CN107354583A - The high-valued comprehensive utilization process of dead catalyst slag - Google Patents
The high-valued comprehensive utilization process of dead catalyst slag Download PDFInfo
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- CN107354583A CN107354583A CN201710556575.5A CN201710556575A CN107354583A CN 107354583 A CN107354583 A CN 107354583A CN 201710556575 A CN201710556575 A CN 201710556575A CN 107354583 A CN107354583 A CN 107354583A
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4209—Inorganic fibres
- D04H1/4218—Glass fibres
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B1/00—Preparing the batches
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/04—Manufacture of glass fibres or filaments by using centrifugal force, e.g. spinning through radial orifices; Construction of the spinner cups therefor
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/002—Use of waste materials, e.g. slags
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B23/00—Obtaining nickel or cobalt
- C22B23/02—Obtaining nickel or cobalt by dry processes
- C22B23/026—Obtaining nickel or cobalt by dry processes from spent catalysts
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
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Abstract
The present invention discloses a kind of high-valued comprehensive utilization process of dead catalyst slag, it stirs and evenly mixs dead catalyst slag and adhesive to obtain mixed material in mixer, mixed material granulating and forming in ball press, spherical material and the agent of metal supplementary set, cosolvent are placed in electric arc furnaces fully reaction to being completely melt, electric arc furnaces molten bath includes the liquid of cobalt nickel and contains AL2O3、SiO2Slag liquid formed layering, the liquid alloy of the nickel containing cobalt is located at lower floor, slag liquid is on upper strata, aluminium alloy is flowed out to obtain cobalt-nickel alloy from the discharging opening of electric arc furnaces, and slag liquid is discharged from the slag notch of electric arc furnaces, obtains the slag liquid that temperature is not less than 1300 DEG C, slag liquid acts on forming filamentary fibers by tumbling machine high speed centrifugation power, filamentary fibers collect to obtain blanket semi-finished product by condensers negative pressure, blanket semi-finished product drying, acupuncture, cutting, packaging, obtain finished product.Present invention process flow is short, and organic efficiency is high, no waste residue, waste water output, is adapted to industrialization large-scale production.
Description
Technical field
The invention belongs to spent catalyst recovery technical field, more particularly, to a kind of high-valued synthesis of dead catalyst slag
Utilize technique.
Background technology
During the industry productions such as petrochemical industry, chemical industry, catalyst is usually used to accelerate reaction process, increasing over time
Add catalyst to ultimately result in catalyst failure because the reasons such as carbon distribution, poisoning gradually lose activity in use, turn into useless
Catalyst.The dead catalyst Main Ingredients and Appearance of these inactivations is AL2O3、SiO2, Mo, W, V, Ni, Co etc..It is valuable in dead catalyst
Metal has very high recovery value, after recovery of the enterprise to valuable metal Mo, W, V, forms largely with AL2O3、SiO2For
Alloy Ni, Co dead catalyst slag of carrier, dead catalyst slag material composition are：AL2O3 40~55%, SiO2 35~45%, Ni 5
~10%, Co 3~8%.At present, above-mentioned dangerous dead catalyst slag can only do waste material stacking, landfill disposal, not only exist illegal
Behavior, and environment is caused seriously to pollute.
The content of the invention
To solve the above problems, it is an object of the invention to provide a kind of high-valued comprehensive utilization process of dead catalyst slag, its
Dangerous waste gurry is successfully become two kinds of alloy products and industrial heat preservation cotton, realize change and give up to protect, not only technique is simple, flow
Short and secondary resource resource recovery is high.
For achieving the above object, the present invention adopts the following technical scheme that：
A kind of high-valued comprehensive utilization process of dead catalyst slag, it comprises the following steps：
Step 1, by dead catalyst slag and adhesive it is 1 in mass ratio:0.1~0.2 ratio stirs and evenly mixs in mixer
To mixed material；
Step 2, by the mixed material that step 1 obtains by belt conveyor be sent into ball press in granulating and forming, it is small to obtain granularity
In 5cm spherical material；
Step 3, by spherical material and the agent of metal supplementary set, cosolvent according to mass ratio 1：0.05~0.1：0.15~0.2 is placed in electricity
React 60~120min in arc stove at 1200~1600 DEG C, fully reaction is to being completely melt；Due to density in electric arc furnaces molten bath
The liquid of difference nickel containing cobalt is with containing AL2O3、SiO2Slag liquid formed layering, the liquid alloy of the nickel containing cobalt is located at lower floor, containing AL2O3、
SiO2Slag liquid flow out to obtain cobalt-nickel alloy from the discharging opening of electric arc furnaces in upper strata, aluminium alloy；Small external crucible is provided with electric arc furnaces
For slagging tap, small external crucible is provided with electrode assembly, containing AL2O3、SiO2Slag liquid flowed out out of electric arc furnaces molten bath after fall into it is small before
Bed, electrode assembly, which is in, contains AL2O3、SiO2Slag liquid in；Small external crucible slag notch bottom is provided with the internal taper with cavity and led
Flow cartridge, guide shell is corresponding with the position of wire swaying roller on tumbling machine and guide shell bottom away from wire swaying roller distance is 1.2~1.5 meters,
Slag liquid liquid level in small external crucible is 40~50cm, containing AL2O3、SiO2Slag liquid through slag notch, guide shell discharge, obtain temperature
Degree contains AL not less than 1300 DEG C2O3、SiO2Slag liquid；
Slag liquid of the temperature that step 4, step 3 obtain not less than 1300 DEG C flows to tumbling machine at a high speed on the wire swaying roller of rotation, through height
Fast centrifugal action forms filamentary fibers, and the rotating speed of centrifugal drying silk is 1300~1500r/min；Filamentary fibers by tumbling machine with
The air-introduced machine of condensers junction installation is blowed to condensers negative pressure via 750~900mm of diameter delivery conduit to be collected to obtain
Blanket semi-finished product；
The blanket semi-finished product that step 5, step 4 obtain, which enter, dries drying in Drying unit, drying temperature is 800~1200 DEG C；
Blanket product after drying forms needle punched blanket by needing machine acupuncture, the blanket product after drying is had toughness；
The needle punched blanket that step 6, step 5 obtain is cut via filling machine, packaging unit packaging, obtains finished product.
Further, in above-mentioned step 1, adhesive is one or both of waterglass, spent pulping liquor.
Further, in above-mentioned step 3, the agent of metal supplementary set is one kind in iron family element, preferably iron powder.
Further, in above-mentioned step 3, cosolvent is any one in calcium oxide, magnesia, fluorite, aluminum oxide
Or two or more mixtures.
Further, in above-mentioned step 3, guide shell material is tungsten material.
The high-valued comprehensive utilization process of above-mentioned dead catalyst, the fibre diameter of its obtained glass heat-insulating cotton is 18~50
μm, adaptive temperature is -44 DEG C~100 DEG C, and density is 24~28kg/ m3, thermal conductivity factor≤0.034, burning grade is fire retardant
Level, thermal resistance value >=2.5.
The high-valued comprehensive utilization process of above-mentioned dead catalyst, its cobalt-nickel alloy rate of recovery are more than 99.95%, and slag liquid is whole
Industrial glass heat-preservation cotton is made.
The above-mentioned high-valued comprehensive utilization process of dead catalyst slag, material composition is by weight percentage in its dead catalyst slag
For：AL2O3 57~70%, SiO2 12~25%, Ni5~10%, Co3~8%.
Due to using technical scheme as described above, the present invention has following superiority：
The high-valued comprehensive utilization process of dead catalyst slag, its technological process is short, and production cost is low, simple to operate, organic efficiency
Height, no waste residue, waste water output, to more environment-friendly, meet environmental requirement, the two of dead catalyst metal in the dreg cobalt nickel can be realized
Secondary recovery, and industrial heat preservation material can be made in dreg liquid and realize economic value, it is adapted to industrialization large-scale production.
Embodiment
Technical scheme is described in further detail with reference to embodiment.
The high-valued comprehensive utilization process of dead catalyst slag of the present invention, it includes step in detail below：
Step 1, by dead catalyst slag and adhesive it is 1 in mass ratio:0.1~0.2 ratio stirs and evenly mixs in mixer
To mixed material；
Step 2, by the mixed material that step 1 obtains by belt conveyor be sent into ball press in granulating and forming, it is small to obtain granularity
In 5cm spherical material；Spherical material can improve the gas permeability of the bed of material in electric arc furnaces molten bath and improve furnace charge smelting performance；
Step 3, by spherical material and the agent of metal supplementary set, cosolvent according to mass ratio 1：0.05~0.1：0.15~0.2 is placed in electricity
React 60~120min in arc stove at 1200~1600 DEG C, to being completely melt, metal supplementary set agent effect is that supplementary set has for fully reaction
Valency metal forms alloy, and cosolvent effect is fluxing and the viscosity in adjustment electric arc furnaces molten bath；Due to density in electric arc furnaces molten bath
Difference nickel containing cobalt liquid and contain AL2O3、SiO2Slag liquid form layering, the liquid alloy of the nickel containing cobalt is located at lower floor, contains
AL2O3、SiO2Slag liquid flow out to obtain cobalt-nickel alloy from the discharging opening of electric arc furnaces in upper strata, aluminium alloy；It is provided with electric arc furnaces small
External crucible is used to slag tap, and small external crucible is provided with electrode assembly, containing AL2O3、SiO2Slag liquid flowed out out of electric arc furnaces molten bath after fall into
Small external crucible, electrode assembly, which is in, contains AL2O3、SiO2Slag liquid in, by electrode assembly ensure slag tap when slag liquid temperature；Before small
Bed slag notch bottom is provided with the internal conical flow guiding cylinder with cavity, and guide shell is corresponding with the position of wire swaying roller on tumbling machine
And guide shell bottom is 1.2~1.5 meters away from wire swaying roller distance, the slag liquid liquid level in small external crucible is 40~50cm, can be true
Protecting slag liquid, through guide shell to flow out continuous, smooth-going, flow and flow velocity consistent, containing AL2O3、SiO2Slag liquid through slag notch, guide shell arrange
Go out, obtain temperature and contain AL not less than 1300 DEG C2O3、SiO2Slag liquid；
Slag liquid of the temperature that step 4, step 3 obtain not less than 1300 DEG C flows to tumbling machine at a high speed on the wire swaying roller of rotation, through height
Fast centrifugal action forms filamentary fibers, and the rotating speed of centrifugal drying silk is 1300~1500r/min；Filamentary fibers by tumbling machine with
The air-introduced machine of condensers junction installation is blowed to condensers negative pressure via 750~900mm of diameter delivery conduit to be collected to obtain
Blanket semi-finished product；
The blanket semi-finished product that step 5, step 4 obtain, which enter, dries drying in Drying unit, drying temperature is 800~1200 DEG C；
Blanket product after drying forms needle punched blanket by needing machine acupuncture, the blanket product after drying is had toughness；
The needle punched blanket that step 6, step 5 obtain is cut via filling machine, packaging unit packaging, obtains finished product.
In above-mentioned step 1, adhesive is one or both of waterglass, spent pulping liquor.
In above-mentioned step 3, the agent of metal supplementary set is one kind in iron family element, preferably iron powder.
In above-mentioned step 3, cosolvent be calcium oxide, magnesia, fluorite, in aluminum oxide any one or it is two or more
Mixture.
In above-mentioned step 3, guide shell material is tungsten material, high temperature resistant, increases service life, ensures going out for small external crucible
The combination of cinder notch and tumbling machine.
The high-valued comprehensive utilization process of above-mentioned dead catalyst, the fibre diameter of its obtained glass heat-insulating cotton is 18~50
μm, adaptive temperature is -44 DEG C~100 DEG C, and density is 24~28kg/ m3, thermal conductivity factor≤0.034, burning grade is fire retardant
Level, thermal resistance value >=2.5.
The high-valued comprehensive utilization process of dead catalyst of the present invention, its cobalt-nickel alloy rate of recovery are more than 99.95%, and slag liquid is whole
Industrial glass heat-preservation cotton is made.
The high-valued comprehensive utilization process of dead catalyst slag of the present invention, material composition is by weight percentage in its dead catalyst slag
For：AL2O3 57~70%, SiO2 12~25%, Ni5~10%, Co3~8%.
Presently preferred embodiments of the present invention, rather than limitation of the present invention are the foregoing is only, is not departing from the essence of the present invention
In the case of refreshing and scope, all equivalent changes and modifications made according to scope of the present invention patent, it should all belong to the special of the present invention
Within sharp protection domain.
Claims (7)
1. a kind of high-valued comprehensive utilization process of dead catalyst slag, it is characterized in that：It comprises the following steps：
Step 1, by dead catalyst slag and adhesive it is 1 in mass ratio:0.1~0.2 ratio stirs and evenly mixs in mixer
To mixed material；
Step 2, by the mixed material that step 1 obtains by belt conveyor be sent into ball press in granulating and forming, it is small to obtain granularity
In 5cm spherical material；
Step 3, by spherical material and the agent of metal supplementary set, cosolvent according to mass ratio 1：0.05~0.1：0.15~0.2 is placed in electricity
React 60~120min in arc stove at 1200~1600 DEG C, fully reaction is to being completely melt；Due to density in electric arc furnaces molten bath
The liquid of difference nickel containing cobalt is with containing AL2O3、SiO2Slag liquid formed layering, the liquid alloy of the nickel containing cobalt is located at lower floor, containing AL2O3、
SiO2Slag liquid flow out to obtain cobalt-nickel alloy from the discharging opening of electric arc furnaces in upper strata, aluminium alloy；Small external crucible is provided with electric arc furnaces
For slagging tap, small external crucible is provided with electrode assembly, containing AL2O3、SiO2Slag liquid flowed out out of electric arc furnaces molten bath after fall into it is small before
Bed, electrode assembly, which is in, contains AL2O3、SiO2Slag liquid in；Small external crucible slag notch bottom is provided with the internal taper with cavity and led
Flow cartridge, guide shell is corresponding with the position of wire swaying roller on tumbling machine and guide shell bottom away from wire swaying roller distance is 1.2~1.5 meters,
Slag liquid liquid level in small external crucible is 40~50cm, containing AL2O3、SiO2Slag liquid through slag notch, guide shell discharge, obtain temperature
Degree contains AL not less than 1300 DEG C2O3、SiO2Slag liquid；
Slag liquid of the temperature that step 4, step 3 obtain not less than 1300 DEG C flows to tumbling machine at a high speed on the wire swaying roller of rotation, through height
Fast centrifugal action forms filamentary fibers, and the rotating speed of centrifugal drying silk is 1300~1500r/min；Filamentary fibers by tumbling machine with
The air-introduced machine of condensers junction installation is blowed to condensers negative pressure via 750~900mm of diameter delivery conduit to be collected to obtain
Blanket semi-finished product；
The blanket semi-finished product that step 5, step 4 obtain, which enter, dries drying in Drying unit, drying temperature is 800~1200 DEG C；
Blanket product after drying forms needle punched blanket by needing machine acupuncture, the blanket product after drying is had toughness；
The needle punched blanket that step 6, step 5 obtain is cut via filling machine, packaging unit packaging, obtains finished product.
2. the high-valued comprehensive utilization process of dead catalyst slag according to claim 1, it is characterized in that：In its step 3, metal
Supplementary set agent is one kind in iron family element.
3. the high-valued comprehensive utilization process of dead catalyst slag according to claim 1, it is characterized in that：In its step 3, hydrotropy
Agent is any one or two or more mixtures in calcium oxide, magnesia, fluorite, aluminum oxide.
4. the high-valued comprehensive utilization process of dead catalyst slag according to claim 1, it is characterized in that：In its step 3, water conservancy diversion
Cylinder material is tungsten material.
5. the high-valued comprehensive utilization process of dead catalyst slag according to claim 1, it is characterized in that：Its obtained glass is protected
The fibre diameter of warm cotton is 18~50 μm, and adaptive temperature is -44 DEG C~100 DEG C, and density is 24~28kg/ m3, thermal conductivity factor≤
0.034, burning grade is fire retardant level, thermal resistance value >=2.5.
6. the high-valued comprehensive utilization process of dead catalyst slag according to claim 1, it is characterized in that：Its cobalt-nickel alloy reclaims
Rate is more than 99.95%, and industrial glass heat-preservation cotton is all made in slag liquid.
7. the high-valued comprehensive utilization process of dead catalyst slag according to claim 1, it is characterized in that：In its dead catalyst slag
Material composition is by weight percentage：AL2O3 57~70%, SiO2 12~25%, Ni5~10%, Co3~8%.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113072305A (en) * | 2021-04-20 | 2021-07-06 | 洛阳昊海环保科技有限公司 | Method for preparing mineral wool and method for utilizing waste in production process of mineral wool |
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| WO2007084023A1 (en) * | 2006-01-18 | 2007-07-26 | Obschestvo S Organichennoi Otvestvennostyu 'bazaltoplastik' | Method for producing a flake material from a mineral melt, device for carrying out said method and a polymer composition filled with flake material for obtaining a protective barrier coating on different surfaces |
| EP1832676A1 (en) * | 2006-03-11 | 2007-09-12 | Johns Manville Europe GmbH | New composite |
| CN102531375A (en) * | 2012-01-06 | 2012-07-04 | 山西国际电力科技有限公司 | Method for preparing inorganic refractory fiber product from thermal-state pulverized fuel ash or slag |
| CN103290223A (en) * | 2013-05-28 | 2013-09-11 | 北京矿冶研究总院 | Comprehensive recovery method for multiple metals of waste catalyst |
| CN106367554A (en) * | 2016-08-30 | 2017-02-01 | 宝钢发展有限公司 | Method for extracting iron and valuable metal from secondary resources and producing slag wool |
| CN106673453A (en) * | 2016-12-19 | 2017-05-17 | 江苏省冶金设计院有限公司 | Utilization method of red mud slag |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007084023A1 (en) * | 2006-01-18 | 2007-07-26 | Obschestvo S Organichennoi Otvestvennostyu 'bazaltoplastik' | Method for producing a flake material from a mineral melt, device for carrying out said method and a polymer composition filled with flake material for obtaining a protective barrier coating on different surfaces |
| EP1832676A1 (en) * | 2006-03-11 | 2007-09-12 | Johns Manville Europe GmbH | New composite |
| CN102531375A (en) * | 2012-01-06 | 2012-07-04 | 山西国际电力科技有限公司 | Method for preparing inorganic refractory fiber product from thermal-state pulverized fuel ash or slag |
| CN103290223A (en) * | 2013-05-28 | 2013-09-11 | 北京矿冶研究总院 | Comprehensive recovery method for multiple metals of waste catalyst |
| CN106367554A (en) * | 2016-08-30 | 2017-02-01 | 宝钢发展有限公司 | Method for extracting iron and valuable metal from secondary resources and producing slag wool |
| CN106673453A (en) * | 2016-12-19 | 2017-05-17 | 江苏省冶金设计院有限公司 | Utilization method of red mud slag |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113072305A (en) * | 2021-04-20 | 2021-07-06 | 洛阳昊海环保科技有限公司 | Method for preparing mineral wool and method for utilizing waste in production process of mineral wool |
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| CN107354583B (en) | 2019-05-28 |
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