CN108996913B - Application of manganese-containing oxide in direct production of mineral wool from ferronickel slag - Google Patents
Application of manganese-containing oxide in direct production of mineral wool from ferronickel slag Download PDFInfo
- Publication number
- CN108996913B CN108996913B CN201811021042.8A CN201811021042A CN108996913B CN 108996913 B CN108996913 B CN 108996913B CN 201811021042 A CN201811021042 A CN 201811021042A CN 108996913 B CN108996913 B CN 108996913B
- Authority
- CN
- China
- Prior art keywords
- slag
- ferronickel
- mineral wool
- manganese
- melt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
Abstract
The invention relates to the use of a manganese-oxygen containing compound in the production of mineral wool; belongs to the field of comprehensive recovery and utilization of metallurgical solid wastes. The manganese-containing oxide is applied to the production of mineral wool; taking nickel-iron slag as a raw material; adding a manganese-containing oxide serving as a process control agent into the ferronickel slag, and heating to melt to obtain a melt; or mixing the process control agent with the slag outlet ferronickel slag flow to obtain a melt, and preparing the melt into mineral wool; the process control enables the temperature span interval of the melt to be 50-115 ℃ when the viscosity interval of the melt is 1-5 Pa.s. The invention skillfully utilizes the reasonable proportion of the square manganese ore and the ferronickel smelting waste residue, obviously improves the physical and chemical properties of the ferronickel smelting waste residue, enables the ferronickel smelting waste residue to become a high-quality raw material for mineral wool production, solves the problem that the ferronickel waste residue is not suitable for producing the mineral wool, can be widely applied to the fields of buildings and the like, and realizes the recycling and economic application of the waste residue.
Description
Technical Field
The invention relates to an application of manganese-containing oxide in the direct production of mineral wool from ferronickel slag; belongs to the field of comprehensive recovery and utilization of metallurgical solid wastes.
Background
Mineral wool is a general term for different types of inorganic materials and mainly comprises rock wool, glass wool and slag wool, and most of the mineral wool production raw materials comprise basalt, diabase, dolomite, granite and the like. The mineral wool fiber has the properties of light weight, heat preservation, heat insulation, sound insulation, shock resistance and the like, is commonly used as a heat preservation material, a fireproof material and a sound absorption material, mainly comprises a heat preservation plate, a heat preservation felt, a sound absorption plate and the like, and is widely used in the departments of metallurgy, machinery, building, chemical industry, traffic and the like.
The organic heat-insulating material is not recommended to use due to the defects of poor fireproof performance and the like, and mineral wool at home and abroad has huge demand market and is in the situation of short supply and short demand. However, the development and the start of mineral wool in China are late, the yield is low, and the requirements of the building market and other fields on heat insulation materials cannot be met.
At present, no mature industrial application of tempering and direct fiber forming of the ferronickel slag exists in China, and the existing mineral wool production is mainly carried out by melting rock by devices such as a cupola furnace, an electric arc furnace and the like. Not only a large amount of mineral resources are consumed, but also a large amount of energy sources such as coke and the like are consumed, and the energy consumption for producing 1 ton of mineral wool is up to 490kg of standard coal. If the heat of molten ferronickel slag is fully utilized in the production of the submerged arc furnace of the ferronickel enterprise, and the slag wool is directly produced after the modifier is added into the slag, the energy consumption is greatly reduced, and great economic and social benefits can be created.
It is a mature technology to produce mineral wool products by using metallurgical slag with specific component content, the Japanese iron of New day and the Chinese Taiyuan iron and steel both utilize the production line of mineral wool boards by using blast furnace slag, and Chinese patent (application No. CN 104445909A, a novel slag wool fiber board) and the like also disclose relevant patents. Along with the rapid increase of the ferronickel smelting waste residue, the resource utilization of the ferronickel smelting waste residue is more important, and Chinese patent application No. CN 102399055A, which is a method for preparing superfine inorganic fiber by using the ferronickel smelting waste residue, discloses a method for producing mineral fiber by using basalt and the ferronickel smelting waste residue.
In the above methods, it is difficult to realize a wide temperature range of the fluid at an appropriate viscosity by a simple control agent; thereby making it difficult to make the waste slag a good quality mineral fiber raw material.
Disclosure of Invention
The invention provides an application of manganese-containing oxide in the direct production of mineral wool from ferronickel slag, aiming at the defects of the prior process for directly producing mineral wool from ferronickel slag.
The invention relates to an application of manganese-containing oxide in the direct production of mineral wool from ferronickel slag; taking nickel-iron slag as a raw material; adding a manganese-containing oxide serving as a process control agent into the ferronickel slag, and heating to melt to obtain a melt;
or mixing the process control agent with the slag outlet ferronickel slag flow to obtain a melt, and preparing the melt into mineral wool; the process control enables the temperature span interval of the melt to be 50-115 ℃ when the viscosity interval of the melt is 1-5 Pa.s.
The invention relates to an application of manganese-containing oxide in the direct production of mineral wool from ferronickel slag; the melting point of the mixture obtained by adding the process control agent into the nickel-iron slag is 1280-1410 ℃. In industrial application, the temperature of the mixture is generally controlled between 1515 ℃ and 1565 ℃ before the mixture is poured into cotton forming equipment.
The invention relates to an application of manganese-containing oxide in the direct production of mineral wool from ferronickel slag; when the viscosity of the melt is 1-5 Pa.s, the temperature span of the melt is 50-115 ℃. In the invention, when the viscosity range is 1-5 Pa.s, the temperature span range is 50-115 ℃, which can be understood as that when the viscosity is changed in the range of 1-5 Pa.s, the temperature of the melt is A when the defined viscosity is minimum, and the temperature of the melt is B when the defined viscosity is maximum; the value range of the | A-B | is 50-115 ℃.
The invention relates to an application of manganese-containing oxide in the direct production of mineral wool from ferronickel slag; the ferronickel slag is preferably ferronickel smelting slag. As further preference; the ferronickel smelting waste residue is slag obtained by laterite-nickel ore through a rotary kiln-submerged arc furnace process (RKEF), wherein the content of MgO (10% < MgO < 40%).
The manganese-containing oxide is applied to the direct production of mineral wool from the ferronickel slag; the manganese-containing oxide is selected from at least one of manganese oxide, manganate, manganese salt and manganese ore; the manganese ore is selected from at least one of manganite, pyrolusite and manganite. Preferably manganite.
The manganese-containing oxide is applied to the direct production of mineral wool from the ferronickel slag; the particle size of the process control agent is 80-200 meshes. Preferably 100 to 180 mesh. Further optimized to be 120-160 meshes.
During actual production, the manganese-containing oxide is applied to the direct production of mineral wool from the ferronickel slag; the manganese-containing oxide (especially the square manganese ore) and the ferronickel smelting waste slag are reasonably proportioned, and are heated and melted in an electric arc furnace after being uniformly mixed; or the square manganese ore is directly mixed with the slag outlet ferronickel smelting waste slag flow, and then the mineral wool is prepared by centrifugal equipment and slag wool separation equipment.
The manganese-containing oxide is applied to the direct production of mineral wool from the ferronickel slag; the mass ratio of the manganese-containing oxide to the nickel-iron slag is 0.01-0.10: 1. preferably 0.01-0.07: 1; further preferably 0.02-0.07: 1; further preferably 0.03 to 0.07: 1.
The manganese-containing oxide is applied to the direct production of mineral wool from the ferronickel slag; when the nickel-iron slag is ferronickel smelting waste slag and the manganese-containing oxide is manganosite, the mass ratio of the manganosite to the ferronickel smelting waste slag is 0.01-0.10: 1. preferably 0.01-0.07: 1; further preferably 0.02-0.07: 1; further preferably 0.03 to 0.07: 1. Therefore, the operation greatly widens the temperature span of the ferronickel smelting waste slag melt when the viscosity interval is 1-5 Pa.s, and necessary conditions are provided for realizing industrial production. And simultaneously provides necessary conditions for obtaining high-quality mineral wool.
The manganese-containing oxide is applied to the direct production of mineral wool from the ferronickel slag; in industrial application, the operation steps are as follows:
(1) the process control agent and the ferronickel slag are proportioned, namely the ferronickel smelting waste (including liquid or/and solid) and the square manganese ore are reasonably proportioned, wherein the mass ratio of the square manganese ore to the waste slag is 0.01-0.10: 1;
(2) the process control agent is uniformly mixed with the ferronickel slag, namely, the square manganese ore and the ferronickel smelting slag which are uniformly mixed according to the proportion are put into
Heating and melting in an electric furnace; or directly mixing square manganese ore with the slag outlet ferronickel smelting waste slag flow;
(3) measuring temperature and sampling, measuring temperature and sampling after melting, and judging viscosity according to a viscosity-temperature curve;
(4) slag wool production, namely pouring slag with proper temperature and viscosity into a cotton forming device to form cotton.
In industrial application, the process parameters such as the rotating speed of the centrifugal machine need to be reasonably adjusted, but the adjusting method and means can adopt
The prior art is provided. .
The invention skillfully utilizes a single proper amount of manganese-containing oxide as a process control agent; through the reasonable proportion between the nickel-iron smelting waste slag and the waste slag, the physical and chemical properties of the waste slag are obviously improved, and particularly, the temperature range of the melt in 1-5 Pa.s is widened; this provides the necessary conditions for obtaining high quality slag wool. Meanwhile, the problem that the ferronickel slag is not suitable for directly producing the mineral wool or the process is difficult to control in the process of producing the mineral wool is solved. The product prepared by the invention can be widely applied to the fields of buildings and the like, and realizes the resource utilization and economic application of waste residues.
Compared with other inventions, the invention has the following advantages:
(1) according to the invention, a proper amount of manganese-containing oxide (including manganosite) is used as a process control agent for the first time, the melting point of the ferronickel smelting waste residue after being added is obviously reduced, and when the process control agent is added into the ferronickel slag and heated to be molten, the melting temperature of the electric furnace is effectively reduced; when the process control agent is directly mixed with the ferronickel slag flow at the slag outlet, the sensible heat of the slag can be utilized for heat preservation to produce mineral wool, and the slag can directly produce the mineral wool without an external heating source. The method effectively saves electric energy and reduces the process production difficulty and the production cost.
(2) The viscosity-temperature curve of the raw materials with corresponding proportion is obtained by performing a pre-experiment in the process production, so that the viscosity at the corresponding temperature is obtained by comparing the viscosity-temperature curves after the temperature of the melt is measured in the production process, and the accurate cotton forming temperature is mastered. The viscosity-temperature curve is measured by a pre-experiment, so that the process production can be accurately guided, and the stable production and the product quality can be effectively ensured.
Detailed Description
The practice of producing mineral wool from ferronickel slag after tempering in a 1t electric furnace and a four-rod centrifugal device. The water-quenched ferronickel waste residue obtained by the laterite-nickel ore through a rotary kiln-submerged arc furnace process (RKEF) has the average components as shown in the following table:
| composition (I) | TNi | TFe | SiO2 | CaO | MgO | Al2O3 | Cr2O3 | TiO2 |
| Percent by weight/%) | 0.06 | 6.94 | 47.95 | 5.49 | 31.56 | 4.42 | 1.54 | 0.32 |
The production and manufacture of the mineral wool are carried out by adopting the raw materials and the equipment.
Example 1
The embodiment aims at 1t of the electric arc furnace to produce mineral wool by remelting quenched and tempered cold ferronickel waste slag. 200kg of ferronickel waste residue, 12kg of square manganese ore and 150 meshes of square manganese ore granularity. The mass ratio of the manganite to the waste slag is 0.06. The square manganese ore and the waste slag are uniformly mixed and then added into an electric furnace. And (4) arcing and heating, wherein after 45min, the raw materials are completely melted down, measuring the temperature, and after the temperature reaches 1550 ℃, starting the electric furnace to the heat preservation power. Taking 500g of slag, and measuring the viscosity value of the slag in a temperature range of 1450-1550 ℃ in a viscometer. Measuring the temperature of the slag to 1520 ℃ after the temperature-viscosity value is proper; pouring the furnace to remove slag, pouring the slag onto rollers of a four-roller centrifuge, wherein the rotating speeds of the four rollers are 1#2070r/min, 2#3093r/min, 3#4350r/min and 4#5800r/min respectively; the slag wool is collected by a cotton collecting chamber, and a mineral wool product is obtained after the subsequent procedures. Process steps and temperature measurement sampling results in example 1:
the mineral wool prepared by the process is detected according to national standard GT/T11835-2016 rock wool for heat insulation, mineral slag wool and products, the detection shows that the product quality meets the national standard, and the specific results are shown in the following table:
| detecting items | Index value | Example 1 |
| Fiber diameter (μm) | ≤7 | 5.5 |
| Density/(kg. m)-3) | ≥40 | 80 |
| Thermal conductivity (average temperature 25 ℃ C.)/(W.m)-1·K-1) | ≤0.040 | 0.026 |
| Temperature of load contraction/. degree.C | ≥600 | 640 |
| Organic matter content (mass fraction)/%) | ≤4.00 | 3.2 |
| Moisture content of mass% | ≤1.00 | 0.55 |
Example 2
The embodiment aims at 1t of the electric arc furnace to produce mineral wool by remelting quenched and tempered cold ferronickel waste slag. 200kg of ferronickel waste residue, 10kg of square manganese ore and 140 meshes of square manganese ore granularity. The mass ratio of the manganite to the waste slag is 0.05. The square manganese ore and the waste slag are uniformly mixed and then added into an electric furnace. And (4) arcing and heating, wherein after 48min, the raw materials are completely melted down, measuring the temperature, and after the temperature reaches 1600 ℃, starting the electric furnace to the heat preservation power. Taking 500g of slag, and measuring the viscosity value of the slag in a temperature range of 1450-1600 ℃ in a viscometer. Measuring the temperature of the molten slag to 1542 ℃ after the temperature-viscosity value is proper; pouring the furnace to remove slag, pouring the slag onto rollers of a four-roller centrifuge, wherein the rotating speeds of the four rollers are 1#2070r/min, 2#3093r/min, 3#4350r/min and 4#5800r/min respectively; the slag wool is collected by a cotton collecting chamber, and a mineral wool product is obtained after the subsequent procedures. Process steps and temperature measurement sampling results in example 2:
the mineral wool prepared by the process is detected according to national standard GT/T11835-2016 rock wool for heat insulation, mineral slag wool and products, the detection shows that the product quality meets the national standard, and the specific results are shown in the following table:
| detecting items | Index value | Example 1 |
| Fiber diameter (μm) | ≤7 | 4.5 |
| Density/(kg. m)-3) | ≥40 | 64 |
| Thermal conductivity (average temperature 25 ℃ C.)/(W.m)-1·K-1) | ≤0.040 | 0.032 |
| Temperature of load contraction/. degree.C | ≥600 | 723 |
| Organic matter content (mass fraction)/%) | ≤4.00 | 3.5 |
| Moisture content of mass% | ≤1.00 | 0.64 |
Example 3
The embodiment aims at 1t of the electric arc furnace to produce mineral wool by remelting quenched and tempered cold ferronickel waste slag. 200kg of ferronickel waste residue, 8kg of square manganese ore and 120 meshes of square manganese ore granularity. The mass ratio of the manganite to the waste slag is 0.04. The square manganese ore and the waste slag are uniformly mixed and then added into an electric furnace. And (4) arcing and heating, wherein after 52min, the raw materials are completely melted down, measuring the temperature, and after the temperature reaches 1600 ℃, starting the electric furnace to the heat preservation power. Taking 500g of slag, and measuring the viscosity value of the slag in a temperature range of 1450-1600 ℃ in a viscometer. After the temperature-viscosity value is proper, the temperature of the slag is 1560 ℃; pouring the furnace to remove slag, pouring the slag onto rollers of a four-roller centrifuge, wherein the rotating speeds of the four rollers are 1#2070r/min, 2#3093r/min, 3#4350r/min and 4#5800r/min respectively; the slag wool is collected by a cotton collecting chamber, and a mineral wool product is obtained after the subsequent procedures. Process steps and temperature measurement sampling results in example 3:
the mineral wool prepared by the process is detected according to national standard GT/T11835-2016 rock wool for heat insulation, mineral slag wool and products, the detection shows that the product quality meets the national standard, and the specific results are shown in the following table:
| detecting items | Index value | Example 1 |
| Fiber diameter (μm) | ≤7 | 6.9 |
| Density/(kg. m)-3) | ≥40 | 47 |
| Thermal conductivity (average temperature 25 ℃ C.)/(W.m)-1·K-1) | ≤0.040 | 0.022 |
| Temperature of load contraction/. degree.C | ≥600 | 689 |
| Organic matter content (mass fraction)/%) | ≤4.00 | 3.7 |
| Moisture content of mass% | ≤1.00 | 0.49 |
Comparative example 1
The other conditions were the same as in example 1 except that: 200kg of ferronickel waste residue, 40kg of square manganese ore, 150 meshes of square manganese ore granularity and 0.20 percent of square manganese ore and waste residue; the large addition of the manganite causes the melting point of the ferronickel smelting waste slag to be greatly reduced, and the excessive addition of the manganite causes the melt to be sharply narrowed to 38 ℃ at the temperature span of 1-5 Pa.s; the mineral wool product prepared according to the comparative example 1 is tested by the national standard GT/T11835-2016 rock wool for heat insulation, slag wool and products, wherein a plurality of indexes can not meet the quality requirements, and the specific results are shown in the following table:
| detecting items | Index value | Comparative example 1 |
| Fiber diameter (μm) | ≤7 | 8.1 |
| Density/(kg. m-3) | ≥40 | 42 |
| Thermal conductivity (average temperature 25 ℃ C.)/(W.m)-1·K-1) | ≤0.040 | 0.053 |
| Temperature of load contraction/. degree.C | ≥600 | 521 |
| Organic matter content (mass fraction)/%) | ≤4.00 | 3.1 |
| Moisture content of mass% | ≤1.00 | 2.31 |
Comparative example 2
The other conditions were the same as in example 1 except that: 200kg of cold-state ferronickel waste residue, 12kg of square manganese ore, 60-mesh square manganese ore granularity and 0.06 mass ratio of the square manganese ore to the waste residue; the particle size of the square manganese ore is 60 meshes, the mineral wool product prepared according to the comparative example 2 is detected by the national standard GT/T11835-2016 rock wool for heat insulation, slag wool and products, wherein a plurality of indexes can not meet the quality requirements, and the specific results are shown in the following table:
| detecting items | Index value | Comparative example 2 |
| Fiber diameter (μm) | ≤7 | 9.1 |
| Density/(kg. m)-3) | ≥40 | 44 |
| Thermal conductivity (average temperature 25 ℃ C.)/(W.m)-1·K-1) | ≤0.040 | 0.066 |
| Temperature of load contraction/. degree.C | ≥600 | 490 |
| Organic matter content (mass fraction)/%) | ≤4.00 | 3.3 |
| Moisture content of mass% | ≤1.00 | 3.02 |
Comparative example 3
The other conditions were the same as in example 1 except that: no manganite was added. The temperature span of the melt is sharply narrowed to 21 ℃ at the temperature of 1-5 Pa.s; the mineral wool product prepared according to the comparative example 3 is tested by the national standard GT/T11835-2016 rock wool for heat insulation, slag wool and products, wherein a plurality of indexes can not meet the quality requirements, and the specific results are shown in the following table:
Claims (7)
1. the application of manganese-containing oxide in the direct production of mineral wool from ferronickel slag; the method is characterized in that: taking nickel-iron slag as a raw material; adding a manganese-containing oxide serving as a process control agent into the ferronickel slag, and heating to melt to obtain a melt; preparing mineral wool from the melt; the process control enables the temperature span interval of the melt to be 50-115 ℃ when the viscosity interval of the melt is 1-5 Pa.s; the process control agent is at least one of manganite, pyrolusite and manganite; the mass ratio of the manganese-containing oxide to the nickel-iron slag is 0.01-0.10: 1.
2. use of a manganese-containing oxide according to claim 1 in the direct production of mineral wool from ferronickel slag; the method is characterized in that: the melting point of the mixture obtained by adding the process control agent into the nickel-iron slag is 1280-1410 ℃.
3. Use of a manganese-containing oxide according to claim 1 in the direct production of mineral wool from ferronickel slag; the method is characterized in that: the nickel-iron slag is ferronickel smelting waste slag.
4. Use of a manganese-containing oxide according to claim 1 in the direct production of mineral wool from ferronickel slag; the method is characterized in that: the particle size of the process control agent is 80-200 meshes.
5. Use of a manganese-containing oxide according to claim 1 in the direct production of mineral wool from ferronickel slag; the method is characterized in that: when the nickel-iron slag is ferronickel smelting waste slag and the manganese-containing oxide is manganosite, the mass ratio of the manganosite to the ferronickel smelting waste slag is 0.01-0.07: 1.
6. use of a manganese-containing oxide according to claim 5 in the direct production of mineral wool from ferronickel slag; the method is characterized in that: the mass ratio of the manganosite to the ferronickel smelting waste residue is 0.02-0.07: 1.
7. Use of a manganese-containing oxide according to claim 6 in the direct production of mineral wool from ferronickel slag; the method is characterized in that: the mass ratio of the manganosite to the ferronickel 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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108996913A CN108996913A (en) | 2018-12-14 |
| CN108996913B true CN108996913B (en) | 2020-07-17 |
Family
ID=64590933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811021042.8A Active CN108996913B (en) | 2018-09-03 | 2018-09-03 | Application of manganese-containing oxide in direct production of mineral wool from ferronickel slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108996913B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (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 |
-
2018
- 2018-09-03 CN CN201811021042.8A patent/CN108996913B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108996913A (en) | 2018-12-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108996913B (en) | Application of manganese-containing oxide in direct production of mineral wool from ferronickel slag | |
| CN104529147A (en) | Method for producing mineral wool fiber by using high-temperature liquid waste slags of metallurgical furnace as raw material | |
| CN107021641B (en) | Method for producing mineral wool from manganese-silicon alloy slag | |
| CN102161567B (en) | Method for smelting nickel alloy by utilizing ore-smelting electric furnace and producing mineral wool fiber by melting waste residues and utilizing sensible heat | |
| CN101559953B (en) | Method for using high-temperature liquid silicon manganese alloy slag as raw material to produce cast stone | |
| CN101560053A (en) | Production method of mineral wool with high-temperature liquid ferroalloy waste as raw materials | |
| CN103803793B (en) | Method for preparing inorganic fibers by using direct blowing of blast furnace molten slag | |
| CN104496189B (en) | A kind of with flyash and desalination river sand as raw material without boron high-performance glass fiber and preparation method thereof | |
| CN104370455A (en) | Method and device for producing mineral wool by matching molten-state blast furnace slag with mine tailings | |
| CN110669935A (en) | Process for multi-component separation and tailing quenching and tempering utilization of red mud | |
| CN104891814A (en) | Method for preparing high temperature resistance foam material by adopting molten blast furnace slag | |
| CN103553651A (en) | Heat-resistant concrete | |
| CN106892559A (en) | A kind of production technology of building glass | |
| CN112661402A (en) | Method for preparing mineral fiber by melting garbage fly ash plasma, heat-insulating mineral wool and application | |
| CN108178520A (en) | A kind of silicon manganese slag prepares the control method of the shot content of mineral wool | |
| CN102399055A (en) | Method for preparing super-fine inorganic fiber by using nickel-iron smelting waste residue | |
| CN110255913A (en) | A kind of solid waste silicon manganese slag that shot content is controllable production mineral wool modulator approach | |
| CN104445910B (en) | A kind of mineral wool and its production method | |
| CN109896747A (en) | A kind of method that one-step method makes ore-rock cotton using lateritic nickel ore high temperature hot melt waste residue | |
| CN109052976B (en) | Use of boron-oxygen containing compounds in mineral wool production | |
| CN112707645A (en) | Method for preparing mineral fiber based on thermal state coal gasification furnace slag, heat preservation mineral wool and application | |
| CN104445963A (en) | Method for preparing glass fiber from smelting blast furnace slag | |
| CN105314897B (en) | A kind of method that utilization iron tailings adjusts blast furnace slag viscosity coefficient | |
| CN111072286A (en) | Rock and mineral wool product and method for preparing mineral wool by quenching and tempering silica sand and albite | |
| CN110451792B (en) | Method for producing mineral wool by using silicomanganese and nickel-iron alloy smelting waste residues |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |