CN108504884A - A kind of environment-friendly type refining agent, preparation method and refinery practice - Google Patents
A kind of environment-friendly type refining agent, preparation method and refinery practice Download PDFInfo
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- CN108504884A CN108504884A CN201810332624.1A CN201810332624A CN108504884A CN 108504884 A CN108504884 A CN 108504884A CN 201810332624 A CN201810332624 A CN 201810332624A CN 108504884 A CN108504884 A CN 108504884A
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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
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The present invention relates to aluminium and its alloy purification refining treatment technical field, more particularly to a kind of environment-friendly type refining agent, preparation method and refinery practice, it is intended to clean to the molten aluminum during alloy refining, to improve product quality, while avoid atmosphere pollution.Wherein, environment-friendly type refining agent includes following parts by weight of component：30 40 parts of potassium chloride；15 30 parts of sodium chloride；10 20 parts of sodium terachloroaluminate；8 20 parts of sodium sulphate；15 30 parts of chlorine sodium metasilicate；13 parts of catalyst.The present invention can promote the decomposition of sodium terachloroaluminate in refining agent by adding accelerating agent, accelerating agent in refining agent, simultaneously, reduce the interfacial tension between refining agent and oxide inclusion, so that oxide inclusion is smoothly swum on liquid level, and then be removed, to improve product quality.
Description
Technical field
The present invention relates to aluminium and its alloy purification refining treatment technical field, more particularly to a kind of environment-friendly type refining agent, system
Preparation Method and refinery practice.
Background technology
In order to realize that making full use of for bauxite resource, existing withdrawal aluminium waste product are simultaneously reprocessed, repeat to recycle to realize
Aluminium material manufacturing technique.But the aluminium waste of recycling is usually mixed with alkali metal impurities such as higher sodium, calcium and lithium, nonmetallic miscellaneous
Matter, organic material and steam.The casting and subsequent processing meeting of these alkali metal, nonmetallic slag inclusion and steam to aluminium and its alloy
It causes to seriously affect, it is impaired to eventually lead to the quality of ingot aluminum produced.So before aluminium waste cast, it is necessary to use refining agent
Purefying processing is carried out to the aluminum water of fusing, it is therefore an objective to remove gas (being mostly hydrogen) in alkali metal, aluminum water and other are miscellaneous
Object.
The Chinese invention patent that publication No. is CN105002387A discloses the refining agent of a kind of aluminium and aluminium alloy and makes
Refining agent, and profit are added thereto after by aluminium alloy smelting in melt with the aluminium alloy smelting refinery practice of the refining agent
It is refined with nitrogen gas stirring, and after appropriate raising temperature, is continuing with electromagnetic agitation refining.
But the technical solution of above-mentioned disclosure, in implementation process, the impurity-eliminating effect of refining agent is not especially desirable, is removed
Miscellaneous less efficient, time-consuming longer, removal of impurities is not thorough, and the quality of finished product aluminium ingot is caused to be affected, and is contained in the refining agent
Fluorine element pollutes air in refining process, endangers staff's health.
Invention content
The first object of the present invention is to provide a kind of environment-friendly type refining agent, it is intended to the molten aluminum during alloy refining
It cleans, to improve product quality, while avoiding atmosphere pollution.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of environment-friendly type refining agent, including following parts by weight of component：
Further, the catalyst is one kind in potassium alginate, sodium alginate and calcium alginate.
The second object of the present invention is to provide a kind of preparation method of environment-friendly type refining agent, include the following steps：
S1：Pretreatment after mixing potassium chloride, chlorine sodium metasilicate, sodium chloride, sodium terachloroaluminate, sodium sulphate, is stirred and is added
Heat；
S2：Microwave treatment is carried out to catalyst；
S3：After the mixture obtained in S1 and the material obtained in S2 are sufficiently mixed, sintering；
S4：The mixture obtained in S3 is crushed, is granulated, environment-friendly type refining agent is obtained.
Further, heating temperature is 250-280 DEG C in S1.
Further, the temperature of microwave treatment is 150-190 DEG C in S2.
Further, sintering temperature is 300-310 DEG C in S3.
The third object of the present invention is to provide a kind of refinery practice using environment-friendly type refining agent refined aluminum material, including with
Lower step：
Sa：Aluminium material is put into and heats melting in refining furnace, molten aluminum is made, and controls temperature stabilization；
Sb：Environment-friendly type refining agent comprising catalyst is sprayed into molten aluminum, first time refining is carried out；
Sc：After refining for the first time, operation of skimming for the first time is carried out；
Sd：Control refining furnace inner gas pressure, and molten aluminum in stove is sufficiently stirred；
Se：Molten aluminum is stood, operation of being skimmed for the second time later；
Sf：The step of repeating Sb-Se completes refinery process.
Further, increase Se ' between Se and Sf：Molten aluminum ingredient in refining furnace is detected, and is added as needed
Add adjustment material.
Further, temperature is controlled at 710-730 DEG C in Sa.
Further, furnace inner gas pressure control is refined in Sd in 0.2-0.3Mpa.
Sodium chloride, potassium chloride and sodium terachloroaluminate etc. in the present invention, chemically react with the aluminium in molten aluminum, generate chlorination
Aluminium aluminium chloride and is not dissolved in molten aluminum in the system, is removed in molten aluminum from that can be acted on by flotation when being escaped in molten aluminum
Partial oxidation field trash.Meanwhile potassium alginate, sodium alginate and calcium alginate etc. being added to as catalyst in the present invention
In refining agent, potassium alginate, sodium alginate and calcium alginate etc. can promote sodium terachloroaluminate to be decomposed into aluminium chloride etc., be in gaseous state
Aluminium chloride effusion when take part sundries out of, to improve refining efficiency.
On the other hand, oxide inclusion can not be wetted by aluminum in molten aluminum, and the interfacial tension between the two is larger.
And potassium alginate, sodium alginate and calcium alginate etc. can increase between refining agent and molten aluminum and molten aluminum and oxide inclusion it
Between interfacial tension, reduce the interfacial tension between refining agent and oxide inclusion, keep oxide inclusion wetted, in
Gaseous aluminium chloride is easier to be carried over from molten aluminum in effusion, and then improves impurity-eliminating effect.Meanwhile alginate can increase
The adhesion property of big refining agent makes field trash be easier to be refined agent absorption, to achieve the purpose that removal of impurities.
The present invention is when preparing the environment-friendly type refining agent containing catalyst, to catalyst potassium alginate, sodium alginate and sea
Calcium alginate etc. carries out microwave treatment.Microwave treatment can increase potassium alginate, sodium alginate and calcium alginate in a short time
Specific surface area improves the ability of the absorption sundries of above-mentioned catalyst, improves potassium alginate, sodium alginate and calcium alginate and promote four
The ability that Sodium Tetrachloroaluminate decomposes shortens refining time.Due to being free of fluorine element in the refining agent of the application, it is refining
Atmosphere pollution will not be caused in the process, will not influence the health of staff.
For the present invention during to aluminum anodizing, control refining furnace inner gas pressure is in 0.2-0.3Mpa, by reducing stove
The method of internal pressure reduces resistance when gas effusion in molten aluminum, to which oxide inclusion is more easy to swim in liquid level, so as to logical
Operation of skimming is crossed to be removed.
In conclusion the invention has the advantages that：
1. being added in refining agent by regarding potassium alginate, sodium alginate and calcium alginate as catalyst, above-mentioned catalysis
Agent can promote sodium terachloroaluminate to decompose and react with molten aluminum to generate aluminium chloride, and part is taken out of in effusion in gaseous aluminium chloride
Sundries, to improve refining efficiency；
2. being increased between refining agent and molten aluminum using potassium alginate, sodium alginate and calcium alginate and molten aluminum being pressed from both sides with oxidation
Interfacial tension between sundries reduces the interfacial tension between refining agent and oxide inclusion, keeps oxide inclusion wetted, from
And in gaseous aluminium chloride from molten aluminum effusion when be easier to be carried over, and then improve impurity-eliminating effect；
3. control refining furnace inner gas pressure, in 0.2-0.3Mpa, the method by reducing stove internal pressure reduces gas in molten aluminum
Resistance when body escapes, to which oxide inclusion is more easy to swim in liquid level；
4. atmosphere pollution therefore will not be caused in refining process without fluorine element in refining agent component, it will not shadow
Ring the health of staff.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with specific embodiment.Obviously, described
Embodiment be only the present invention a part of the embodiment, instead of all the embodiments.Based on the embodiment of the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained without creative efforts, belongs to guarantor of the present invention
The range of shield.
The present invention discloses a kind of environment-friendly type refining agent, preparation method and refinery practice, specific implementation mode are as follows.
Embodiment 1
One, each component content of the environment-friendly type refining agent is as follows：
Catalyst is potassium alginate in the present embodiment.
Two, the preparation method of the environment-friendly type refining agent is：
S1：Pretreatment, the potassium chloride of above-mentioned content component, chlorine sodium metasilicate, sodium chloride, sodium terachloroaluminate, sodium sulphate are mixed
After conjunction, it is stirred and heated to 250 DEG C；
S2：Microwave treatment is carried out to catalyst, and the temperature of microwave treatment is controlled at 170 DEG C；
S3：After the mixture obtained in S1 and the material obtained in S2 are thoroughly mixed, it is put into sintering furnace, 300-
305 DEG C of sintering；
S4：The mixture obtained in S3 is crushed using pulverizer, and is granulated using comminutor, environment-friendly type refining is obtained
Agent.
Three, the refinery practice using the environment-friendly type refining agent refined aluminum material is as follows：
Sa：ADC10 aluminium alloys are put into and heat melting in refining furnace, molten aluminum are made, and control temperature at 710-720 DEG C.
Sb：Environment-friendly type refining agent comprising catalyst is sprayed into using powder blower in molten aluminum, first time refining, control are carried out
The weight of aluminium material used catalyst per ton is 2.5kg；Ensure to dust nozzle in course of injection apart from refining furnace bottom 10cm, and controls
Discharge tube does Z-shaped with the speed of 0.2-0.3m/s in refining furnace and at the uniform velocity moves, and covers entire refining furnace.
Sc：After refining for the first time, molten aluminum stands 5min, so as to slag emersion liquid level, carries out operation of skimming for the first time；It skims
When by slag bucket and be emitted into refining stove gate, slag rake is provoked to 2m height with fork truck, is steadily entered in refining furnace, from molten bath
Innermost end is taken off outward, and slag is taken off to table, is then all grilled into slag in slag bucket.
Sd：Control refining furnace inner gas pressure in 0.2-0.3Mpa, and using the discharge tube of powder blower in stove with 0.2-
The speed of 0.3m/s is done Z-shaped in refining furnace and is at the uniform velocity moved, and covers entire refining furnace, to be sufficiently stirred to molten aluminum in stove.
Se：Molten aluminum stands 5min, operation of being skimmed for the second time later.
Se’：Molten aluminum ingredient in refining furnace is detected, and is added as needed on adjustment material.
Sf：The step of repeating Sb-Se completes refinery process.
Embodiment 2
One, each component content of the environment-friendly type refining agent is as follows：
Catalyst is potassium alginate in the present embodiment.
Two, the preparation method of the environment-friendly type refining agent is：
S1：Pretreatment, the potassium chloride of above-mentioned content component, chlorine sodium metasilicate, sodium chloride, sodium terachloroaluminate, sodium sulphate are mixed
After conjunction, it is stirred and heated to 260 DEG C；
S2：Microwave treatment is carried out to catalyst, and the temperature of microwave treatment is controlled at 150 DEG C；
S3：After the mixture obtained in S1 and the material obtained in S2 are thoroughly mixed, it is put into sintering furnace, 305-
310 DEG C of sintering；
S4：The mixture obtained in S3 is crushed using pulverizer, and is granulated using comminutor, environment-friendly type refining is obtained
Agent.
Three, the refinery practice using the environment-friendly type refining agent refined aluminum material is as follows：
Sa：ADC10 aluminium alloys are put into and heat melting in refining furnace, molten aluminum are made, and control temperature at 720-730 DEG C.
Sb：Environment-friendly type refining agent comprising catalyst is sprayed into using powder blower in molten aluminum, first time refining, control are carried out
The weight of aluminium material used catalyst per ton is 2.5kg；Ensure to dust nozzle in course of injection apart from refining furnace bottom 10cm, and controls
Discharge tube does chuan-shaped with the speed of 0.2-0.3m/s in refining furnace and at the uniform velocity moves, and covers entire refining furnace.
Sc：After refining for the first time, molten aluminum stands 5min, so as to slag emersion liquid level, carries out operation of skimming for the first time；It skims
When by slag bucket and be emitted into refining stove gate, slag rake is provoked to 2m height with fork truck, is steadily entered in refining furnace, from molten bath
Innermost end is taken off outward, and slag is taken off to table, is then all grilled into slag in slag bucket.
Sd：Control refining furnace inner gas pressure in 0.2-0.3Mpa, and using the discharge tube of powder blower in stove with 0.2-
The speed of 0.3m/s is done chuan-shaped in refining furnace and is at the uniform velocity moved, and covers entire refining furnace, to be sufficiently stirred to molten aluminum in stove.
Se：Molten aluminum stands 5min, operation of being skimmed for the second time later.
Se’：Molten aluminum ingredient in refining furnace is detected, and is added as needed on adjustment material.
Sf：The step of repeating Sb-Se completes refinery process.
Embodiment 3
One, each component content of the environment-friendly type refining agent is as follows：
Catalyst is sodium alginate in the present embodiment.
Two, the preparation method of the environment-friendly type refining agent is：
S1：Pretreatment, the potassium chloride of above-mentioned content component, chlorine sodium metasilicate, sodium chloride, sodium terachloroaluminate, sodium sulphate are mixed
After conjunction, it is stirred and heated to 270 DEG C；
S2：Microwave treatment is carried out to catalyst, and the temperature of microwave treatment is controlled at 180 DEG C；
S3：After the mixture obtained in S1 and the material obtained in S2 are thoroughly mixed, it is put into sintering furnace, 300-
310 DEG C of sintering；
S4：The mixture obtained in S3 is crushed using pulverizer, and is granulated using comminutor, environment-friendly type refining is obtained
Agent.
Three, the refinery practice using the environment-friendly type refining agent refined aluminum material is as follows：
Sa：ADC10 aluminium alloys are put into and heat melting in refining furnace, molten aluminum are made, and control temperature at 710-730 DEG C.
Sb：Environment-friendly type refining agent comprising catalyst is sprayed into using powder blower in molten aluminum, first time refining, control are carried out
The weight of aluminium material used catalyst per ton is 2.5kg；Ensure to dust nozzle in course of injection apart from refining furnace bottom 10cm, and controls
Discharge tube does chuan-shaped with the speed of 0.2-0.3m/s in refining furnace and at the uniform velocity moves, and covers entire refining furnace.
Sc：After refining for the first time, molten aluminum stands 5min, so as to slag emersion liquid level, carries out operation of skimming for the first time；It skims
When by slag bucket and be emitted into refining stove gate, slag rake is provoked to 2m height with fork truck, is steadily entered in refining furnace, from molten bath
Innermost end is taken off outward, and slag is taken off to table, is then all grilled into slag in slag bucket.
Sd：Control refining furnace inner gas pressure in 0.2-0.3Mpa, and using the discharge tube of powder blower in stove with 0.2-
The speed of 0.3m/s is done chuan-shaped in refining furnace and is at the uniform velocity moved, and covers entire refining furnace, to be sufficiently stirred to molten aluminum in stove.
Se：Molten aluminum stands 5min, operation of being skimmed for the second time later.
Se’：Molten aluminum ingredient in refining furnace is detected, and is added as needed on adjustment material.
Sf：The step of repeating Sb-Se completes refinery process.
Embodiment 4
One, each component content of the environment-friendly type refining agent is as follows：
Used catalyst is sodium alginate in the present embodiment.
Two, the preparation method of the environment-friendly type refining agent is：
S1：Pretreatment, the potassium chloride of above-mentioned content component, chlorine sodium metasilicate, sodium chloride, sodium terachloroaluminate, sodium sulphate are mixed
After conjunction, it is stirred and heated to 280 DEG C；
S2：Microwave treatment is carried out to catalyst, and the temperature of microwave treatment is controlled at 180 DEG C；
S3：After the mixture obtained in S1 and the material obtained in S2 are thoroughly mixed, it is put into sintering furnace, 300-
310 DEG C of sintering；
S4：The mixture obtained in S3 is crushed using pulverizer, and is granulated using comminutor, environment-friendly type refining is obtained
Agent.Three, the refinery practice using the environment-friendly type refining agent refined aluminum material is as follows：
Sa：ADC12 aluminium alloys are put into and heat melting in refining furnace, molten aluminum are made, and control temperature at 710-730 DEG C.
Sb：Environment-friendly type refining agent comprising catalyst is sprayed into using powder blower in molten aluminum, first time refining, control are carried out
The weight of aluminium material used catalyst per ton is 3.0kg；Ensure to dust nozzle in course of injection apart from refining furnace bottom 10cm, and controls
Discharge tube does chuan-shaped with the speed of 0.2-0.3m/s in refining furnace and at the uniform velocity moves, and covers entire refining furnace.
Sc：After refining for the first time, molten aluminum stands 5min, so as to slag emersion liquid level, carries out operation of skimming for the first time；It skims
When by slag bucket and be emitted into refining stove gate, slag rake is provoked to 2m height with fork truck, is steadily entered in refining furnace, from molten bath
Innermost end is taken off outward, and slag is taken off to table, is then all grilled into slag in slag bucket.
Sd：Control refining furnace inner gas pressure in 0.2-0.3Mpa, and using the discharge tube of powder blower in stove with 0.2-
The speed of 0.3m/s is done chuan-shaped in refining furnace and is at the uniform velocity moved, and covers entire refining furnace, to be sufficiently stirred to molten aluminum in stove.
Se：Molten aluminum stands 5min, operation of being skimmed for the second time later.
Se’：Molten aluminum ingredient in refining furnace is detected, and is added as needed on adjustment material.
Sf：The step of repeating Sb-Se completes refinery process.
Embodiment 5
One, each component content of the environment-friendly type refining agent is as follows：
Used catalyst is calcium alginate in the present embodiment.
Two, the preparation method of the environment-friendly type refining agent is：
S1：Pretreatment, the potassium chloride of above-mentioned content component, chlorine sodium metasilicate, sodium chloride, sodium terachloroaluminate, sodium sulphate are mixed
After conjunction, it is stirred and heated to 280 DEG C；
S2：Microwave treatment is carried out to catalyst, and the temperature of microwave treatment is controlled at 180 DEG C；
S3：After the mixture obtained in S1 and the material obtained in S2 are thoroughly mixed, it is put into sintering furnace, 300-
310 DEG C of sintering；
S4：The mixture obtained in S3 is crushed using pulverizer, and is granulated using comminutor, environment-friendly type refining is obtained
Agent.
Three, the refinery practice using the environment-friendly type refining agent refined aluminum material is as follows：
Sa：ADC12 aluminium alloys are put into and heat melting in refining furnace, molten aluminum are made, and control temperature at 710-730 DEG C.
Sb：Environment-friendly type refining agent comprising catalyst is sprayed into using powder blower in molten aluminum, first time refining, control are carried out
The weight of aluminium material used catalyst per ton is 3.0kg；Ensure to dust nozzle in course of injection apart from refining furnace bottom 10cm, and controls
Discharge tube does chuan-shaped with the speed of 0.2-0.3m/s in refining furnace and at the uniform velocity moves, and covers entire refining furnace.
Sc：After refining for the first time, molten aluminum stands 5min, so as to slag emersion liquid level, carries out operation of skimming for the first time；It skims
When by slag bucket and be emitted into refining stove gate, slag rake is provoked to 2m height with fork truck, is steadily entered in refining furnace, from molten bath
Innermost end is taken off outward, and slag is taken off to table, is then all grilled into slag in slag bucket.
Sd：Control refining furnace inner gas pressure in 0.2-0.3Mpa, and using the discharge tube of powder blower in stove with 0.2-
The speed of 0.3m/s is done chuan-shaped in refining furnace and is at the uniform velocity moved, and covers entire refining furnace, to be sufficiently stirred to molten aluminum in stove.
Se：Molten aluminum stands 5min, operation of being skimmed for the second time later.
Se’：Molten aluminum ingredient in refining furnace is detected, and is added as needed on adjustment material.
Sf：The step of repeating Sb-Se completes refinery process.
Embodiment 6
One, each component content of the environment-friendly type refining agent is as follows：
Used catalyst is calcium alginate in the present embodiment.
Two, the preparation method of the environment-friendly type refining agent is：
S1：Pretreatment, the potassium chloride of above-mentioned content component, chlorine sodium metasilicate, sodium chloride, sodium terachloroaluminate, sodium sulphate are mixed
After conjunction, it is stirred and heated to 280 DEG C；
S2：Microwave treatment is carried out to catalyst, and the temperature of microwave treatment is controlled at 190 DEG C；
S3：After the mixture obtained in S1 and the material obtained in S2 are thoroughly mixed, it is put into sintering furnace, 300-
310 DEG C of sintering；
S4：The mixture obtained in S3 is crushed using pulverizer, and is granulated using comminutor, environment-friendly type refining is obtained
Agent.
Three, the refinery practice using the environment-friendly type refining agent refined aluminum material is as follows：
Sa：ADC12 aluminium alloys are put into and heat melting in refining furnace, molten aluminum are made, and control temperature at 710-730 DEG C.
Sb：Environment-friendly type refining agent comprising catalyst is sprayed into using powder blower in molten aluminum, first time refining, control are carried out
The weight of aluminium material used catalyst per ton is 3.0kg；Ensure to dust nozzle in course of injection apart from refining furnace bottom 10cm, and controls
Discharge tube does chuan-shaped with the speed of 0.2-0.3m/s in refining furnace and at the uniform velocity moves, and covers entire refining furnace.
Sc：After refining for the first time, molten aluminum stands 5min, so as to slag emersion liquid level, carries out operation of skimming for the first time；It skims
When by slag bucket and be emitted into refining stove gate, slag rake is provoked to 2m height with fork truck, is steadily entered in refining furnace, from molten bath
Innermost end is taken off outward, and slag is taken off to table, is then all grilled into slag in slag bucket.
Sd：Control refining furnace inner gas pressure in 0.2-0.3Mpa, and using the discharge tube of powder blower in stove with 0.2-
The speed of 0.3m/s is done chuan-shaped in refining furnace and is at the uniform velocity moved, and covers entire refining furnace, to be sufficiently stirred to molten aluminum in stove.
Se：Molten aluminum stands 5min, operation of being skimmed for the second time later.
Se’：Molten aluminum ingredient in refining furnace is detected, and is added as needed on adjustment material.
Sf：The step of repeating Sb-Se completes refinery process.
The forward and backward ingredient therein of each embodiment aluminum anodizing is detected, specific detection method reference《Non-ferric is cast to close
Gold》(yellow extensive member writes, China Machine Press, 1999), aluminium alloy content standard is with reference to GB/T 3190-1996.
It is " preceding " to indicate that " rear " expression is using after refining agent refining treatment using before refining agent refining treatment in upper table.
As can be seen from the above table, the molten aluminum in each embodiment, before carrying out refinery process, the content of wherein calcium and sodium is equal
It is apparently higher than required value, even up to twice of required value.In embodiment 1, the content of sodium is 0.0021% before refining, and
Technology requires the content of sodium that must not be higher than 0.001%.But the environment-friendly type refining agent in using the application and refinery practice pair
After molten aluminum in embodiment 1 is refined, the content of wherein sodium is reduced to 0.0007%, and reduced rate reaches 66.67%；Meanwhile
The content of calcium also reduces 50%, and sundries content meets technology requirement.
On the other hand, for iron, copper and magnesium, one of the component as aluminium alloy, content does not have apparent drop
It is low, to cause end product quality impaired because of the refining of environment-friendly type refining agent.
Claims (10)
1. a kind of environment-friendly type refining agent, it is characterised in that：Including following parts by weight of component：
2. a kind of environment-friendly type refining agent according to claim 1, it is characterised in that：The catalyst is potassium alginate, sea
One kind in mosanom and calcium alginate.
3. a kind of preparation method of environment-friendly type refining agent, it is characterised in that：Include the following steps：
S1：Pretreatment is stirred and is heated after mixing potassium chloride, chlorine sodium metasilicate, sodium chloride, sodium terachloroaluminate, sodium sulphate；
S2：Microwave treatment is carried out to catalyst；
S3：After the mixture obtained in S1 and the material obtained in S2 are sufficiently mixed, sintering；
S4：The mixture obtained in S3 is crushed, is granulated, environment-friendly type refining agent is obtained.
4. a kind of preparation method of environment-friendly type refining agent according to claim 3, it is characterised in that：Heating temperature is in S1
250-280℃。
5. a kind of preparation method of environment-friendly type refining agent according to claim 3, it is characterised in that：Microwave treatment in S2
Temperature is 150-190 DEG C.
6. a kind of preparation method of environment-friendly type refining agent according to claim 3, it is characterised in that：Sintering temperature is in S3
300-310℃。
7. a kind of refinery practice using environment-friendly type refining agent refined aluminum material, it is characterised in that：Include the following steps：
Sa：Aluminium material is put into and heats melting in refining furnace, molten aluminum is made, and controls temperature stabilization；
Sb：Environment-friendly type refining agent comprising catalyst is sprayed into molten aluminum, first time refining is carried out；
Sc：After refining for the first time, operation of skimming for the first time is carried out；
Sd：Control refining furnace inner gas pressure, and molten aluminum in stove is sufficiently stirred；
Se：Molten aluminum is stood, operation of being skimmed for the second time later；
Sf：The step of repeating Sb-Se completes refinery process.
8. a kind of refinery practice using environment-friendly type refining agent refined aluminum material according to claim 7, it is characterised in that：
Increase Se ' between Se and Sf：Molten aluminum ingredient in refining furnace is detected, and is added as needed on adjustment material.
9. a kind of refinery practice using environment-friendly type refining agent refined aluminum material according to claim 7, it is characterised in that：Sa
Middle temperature control is at 710-730 DEG C.
10. a kind of refinery practice using environment-friendly type refining agent refined aluminum material according to claim 7, it is characterised in that：
Furnace inner gas pressure control is refined in Sd in 0.2-0.3Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810332624.1A CN108504884A (en) | 2018-04-13 | 2018-04-13 | A kind of environment-friendly type refining agent, preparation method and refinery practice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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