CN111876620A - Titanium element additive and preparation method thereof - Google Patents
Titanium element additive and preparation method thereof Download PDFInfo
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- CN111876620A CN111876620A CN202010705756.1A CN202010705756A CN111876620A CN 111876620 A CN111876620 A CN 111876620A CN 202010705756 A CN202010705756 A CN 202010705756A CN 111876620 A CN111876620 A CN 111876620A
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
Abstract
The invention provides a titanium additive and a preparation method thereof, wherein the titanium additive comprises the following raw material components: titanium powder; fluxing agent; wherein the fluxing agent comprises fluorine salt powder, potassium chloride and sodium sulfate; the mass percentage of the titanium powder is 30 to 70. According to the titanium element additive provided by the invention, the formula is optimized, and the fluxing agent is prepared by selecting the villiaumite powder, the potassium chloride and the sodium sulfate, so that after the titanium element additive is put into the aluminum liquid, an aluminum alloy oxide film can be removed, the surface spreadability in the aluminum liquid is good, the titanium powder can be accelerated to be melted in the aluminum liquid, the absorption rate (melting rate) of titanium is further improved, and the actual yield of titanium in the aluminum liquid can reach more than 90%.
Description
Technical Field
The invention relates to the technical field of metal processing, in particular to a titanium element additive and a preparation method of the titanium element additive.
Background
Titanium is the most common additive in aluminum alloy, and can improve the mechanical property of aluminum alloy castings, improve the density of the castings and reduce the shrinkage porosity and cracks of the castings. The existing titanium element additive has the problem that the actual yield of titanium in aluminum liquid is low and is generally only 80 to 85 percent when in use.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
To this end, the invention provides, in a first aspect, an additive of elemental titanium.
The invention provides a preparation method of a titanium element additive in a second aspect.
In view of the above, according to the first aspect of the present invention, a titanium additive is provided, wherein the raw material composition of the titanium additive comprises: titanium powder; fluxing agent; wherein the fluxing agent comprises fluorine salt powder, potassium chloride and sodium sulfate; the mass percentage of the titanium powder is 30 to 70.
According to the titanium element additive provided by the invention, the formula is optimized, and the fluxing agent is prepared by selecting the villiaumite powder, the potassium chloride and the sodium sulfate, so that after the titanium element additive is put into the aluminum liquid, an aluminum alloy oxide film can be removed, the surface spreadability in the aluminum liquid is good, the titanium powder can be accelerated to be melted in the aluminum liquid, the absorption rate (melting rate) of titanium is further improved, and the actual yield of titanium in the aluminum liquid can reach more than 90%.
In addition, according to the titanium additive in the above technical solution provided by the present invention, the following additional technical features can be provided:
in the above technical solution, further, the fluorine salt powder includes: fluoride salt slag powder generated in the process of preparing aluminum titanium boron by a fluoride salt method; aluminum fluoride.
In the technical scheme, the composition of the villiaumite powder is further provided, and the villiaumite powder comprises villiaumite slag powder and aluminum fluoride generated in the process of preparing the aluminum-titanium-boron by the villiaumite method.
Specifically, in the production process of preparing aluminum-titanium-boron by a villiaumite method, a large amount of villiaumite slag is generated, and the villiaumite slag is used as solid waste of a factory to be stacked for a long time, so that serious environmental pollution is caused, and material waste is also caused. The invention takes the villiaumite slag generated in the production process of the aluminum titanium boron as the raw material for preparing the titanium element additive, improves the actual yield of titanium in the aluminum liquid, simultaneously utilizes the waste, avoids the environmental pollution and improves the utilization rate of the material.
In any of the above technical solutions, further, the fluoride slag powder includes potassium tetrafluoroaluminate and potassium hexafluoroaluminate.
In the technical scheme, the composition of the fluorine salt slag powder is further provided, and the fluorine salt slag powder comprises potassium tetrafluoroaluminate (KAlF)4) And potassium hexafluoroaluminate (K)3AlF6). The melting point of the potassium tetrafluoroaluminate is 560-570 ℃, and the potassium tetrafluoroaluminate is KF-AlF3The binary eutectic point composition has strong capability of removing an aluminum alloy oxide film, good spreadability on the surface of the aluminum liquid and acceleration of the melting of the metal titanium powder in the aluminum liquid; the potassium hexafluoroaluminate is mixed with aluminum fluoride and can be converted into potassium tetrafluoroaluminate (KAlF) at the temperature of 560-4)：K3AlF6+2AlF3＝3KAlF4. The use temperature of the titanium element additive in the aluminum liquid is generally 720-760 ℃, potassium hexafluoroaluminate contained in the fluoride salt slag is basically converted into potassium tetrafluoroaluminate in the aluminum liquid alloying process after aluminum fluoride is added, and the actual yield of titanium in the aluminum liquid can be further improved.
In any of the above technical solutions, further, the mass percentage of the fluorine salt slag powder to the total mass of the flux is 40 to 60.
In the technical scheme, the use amount of the villiaumite slag powder is further provided, the efficiency of removing the aluminum alloy oxide film can be further improved through the selection of the use amount, the surface spreading performance in the aluminum liquid is better, and the titanium powder can be further accelerated to be melted in the aluminum liquid.
In any of the above technical solutions, further, the mass percentage of the aluminum fluoride with respect to the total mass of the flux is 10 to 30.
In the technical scheme, the dosage of the aluminum fluoride is further provided, and by selecting the dosage, enough aluminum fluoride can react with potassium hexafluoroaluminate in the fluorine salt slag powder to generate potassium tetrafluoroaluminate in the use process of the titanium element additive, so that the practical yield of titanium in aluminum liquid can be guaranteed.
In any of the above technical solutions, the mass percentage of the potassium chloride with respect to the total mass of the flux is further 10 to 30.
In the technical scheme, the using amount of potassium chloride is further provided, the efficiency of removing the aluminum alloy oxide film can be further improved by selecting the using amount, the surface spreading performance in the aluminum liquid is better, and the titanium powder melting in the aluminum liquid can be further accelerated.
In any of the above technical solutions, the mass percentage of the sodium sulfate with respect to the total mass of the flux is further 5 to 15.
In the technical scheme, the use amount of sodium sulfate is further provided, the efficiency of removing the aluminum alloy oxide film can be further improved by selecting the use amount, the surface spreadability in the aluminum liquid is better, and the titanium powder melting in the aluminum liquid can be further accelerated.
According to a second aspect of the present invention, a method for preparing a titanium additive is provided, which comprises:
obtaining titanium powder and a fluxing agent according to the raw material component proportion of the titanium element additive in any technical scheme; mixing titanium powder and a fluxing agent to obtain a mixed raw material; and pressing the mixed raw materials to obtain the titanium element additive.
According to the preparation method of the titanium element additive, the raw material component ratio of the titanium element additive in any technical scheme is used, so that the preparation method of the titanium element additive has all the beneficial technical effects of the titanium element additive.
According to the preparation method of the titanium element additive, the titanium powder and the fluxing agent are mixed, so that the titanium powder is uniformly distributed in the titanium element additive, and the melting rate of the titanium powder can be improved in the using process of the prepared titanium element additive, and further the actual yield of titanium in the molten aluminum is improved.
According to the preparation method of the titanium element additive, the titanium element additive is obtained by pressing the mixed raw materials, so that the storage of the titanium element additive is facilitated, and meanwhile, the titanium element additive is conveniently put into molten aluminum in the using process.
Specifically, the mixed raw materials may be pressed by a briquetting machine to obtain 0.5kg of a titanium element additive in a cake shape. Further, the flatbread machine may be a 4000KN flatbread machine.
In addition, according to the preparation method of the titanium element additive in the technical scheme provided by the invention, the following additional technical characteristics can be provided:
in the above technical solution, further, before the step of obtaining titanium powder and a flux according to the raw material component ratio of the titanium element additive in any one of the above technical solutions, the method further includes: obtaining fluoride salt slag generated in the process of preparing aluminum-titanium-boron by a fluoride salt method; crushing the fluoride salt slag to obtain fluoride salt blocks; grinding the villiaumite blocks to obtain villiaumite slag powder; wherein the grain diameter of the villiaumite slag powder is 100 meshes to 150 meshes.
In the technical scheme, the villiaumite slag powder is obtained by crushing villiaumite slag generated in the process of preparing the aluminum-titanium-boron by the villiaumite method and then grinding, so that the fineness of the villiaumite slag powder can be ensured, the opportunity of contacting the villiaumite slag powder with titanium powder, potassium chloride and sodium sulfate is improved, the villiaumite slag powder is uniformly distributed in the prepared titanium element additive, the melting rate of the titanium powder can be improved in the using process of the prepared titanium element additive, and the actual yield of titanium in the aluminum liquid is further improved.
Specifically, villiaumite slag generated in the process of preparing aluminum-titanium-boron by a villiaumite method can be crushed by a jaw crusher to obtain villiaumite blocks with the particle size of 20mm to 30mm, the villiaumite blocks are further ball-milled by a ball mill to obtain villiaumite slag powder with the particle size of 100 meshes to 150 meshes, and through selection of the jaw crusher, the ball-milling processing time can be shortened, so that energy can be saved, and the preparation cost of the titanium element additive can be reduced.
In any of the above technical solutions, further, the step of mixing the titanium powder and the flux to obtain a mixed raw material specifically includes: stirring the fluxing agent at the temperature of 100-200 ℃ to obtain the fluxing agent with the water content of less than 0.5%; mixing a fluxing agent with the water content of less than 0.5% with titanium powder to obtain a mixed raw material; wherein the stirring time is 1-3 h.
In the technical scheme, the specific steps of mixing the titanium powder and the fluxing agent are further provided, the fluxing agent is stirred for 1h to 3h at the temperature of 100 ℃ to 200 ℃ to obtain the fluxing agent with the water content of less than 0.5%, then the fluxing agent with the water content of less than 0.5% is mixed with the titanium powder to obtain the titanium element additive with better quality, and hydrogen absorption and oxidation can be prevented when aluminum liquid meets water in the process of putting the titanium element additive into the aluminum liquid by obtaining the fluxing agent with the water content of less than 0.5%.
Specifically, the flux and the titanium powder may be mixed by a V-type mixer to obtain a mixed raw material.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a schematic flow diagram of a method for preparing an elemental titanium additive according to one embodiment of the invention;
FIG. 2 shows a schematic flow diagram of a method for preparing an elemental titanium additive according to yet another embodiment of the invention;
FIG. 3 shows a schematic flow diagram of a method for preparing an elemental titanium additive according to another embodiment of the invention;
FIG. 4 is a schematic flow chart showing a method for preparing an elemental titanium additive according to specific example 1 of the present invention;
FIG. 5 is a schematic flow chart showing a method for preparing an elemental titanium additive according to specific example 2 of the present invention;
FIG. 6 is a schematic flow chart showing a method for preparing an elemental titanium additive according to specific example 3 of the present invention;
FIG. 7 is a schematic flow chart showing a method for preparing an elemental titanium additive according to specific example 4 of the present invention;
FIG. 8 is a schematic flow chart showing a method for preparing an elemental titanium additive according to specific example 5 of the present invention;
FIG. 9 is a schematic flow chart showing a method for preparing an elemental titanium additive according to specific example 6 of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Elemental titanium additives and elemental titanium additives according to some embodiments of the invention are described below with reference to fig. 1-9.
Example one
One embodiment of the present invention provides a titanium additive, wherein the raw material components of the titanium additive comprise: titanium powder; fluxing agent; wherein the fluxing agent comprises fluorine salt powder, potassium chloride and sodium sulfate; the mass percentage of the titanium powder is 30 to 70.
According to the titanium element additive provided by the invention, the formula is optimized, and the fluxing agent is prepared by selecting the villiaumite powder, the potassium chloride and the sodium sulfate, so that after the titanium element additive is put into the aluminum liquid, an aluminum alloy oxide film can be removed, the surface spreadability in the aluminum liquid is good, the titanium powder can be accelerated to be melted in the aluminum liquid, the absorption rate (melting rate) of titanium is further improved, and the actual yield of titanium in the aluminum liquid can reach more than 90%.
Example two
One embodiment of the present invention provides a titanium additive, wherein the raw material components of the titanium additive comprise: titanium powder; fluxing agent; wherein the fluxing agent comprises fluorine salt powder, potassium chloride and sodium sulfate; the mass percentage of the titanium powder is 30 to 70.
Further, the fluorine salt powder includes: fluoride salt slag powder generated in the process of preparing aluminum titanium boron by a fluoride salt method; aluminum fluoride.
In the embodiment, the composition of the fluorine salt powder is further provided, and the fluorine salt powder comprises fluorine salt slag powder and aluminum fluoride generated in the process of preparing the aluminum-titanium-boron by the fluorine salt method.
Specifically, in the production process of preparing aluminum-titanium-boron by a villiaumite method, a large amount of villiaumite slag is generated, and the villiaumite slag is used as solid waste of a factory to be stacked for a long time, so that serious environmental pollution is caused, and material waste is also caused. The invention takes the villiaumite slag generated in the production process of the aluminum titanium boron as the raw material for preparing the titanium element additive, improves the actual yield of titanium in the aluminum liquid, simultaneously utilizes the waste, avoids the environmental pollution and improves the utilization rate of the material.
EXAMPLE III
One embodiment of the present invention provides a titanium additive, wherein the raw material components of the titanium additive comprise: titanium powder; fluxing agent; wherein the fluxing agent comprises fluorine salt powder, potassium chloride and sodium sulfate; the mass percentage of the titanium powder is 30 to 70.
Further, the fluorine salt powder includes: fluoride salt slag powder generated in the process of preparing aluminum titanium boron by a fluoride salt method; aluminum fluoride.
Further, the fluoride slag powder includes potassium tetrafluoroaluminate and potassium hexafluoroaluminate.
In this embodiment, the composition of the fluorine salt slag powder is further provided, and the fluorine salt slag powder comprises potassium tetrafluoroaluminate (KAlF)4) And potassium hexafluoroaluminate (K)3AlF6). The melting point of the potassium tetrafluoroaluminate is 560-570 ℃, and the potassium tetrafluoroaluminate is KF-AlF3The binary eutectic point composition has strong capability of removing an aluminum alloy oxide film, good spreadability on the surface of the aluminum liquid and acceleration of the melting of the metal titanium powder in the aluminum liquid; the potassium hexafluoroaluminate is mixed with aluminum fluoride and can be converted into potassium tetrafluoroaluminate (KAlF) at the temperature of 560-4)：K2AlF6+2AlF3＝3KAlF4. The use temperature of the titanium element additive in the aluminum liquid is generally 720-760 ℃, potassium hexafluoroaluminate contained in the fluoride salt slag is basically converted into potassium tetrafluoroaluminate in the aluminum liquid alloying process after aluminum fluoride is added, and the actual yield of titanium in the aluminum liquid can be further improved.
Example four
On the basis of the second embodiment or the third embodiment, the mass percentage of the fluorine salt slag powder relative to the total mass of the fluxing agent is further 40 to 60.
In the embodiment, the use amount of the villiaumite slag powder is further provided, the efficiency of removing the aluminum alloy oxide film can be further improved through the selection of the use amount, the surface spreading performance in the aluminum liquid is better, and the titanium powder melting in the aluminum liquid can be further accelerated.
EXAMPLE five
On the basis of the second or third embodiment, the percentage by mass of the aluminum fluoride with respect to the total mass of the flux is further 10 to 30.
In the embodiment, the dosage of the aluminum fluoride is further provided, and the dosage is selected to ensure that enough aluminum fluoride can react with potassium hexafluoroaluminate in the villiaumite slag powder to generate potassium tetrafluoroaluminate in the use process of the titanium element additive, so that the practical yield of titanium in aluminum liquid can be ensured.
EXAMPLE six
On the basis of any of the above embodiments, further, the mass percentage of the potassium chloride with respect to the total mass of the flux is 10 to 30.
In the embodiment, the dosage of potassium chloride is further provided, the efficiency of removing the aluminum alloy oxide film can be further improved by selecting the dosage, the surface spreadability in the aluminum liquid is better, and the titanium powder melting in the aluminum liquid can be further accelerated.
EXAMPLE seven
On the basis of any of the above embodiments, further, the mass percentage of the sodium sulfate with respect to the total mass of the flux is 5 to 15.
In the embodiment, the dosage of sodium sulfate is further provided, the efficiency of removing the aluminum alloy oxide film can be further improved by selecting the dosage, the surface spreadability in the aluminum liquid is better, and the titanium powder melting in the aluminum liquid can be further accelerated.
Example eight
As shown in fig. 1, one embodiment of the present invention provides a method for preparing a titanium additive, including:
step 102: obtaining titanium powder and a fluxing agent according to the raw material component proportion of the titanium element additive in any embodiment;
step 104: mixing titanium powder and a fluxing agent to obtain a mixed raw material;
step 106: and pressing the mixed raw materials to obtain the titanium element additive.
According to the preparation method of the titanium element additive, the raw material component ratio of the titanium element additive in any embodiment is used, so that the preparation method of the titanium element additive has all the beneficial technical effects of the titanium element additive.
According to the preparation method of the titanium element additive, the titanium powder and the fluxing agent are mixed, so that the titanium powder is uniformly distributed in the titanium element additive, and the melting rate of the titanium powder can be improved in the using process of the prepared titanium element additive, and further the actual yield of titanium in the molten aluminum is improved.
According to the preparation method of the titanium element additive, the titanium element additive is obtained by pressing the mixed raw materials, so that the storage of the titanium element additive is facilitated, and meanwhile, the titanium element additive is conveniently put into molten aluminum in the using process.
Specifically, the mixed raw materials may be pressed by a briquetting machine to obtain 0.5kg of a titanium element additive in a cake shape. Further, the flatbread machine may be a 4000KN flatbread machine.
Example nine
As shown in fig. 2, an embodiment of the present invention provides a method for preparing a titanium additive, including:
step 202: obtaining fluoride salt slag generated in the process of preparing aluminum-titanium-boron by a fluoride salt method;
step 204: crushing the fluoride salt slag to obtain fluoride salt blocks;
step 206: grinding the villiaumite blocks to obtain villiaumite slag powder;
step 208: obtaining titanium powder and a fluxing agent according to the raw material component proportion of the titanium element additive in any embodiment;
step 210: mixing titanium powder and a fluxing agent to obtain a mixed raw material;
step 212: and pressing the mixed raw materials to obtain the titanium element additive.
Wherein the grain diameter of the villiaumite slag powder is 100 meshes to 150 meshes.
In the embodiment, the villiaumite slag powder is obtained by crushing villiaumite slag generated in the process of preparing the aluminum-titanium-boron by the villiaumite method and then grinding, so that the fineness of the villiaumite slag powder can be ensured, the opportunity of contacting the villiaumite slag powder with the titanium powder, the potassium chloride and the sodium sulfate is improved, the villiaumite slag powder is uniformly distributed in the prepared titanium element additive, the melting rate of the titanium powder can be improved in the use process of the prepared titanium element additive, and the actual yield of the titanium in the aluminum liquid is further improved.
Specifically, villiaumite slag generated in the process of preparing aluminum-titanium-boron by a villiaumite method can be crushed by a jaw crusher to obtain villiaumite blocks with the particle size of 20mm to 30mm, the villiaumite blocks are further ball-milled by a ball mill to obtain villiaumite slag powder with the particle size of 100 meshes to 150 meshes, and through selection of the jaw crusher, the ball-milling processing time can be shortened, so that energy can be saved, and the preparation cost of the titanium element additive can be reduced.
Example ten
As shown in fig. 3, an embodiment of the present invention provides a method for preparing a titanium additive, including:
step 302: obtaining titanium powder and a fluxing agent according to the raw material component proportion of the titanium element additive in any embodiment;
step 304: stirring the fluxing agent at the temperature of 100-200 ℃ to obtain the fluxing agent with the water content of less than 0.5%;
step 306: mixing a fluxing agent with the water content of less than 0.5% with titanium powder to obtain a mixed raw material;
step 308: and pressing the mixed raw materials to obtain the titanium element additive.
Wherein the stirring time is 1-3 h.
In the embodiment, a specific step of mixing titanium powder and a fluxing agent is further provided, the fluxing agent is stirred for 1h to 3h at 100 ℃ to 200 ℃ to obtain the fluxing agent with the water content of less than 0.5%, then the fluxing agent with the water content of less than 0.5% is mixed with the titanium powder to obtain the titanium element additive with better quality, and hydrogen absorption and oxidation of aluminum liquid in the process of putting the titanium element additive into the aluminum liquid can be prevented by obtaining the fluxing agent with the water content of less than 0.5%.
Specifically, the flux and the titanium powder may be mixed by a V-type mixer to obtain a mixed raw material.
Detailed description of the preferred embodiment 1
One embodiment of the present invention provides a titanium element additive comprising: titanium powder and a fluxing agent.
Wherein the fluxing agent comprises fluorine salt powder, potassium chloride and sodium sulfate;
the mass percent of the titanium powder is 30, and the mass percent of the fluxing agent is 70.
Further, the fluorine salt powder includes: fluoride salt slag powder and aluminum fluoride generated in the process of preparing aluminum-titanium-boron by a fluoride salt method.
Wherein the fluoride slag powder comprises potassium tetrafluoroaluminate and potassium hexafluoroaluminate.
Wherein, the mass percent of the fluorine salt slag powder relative to the total mass of the fluxing agent is 40, the mass percent of the aluminum fluoride relative to the total mass of the fluxing agent is 30, the mass percent of the potassium chloride relative to the total mass of the fluxing agent is 20, and the mass percent of the sodium sulfate relative to the total mass of the fluxing agent is 10.
As shown in fig. 4, the preparation method of the titanium element additive comprises the following steps:
step 402: obtaining fluoride salt slag generated in the process of preparing aluminum-titanium-boron by a fluoride salt method;
step 404: crushing the fluoride salt slag to obtain fluoride salt blocks;
step 406: grinding the villiaumite blocks to obtain villiaumite slag powder;
step 408: obtaining titanium powder and a fluxing agent according to the raw material component proportion of the titanium element additive;
step 410: stirring the fluxing agent for 2 hours at the temperature of 100 ℃ to obtain the fluxing agent with the water content of less than 0.5 percent;
step 412: mixing a fluxing agent with the water content of less than 0.5% with titanium powder to obtain a mixed raw material;
step 414: and pressing the mixed raw materials to obtain the titanium element additive.
Specific example 2
One embodiment of the present invention provides a titanium element additive comprising: titanium powder and a fluxing agent.
Wherein the fluxing agent comprises fluoride salt powder, potassium chloride and sodium sulfate;
the mass percent of the titanium powder is 50, and the mass percent of the fluxing agent is 50.
Further, the fluorine salt powder includes: fluoride salt slag powder and aluminum fluoride generated in the process of preparing aluminum-titanium-boron by a fluoride salt method.
Wherein the fluoride slag powder comprises potassium tetrafluoroaluminate and potassium hexafluoroaluminate.
Wherein, the mass percent of the fluorine salt slag powder relative to the total mass of the fluxing agent is 60, the mass percent of the aluminum fluoride relative to the total mass of the fluxing agent is 10, the mass percent of the potassium chloride relative to the total mass of the fluxing agent is 25, and the mass percent of the sodium sulfate relative to the total mass of the fluxing agent is 15.
As shown in fig. 5, the preparation method of the titanium element additive comprises the following steps:
step 502: obtaining fluoride salt slag generated in the process of preparing aluminum-titanium-boron by a fluoride salt method;
step 504: crushing the fluoride salt slag to obtain fluoride salt blocks;
step 506: grinding the villiaumite blocks to obtain villiaumite slag powder;
step 508: obtaining titanium powder and a fluxing agent according to the raw material component proportion of the titanium element additive;
step 510: stirring the fluxing agent for 1h at the temperature of 200 ℃ to obtain the fluxing agent with the water content of less than 0.5%;
step 512: mixing a fluxing agent with the water content of less than 0.5% with titanium powder to obtain a mixed raw material;
step 514: and pressing the mixed raw materials to obtain the titanium element additive.
Specific example 3
One embodiment of the present invention provides a titanium element additive comprising: titanium powder and a fluxing agent.
Wherein the fluxing agent comprises fluoride salt powder, potassium chloride and sodium sulfate;
the mass percent of the titanium powder is 70, and the mass percent of the fluxing agent is 30.
Further, the fluorine salt powder includes: fluoride salt slag powder and aluminum fluoride generated in the process of preparing aluminum-titanium-boron by a fluoride salt method.
Wherein the fluoride slag powder comprises potassium tetrafluoroaluminate and potassium hexafluoroaluminate.
The mass percent of the fluorine salt slag powder relative to the total mass of the fluxing agent is 50, the mass percent of the aluminum fluoride relative to the total mass of the fluxing agent is 30, the mass percent of the potassium chloride relative to the total mass of the fluxing agent is 15, and the mass percent of the sodium sulfate relative to the total mass of the fluxing agent is 5.
As shown in fig. 6, the preparation method of the titanium element additive comprises the following steps:
step 602: obtaining fluoride salt slag generated in the process of preparing aluminum-titanium-boron by a fluoride salt method;
step 604: crushing the fluoride salt slag to obtain fluoride salt blocks;
step 606: grinding the villiaumite blocks to obtain villiaumite slag powder;
step 608: obtaining titanium powder and a fluxing agent according to the raw material component proportion of the titanium element additive;
step 610: stirring the fluxing agent for 1.5h at the temperature of 150 ℃ to obtain the fluxing agent with the water content of less than 0.5%;
step 612: mixing a fluxing agent with the water content of less than 0.5% with titanium powder to obtain a mixed raw material;
step 614: and pressing the mixed raw materials to obtain the titanium element additive.
Specific example 4
One embodiment of the present invention provides a titanium element additive comprising: titanium powder and a fluxing agent.
Wherein the fluxing agent comprises fluoride salt powder, potassium chloride and sodium sulfate;
the mass percent of the titanium powder is 30, and the mass percent of the fluxing agent is 70.
Further, the fluorine salt powder includes: fluoride salt slag powder and aluminum fluoride generated in the process of preparing aluminum-titanium-boron by a fluoride salt method.
Wherein the fluoride slag powder comprises potassium tetrafluoroaluminate and potassium hexafluoroaluminate.
The mass percent of the fluorine salt slag powder relative to the total mass of the fluxing agent is 50, the mass percent of the aluminum fluoride relative to the total mass of the fluxing agent is 20, the mass percent of the potassium chloride relative to the total mass of the fluxing agent is 20, and the mass percent of the sodium sulfate relative to the total mass of the fluxing agent is 10.
As shown in fig. 7, the preparation method of the titanium element additive comprises the following steps:
step 702: crushing solid fluoride salt slag generated in the aluminum-titanium-boron production into fluoride salt blocks with the particle size of about 30mm by using a jaw crusher, and grinding the fluoride salt blocks into fluoride salt slag powder of 150 meshes by using a ball mill;
step 704: obtaining a fluxing agent raw material according to the raw material component proportion, and putting the fluxing agent raw material into a drying stirrer, wherein the drying temperature is 120 ℃, and the stirring time is 2 hours, so as to prepare the fluxing agent;
step 706: obtaining titanium powder according to the raw material component proportion;
step 708: fully mixing the fluxing agent and the titanium powder mixer to obtain a mixed raw material;
step 710: the mixed raw materials are pressed into a cake-shaped titanium element additive with the weight of 0.5kg by a 4000KN cake press.
Specific example 5
One embodiment of the present invention provides a titanium element additive comprising: titanium powder and a fluxing agent.
Wherein the fluxing agent comprises fluoride salt powder, potassium chloride and sodium sulfate;
the mass percent of the titanium powder is 50, and the mass percent of the fluxing agent is 50.
Further, the fluorine salt powder includes: fluoride salt slag powder and aluminum fluoride generated in the process of preparing aluminum-titanium-boron by a fluoride salt method.
Wherein the fluoride slag powder comprises potassium tetrafluoroaluminate and potassium hexafluoroaluminate.
Wherein, the mass percent of the fluorine salt slag powder relative to the total mass of the fluxing agent is 50, the mass percent of the aluminum fluoride relative to the total mass of the fluxing agent is 25, the mass percent of the potassium chloride relative to the total mass of the fluxing agent is 20, and the mass percent of the sodium sulfate relative to the total mass of the fluxing agent is 5.
As shown in fig. 8, the preparation method of the titanium element additive comprises the following steps:
step 802: crushing solid fluoride salt slag generated in the aluminum-titanium-boron production into fluoride salt blocks with the particle size of 20mm by using a jaw crusher, and putting the fluoride salt blocks into a ball mill to grind into fluoride salt slag powder with the particle size of 120 meshes;
step 804: obtaining a fluxing agent raw material according to the raw material component proportion, and putting the fluxing agent raw material into a drying stirrer, wherein the drying temperature is 100 ℃, and the stirring time is 2 hours, so as to prepare the fluxing agent;
step 808: fully mixing the fluxing agent and the titanium powder mixer to obtain a mixed raw material;
step 810: the mixed raw materials are pressed into a cake-shaped titanium element additive with the weight of 0.5kg by a 4000KN cake press.
Specific example 6
One embodiment of the present invention provides a titanium element additive comprising: titanium powder and a fluxing agent.
Wherein the fluxing agent comprises fluoride salt powder, potassium chloride and sodium sulfate;
the mass percent of the titanium powder is 70, and the mass percent of the fluxing agent is 30.
Further, the fluorine salt powder includes: fluoride salt slag powder and aluminum fluoride generated in the process of preparing aluminum-titanium-boron by a fluoride salt method.
Wherein the fluoride slag powder comprises potassium tetrafluoroaluminate and potassium hexafluoroaluminate.
Wherein, the mass percent of the fluorine salt slag powder relative to the total mass of the fluxing agent is 50, the mass percent of the aluminum fluoride relative to the total mass of the fluxing agent is 25, the mass percent of the potassium chloride relative to the total mass of the fluxing agent is 15, and the mass percent of the sodium sulfate relative to the total mass of the fluxing agent is 10.
As shown in fig. 9, the preparation method of the titanium element additive includes:
step 902: crushing solid fluoride salt slag generated in the aluminum-titanium-boron production into fluoride salt blocks with the particle size of 20mm by using a jaw crusher, and putting the fluoride salt blocks into a ball mill to grind into 150-mesh fluoride salt slag powder;
step 904: obtaining a fluxing agent raw material according to the raw material component proportion, and putting the fluxing agent raw material into a drying stirrer, wherein the drying temperature is 110 ℃, and the stirring time is 2 hours, so as to prepare the fluxing agent;
step 908: fully mixing the fluxing agent and the titanium powder mixer to obtain a mixed raw material;
step 910: the mixed raw materials are pressed into a cake-shaped titanium element additive with the weight of 0.5kg by a 4000KN cake press.
Test example
Selecting the titanium element additive prepared in the specific embodiments 1 to 6, adding 0.5kg of the titanium element additive into the aluminum liquid at 750 ℃, sampling and analyzing the titanium content after 15min, measuring and calculating the actual yield of the titanium in the aluminum liquid, and the specific measurement results are shown in table 1.
Table 1 test example measurement results:
| sample source | Actual yield of titanium (%) |
| Detailed description of the preferred embodiment 1 | 92.03 |
| Specific example 2 | 92.02 |
| Specific example 3 | 92.05 |
| Specific example 4 | 91.99 |
| Specific example 5 | 92.04 |
| Specific example 6 | 92.00 |
As can be seen from the table above, the titanium element additive provided by the invention can obviously improve the actual yield of titanium in the aluminum liquid.
In the present invention, the terms "mounting," "connecting," "fixing," and the like are used in a broad sense, for example, "connecting" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The titanium element additive is characterized in that the raw material components of the titanium element additive comprise:
titanium powder;
fluxing agent;
wherein the fluxing agent comprises fluoride salt powder, potassium chloride and sodium sulfate;
the mass percentage of the titanium powder is 30-70.
2. The elemental titanium additive of claim 1 wherein the fluoride salt powder comprises:
fluoride salt slag powder generated in the process of preparing aluminum titanium boron by a fluoride salt method;
aluminum fluoride.
3. The elemental titanium additive of claim 2, further comprising:
the fluoride slag powder comprises potassium tetrafluoroaluminate and potassium hexafluoroaluminate.
4. The elemental titanium additive according to claim 2 or 3,
the mass percentage of the fluorine salt slag powder relative to the total mass of the fluxing agent is 40-60.
5. The elemental titanium additive according to claim 2 or 3,
the aluminum fluoride is 10 to 30 mass% with respect to the total mass of the flux.
6. The elemental titanium additive according to any one of claims 1 to 3,
the mass percentage of the potassium chloride relative to the total mass of the fluxing agent is 10 to 30.
7. The elemental titanium additive according to any one of claims 1 to 3,
the mass percentage of the sodium sulfate relative to the total mass of the flux is 5 to 15.
8. A method for preparing a titanium element additive is characterized by comprising the following steps:
obtaining titanium powder and a fluxing agent according to the raw material component proportion of the titanium element additive in any one of claims 1 to 7;
mixing the titanium powder and the fluxing agent to obtain a mixed raw material;
and pressing the mixed raw materials to obtain the titanium element additive.
9. The method for preparing titanium element additive according to claim 8, further comprising, before the step of obtaining titanium powder and flux according to the raw material composition ratio of titanium element additive as defined in any one of claims 1 to 7:
obtaining fluoride salt slag generated in the process of preparing aluminum-titanium-boron by a fluoride salt method;
crushing the fluoride salt slag to obtain fluoride salt blocks;
grinding the fluoride salt blocks to obtain fluoride salt slag powder;
wherein the grain diameter of the villiaumite slag powder is 100 meshes to 150 meshes.
10. The method for preparing the titanium element additive according to claim 8, wherein the step of mixing the titanium powder and the flux to obtain a mixed raw material specifically comprises:
stirring the fluxing agent at the temperature of 100-200 ℃ to obtain the fluxing agent with the water content of less than 0.5%;
mixing the fluxing agent with the water content of less than 0.5% with the titanium powder to obtain a mixed raw material;
wherein the stirring time is 1-3 h.
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