination treatment on the refined tailings to obtain dechlorinated refined tailings; and (3) taking a graphite electrode as a heating electrode, adding aluminum as a reducing material and dechlorination refined tailings, carrying out electroslag remelting, continuously electrifying, and obtaining the vanadium-titanium alloy after the aluminum consumable electrode is exhausted.
In the method for preparing the vanadium-titanium alloy by using the refined tailings, the refined tailings contain the following components in percentage by mass: 10-20% of TV, 12-25% of Ti, 3-15% of Cl, 3-12% of C, 0.6-2% of Si, 1-1.8% of Fe and 0.1-0.3% of Al.
in the method for preparing the vanadium-titanium alloy by using the refined tailings, the oxygen flow is controlled to be 135-420 m 3/(h refined tailings) in the oxygen-introducing roasting dechlorination treatment, the roasting temperature is 450-600 ℃, and the roasting time is 30-90 min.
In the method for preparing the vanadium-titanium alloy by using the refined tailings, the dechlorination refined tailings comprise the following components in percentage by mass: 15-25% of TV, 18-30% of Ti, less than 0.05% of Cl, less than 0.05% of C, 1.2-2% of Fe, 0.5-2% of Al and 1.5-3% of Si.
In the method for preparing the vanadium-titanium alloy by using the refined tailings, the addition amount of the aluminum reducing material is 1.0-1.3 times of the theoretical aluminum consumption amount.
In the method for preparing the vanadium-titanium alloy by using the refined tailings, the unit power consumption of reduction smelting is controlled to be 600-1300 kWh/ton when electroslag remelting is carried out.
The invention has the beneficial effects that:
The method provided by the invention can be used for recycling the vanadium element in the refined tailings, preventing the loss of the titanium element which is a precious resource, and ensuring high vanadium-titanium recovery rate, and the obtained vanadium-titanium alloy has a wide application field and ensures good additional output value income.
Detailed Description
Specifically, the method for preparing the vanadium-titanium alloy by using the refined tailings comprises the following steps: firstly, carrying out oxygen-introducing roasting dechlorination treatment on the refined tailings to obtain dechlorinated refined tailings; and (3) taking a graphite electrode as a heating electrode, adding aluminum as a reducing material and dechlorination refined tailings, carrying out electroslag remelting, continuously electrifying, and obtaining the vanadium-titanium alloy after the aluminum consumable electrode is exhausted.
The method is suitable for refining tailings in a titanium tetrachloride production process, the refining tailings do not exist in a simple substance form, exist in a chloride form partially, exist in an oxide form partially, and generally contain the following components in percentage by mass: 10-20% of TV, 12-25% of Ti, 3-15% of Cl, 3-12% of C, 0.6-2% of Si, 1-1.8% of Fe and 0.1-0.3% of Al.
In the method, refined tailings need to be subjected to oxygen-passing roasting dechlorination, the flow of oxygen is controlled to be 135-420 m 3/(h & t refined tailings) according to the components of the refined tailings, the roasting temperature is 450-600 ℃, the roasting time is 30-90 min, and the method can ensure that chlorine in the refined tailings is completely removed, metal elements in chlorides exist in the form of metal oxides, and the chlorine escapes in the form of chlorine gas.
VCl3+O2→V2O5+Cl2
VOCl2+O2→V2O5+Cl2
TiOCl2+O2→TiO2+Cl2
FeCl3+O2→Fe2O3+Cl2
C+O2＝CO2。
Through the reaction, the dechlorination refined tailings contain the following components in percentage by mass: 15-25% of TV, 18-30% of Ti, less than 0.05% of Cl, less than 0.05% of C, 1.2-2% of Fe, 0.5-2% of Al and 1.5-3% of Si.
the adding amount of the aluminum reducing material is 1.0-1.3 times of the theoretical aluminum consumption amount of the reaction of Al, Ti and V, so that vanadium and titanium in the refined tailings can be reduced as completely as possible, and excessive aluminum reacts with other substances without residual simple substance aluminum.
In the invention, the unit power consumption of reduction smelting is controlled to be 600-1300 kWh/ton, an aluminum consumable electrode is melted under strong current, molten aluminum liquid contacts and reacts with high-temperature refined tailings, oxides such as TiO 2, V 2 O 5 and the like in the refined tailings are reduced to form high-temperature molten vanadium-titanium alloy, and the remaining solid residue mainly comprises aluminum oxide, wherein the reduction reaction generated in the process mainly comprises the following steps:
TiO2(s)+Al(l)→[Ti]+(Al2O3)
V2O5(s)+Al(l)→[V]+(Al2O3)
Fe2O3(s)+Al(l)→[Fe]+(Al2O3)
SiO2(s)+Al(l)→[Si]+(Al2O3)。
The present invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
Example 1
Through chemical analysis, the components of the refined tailings comprise 15.5% of TV, 20.37% of Ti, 13.06% of Cl, 0.889% of Si, 1.34% of Fe and 5.9% of C in percentage by mass.
The method comprises the steps of firstly, conducting rotary kiln dechlorination roasting on refined tailings, and specifically, conducting oxygen flow of 370m 3/(h.t refined tailings) from a kiln head of a rotary kiln, setting the heating temperature to be 600 ℃, setting the rotation rate to be 1.5r/min, adding the titanium tetrachloride refined tailings from the kiln tail of the rotary kiln into the rotary kiln, forming countercurrent contact with oxygen to conduct roasting, dechlorination and decarbonization, discharging the roasted refined tailings from the kiln head, and collecting the refined tailings, wherein chemical components of the dechlorination refined tailings comprise 22.73% of TV, 24.3% of Ti, 2.44% of Si and 2.15% of Fe. in mass fraction, and the dechlorination refined tailings are utilized to prepare the vanadium-titanium alloy by adopting the method disclosed by the invention, and the specific steps are as follows:
Taking 100kg of refined tailings, taking a graphite electrode as a heating electrode, adding 47kg of aluminum reducing material and the refined tailings, carrying out electroslag remelting (1.1 times of theoretical aluminum consumption), controlling the power supply to be 600 kWh/ton, continuously electrifying, collecting molten vanadium-titanium alloy when the total content of vanadium and titanium in the measured slag is less than 5%, and cooling to obtain 49.98kg of vanadium-titanium alloy, wherein the content of titanium is about 22kg, the recovery rate of titanium is 90.5%, the content of vanadium is about 19.91kg, and the recovery rate of vanadium is 87.6%.
Example 2
through chemical analysis, the components of the refined tailings comprise 15.7% of TV, 19.9% of Ti, 11.28% of Cl, 0.675% of Si, 1.5% of Fe and 7.0% of C in percentage by mass.
The method comprises the steps of firstly, conducting rotary kiln dechlorination roasting on refined tailings, and specifically, conducting oxygen flow of 370m 3/(h.t refined tailings) from a kiln head of a rotary kiln, setting the heating temperature to be 600 ℃, setting the rotation rate to be 1.5r/min, adding the titanium tetrachloride refined tailings from the kiln tail of the rotary kiln into the rotary kiln, forming countercurrent contact with oxygen to conduct roasting, dechlorination and decarbonization, discharging the roasted refined tailings from the kiln head, and collecting the refined tailings, wherein chemical components of the dechlorination refined tailings comprise, by mass, 19.98% of TV, 26.5% of Ti, 2.63% of Si and 2% of Fe., and the dechlorination refined tailings are utilized to prepare the vanadium-titanium alloy by adopting the method disclosed by the invention, and the specific steps are as follows:
100kg of dechlorination refined tailings are taken, a graphite electrode is taken as a heating electrode, 51kg of aluminum reducing material and the refined tailings are added to carry out electroslag remelting processing (1.2 times of theoretical aluminum consumption), the power supply is controlled to be 900 kWh/ton, the power is continuously electrified, when the total content of vanadium and titanium in the slag is measured to be less than 5%, molten vanadium-titanium alloy is collected and cooled, and 50.11kg of vanadium-titanium alloy is obtained, wherein the titanium content is about 24.49kg, the recovery rate of titanium elements reaches 92.4%, the vanadium content is about 18.02kg, and the recovery rate of vanadium elements reaches 90.2%.
Example 3
Through chemical analysis, the components of the refined tailings comprise, by mass, 17.6% of TV, 20.21% of Ti, 16.2% of Cl, 1.78% of Si, 1.26% of Fe and 9.2% of C.
The method comprises the steps of firstly, conducting rotary kiln dechlorination roasting on refined tailings, and specifically, conducting oxygen flow of 370m 3/(h.t refined tailings) from a kiln head of a rotary kiln, setting the heating temperature to be 600 ℃, setting the rotation rate to be 1.5r/min, adding the titanium tetrachloride refined tailings from the kiln tail of the rotary kiln into the rotary kiln, forming countercurrent contact with oxygen to conduct roasting, dechlorination and decarbonization, discharging the roasted refined tailings from the kiln head, and collecting the refined tailings, wherein chemical components of the dechlorination refined tailings comprise, by mass, 21.19% of TV, 25.21% of Ti, 2.44% of Si and 2.15% of Fe., and the dechlorination refined tailings are utilized to prepare the vanadium-titanium alloy by adopting the method disclosed by the invention, and the specific steps are as follows:
100kg of dechlorination refined tailings are taken, a graphite electrode is taken as a heating electrode, 55kg of aluminum reducing material and the refined tailings are added to carry out electroslag remelting processing (1.3 times of theoretical aluminum consumption), the power supply is controlled to be 1200 kWh/ton, the power is continuously electrified, when the total content of vanadium and titanium in the slag is measured to be less than 5%, molten vanadium-titanium alloy is collected and cooled, and 49.25kg of vanadium-titanium alloy is obtained, wherein the content of titanium is about 23.82kg, the recovery rate of titanium is 94.5%, the content of vanadium is about 19.41kg, and the recovery rate of vanadium is 91.6%.
Claims (6)
1. The method for preparing the vanadium-titanium alloy by using the refined tailings is characterized by comprising the following steps of: the method comprises the following steps: firstly, carrying out oxygen-introducing roasting dechlorination treatment on the refined tailings to obtain dechlorinated refined tailings; and (3) taking a graphite electrode as a heating electrode, adding aluminum as a reducing material and dechlorination refined tailings, carrying out electroslag remelting, continuously electrifying, and obtaining the vanadium-titanium alloy after the aluminum consumable electrode is exhausted.
2. The method for preparing the vanadium-titanium alloy by using the refined tailings as claimed in claim 1, wherein: the refined tailings comprise the following components in percentage by mass: 10-20% of TV, 12-25% of Ti, 3-15% of Cl, 3-12% of C, 0.6-2% of Si, 1-1.8% of Fe and 0.1-0.3% of Al.
3. The method for preparing the vanadium-titanium alloy from the refined tailings according to claim 1, wherein in the oxygen-introducing roasting dechlorination treatment, the oxygen flow rate is controlled to be 135-420 m 3/(h & t refined tailings), the roasting temperature is 450-600 ℃, and the roasting time is 30-90 min.
4. The method for preparing a vanadium-titanium alloy from the refined tailings according to any one of claims 1 to 3, wherein: the dechlorination refined tailings comprise the following components in percentage by mass: 15-25% of TV, 18-30% of Ti, less than 0.05% of Cl, less than 0.05% of C, 1.2-2% of Fe, 0.5-2% of Al and 1.5-3% of Si.
5. The method for preparing the vanadium-titanium alloy by using the refined tailings as claimed in claim 1, wherein: the adding amount of the aluminum reducing material is 1.0-1.3 times of the theoretical aluminum consumption.
6. The method for preparing a vanadium-titanium alloy from the refined tailings according to any one of claims 1 to 5, wherein: and when electroslag remelting is carried out, controlling the unit power consumption of reduction smelting to be 600-1300 kWh/ton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910968734.1A CN110551907A (en) | 2019-10-12 | 2019-10-12 | Method for preparing vanadium-titanium alloy by using refined tailings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910968734.1A CN110551907A (en) | 2019-10-12 | 2019-10-12 | Method for preparing vanadium-titanium alloy by using refined tailings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110551907A true CN110551907A (en) | 2019-12-10 |
Family
ID=68742926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910968734.1A Pending CN110551907A (en) | 2019-10-12 | 2019-10-12 | Method for preparing vanadium-titanium alloy by using refined tailings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110551907A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111774550A (en) * | 2020-07-30 | 2020-10-16 | 安徽工业大学 | Electroslag feeding device for improving crystallization quality of large steel ingot |
| CN112981141A (en) * | 2021-02-08 | 2021-06-18 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for preparing ferrovanadium alloy from titanium tetrachloride refining tailings |
| CN112981154A (en) * | 2021-02-08 | 2021-06-18 | 攀钢集团攀枝花钢铁研究院有限公司 | Preparation method of vanadium-titanium-aluminum alloy |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004024963A2 (en) * | 2002-09-12 | 2004-03-25 | Millennium Inorganic Chemicals, Inc. | Methods of making elemental materials and alloys |
| CN102061399A (en) * | 2010-11-26 | 2011-05-18 | 重庆大学 | Method for preparing titanium-aluminium alloy by utilizing high titanium type blast furnace slag |
| CN104762488A (en) * | 2015-04-30 | 2015-07-08 | 安徽工业大学 | Direct alloying method of vanadium in electroslag remelting process |
| CN108018465A (en) * | 2017-11-23 | 2018-05-11 | 达州励志环保科技有限公司 | A kind of method that aluminothermic reduction ilmenite prepares Al-Ti-Fe alloys in ice crystal ground mass fused salt |
| CN108220601A (en) * | 2018-02-11 | 2018-06-29 | 沈阳北冶冶金科技有限公司 | A kind of preparation method of titanium alloy |
| CN108677035A (en) * | 2018-08-31 | 2018-10-19 | 攀钢集团攀枝花钢铁研究院有限公司 | Rotary kiln continuously roasts the method that titanium tetrachloride refines tailings dechlorination decarburization |
-
2019
- 2019-10-12 CN CN201910968734.1A patent/CN110551907A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004024963A2 (en) * | 2002-09-12 | 2004-03-25 | Millennium Inorganic Chemicals, Inc. | Methods of making elemental materials and alloys |
| CN102061399A (en) * | 2010-11-26 | 2011-05-18 | 重庆大学 | Method for preparing titanium-aluminium alloy by utilizing high titanium type blast furnace slag |
| CN104762488A (en) * | 2015-04-30 | 2015-07-08 | 安徽工业大学 | Direct alloying method of vanadium in electroslag remelting process |
| CN108018465A (en) * | 2017-11-23 | 2018-05-11 | 达州励志环保科技有限公司 | A kind of method that aluminothermic reduction ilmenite prepares Al-Ti-Fe alloys in ice crystal ground mass fused salt |
| CN108220601A (en) * | 2018-02-11 | 2018-06-29 | 沈阳北冶冶金科技有限公司 | A kind of preparation method of titanium alloy |
| CN108677035A (en) * | 2018-08-31 | 2018-10-19 | 攀钢集团攀枝花钢铁研究院有限公司 | Rotary kiln continuously roasts the method that titanium tetrachloride refines tailings dechlorination decarburization |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111774550A (en) * | 2020-07-30 | 2020-10-16 | 安徽工业大学 | Electroslag feeding device for improving crystallization quality of large steel ingot |
| CN112981141A (en) * | 2021-02-08 | 2021-06-18 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for preparing ferrovanadium alloy from titanium tetrachloride refining tailings |
| CN112981154A (en) * | 2021-02-08 | 2021-06-18 | 攀钢集团攀枝花钢铁研究院有限公司 | Preparation method of vanadium-titanium-aluminum alloy |
| CN112981154B (en) * | 2021-02-08 | 2022-07-19 | 攀钢集团攀枝花钢铁研究院有限公司 | Preparation method of vanadium-titanium-aluminum alloy |
| CN112981141B (en) * | 2021-02-08 | 2022-08-05 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for preparing ferrovanadium alloy from titanium tetrachloride refining tailings |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10081874B2 (en) | Method for electrowinning titanium from titanium-containing soluble anode molten salt | |
| KR101370007B1 (en) | Thermal and electrochemical process for metal production | |
| CN110551907A (en) | Method for preparing vanadium-titanium alloy by using refined tailings | |
| CN105658582B (en) | Prepare titanium products | |
| EP2462251B1 (en) | Treatment of titanium ores | |
| CN102921953A (en) | Method of preparing metal titanium powder through TiO2 | |
| WO2020098176A1 (en) | Carbonized/sulfurized ferrotitanium complex ore anode-electrolytic method for preparing metallic titanium | |
| CN112981141B (en) | Method for preparing ferrovanadium alloy from titanium tetrachloride refining tailings | |
| CN105925813A (en) | Vanadium slag comprehensive treatment method and application thereof | |
| CN108677035A (en) | Rotary kiln continuously roasts the method that titanium tetrachloride refines tailings dechlorination decarburization | |
| CN106315584A (en) | Method for preparing carbon-doped titanium oxide or/and titanium carbide from titanium-containing mineral or slag | |
| WO2024124791A1 (en) | Method for preparing refined vanadium oxytrichloride from vanadium-containing refined tailings | |
| CN109055781A (en) | A method of titanium products are prepared using ferrotianium grandidierite as raw material | |
| CN104313338A (en) | Titaniferous metallurgical residue treatment method | |
| CN109868370B (en) | Method for recovering valuable metals in vanadium-chromium slag | |
| CN109112333B (en) | Method for preparing ferrotitanium alloy by adopting carbothermic reduction-self-propagating | |
| CN108264088B (en) | Method for preparing tantalum pentachloride from titanium-tantalum enriched slag | |
| CN101157990A (en) | Method for obtaining metallic titanium by reducing titanium-containing material | |
| CN110396610B (en) | Method for treating titanium minerals and metal silicate minerals through ammonium salt pressure pyrolysis | |
| WO2023116074A1 (en) | Method for treating titanium-containing slag and enriching rutile | |
| CN115747511A (en) | Method and system for processing zinc-containing ash in iron and steel plant by adopting chlorination smelting process | |
| CN109666793B (en) | Method for preparing high-titanium-iron alloy by electro-aluminothermic process | |
| US4454013A (en) | Method of separating iron and its alloy metals from fine-grained crude oxidic products | |
| CN106978543A (en) | The system and method for handling converter vanadium chromium slag | |
| CN102912124A (en) | Method for recovering nickel, cobalt, manganese and iron by hydrochloric acid leaching of nickel oxide ore |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191210 |