CN108996913A - One kind is directly produced in mineral wool in ferronickel slag containing Mn oxide and is applied - Google Patents
One kind is directly produced in mineral wool in ferronickel slag containing Mn oxide and is applied Download PDFInfo
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- CN108996913A CN108996913A CN201811021042.8A CN201811021042A CN108996913A CN 108996913 A CN108996913 A CN 108996913A CN 201811021042 A CN201811021042 A CN 201811021042A CN 108996913 A CN108996913 A CN 108996913A
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- mineral wool
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- ferronickel slag
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- 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
- C03C13/06—Mineral fibres, e.g. slag wool, mineral wool, rock wool
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Abstract
The present invention relates to one kind to apply in production mineral wool containing manganese-oxygen compound；Belong to metallurgical solid waste comprehensive reutilization field.A kind of Mn oxide that contains of the invention is applied in production mineral wool；Using ferronickel slag as raw material；Containing Mn oxide, as process control agent, process control agent to be added to and is heated to melting to obtain melt in ferronickel slag；Or process control agent is mixed into obtain melt with slag notch ferronickel slag stream, mineral wool is made in melt；The process control makes melt when viscosity section is 1~5Pas, and temperature span section is 50~115 DEG C.The present invention cleverly utilizes the rational proportion between manganosite and nickel-iron smelting waste residue, significantly improve the physical and chemical properties of nickel-iron smelting waste residue, so that nickel-iron smelting waste residue becomes the quality raw materials of mineral wool production, solve the problems, such as that ferronickel waste residue is not suitable for producing mineral wool, obtained product can be widely applied to the fields such as building, realize recycling, the economy purposes of waste residue.
Description
Technical field
It directly produces in mineral wool and applies in ferronickel slag containing Mn oxide the present invention relates to one kind；It is discarded to belong to metallurgical solid
Object comprehensive reutilization field.
Background technique
Mineral wool is the general designation of different types of inorganic material, mainly includes rock wool, mineral wool and mineral wool, most of mines
The raw materials for production of object cotton include basalt, diabase, dolomite and granite etc..Mineral wool fibres have it is light, heat preservation, every
The performances such as heat, sound insulation, shockproof, common to do thermal insulation material, fire proofing material and sound-absorbing material, product type mainly includes heat preservation
Plate, insulation quilt, abatvoix etc. are widely used in the departments such as metallurgy, mechanical, building, chemical industry and traffic.
Organic insulation material is used since the disadvantages of fire protecting performance is poor is not recommended, and the market of domestic and international mineral wool is huge
Greatly, in the situation that supply falls short of demand.But the development of China's mineral wool is started late, and yield is lower, is far from satisfying building city
Field and demand of other fields to thermal insulation material.
The ferronickel slag of maturation not yet domestic at present is quenched and directly at fine industrial applications, existing mineral wool production
Mainly carried out with the equipment such as furnace cupola, electric arc furnaces fusing rock.A large amount of mineral resources are not only consumed, but also need to consume big
The energy such as coke are measured, 1 ton of mineral wool energy consumption is produced and is up to 490kg mark coal.If sufficiently sharp in the production of ferronickel enterprise mineral hot furnace
With the heat of molten state ferronickel slag, mineral wool is directly produced after modifying agent is added in slag, energy consumption will substantially reduce,
And huge economic and social benefit can be created.
It is a mature technology, Japanese Nippon Steel using the metallurgical slag production mineral wool products of special component content
There are the production line using blast furnace slag production mineral wool panels, while Chinese patent (application number CN with the Taiyuan steel of China
A kind of novel slag wool fiber plate of 104445909 A) etc. also disclose the patent of related fields.It is fast with nickel-iron smelting waste residue
Speed increases, and the resource utilization of nickel-iron smelting waste residue is also more paid attention to, a kind of Chinese patent (benefit of 102399055 A of application number CN
With the method that nickel-iron smelting waste residue produces ultra-fine inorganic fibre) disclose it is a kind of using basalt and nickel-iron smelting waste residue production mine
The method of fibres.
The above method is all difficult to realize that its fluid is also equipped under proper viscosity by a kind of simple controlling agent wider
Temperature region；And then cause so that waste residue, which is difficult, becomes good mineral fibres raw material.
Summary of the invention
The deficiency that the present invention directly produces mineral wool technique for existing ferronickel slag provides one kind containing Mn oxide in ferronickel
Slag is directly produced and is applied in mineral wool.
A kind of application directly produced in mineral wool containing Mn oxide in ferronickel slag of the present invention；Using ferronickel slag as raw material；With
Containing Mn oxide as process control agent, process control agent is added to and is heated to melting to obtain melt in ferronickel slag；
Or process control agent is mixed into obtain melt with slag notch ferronickel slag stream, mineral wool is made in melt；It is described excessively program-controlled
For system so that melt is when viscosity section is 1~5Pas, temperature span section is 50~115 DEG C.
A kind of application directly produced in mineral wool containing Mn oxide in ferronickel slag of the present invention；Process control agent is added to
The fusing point of gained mixture is between 1280~1410 DEG C in ferronickel slag.Industrially in application, before pouring into cotton equipment, mixture
Temperature general control between 1515~1565 DEG C.
A kind of application directly produced in mineral wool containing Mn oxide in ferronickel slag of the present invention；The melt is in viscosity section
When for 1~5Pas, temperature span section is 50~115 DEG C.In the present invention the viscosity section be 1~5Pas when its
Temperature span section be 50-115 DEG C it is to be understood that viscosity 1~5Pas change when, define viscosity minimum when, melt
Melt temperature is B when temperature is A, defines viscosity maximum；Then | A-B | value range be 50~115 DEG C.
A kind of application directly produced in mineral wool containing Mn oxide in ferronickel slag of the present invention；The ferronickel slag is preferably nickel
Iron melting waste slag.As a further preference；Nickel-iron smelting waste residue is lateritic nickel ore by rotary kiln-mineral hot furnace technique
(RKEF) slag obtained, the wherein content (10% < MgO < 40%) of MgO.
A kind of directly produce in mineral wool containing Mn oxide in ferronickel slag of the invention is applied；It is described to be selected from manganese containing Mn oxide
Oxide, manganate, manganese salt, at least one of manganese ore；The manganese ore in manganosite, pyrolusite, inclined manganese ore extremely
Few one kind.Preferably manganosite.
A kind of directly produce in mineral wool containing Mn oxide in ferronickel slag of the invention is applied；The process control agent partial size is
80~200 mesh.Preferably 100~180 mesh.It advanced optimizes as 120~160 mesh.
In actual production, a kind of directly produce in mineral wool containing Mn oxide in ferronickel slag of the present invention is applied；Oxygen containing manganese
Rational proportion between compound (especially manganosite) and nickel-iron smelting waste residue, the after mixing heating melting in electric arc furnaces；
Or manganosite is directly mixed with slag notch nickel-iron smelting waste residue stream, then mineral are made by centrifugation apparatus and slag wool separation equipment
Cotton.
A kind of directly produce in mineral wool containing Mn oxide in ferronickel slag of the invention is applied；It is described to contain Mn oxide and ferronickel
The mass ratio of slag is 0.01~0.10:1.Preferably 0.01~0.07:1；Further preferably 0.02~0.07:1；More into one
Step is preferably 0.03~0.07:1.
A kind of directly produce in mineral wool containing Mn oxide in ferronickel slag of the invention is applied；When ferronickel slag is useless for nickel-iron smelting
Slag, when containing Mn oxide being manganosite, the mass ratio of the manganosite and nickel-iron smelting waste residue is 0.01~0.10:1.Preferably
0.01~0.07:1；Further preferably 0.02~0.07:1；It is preferably further 0.03~0.07:1.Operation is very big in this way
Widened nickel-iron smelting waste residue melt viscosity section be 1~5Pas when temperature span, this be its realize industrialization life
Production provides necessary condition.Necessary condition also is provided to obtain the mineral wool of high quality simultaneously.
A kind of directly produce in mineral wool containing Mn oxide in ferronickel slag of the invention is applied；Industrially in application, it is grasped
Make step are as follows:
(1) between process control agent and ferronickel slag burden, i.e. nickel-iron smelting waste residue (including liquid or/and solid-state) and manganosite
Rational proportion, wherein the ratio between manganosite and slag quality be 0.01~0.10:1；
(2) process control agent is uniformly mixed with ferronickel slag, i.e., the manganosite mixed in proportion and nickel-iron smelting gives up
Slag is put into
Heating melting in electric furnace；Or manganosite is directly mixed with slag notch nickel-iron smelting waste residue stream；
(3) thermometric samples, and thermometric sampling is carried out after melting, judges viscosity according to viscosity-temperature curve；
(4) slag wool produces, and temperature and the suitable slag of viscosity are poured into cotton equipment into cotton.
It is industrial in application, the equal technological parameters needs of the revolving speed of centrifuge reasonably adjust, but ways and means of adjustment
It can be used
The prior art.
The present invention is cleverly using single suitable Mn oxide that contains as process control agent；Pass through itself and nickel-iron smelting
Rational proportion between waste residue, it will be apparent that improve the physical and chemical properties of nickel-iron smelting waste residue, especially realize melt 1
Temperature range in~5Pas is widened；This provides necessary condition to obtain high-quality mineral wool.Also solves nickel simultaneously
Scum is not suitable for the problem that technique is uncontrollable during directly producing mineral wool or producing mineral wool.Product obtained by the present invention
It can be widely applied to the fields such as building, realize recycling, the economy purposes of waste residue.
The present invention has the advantages that compared with other inventions
(1) present invention is used as process control agent, nickel after addition containing Mn oxide (including manganosite) using suitable for the first time
The fusing point of iron melting waste slag is substantially reduced, and when use process control agent, which is added in ferronickel slag, is heated to melting, this is effective
Reduce the melting temperature of electric furnace heating；When directly being mixed using process control agent with slag notch ferronickel slag stream, using molten
Slag sensible heat heat preservation production mineral wool, does not need external heat source slag can be realized directly to produce mineral wool.This method is effectively saved
Electric energy, reduces technique production difficulty and production cost.
(2) viscosity-temperature curve for the raw material that preliminary experiment is accordingly matched is carried out in technique production, so as in process of production
Comparison viscosity-temperature curve obtains the viscosity under corresponding temperature after carrying out thermometric to melt, grasps accurately at cotton temperature.Carry out pre- reality
Test obtains viscosity-temperature curve, can accurately produce and instruct to technique, can effectively guarantee that stablizing for production carries out and product matter
Amount.
Specific embodiment
The practice of quenched rear ferronickel slag production mineral wool is carried out in 1t electric furnace and in four rod centrifugation apparatus.Lateritic nickel ore warp
Ferronickel waste residue after the water quenching that rotary kiln-mineral hot furnace technique (RKEF) obtains is crossed, the average assay of slag is as shown in the table:
| Ingredient | TNi | TFe | SiO2 | CaO | MgO | Al2O3 | Cr2O3 | TiO2 |
| Percentage amounts/% | 0.06 | 6.94 | 47.95 | 5.49 | 31.56 | 4.42 | 1.54 | 0.32 |
The manufacturing of mineral wool is carried out using the above raw material and equipment.
Embodiment 1
The embodiment carries out remelting using quenched rear cold conditions ferronickel waste residue for 1t electric arc furnaces and produces mineral wool.Ferronickel is useless
Slag 200kg, manganosite 12kg, manganosite granularity are 150 mesh.Mass ratio between manganosite and waste residue is 0.06.Manganosite and useless
Slag is added in electric furnace after mixing.The starting the arc heats up, and after 45min, raw material is completely melting down, thermometric, after temperature reaches 1550 DEG C,
Electric furnace reaches heat preservation power.Slag 500g is taken, viscosity of the slag in 1450 DEG C of -1550 DEG C of temperature ranges is measured in viscosity apparatus
Value.After Temperature-Viscosity value is suitable, thermometric slag is 1520 DEG C；Furnace is slagged tap, and slag is poured on four rod centrifuge idler wheels, four
Roller revolving speed is respectively 1#2070r/min, 2#3093r/min, 3#4350r/min and 4#5800r/min；Slag wool is obtained by cotton collecting chamber
To collect, mineral wool products are obtained after subsequent handling.Processing step and thermometric sampling result in embodiment 1:
Mineral wool made from above-mentioned technique, according to national standard GT/T 11835-2016 " insulation rock wool, mineral wool and system
Product " it is detected, detection shows that product quality meets national standard, and concrete outcome see the table below:
| Detection project | Index value | Example 1 |
| Fibre diameter (μm) | ≤7 | 5.5 |
| Density/(kgm-3) | ≥40 | 80 |
| Thermal coefficient (25 DEG C of mean temperature)/(Wm-1·K-1) | ≤0.040 | 0.026 |
| Loading shrinkage temperature/DEG C | ≥600 | 640 |
| Content of organics (mass fraction)/% | ≤4.00 | 3.2 |
| Quality hydroscopicity/% | ≤1.00 | 0.55 |
Embodiment 2
The embodiment carries out remelting using quenched rear cold conditions ferronickel waste residue for 1t electric arc furnaces and produces mineral wool.Ferronickel is useless
Slag 200kg, manganosite 10kg, manganosite granularity are 140 mesh.Mass ratio between manganosite and waste residue is 0.05.Manganosite and useless
Slag is added in electric furnace after mixing.The starting the arc heats up, and after 48min, raw material is completely melting down, thermometric, after temperature reaches 1600 DEG C,
Electric furnace reaches heat preservation power.Slag 500g is taken, viscosity of the slag in 1450 DEG C of -1600 DEG C of temperature ranges is measured in viscosity apparatus
Value.After Temperature-Viscosity value is suitable, thermometric slag is 1542 DEG C；Furnace is slagged tap, and slag is poured on four rod centrifuge idler wheels, four
Roller revolving speed is respectively 1#2070r/min, 2#3093r/min, 3#4350r/min and 4#5800r/min；Slag wool is obtained by cotton collecting chamber
To collect, mineral wool products are obtained after subsequent handling.Processing step and thermometric sampling result in embodiment 2:
Mineral wool made from above-mentioned technique, according to national standard GT/T 11835-2016 " insulation rock wool, mineral wool and system
Product " it is detected, detection shows that product quality meets national standard, and concrete outcome see the table below:
| Detection project | Index value | Example 1 |
| Fibre diameter (μm) | ≤7 | 4.5 |
| Density/(kgm-3) | ≥40 | 64 |
| Thermal coefficient (25 DEG C of mean temperature)/(Wm-1·K-1) | ≤0.040 | 0.032 |
| Loading shrinkage temperature/DEG C | ≥600 | 723 |
| Content of organics (mass fraction)/% | ≤4.00 | 3.5 |
| Quality hydroscopicity/% | ≤1.00 | 0.64 |
Embodiment 3
The embodiment carries out remelting using quenched rear cold conditions ferronickel waste residue for 1t electric arc furnaces and produces mineral wool.Ferronickel is useless
Slag 200kg, manganosite 8kg, manganosite granularity are 120 mesh.Mass ratio between manganosite and waste residue is 0.04.Manganosite and waste residue
It is added in electric furnace after mixing.The starting the arc heats up, and after 52min, raw material is completely melting down, thermometric, after temperature reaches 1600 DEG C, electricity
Furnace reaches heat preservation power.Slag 500g is taken, viscosity of the slag in 1450 DEG C of -1600 DEG C of temperature ranges is measured in viscosity apparatus
Value.After Temperature-Viscosity value is suitable, thermometric slag is 1560 DEG C；Furnace is slagged tap, and slag is poured on four rod centrifuge idler wheels, four
Roller revolving speed is respectively 1#2070r/min, 2#3093r/min, 3#4350r/min and 4#5800r/min；Slag wool is obtained by cotton collecting chamber
To collect, mineral wool products are obtained after subsequent handling.Processing step and thermometric sampling result in embodiment 3:
Mineral wool made from above-mentioned technique, according to national standard GT/T 11835-2016 " insulation rock wool, mineral wool and system
Product " it is detected, detection shows that product quality meets national standard, and concrete outcome see the table below:
| Detection project | Index value | Example 1 |
| Fibre diameter (μm) | ≤7 | 6.9 |
| Density/(kgm-3) | ≥40 | 47 |
| Thermal coefficient (25 DEG C of mean temperature)/(Wm-1·K-1) | ≤0.040 | 0.022 |
| Loading shrinkage temperature/DEG C | ≥600 | 689 |
| Content of organics (mass fraction)/% | ≤4.00 | 3.7 |
| Quality hydroscopicity/% | ≤1.00 | 0.49 |
Comparative example 1
Other conditions are consistent with embodiment 1, the difference is that: ferronickel waste residue 200kg, manganosite 40kg, manganosite grain
Degree is 150 mesh, and the ratio between manganosite and waste residue is 0.20；A large amount of additions of manganosite lead to the fusing point of nickel-iron smelting waste residue
It is greatly reduced, while excessive be added of manganosite causes melt sharply to narrow in the temperature span of 1-5Pas to 38 DEG C；Cause
This technique is difficult to realize large-scale industrialization application, and product quality is low, produces according to the mineral wool that comparative example 1 is made
Product are detected through national standard GT/T 11835-2016 " being insulated with rock wool, mineral wool and product ", and plurality of index cannot reach
To quality requirement, concrete outcome be see the table below:
| Detection project | Index value | Comparative example 1 |
| Fibre diameter (μm) | ≤7 | 8.1 |
| Density/(kgm-3) | ≥40 | 42 |
| Thermal coefficient (25 DEG C of mean temperature)/(Wm-1·K-1) | ≤0.040 | 0.053 |
| Loading shrinkage temperature/DEG C | ≥600 | 521 |
| Content of organics (mass fraction)/% | ≤4.00 | 3.1 |
| Quality hydroscopicity/% | ≤1.00 | 2.31 |
Comparative example 2
Other conditions are consistent with embodiment 1, the difference is that: cold conditions ferronickel waste residue 200kg, manganosite 12kg, Fang Meng
Ore particle degree is 60 mesh, and the mass ratio between manganosite and waste residue is 0.06；60 mesh of partial size of manganosite, makes according to comparative example 2
Mineral wool products are detected, plurality of finger through national standard GT/T 11835-2016 " being insulated with rock wool, mineral wool and product "
Mark cannot reach quality requirement, and concrete outcome see the table below:
| Detection project | Index value | Comparative example 2 |
| Fibre diameter (μm) | ≤7 | 9.1 |
| Density/(kgm-3) | ≥40 | 44 |
| Thermal coefficient (25 DEG C of mean temperature)/(Wm-1·K-1) | ≤0.040 | 0.066 |
| Loading shrinkage temperature/DEG C | ≥600 | 490 |
| Content of organics (mass fraction)/% | ≤4.00 | 3.3 |
| Quality hydroscopicity/% | ≤1.00 | 3.02 |
Comparative example 3
Other conditions are consistent with embodiment 1, the difference is that: it is added without manganosite.Temperature of its melt in 1-5Pas
Degree span is sharply narrowed to 21 DEG C；This technique is caused to be difficult to realize large-scale industrialization application, and product quality is low,
The mineral wool products made according to comparative example 3 through national standard GT/T 11835-2016 " insulation rock wool, mineral wool and product " into
Row detection, plurality of index cannot reach quality requirement, and concrete outcome see the table below:
Claims (10)
1. a kind of application directly produced in mineral wool containing Mn oxide in ferronickel slag；It is characterized by: using ferronickel slag as raw material；
Containing Mn oxide, as process control agent, process control agent to be added to and is heated to melting to obtain melt in ferronickel slag；
Or process control agent is mixed into obtain melt with slag notch ferronickel slag stream, mineral wool is made in melt；The process control makes
Melt is obtained when viscosity section is 1~5Pas, temperature span section is 50~115 DEG C.
2. a kind of application directly produced in mineral wool containing Mn oxide in ferronickel slag according to claim 1；Its feature
It is: process control agent is added to the fusing point of gained mixture in ferronickel slag between 1280~1410 DEG C.
3. a kind of application directly produced in mineral wool containing Mn oxide in ferronickel slag according to claim 1；Its feature
Be: the ferronickel slag is nickel-iron smelting waste residue.
4. a kind of application directly produced in mineral wool containing Mn oxide in ferronickel slag according to claim 1；Its feature
Be: the process control agent is at least one of manganosite, pyrolusite, inclined manganese ore.
5. a kind of application directly produced in mineral wool containing Mn oxide in ferronickel slag according to claim 1；Its feature
Be: the process control agent partial size is 80~200 mesh.
6. a kind of application directly produced in mineral wool containing Mn oxide in ferronickel slag according to claim 1；Its feature
Be: the mass ratio containing Mn oxide and ferronickel slag is 0.01~0.10:1.
7. a kind of application directly produced in mineral wool containing Mn oxide in ferronickel slag according to claim 1；Its feature
It is: when ferronickel slag is nickel-iron smelting waste residue, containing Mn oxide is manganosite, the matter of the manganosite and nickel-iron smelting waste residue
Amount is than being 0.01~0.10:1.
8. a kind of application directly produced in mineral wool containing Mn oxide in ferronickel slag according to claim 7；Its feature
Be: the mass ratio of the manganosite and nickel-iron smelting waste residue is 0.01~0.07:1.
9. a kind of application directly produced in mineral wool containing Mn oxide in ferronickel slag according to claim 8；Its feature
Be: the mass ratio of the manganosite and nickel-iron smelting waste residue is 0.02~0.07:1.
10. a kind of application directly produced in mineral wool containing Mn oxide in ferronickel slag according to claim 9；Its feature
Be: the mass ratio of the manganosite and nickel-iron smelting waste residue is 0.03~0.07:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811021042.8A CN108996913B (en) | 2018-09-03 | 2018-09-03 | Application of manganese-containing oxide in direct production of mineral wool from ferronickel slag |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811021042.8A CN108996913B (en) | 2018-09-03 | 2018-09-03 | Application of manganese-containing oxide in direct production of mineral wool from ferronickel slag |
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| CN108996913A true CN108996913A (en) | 2018-12-14 |
| CN108996913B CN108996913B (en) | 2020-07-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110372197A (en) * | 2019-08-27 | 2019-10-25 | 中南大学 | A method of it obtaining ferroalloy smelting waste residue and produces minimum end of melting temperature during qualified mineral wool |
| CN110451792A (en) * | 2019-08-27 | 2019-11-15 | 中南大学 | A method of mineral wool is produced using silicomanganese and dilval melting waste slag |
| CN111410431A (en) * | 2020-04-24 | 2020-07-14 | 北京中冶设备研究设计总院有限公司 | Method for directly preparing mineral wool with high acidity coefficient from ferronickel slag |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101293731A (en) * | 2008-05-27 | 2008-10-29 | 杨铧 | Method for preparing mineral wool by using ferronickel dross sensible heat |
| CN104496167A (en) * | 2014-09-03 | 2015-04-08 | 宝钢矿棉科技（宁波）有限公司 | Conditioning material for granulated wool and preparation method thereof |
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2018
- 2018-09-03 CN CN201811021042.8A patent/CN108996913B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101293731A (en) * | 2008-05-27 | 2008-10-29 | 杨铧 | Method for preparing mineral wool by using ferronickel dross sensible heat |
| CN104496167A (en) * | 2014-09-03 | 2015-04-08 | 宝钢矿棉科技（宁波）有限公司 | Conditioning material for granulated wool and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110372197A (en) * | 2019-08-27 | 2019-10-25 | 中南大学 | A method of it obtaining ferroalloy smelting waste residue and produces minimum end of melting temperature during qualified mineral wool |
| CN110451792A (en) * | 2019-08-27 | 2019-11-15 | 中南大学 | A method of mineral wool is produced using silicomanganese and dilval melting waste slag |
| CN110372197B (en) * | 2019-08-27 | 2021-08-06 | 中南大学 | Method for obtaining minimum melting end point temperature in process of producing qualified slag wool from ferroalloy smelting waste residues |
| CN110451792B (en) * | 2019-08-27 | 2021-09-07 | 中南大学 | Method for producing mineral wool by using silicomanganese and nickel-iron alloy smelting waste residues |
| CN111410431A (en) * | 2020-04-24 | 2020-07-14 | 北京中冶设备研究设计总院有限公司 | Method for directly preparing mineral wool with high acidity coefficient from ferronickel slag |
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| CN108996913B (en) | 2020-07-17 |
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