CN101302578A - Composite vanadium extraction and dephosphorization agent for vanadium-containing molten iron and preparation thereof - Google Patents
Composite vanadium extraction and dephosphorization agent for vanadium-containing molten iron and preparation thereof Download PDFInfo
- Publication number
- CN101302578A CN101302578A CNA2008101319095A CN200810131909A CN101302578A CN 101302578 A CN101302578 A CN 101302578A CN A2008101319095 A CNA2008101319095 A CN A2008101319095A CN 200810131909 A CN200810131909 A CN 200810131909A CN 101302578 A CN101302578 A CN 101302578A
- Authority
- CN
- China
- Prior art keywords
- vanadium extraction
- vanadium
- dephosphorization agent
- dephosphorization
- composite
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The invention discloses a composite vanadium extraction and dephosphorization agent for vanadium-bearing molten iron and a method for preparing the same. The composite vanadium extraction and dephosphorization agent comprises the following compositions in percentage by weight: 0 to 30 percent of CaO, 40 to 65 percent of TFe, 3 to 15 percent of SiO2, 0 to 15 percent of MgO, 0 to 15 percent Al2O3 of and the balance being impurity. Through utilizing the composite vanadium extraction and dephosphorization agent, the pretreatment of vanadium extraction and dephosphorization can be carried out to the vanadium-bearing molten iron by one-step operation, thereby extracting a beneficial element of vanadium and acquiring low-phosphorus semisteel.
Description
Technical field
The invention belongs to ferrous metallurgy auxiliary material technical field.Specifically, the present invention relates to a kind of composite vanadium extraction and dephosphorization agent that can be used for vanadium-bearing hot metal and preparation method thereof.
Background technology
Vanadium is a kind of very important metallic element, and it is widely used in the industrial circles such as metallurgy, chemical industry with forms such as vanadium metal, vanadium compound.Therefore, the extraction of vanadium and recovery have great economic worth.In extraction that v element is carried out and recovery technology, the process for extracting vanadium that vanadium-bearing hot metal is carried out is the Technology of an important extraction v element.
In addition, along with industrial expansion and development of technology, the production of high-quality Clean Steel becomes the important content of steel-smelting technology development.Phosphorus is the harmful element in the steel, so the control of phosphorus content has become one of key factor that improves steel, the low-phosphorous high-quality steel of smelting.
At present, vanadium-bearing hot metal is carried out vanadium extraction and the pretreated main technique of dephosphorization is as follows: at first carry out selective oxidation to smelting the vanadium-bearing hot metal that, promptly carrying out top blast blows vanadium or blows vanadium again, make vanadium oxidized, thereby obtain v-bearing steel slag, from molten steel, isolate v-bearing steel slag, and in follow-up technology, the v element in the v-bearing steel slag is reclaimed, obtained the half steel of process vanadium extraction by this process for extracting vanadium; Next, again the half steel through vanadium extraction is carried out the dephosphorization pre-treatment, thereby obtain half steel through dephosphorization; Make half steel enter converter steelmaking then, the last low-phosphorous high-quality steel of output through dephosphorization.That is, vanadium extraction and the dephosphorization pretreatment technology that at present vanadium-bearing hot metal is carried out is to carry out the two step operating procedures that dephosphorization is carried out in vanadium extraction more earlier.
Therefore, can just become a technical task to the technology that vanadium-bearing hot metal carries out vanadium extraction and dephosphorization simultaneously by single stepping with great economy meaning.
Summary of the invention
The object of the present invention is to provide a kind of vanadium-bearing hot metal composite vanadium extraction and dephosphorization agent.By utilizing this composite vanadium extraction and dephosphorization agent, can carry out vanadium extraction and dephosphorization pre-treatment simultaneously to vanadium-bearing hot metal by single stepping, thereby can either extract the beneficial element vanadium, can access low-phosphorous half steel again simultaneously.
Another object of the present invention is to provide the preparation method of a kind of vanadium-bearing hot metal with composite vanadium extraction and dephosphorization agent.By utilizing this composite vanadium extraction and dephosphorization agent, can carry out vanadium extraction and dephosphorization pre-treatment simultaneously to vanadium-bearing hot metal by single stepping, thereby can either extract the beneficial element vanadium, can access low-phosphorous half steel again simultaneously.
In order to realize the foregoing invention purpose, can comprise weight percent according to composite vanadium extraction and dephosphorization agent of the present invention is 0%～30% CaO, 40%～65% TFe, 3%～15% SiO
2, 0%～15% MgO and 0%～15% Al
2O
3, surplus is an impurity.Preferably, can comprise weight percent according to composite vanadium extraction and dephosphorization agent of the present invention is 10%～30% CaO, 40%～65% TFe, 3%～8% SiO
2, 4%～8% MgO and 8%～12% Al
2O
3, surplus is an impurity.According to composite vanadium extraction and dephosphorization agent of the present invention can (granularity be 5mm～50mm) for balk cargo form (granularity is not more than 20mm) or molding mass form.
In addition, in order to realize the foregoing invention purpose, can comprise according to the preparation method of composite vanadium extraction and dephosphorization agent of the present invention: (1) with raw material pulverizing, wherein raw material comprises lime, ferrous material, magnesian, siliceous material, melting promotor etc.; (2) will be mixed in proportion through the raw material of pulverizing, and stir; (3) will make composite vanadium extraction and dephosphorization agent through the material after evenly mixing.It is 0%～30% CaO, 40%～65% TFe, 3%～15% SiO that made composite vanadium extraction and dephosphorization agent can comprise weight percent
2, 0%～15% MgO and 0%～15% Al
2O
3, surplus is an impurity; Preferably, can comprise weight percent is 10%～30% CaO, 40%～65% TFe, 3%～8% SiO
2, 4%～8% MgO and 8%～12% Al
2O
3, surplus is an impurity.Wherein, in the time will directly packing, can make the composite vanadium extraction and dephosphorization agent of balk cargo form through the material after evenly mixing; When in step (2), adding an amount of binding agent (as clay etc.) and stir, and in step (3), utilize ball press will be through the material compression moulding after evenly mixing the time, can make the composite vanadium extraction and dephosphorization agent of molding mass form.
By following description and the explanation that embodiment is carried out, it is more clear that above-mentioned purpose of the present invention and advantage will become.
Description of drawings
Fig. 1 is the synoptic diagram according to the preparation method of composite vanadium extraction and dephosphorization agent of the present invention.
Embodiment
Can comprise weight percent according to composite vanadium extraction and dephosphorization agent of the present invention is 0%～30% CaO, 40%～65% TFe, 3%～15% SiO
2, 0%～15% MgO and 0%～15% Al
2O
3, surplus is an impurity.Preferably, can comprise weight percent according to composite vanadium extraction and dephosphorization agent of the present invention is 10%～30% CaO, 40%～65% TFe, 3%～8% SiO
2, 4%～8% MgO and 8%～12% Al
2O
3, surplus is an impurity.
Can be used for the vanadium-bearing hot metal that blast furnace or electrosmelting are produced according to composite vanadium extraction and dephosphorization agent of the present invention.Employing composite vanadium extraction and dephosphorization agent according to the present invention is as follows to the technology that vanadium-bearing hot metal carries out vanadium extraction simultaneously, dephosphorization: add a certain proportion of composite vanadium extraction and dephosphorization agent in vanadium-bearing hot metal, and blow vanadium, thereby v-bearing steel slag and low-phosphorous half steel have been obtained by single stepping technology.V-bearing steel slag can be used as the follow-up raw material that v element is recycled, and for example, can handle v-bearing steel slag with water law and extract v element with the form of barium oxide; The low-phosphorous half steel of gained can be used for few slag steel-making and produces low-phosphorous high-quality steel.
As seen, by utilizing this composite vanadium extraction and dephosphorization agent, can carry out vanadium extraction and dephosphorization simultaneously to vanadium-bearing hot metal by single stepping, thereby can either extract the beneficial element vanadium, simultaneously can access low-phosphorous half steel again, make the phosphorus content of molten iron before entering converter be controlled in the suitable scope, the dephosphorization burden when alleviating converter smelting.
Can be balk cargo form or molding mass form according to composite vanadium extraction and dephosphorization agent of the present invention.When composite vanadium extraction and dephosphorization agent was the balk cargo form, its granularity can be not more than 20mm; When composite vanadium extraction and dephosphorization agent was the molding mass form, its granularity can be 5mm～50mm.When utilizing composite vanadium extraction and dephosphorization agent according to the present invention that vanadium-bearing hot metal is carried out the operation of vanadium extraction, dephosphorization simultaneously, the composite vanadium extraction and dephosphorization agent of balk cargo form can be with tank car or is manually dropped into, and the composite vanadium extraction and dephosphorization agent of molding mass form can add by the furnace roof storehouse.
Below with reference to the preparation method of Fig. 1 detailed description according to composite vanadium extraction and dephosphorization agent of the present invention.
Mainly process according to composite vanadium extraction and dephosphorization agent of the present invention by lime, ferrous material, magnesian, siliceous material, melting promotor etc.
At first, with raw material pulverizing.In pulverizing the process of raw material, can be respectively to raw material roughly grind, fine grinding, to make the material that granularity is not more than 20mm.
Secondly, will be mixed in proportion through the raw material of pulverizing, and stir.
At last, will make composite vanadium extraction and dephosphorization agent through the material after evenly mixing.It is 0%～30% CaO, 40%～65% TFe, 3%～15% SiO that prepared composite vanadium extraction and dephosphorization agent can comprise weight percent
2, 0%～15% MgO and 0%～15% Al
2O
3, surplus is an impurity.Preferably, can to comprise weight percent be 10%～30% CaO, 40%～65% TFe, 3%～8% SiO to prepared composite vanadium extraction and dephosphorization agent
2, 4%～8% MgO and 8%～12% Al
2O
3, surplus is an impurity.Wherein, in the time will directly packing through the material after evenly mixing, can make the composite vanadium extraction and dephosphorization agent of balk cargo form, its granularity can be not more than 20mm; When in the mixed step that stirs evenly raw material, adding an amount of binding agent (as clay etc.), and in last step, utilize ball press etc. will be through the material compression moulding after evenly mixed the time, can make the composite vanadium extraction and dephosphorization agent of molding mass form, its granularity can be 5mm～50mm.
After obtaining the composite vanadium extraction and dephosphorization agent of finished product, can carry out production application to the composite vanadium extraction and dephosphorization agent of gained according to the specific requirement at STEELMAKING PRODUCTION scene, so that vanadium-bearing hot metal is carried out vanadium extraction, dephosphorization simultaneously, thereby produce the slag that is rich in vanadium and qualified low-phosphorous half steel.
In order to understand the present invention better, the present invention is further detailed below in conjunction with embodiment.
Example 1:
Adopt the method for the composite vanadium extraction and dephosphorization agent of above-mentioned preparation balk cargo form, prepared the composite vanadium extraction and dephosphorization agent of the different balk cargo form of 10 kinds of components.Described 10 kinds of different components are as shown in table 1, wherein " wt% " expression " weight percent ".
Table 1
| Component | CaO (wt％) | TFe (wt％) | SiO 2 (wt％) | MgO (wt％) | Al 2O 3 (wt％) | Impurity (wt%) |
| 1 | 1％ | 60％ | 8％ | 10％ | 12％ | 9％ |
| 2 | 4％ | 60％ | 6％ | 10％ | 10％ | 10％ |
| 3 | 8％ | 55％ | 6％ | 10％ | 10％ | 11％ |
| 4 | 8％ | 60％ | 15％ | 10％ | 0％ | 7％ |
| 5 | 10％ | 65％ | 5％ | 5％ | 8％ | 7％ |
| 6 | 12％ | 50％ | 10％ | 15％ | 5％ | 8％ |
| 7 | 12％ | 65％ | 3％ | 4％ | 10％ | 6％ |
| 8 | 20％ | 50％ | 5％ | 8％ | 10％ | 7％ |
| 9 | 28％ | 45％ | 6％ | 5％ | 10％ | 6％ |
| 10 | 30％ | 40％ | 5％ | 0％ | 15％ | 10％ |
In 30 tons converter, the composite vanadium extraction and dephosphorization agent that adds the different balk cargo form of above-mentioned 10 kinds of components according to the ratio of molten iron adding 30kg composite vanadium extraction and dephosphorization agent per ton, so that vanadium-bearing hot metal ([V]=0.29%) is carried out while vanadium extraction, dephosphorization, thereby obtain v-bearing steel slag and qualified low-phosphorous half steel.Under the described condition of this embodiment, the composite vanadium extraction and dephosphorization agent of the balk cargo form that these 10 kinds of components are different is as shown in table 2 to the vanadium extraction of vanadium-bearing hot metal and the effect of dephosphorization (that is, vanadium oxidation ratio and dephosphorization rate).Wherein vanadium oxidation ratio and dephosphorization rate are the important parameters of estimating vanadium extraction and dephosphorization pretreatment technology.
Table 2
| Component | CaO (wt％) | TFe (wt％) | SiO 2 (wt％) | MgO (wt％) | Al 2O 3 (wt％) | Frame matter (wt%) | The vanadium oxidation ratio | Dephosphorization rate |
| 1 | 1％ | 60％ | 8％ | 10％ | 12％ | 9％ | 86％ | 20％ |
| 2 | 4％ | 60％ | 6％ | 10％ | 10％ | 10％ | 86％ | 30％ |
| 3 | 8％ | 55％ | 6％ | 10％ | 10％ | 11％ | 85％ | 30％ |
| 4 | 8％ | 60％ | 15％ | 10％ | 0％ | 7％ | 85％ | 30％ |
| 5 | 10％ | 65％ | 5％ | 5％ | 8％ | 7％ | 87％ | 33％ |
| 6 | 12％ | 50％ | 10％ | 15％ | 5％ | 8％ | 85％ | 35％ |
| 7 | 12％ | 65％ | 3％ | 4％ | 10％ | 6％ | 90％ | 35％ |
| 8 | 20％ | 50％ | 5％ | 8％ | 10％ | 7％ | 84％ | 45％ |
| 9 | 28％ | 45％ | 6％ | 5％ | 10％ | 6％ | 83％ | 50％ |
| 10 | 30％ | 40％ | 5％ | 0％ | 15％ | 10％ | 84％ | 65％ |
Embodiment 2:
In this embodiment, the composite vanadium extraction and dephosphorization agent to the different balk cargo form of 10 kinds of components described in the embodiment 1 carries out production application under another condition.Promptly, in 120 tons converter, the composite vanadium extraction and dephosphorization agent that adds the different balk cargo form of above-mentioned 10 kinds of components according to the ratio of molten iron adding 40kg composite vanadium extraction and dephosphorization agent per ton, vanadium-bearing hot metal ([V]=0.40%) is carried out while vanadium extraction, dephosphorization, thereby obtain v-bearing steel slag and qualified low-phosphorous half steel.Under the described condition of this embodiment, the composite vanadium extraction and dephosphorization agent of the balk cargo form that these 10 kinds of components are different is as shown in table 3 to the vanadium extraction of vanadium-bearing hot metal and the effect of dephosphorization (that is, vanadium oxidation ratio and dephosphorization rate).
Table 3
| Component | CaO (wt％) | TFe (wt％) | SiO 2 (wt％) | MgO (wt％) | Al 2O 3 (wt％) | Impurity (wt%) | The vanadium oxidation ratio | Dephosphorization rate |
| 1 | 1％ | 60％ | 8％ | 10％ | 12％ | 9％ | 86％ | 18％ |
| 2 | 4％ | 60％ | 6％ | 10％ | 10％ | 10％ | 85％ | 28％ |
| 3 | 8％ | 55％ | 6％ | 10％ | 10％ | 11％ | 86％ | 40％ |
| 4 | 8％ | 60％ | 15％ | 10％ | 0％ | 7％ | 84％ | 35％ |
| 5 | 10％ | 65％ | 5％ | 5％ | 8％ | 7％ | 86％ | 34％ |
| 6 | 12％ | 50％ | 10％ | 15％ | 5％ | 8％ | 85％ | 34％ |
| 7 | 12％ | 65％ | 3％ | 4％ | 10％ | 6％ | 90％ | 30％ |
| 8 | 20％ | 50％ | 5％ | 8％ | 10％ | 7％ | 88％ | 45％ |
| 9 | 28％ | 45％ | 6％ | 5％ | 10％ | 6％ | 83％ | 50％ |
| 10 | 30％ | 40％ | 5％ | 0％ | 15％ | 10％ | 85％ | 75％ |
Embodiment 3:
Adopt the above-mentioned method that is prepared into the composite vanadium extraction and dephosphorization agent of moulding mixture form, prepared the composite vanadium extraction and dephosphorization agent of the different molding mass form of 10 kinds of components.Described 10 kinds of different components are as shown in table 1.
In 30 tons converter, the composite vanadium extraction and dephosphorization agent that adds the different molding mass form of above-mentioned 10 kinds of components according to the ratio of molten iron adding 30kg composite vanadium extraction and dephosphorization agent per ton, so that vanadium-bearing hot metal ([V]=0.29%) is carried out while vanadium extraction, dephosphorization, thereby obtain v-bearing steel slag and qualified low-phosphorous half steel.Under the described condition of this embodiment, the composite vanadium extraction and dephosphorization agent of the molding mass form that these 10 kinds of components are different is as shown in table 4 to the vanadium extraction of vanadium-bearing hot metal and the effect of dephosphorization (that is, vanadium oxidation ratio and dephosphorization rate).
Table 4
| Component | CaO (wt％) | TFe (wt％) | SiO 2 (wt％) | MgO (wt％) | Al 2O 3 (wt％) | Impurity (wt%) | The vanadium oxidation ratio | Dephosphorization rate |
| 1 | 1％ | 60％ | 8％ | 10％ | 12％ | 9％ | 86％ | 15％ |
| 2 | 4％ | 60％ | 6％ | 10％ | 10％ | 10％ | 86％ | 20％ |
| 3 | 8％ | 55％ | 6％ | 10％ | 10％ | 11％ | 86％ | 40％ |
| 4 | 8％ | 60％ | 15％ | 10％ | 0％ | 7％ | 84％ | 35％ |
| 5 | 10％ | 65％ | 5％ | 5％ | 8％ | 7％ | 93％ | 38％ |
| 6 | 12％ | 50％ | 10％ | 15％ | 5％ | 8％ | 86％ | 35％ |
| 7 | 12％ | 65％ | 3％ | 4％ | 10％ | 6％ | 90％ | 30％ |
| 8 | 20％ | 50％ | 5％ | 8％ | 10％ | 7％ | 88％ | 45％ |
| 9 | 28％ | 45％ | 6％ | 5％ | 10％ | 6％ | 84％ | 75％ |
| 10 | 30％ | 40％ | 5％ | 0％ | 15％ | 10％ | 85％ | 80％ |
Embodiment 4:
In this embodiment, the composite vanadium extraction and dephosphorization agent to the different molding mass form of 10 kinds of components described in the embodiment 3 carries out production application under another condition.Promptly, in 120 tons converter, the composite vanadium extraction and dephosphorization agent that adds the different molding mass form of above-mentioned 10 kinds of components according to the ratio of molten iron adding 40kg composite vanadium extraction and dephosphorization agent per ton, vanadium-bearing hot metal ([V]=0.40%) is carried out while vanadium extraction, dephosphorization, thereby obtain v-bearing steel slag and qualified low-phosphorous half steel.Under the described condition of this embodiment, the composite vanadium extraction and dephosphorization agent of the molding mass form that these 10 kinds of components are different is as shown in table 5 to the vanadium extraction of vanadium-bearing hot metal and the effect of dephosphorization (that is, vanadium oxidation ratio and dephosphorization rate).
Table 5
| Component | CaO (wt％) | TFe (wt％) | SiO 2 (wt％) | MgO (wt％) | Al 2O 3 (wt％) | Impurity (wt%) | The vanadium oxidation ratio | Dephosphorization rate |
| 1 | 1％ | 60％ | 8％ | 10％ | 12％ | 9％ | 88％ | 18％ |
| 2 | 4％ | 60％ | 6％ | 10％ | 10％ | 10％ | 86％ | 22％ |
| 3 | 8％ | 55％ | 6％ | 10％ | 10％ | 11％ | 85％ | 36％ |
| 4 | 8％ | 60％ | 15％ | 10％ | 0％ | 7％ | 84％ | 35％ |
| 5 | 10％ | 65％ | 5％ | 5％ | 8％ | 7％ | 92％ | 40％ |
| 6 | 12％ | 50％ | 10％ | 15％ | 5％ | 8％ | 84％ | 33％ |
| 7 | 12％ | 65％ | 3％ | 4％ | 10％ | 6％ | 89％ | 51％ |
| 8 | 20％ | 50％ | 5％ | 8％ | 10％ | 7％ | 86％ | 46％ |
| 9 | 28％ | 45％ | 6％ | 5％ | 10％ | 6％ | 83％ | 73％ |
| 10 | 30％ | 40％ | 5％ | 0％ | 15％ | 10％ | 83％ | 78％ |
By utilizing according to composite vanadium extraction and dephosphorization agent of the present invention, can carry out vanadium extraction and dephosphorization simultaneously to vanadium-bearing hot metal by single stepping, thereby can either reclaim the beneficial element vanadium, can access low-phosphorous half steel again.In this technology, can realize higher vanadium oxidation ratio and dephosphorization rate.In addition, this technology also has characteristics such as flow process is short, energy consumption is low, workable.
Although some embodiments of the present invention are described, the present invention should not be construed as and is limited to those illustrative embodiments, and within the spirit and scope of the present invention, those of ordinary skills can make variations and modifications.
Claims (10)
1, a kind of composite vanadium extraction and dephosphorization agent is characterized in that comprising weight percent and is 0%～30% CaO, 40%～65% TFe, 3%～15% SiO
2, 0%～15% MgO and 0%～15% Al
2O
3, surplus is an impurity.
2, composite vanadium extraction and dephosphorization agent as claimed in claim 1 is characterized in that comprising weight percent and is 10%～30% CaO, 40%～65% TFe, 3%～8% SiO
2, 4%～8% MgO and 8%～12% Al
2O
3, surplus is an impurity.
3, composite vanadium extraction and dephosphorization agent as claimed in claim 1 or 2 is characterized in that described composite vanadium extraction and dephosphorization agent is the balk cargo form, and wherein the granularity of balk cargo is not more than 20mm.
4, composite vanadium extraction and dephosphorization agent as claimed in claim 1 or 2 is characterized in that described composite vanadium extraction and dephosphorization agent is the molding mass form, and wherein the granularity of molding mass is 5mm～50mm.
5, a kind of preparation method of composite vanadium extraction and dephosphorization agent, it is characterized in that described preparation method comprises: (1) is with raw material pulverizing; (2) will be evenly mixed through the raw material of pulverizing; (3) will make composite vanadium extraction and dephosphorization agent through the material after evenly mixed, wherein, it is 0%～30% CaO, 40%～65% TFe, 3%～15% SiO that described composite vanadium extraction and dephosphorization agent comprises weight percent
2, 0%～15% MgO and 0%～15% Al
2O
3, surplus is an impurity.
6, preparation method as claimed in claim 5 is characterized in that it is 10%～30% CaO, 40%～65% TFe, 3%～8% SiO that described composite vanadium extraction and dephosphorization agent comprises weight percent
2, 4%～8% MgO and 8%～12% Al
2O
3, surplus is an impurity.
7, preparation method as claimed in claim 5 is characterized in that described raw material comprises lime, ferrous material, magnesian, siliceous material and melting promotor.
8, preparation method as claimed in claim 5 is characterized in that the granularity of the raw material that described process is pulverized is not more than 20mm.
9, preparation method as claimed in claim 5 is characterized in that: step (3) comprises with packing through the material after evenly mixing, to make the composite vanadium extraction and dephosphorization agent of balk cargo form.
10, preparation method as claimed in claim 5 is characterized in that: step (2) also comprises the adding binding agent, and stirs; And step (3) comprises the material compression moulding that will pass through after evenly mixing, to make the composite vanadium extraction and dephosphorization agent of molding mass form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101319095A CN101302578B (en) | 2008-06-27 | 2008-06-27 | Composite vanadium extraction and dephosphorization agent for vanadium-containing molten iron and preparation thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101319095A CN101302578B (en) | 2008-06-27 | 2008-06-27 | Composite vanadium extraction and dephosphorization agent for vanadium-containing molten iron and preparation thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101302578A true CN101302578A (en) | 2008-11-12 |
| CN101302578B CN101302578B (en) | 2010-06-16 |
Family
ID=40112677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101319095A Expired - Fee Related CN101302578B (en) | 2008-06-27 | 2008-06-27 | Composite vanadium extraction and dephosphorization agent for vanadium-containing molten iron and preparation thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101302578B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696462B (en) * | 2009-11-03 | 2011-06-29 | 攀钢集团研究院有限公司 | Method for producing low phosphorus steel by smelting semisteel |
| CN102162019A (en) * | 2011-04-06 | 2011-08-24 | 河北钢铁股份有限公司承德分公司 | Multistage combined pretreatment method for vanadium-bearing molten iron |
| CN103060522A (en) * | 2013-02-08 | 2013-04-24 | 武钢集团昆明钢铁股份有限公司 | Slag forming agent for dephosphorization of medium-high-phosphorus semisteel and preparation method of slag forming agent |
| CN103205525A (en) * | 2013-04-15 | 2013-07-17 | 攀钢集团攀枝花钢铁研究院有限公司 | Furnace protective pellet for vanadium extracting converter and manufacturing method thereof |
| CN103525979A (en) * | 2013-10-23 | 2014-01-22 | 攀钢集团攀枝花钢铁研究院有限公司 | Semisteel dephosphorizing agent, semisteel dephosphorizing method and steel smelting method thereof |
| CN103981335A (en) * | 2014-05-30 | 2014-08-13 | 重庆大学 | Vanadium extraction and dephosphorizing agent for vanadium-containing molten iron |
| CN104212943A (en) * | 2014-09-28 | 2014-12-17 | 四川德胜集团钒钛有限公司 | Semisteel smelting technology |
| CN104774994A (en) * | 2015-03-31 | 2015-07-15 | 河北钢铁股份有限公司承德分公司 | Vanadium pentoxide extraction and synchronous dephosphorization method for vanadium-containing molten iron |
| CN104789731A (en) * | 2015-05-20 | 2015-07-22 | 攀钢集团攀枝花钢铁研究院有限公司 | Semi-steel steelmaking and slagging agent and slagging method thereof |
| CN104878222A (en) * | 2015-06-09 | 2015-09-02 | 钢铁研究总院 | Hot-metal-ladle vanadium extraction method |
| CN110283965A (en) * | 2019-07-31 | 2019-09-27 | 西安建筑科技大学 | A kind of Dephosphorising agent and its preparation and application for hot metal containing low silicon steel-making |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039832C (en) * | 1995-10-16 | 1998-09-16 | 李林 | Dephosphorization agent for steel foam |
| CN1275625A (en) * | 2000-06-07 | 2000-12-06 | 昆明理工大学 | Semi-steel dephosphorizing desulfurizing steel-making technology |
| CN100383256C (en) * | 2005-03-31 | 2008-04-23 | 宝山钢铁股份有限公司 | Dephosphorization agent for chromium-containing molten iron |
| CN1873031A (en) * | 2006-04-28 | 2006-12-06 | 吴秋华 | Dephosphorization agent for converter, and preparation method |
-
2008
- 2008-06-27 CN CN2008101319095A patent/CN101302578B/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696462B (en) * | 2009-11-03 | 2011-06-29 | 攀钢集团研究院有限公司 | Method for producing low phosphorus steel by smelting semisteel |
| CN102162019A (en) * | 2011-04-06 | 2011-08-24 | 河北钢铁股份有限公司承德分公司 | Multistage combined pretreatment method for vanadium-bearing molten iron |
| CN103060522A (en) * | 2013-02-08 | 2013-04-24 | 武钢集团昆明钢铁股份有限公司 | Slag forming agent for dephosphorization of medium-high-phosphorus semisteel and preparation method of slag forming agent |
| CN103060522B (en) * | 2013-02-08 | 2015-11-25 | 武钢集团昆明钢铁股份有限公司 | A kind of slag former and preparation method being applicable to middle high phosphorus semi-steel dephosphorizing |
| CN103205525A (en) * | 2013-04-15 | 2013-07-17 | 攀钢集团攀枝花钢铁研究院有限公司 | Furnace protective pellet for vanadium extracting converter and manufacturing method thereof |
| CN103205525B (en) * | 2013-04-15 | 2015-04-29 | 攀钢集团攀枝花钢铁研究院有限公司 | Furnace protective pellet for vanadium extracting converter and manufacturing method thereof |
| CN103525979A (en) * | 2013-10-23 | 2014-01-22 | 攀钢集团攀枝花钢铁研究院有限公司 | Semisteel dephosphorizing agent, semisteel dephosphorizing method and steel smelting method thereof |
| CN103525979B (en) * | 2013-10-23 | 2015-02-25 | 攀钢集团攀枝花钢铁研究院有限公司 | Semisteel dephosphorizing agent, semisteel dephosphorizing method and steel smelting method thereof |
| CN103981335B (en) * | 2014-05-30 | 2015-11-18 | 重庆大学 | A kind of vanadium-bearing hot metal vanadium extraction and dephosphorization agent |
| CN103981335A (en) * | 2014-05-30 | 2014-08-13 | 重庆大学 | Vanadium extraction and dephosphorizing agent for vanadium-containing molten iron |
| CN104212943A (en) * | 2014-09-28 | 2014-12-17 | 四川德胜集团钒钛有限公司 | Semisteel smelting technology |
| CN104774994A (en) * | 2015-03-31 | 2015-07-15 | 河北钢铁股份有限公司承德分公司 | Vanadium pentoxide extraction and synchronous dephosphorization method for vanadium-containing molten iron |
| CN104789731A (en) * | 2015-05-20 | 2015-07-22 | 攀钢集团攀枝花钢铁研究院有限公司 | Semi-steel steelmaking and slagging agent and slagging method thereof |
| CN104878222A (en) * | 2015-06-09 | 2015-09-02 | 钢铁研究总院 | Hot-metal-ladle vanadium extraction method |
| CN110283965A (en) * | 2019-07-31 | 2019-09-27 | 西安建筑科技大学 | A kind of Dephosphorising agent and its preparation and application for hot metal containing low silicon steel-making |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101302578B (en) | 2010-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101302578B (en) | Composite vanadium extraction and dephosphorization agent for vanadium-containing molten iron and preparation thereof | |
| CN101560586B (en) | Compound dephosphorization agent with converter slag as raw material and preparing method thereof | |
| CN101805827A (en) | Purpose of heavy metal sludge, acid pellet and preparation method and purpose thereof | |
| CN102010933A (en) | Molten iron dephosphorization agent manufactured by using converter dry-method dust-removal ash as raw material | |
| CN104789718A (en) | Steel slag recycling method | |
| CN101906500A (en) | Method for directly producing chrome-base alloy steel by comprehensively using calcium-free chrome slag | |
| CN101892352B (en) | Arc furnace deep dephosphorization technology and deep dephosphorization agent thereof | |
| CN102634718B (en) | Preparation process for organically-combined fluorite ball | |
| CN103725825A (en) | Aluminum industrial red mud-based dephosphorizing agent for converter steelmaking and preparation method thereof | |
| CN107881284A (en) | A kind of method of red mud production converter slagging agent | |
| CN108018417A (en) | Steelmaking converter slagging agent and preparation method thereof | |
| CN101824503A (en) | Method for producing vanadiferous pigiron by adopting vanadiferous converter steel slag | |
| CN105506226A (en) | Method for carrying out pre-desiliconization, pre-decarburization and pre-dephosphorization on molten iron in molten iron tank | |
| CN105385807A (en) | Method for manufacturing silicon and carbon composite balls through waste mortar generated during silicon slice cutting and application of silicon and carbon composite ball | |
| CN104673965A (en) | On-line molten steel slag modification method | |
| CN105238893B (en) | A kind of method that solid waste containing vanadium sinters blast furnace ironmaking with ore deposit | |
| CN102296152A (en) | Novel converter steelmaking dephosphorization agent and preparation method thereof | |
| CN111826498A (en) | Additive for increasing strength of deformed steel bar and preparation method and application thereof | |
| CN104651553B (en) | Steel slag modifier | |
| CN115261617B (en) | LF refining slag recycling technology and application thereof | |
| CN105200192A (en) | Liquid steel refining slag and preparation method and application thereof | |
| CN103031409A (en) | Novel process of steelmaking deoxidization by utilizing precipitator dust of refining furnace | |
| CN104099467A (en) | Technology for producing regenerated, cured and formed manganese ore blocks by using manganese-silicon alloy smelting industrial fumes | |
| CN114163147A (en) | Method for reducing free calcium oxide in steel slag by using nickel-iron slag and application thereof | |
| CN106755980A (en) | Coal-pressing ball and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: PANZHIHUA NEW STEEL AND VANADIUM CO., LTD. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20100329 Address after: 617000 No. 90, Taoyuan street, Panzhihua, Sichuan Applicant after: Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd. Applicant after: Panzhihua New Steel & Vanadium Co., Ltd. Address before: 617000 No. 90, Taoyuan street, Panzhihua, Sichuan Applicant before: Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20160627 |