CN103979937A - Iron tailing far-infrared ceramic material containing rare earth and method for preparing iron tailing far-infrared ceramic material - Google Patents
Iron tailing far-infrared ceramic material containing rare earth and method for preparing iron tailing far-infrared ceramic material Download PDFInfo
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Abstract
The invention discloses an iron tailing far-infrared ceramic material containing rare earth and a method for preparing the iron tailing far-infrared ceramic material. The ceramic material is characterized by comprising the following components in percentage by weight: 35-75% of iron tailing, 1-7% of clay, 6%-25% of silicon dioxide, 6%-25% of calcium carbonate, 2-7% of aluminum oxide and 1-9% of rare earth; the iron tailing comprises main ingredients in percentage by weight: 30-35% of SiO2, 20-25% of Fe2O3, 10-15% of Al2O3, 10-15% of TiO2, as well as small amounts of CaO, Na2O and MgO; rare earth is any one of lanthanum nitrate, europium nitrate, cerium nitrate or neodymium nitrate. The preparation method mainly comprises the steps of carrying out ball milling, sieving, blending, mixing, drying, mixing, carrying out dry pressing and molding and sintering to obtain the iron tailing far-infrared ceramic material containing rare earth, wherein iron tailing, clay, silicon dioxide, calcium carbonate and aluminum oxide are taken as main raw materials and rare earth is taken as an additive.
Description
Technical field
The invention belongs to preparation technology of ceramic materials, be specifically related to a kind of iron tailings far-infrared ceramic material containing rare earth and preparation method thereof.
Background technology
The energy of China 90% and 80% starting material are from Mineral resources.In exploitation of mineral resources process, abandon a large amount of barren rocks and mine tailing causes environmental pollution.According to statistics, because being subject to the restriction of technique of preparing level, production unit, the mine tailing that China's mining industry is produced has reached more than 10,000,000,000 tons, and is the trend increasing year by year.Mine tailing not only takies a large amount of soils, and has brought severe contamination and harm to human being's production, life, has now been subject to the extensive concern of the whole society.Meanwhile, along with a large amount of developments and utilizations of Mineral resources, ore is day by day poor, and mine tailing has also been subject to the attention of countries in the world as secondary resource recycling.China's Mine Tailings Utilization is very low at present, and mill tailings accounts for 30% of industrial solid wastes, but its utilization ratio is only 7%.Most of barghs often only pay attention to the recovery of valuable metal, if only consider, the recovery of valuable metal can not fundamentally solve the problem of mine tailing.Because mine tailing is the solid waste after ore dressing, its non-metallic minerals reaches more than 90%.Therefore, the entirety utilization of mine tailing is the fundamental way that mine tailing utilizes.
Iron tailings is a kind of composite minerals raw material, except containing a small amount of metal, also contains quartz, pyroxene, feldspar, hornblende etc.Its chemical composition is mainly containing SiO
2, Al
2o
3, Fe
2o
3, CaO, MgO etc., also contain a small amount of K
2o, Na
2o and S, the elements such as P.And the pottery being fired into as main raw material taking quartz, feldspar, hard kaoline has emitting far-infrared effect.
Rare earth element has exclusive characteristic.Because 4f orbital electron easily excites, thereby make the coordination of rare earth element produce mutability, the electronics of its 4f track can play the effect of " residue valence ".Rare earth element is added in ceramic batch, can, by forming sosoloid, make ceramic lattice produce distortion on the one hand; On the other hand, rare earth element can stored electrons and oxygen, changes the valent state of other element.CN103664149A file discloses a kind of far-infrared ceramic material and manufacture method thereof, by adding rare earth element, strengthens the vibration of siloxane bond, and then improves far emissive power; CN102418021A file discloses has broadband infrared ceramic material of antisenility function and preparation method thereof under normal temperature, the Praseodymium trioxide neodymium being composited is added in ceramic formula, make free carrier intraband transition or the direct transition of electronics from impurity level to conduction band of the crystalline structure inside of the infra-red china radiative material after sintering, and produce the normal temperature infrared photon radiation of 2～6 mu m wavebands.
In sum, iron tailings not only can be used as ceramic main component, and the composition such as quartz wherein, pyroxene, feldspar, hornblende has emitting far-infrared effect especially; And rare earth element is because of its unique electron structure, be used as the additive of far-infrared ceramic, can improve ceramic far infrared transmissivity.From above patented invention, can find out, although increased ceramic infrared emittance taking rare earth as additive, its high radiated infrared wave band is narrower, and all concentrates on lower wave number scope.
Summary of the invention
For the deficiencies in the prior art, the technical problem that the present invention mainly solves is that a kind of iron tailings far-infrared ceramic material containing rare earth and preparation method thereof is provided.This stupalith is replaced traditional ceramics material composition to discard iron tailings, has overcome to consume the problem of expensive mineral wealth as infrared raw material, and adopt rare earth is additive simultaneously, has strengthened ceramic far infrared transmissivity.The method technique is simple, with low cost, is convenient to industrializing implementation.
The technical scheme that the present invention solves described material technology problem is: design a kind of iron tailings far-infrared ceramic material containing rare earth, the weight percent that it is characterized in that this stupalith raw material consists of: iron tailings 35～75%, clay 1～7%, silicon-dioxide 6～25%, calcium carbonate 6～25%, aluminum oxide 2～7% and rare earth 1～9%, and each component sum is 100%; Described iron tailings main component weight consists of: SiO
230～35%, Fe
2o
320～25%, Al
2o
310～15%, TiO
210～15%, also have a small amount of CaO, Na
2o and MgO, each component sum is 100%; Described rare earth is any in rare earth lanthanum nitrate, europium nitrate, cerous nitrate or neodymium nitrate.
The technical scheme that the present invention solves described method and technology problem is: design a kind of preparation method of the iron tailings far-infrared ceramic material containing rare earth, this preparation method adopts weight percent composition and the following processing step of stupalith raw material of the present invention:
A, iron tailings is put into ball mill ball milling 30～120min, after ball milling, cross 350 mesh sieves, obtain iron tailings powder;
B, get the iron tailings powder obtaining in the steps A of weight 35～75%, add again weight and be 1～7% clay, 6～25% silicon-dioxide, 6～25% calcium carbonate, 2～7% aluminum oxide and 1～9% rare earth, and the water of above-mentioned raw materials weight 15～30%, mix and continue stir 30～90min;
C, by the mixture in step B under 100～120 DEG C of conditions, dry 1～2h;
D, by step C dry after batch mixing after mixing and ball milling 60～90min, sieve;
E, be 25～30MPa by the batch mixing in step D in forming pressure, under pressurize 1～2min condition, compression moulding, makes ceramic body, then base substrate is put into sintering oven sintering, makes the iron tailings far-infrared ceramic material containing rare earth.
Compared with prior art, the present invention is based on the effect of giving full play to effective constituent in iron tailings, improve ceramic far infrared transmission ability simultaneously, the present invention's design will be discarded iron tailings and be replaced traditional ceramics material composition, taking rare earth as additive, make a kind of iron tailings far-infrared ceramic containing rare earth.Effective oxide components in the discarded iron tailings of stupalith utilization of the present invention, taking rare earth as additive, utilize the gain and loss on rare earth element 4f layer electronics, play the effect of transmission, stored electrons and oxygen, after sinter molding, the far infrared rays of radiation-curable high emissivity, through FTIR test, is up to 0.92 (referring to embodiment 5) in the infrared emittance at 5～20 μ m places.
Brief description of the drawings
Fig. 1 is the displaing micro photo figure containing the iron tailings far-infrared ceramic material of rare earth that the embodiment of the present invention 4 makes.
Fig. 2 is the infrared emission figure containing the iron tailings far-infrared ceramic material of rare earth that the embodiment of the present invention 5 makes.
Embodiment
Further narrate the present invention below in conjunction with embodiment and accompanying drawing.
A kind of iron tailings far-infrared ceramic material containing rare earth of the present invention's design (is called for short stupalith, referring to Fig. 1-2), mainly taking iron tailings, clay, silicon-dioxide, calcium carbonate and aluminum oxide as main raw material, and taking rare earth as additive, mainly through ball milling, sieve, prepare burden, stir, be dried, after mixing, dry-pressing formed and sintering process, can make the iron tailings far-infrared ceramic material containing rare earth.
Specifically, a kind of iron tailings far-infrared ceramic material containing rare earth of the present invention's design, the weight percent that it is characterized in that this stupalith raw material consists of: iron tailings 35～75%, clay 1～7%, silicon-dioxide 6～25%, calcium carbonate 6～25%, aluminum oxide 2～7% and rare earth 1～9%, and each component sum is 100%; Described iron tailings main component weight consists of: SiO
230～35%, Fe
2o
320～25%, Al
2o
310～15%, TiO
210～15%, also have a small amount of CaO, Na
2o and MgO, each component sum is 100%; Described rare earth is any in rare earth lanthanum nitrate, europium nitrate, cerous nitrate or neodymium nitrate.
The technical scheme that the present invention solves described method and technology problem is: design a kind of preparation method of the iron tailings far-infrared ceramic material containing rare earth, this preparation method adopts weight percent composition and the following processing step of stupalith raw material of the present invention:
A, iron tailings is put into ball mill ball milling 30～120min, after ball milling, cross 350 mesh sieves, obtain iron tailings powder;
B, get the iron tailings powder obtaining in the steps A of weight 35～75%, add again weight and be 1～7% clay, 6～25% silicon-dioxide, 6～25% calcium carbonate, 2～7% aluminum oxide and 1～9% rare earth, and the water of above-mentioned raw materials weight 15～30%, mix and continue stir 30～90min;
C, by the mixture in step B under 100～120 DEG C of conditions, dry 1～2h;
D, by step C dry after batch mixing after mixing and ball milling 60～90min, sieve;
E, be 25～30MPa by the batch mixing in step D in forming pressure, under pressurize 1～2min condition, compression moulding, makes ceramic body, and base substrate is put into sintering oven sintering, finally makes the iron tailings far-infrared ceramic material containing rare earth.
Preparation method of the present invention is further characterized as: described sintering process is: the first stage: room temperature～950 DEG C, and temperature rise rate is 2～5 DEG C/min; Subordinate phase is: 950 DEG C, and insulation 30min; Phase III is: 950 DEG C～sintering temperature, temperature rise rate is 2～10 DEG C/min; Fourth stage is: sintering temperature, insulation 30～120min; Five-stage is: cool to room temperature with the furnace.
Above-mentioned preparation method's feature is also, the sintering temperature of described sintering process is 1100～1200 DEG C, to become porcelain completely.
Above-mentioned preparation method is characterised in that: in described step D, cross 120 mesh sieves.
Above-mentioned preparation method is characterised in that: in described step e, the pressure of compression moulding is 25～30MPa, and pressurize 1～2min.
Far-infrared ceramic of the present invention substitutes traditional far-infrared ceramic raw mineral materials with iron tailings, reduce and produced the dependence to high-quality mineral wealth, improved the utilising efficiency of resource, reduced the discharge of solid waste, the production cost that greatly reduces ceramic, is suitable for industrial applications; In iron tailings, contain more transition element iron simultaneously, can form sosoloid with alkaline-earth metal, accelerated particle mass transfer process, the densification degree of promotion ceramic post sintering, has reduced ceramic sintering temperature, is of value to energy-conserving and environment-protective.
The present invention does not address part and is applicable to prior art.
Below provide the specific embodiment of the invention, further describe this explanation.Specific embodiment does not form the restriction to the application's claim protection domain.
Embodiment 1
Design a kind of iron tailings far-infrared ceramic material containing rare earth, its weight percent composition and preparation method are as follows:
A, iron tailings is put into ball mill ball milling 30min, after ball milling, cross 350 mesh sieves, obtain iron tailings powder;
B, get the iron tailings powder that the steps A of weight 35% obtains, then add clay, 25% silicon-dioxide, 25% calcium carbonate, 7% aluminum oxide and 1% the lanthanum nitrate of weight 7%, and the water of above-mentioned raw materials weight 15%, mix and continue to stir 30min;
C, by the mixture in step B under 100 DEG C of conditions, dry 1h;
D, by step C dry after batch mixing after ball milling mixings 60min, mistake 120 mesh sieves;
E, be 30MPa by the batch mixing in step D in forming pressure, under the condition of pressurize 1.5min, compression moulding, makes ceramic body, then base substrate is put into sintering oven sintering, finally makes the iron tailings far-infrared ceramic material containing rare earth.
The present embodiment preparation method's sintering process is: the first stage: room temperature～950 DEG C, and temperature rise rate is 5 DEG C/min; Subordinate phase is: 950 DEG C, and insulation 30min; Phase III is: 950～1200 DEG C, temperature rise rate is 10 DEG C/min; Fourth stage is: 1200 DEG C, and insulation 30min; Five-stage is: cool to room temperature with the furnace.
After testing, the iron tailings far-infrared ceramic material containing rare earth that the present embodiment preparation method makes, is 0.85 at the infrared emittance at 5～20 μ m places.
Embodiment 2
Design a kind of iron tailings far-infrared ceramic material containing rare earth, its weight percent composition and preparation method are as follows:
A, iron tailings is put into ball mill ball milling 60min, after ball milling, cross 350 mesh sieves, obtain iron tailings powder;
B, get the iron tailings powder that the steps A of weight 45% obtains, then add clay, 20% silicon-dioxide, 20% calcium carbonate, 6% aluminum oxide and 3% the europium nitrate of weight 6%, the water of additional above-mentioned raw materials weight 20%, mixes and continues to stir 40min;
C, by the mixture in step B under 105 DEG C of conditions, dry 1h;
D, by step C dry after batch mixing, after ball milling mixings 70min, mistake 120 mesh sieves;
E, be 30MPa by the batch mixing in step D in forming pressure, under pressurize 1min condition, compression moulding, makes ceramic body, and then base substrate is put into sintering oven sintering, finally makes the iron tailings far-infrared ceramic material containing rare earth.
The present embodiment preparation method's sintering process is: the first stage: room temperature～950 DEG C, and temperature rise rate is 4 DEG C/min; Subordinate phase is: 950 DEG C, and insulation 30min; Subordinate phase is: 950～1180 DEG C, temperature rise rate is 8 DEG C/min; Phase III is: 1180 DEG C, and insulation 60min; Fourth stage is: cool to room temperature with the furnace.
After testing, what the present embodiment preparation method made contains Rare-earth Iron mine tailing far-infrared ceramic material, is 0.87 at the infrared emittance of 5～20 μ m.
Embodiment 3
Design a kind of iron tailings far-infrared ceramic material containing rare earth, its weight percent composition and preparation method are as follows:
A, the iron tailings in raw material is put into ball mill ball milling 90min, after ball milling, cross 350 mesh sieves, obtain iron tailings powder;
B, get the iron tailings powder that the steps A of weight 55% obtains, then add clay, 15% silicon-dioxide, 15% calcium carbonate, 5% aluminum oxide and 5% the neodymium nitrate of weight 5%, and the water of above-mentioned raw materials weight 25%, mix and continue to stir 60min;
C, the mixture obtaining in step B is dried to 1h under 110 DEG C of conditions;
D, by step C dry after batch mixing after ball milling mixings 80min, mistake 120 mesh sieves;
E, be 28MPa by the batch mixing in step D in forming pressure, under pressurize 1min condition, compression moulding, makes ceramic body, and then base substrate is put into sintering oven sintering, finally makes the iron tailings far-infrared ceramic material containing rare earth.
The present embodiment preparation method's sintering process is: the first stage: room temperature～950 DEG C, and temperature rise rate is 3 DEG C/min; Phase III is: 950 DEG C, and insulation 30min; Phase III is: 950～1160 DEG C, temperature rise rate is 6 DEG C/min; Fourth stage is: 1160 DEG C, and insulation 90min; Five-stage is: cool to room temperature with the furnace.
After testing, what the present embodiment made contains Rare-earth Iron mine tailing far-infrared ceramic material, is 0.89 at the infrared emittance at 5～20 μ m places.
Embodiment 4
Design a kind of iron tailings far-infrared ceramic material containing rare earth, its weight percent composition and preparation method are as follows:
A, the iron tailings in raw material is put into ball mill ball milling 90min, after ball milling, cross 350 mesh sieves, obtain iron tailings powder;
B, get the iron tailings powder obtaining in the steps A of weight 55%, add again clay, 15% silicon-dioxide, 15% calcium carbonate, 4% aluminum oxide and 7% the cerous nitrate of weight 4%, the water of additional above-mentioned raw materials weight 25%, mix and continue stir 60min;
C, by the mixture obtaining in step B under 110 DEG C of conditions, dry 1h;
D, by step C dry after batch mixing, after ball milling mixings 80min, mistake 120 mesh sieves;
E, be 28MPa by the batch mixing in step D in forming pressure, under pressurize 1.5min condition, compression moulding is ceramic body, then base substrate is put into sintering oven sintering, finally makes the iron tailings far-infrared ceramic material containing rare earth.
The present embodiment preparation method's sintering process is: the first stage: room temperature～950 DEG C, and temperature rise rate is 2 DEG C/min; Subordinate phase is: 950 DEG C, and insulation 30min; Phase III is: 950～1150 DEG C, temperature rise rate is 2 DEG C/min; Fourth stage is: 1150 DEG C, and insulation 120min; Five-stage is: cool to room temperature with the furnace.
After testing, the iron tailings far-infrared ceramic material that the present embodiment makes, is 0.90 at the infrared emittance at 5～20 μ m places.
Embodiment 5
Design a kind of iron tailings far-infrared ceramic material containing rare earth, its weight percent composition and preparation method are as follows:
A, the iron tailings in raw material is put into ball mill ball milling 100min, after ball milling, cross 350 mesh sieves, obtain iron tailings powder;
B, get the iron tailings powder obtaining in the steps A of weight 75%, then add clay, 7% silicon-dioxide, 7% calcium carbonate, 2% aluminum oxide and 7% the cerous nitrate of weight 2%, the water of additional above-mentioned raw materials weight 30%, mixes and continues to stir 90min;
C, by the mixture in step B under 120 DEG C of conditions, dry 2h;
D, by step C dry after batch mixing, after ball milling mixings 90min, mistake 120 mesh sieves;
E, be 25MPa by the batch mixing in step D in forming pressure, under pressurize 2min condition, compression moulding, makes ceramic body, and base substrate is put into sintering oven sintering, finally makes the iron tailings far-infrared ceramic material containing rare earth.
The present embodiment preparation method's sintering process is: the first stage: room temperature～950 DEG C, and temperature rise rate is 3 DEG C/min; Subordinate phase is: 950 DEG C, and insulation 30min; Phase III is: 950～1130 DEG C, temperature rise rate is 4 DEG C/min; Fourth stage is: 1130 DEG C, and insulation 120min; Five-stage is: cool to room temperature with the furnace.
What the present embodiment made contains Rare-earth Iron mine tailing far-infrared ceramic material, is 0.92 at the infrared emittance at 5～20 μ m places.
Embodiment 6
Design a kind of iron tailings far-infrared ceramic material containing rare earth, its weight percent composition and preparation method are as follows:
A, the iron tailings in raw material is put into ball mill ball milling 120min, after ball milling, cross 350 mesh sieves, obtain iron tailings powder;
B, get the iron tailings powder obtaining in the steps A of weight 75%, then add clay, 6% silicon-dioxide, 6% calcium carbonate, 3% aluminum oxide and 9% the cerous nitrate of weight 1%, and the water of above-mentioned raw materials weight 30%, mix and continue to stir 90min;
C, by the mixture in step B under 120 DEG C of conditions, dry 2h;
D, by step C dry after batch mixing after ball milling mixings 90min, mistake 120 mesh sieves;
E, be 25MPa by the batch mixing in step D in forming pressure, under pressurize 2min condition, compression moulding, makes ceramic body, then base substrate is put into sintering oven sintering, finally makes the iron tailings far-infrared ceramic material containing rare earth.
The present embodiment preparation method's sintering process is: the first stage: room temperature～950 DEG C, and temperature rise rate is 3 DEG C/min; Subordinate phase is: 950 DEG C, and insulation 30min; Phase III is: 950～1100 DEG C, temperature rise rate is 5 DEG C/min; Fourth stage is: 1100 DEG C, and insulation 120min; Five-stage is: cool to room temperature with the furnace.
After testing, what the present embodiment preparation method made contains Rare-earth Iron mine tailing far-infrared ceramic material, is 0.91 at the infrared emittance at 5～20 μ m places.
Claims (6)
1. the iron tailings far-infrared ceramic material containing rare earth, the raw material weight per-cent that it is characterized in that this stupalith consists of: iron tailings 35～75%, clay 1～7%, silicon-dioxide 6～25%, calcium carbonate 6～25%, aluminum oxide 2～7% and rare earth 1～9%, and each component sum is 100%; Described iron tailings main component weight consists of: SiO
230～35%, Fe
2o
320～25%, Al
2o
310～15%, TiO
210～15%, also have a small amount of CaO, Na
2o and MgO, each component sum is 100%; Described rare earth is any in lanthanum nitrate, europium nitrate, cerous nitrate or neodymium nitrate.
2. containing the preparation method of the iron tailings far-infrared ceramic material of rare earth, this preparation method adopts weight percent composition and the following processing step of stupalith raw material described in claim 1:
A, iron tailings is put into ball mill ball milling 30～120min, after ball milling, cross 350 mesh sieves;
B, get the iron tailings powder obtaining in weight 35～75% steps A, add again clay, 6～25% silicon-dioxide, 6～25% calcium carbonate, 2～7% aluminum oxide and 1～9% the rare earth of weight 1～7%, and the water of above-mentioned raw materials weight 15～30%, mix and continue stir 30～90min;
C, by the mixture in step B under 100～120 DEG C of conditions, dry 1～2h;
D, by the batch mixing of drying in step C after mixing and ball milling 60～90min, sieve;
E, by the batch mixing compression moulding in step D, make ceramic body, then base substrate put into sintering oven sintering, make the iron tailings far-infrared ceramic material containing rare earth.
3. the preparation method who contains according to claim 2 the iron tailings far-infrared ceramic material of rare earth, is characterized in that: in described step D, cross 120 mesh sieves.
4. the preparation method who contains according to claim 2 the iron tailings far-infrared ceramic material of rare earth, is characterized in that: in step e, the pressure of compression moulding is 25～30MPa, and pressurize 1～2min.
5. the preparation method who contains according to claim 2 the iron tailings far-infrared ceramic of rare earth, is characterized in that its sintering process is: the first stage: room temperature～950 DEG C, and temperature rise rate is 2～5 DEG C/min; Subordinate phase is: 950 DEG C of insulation 30min; Phase III is: 950 DEG C～sintering temperature, temperature rise rate is 2～10 DEG C/min; Fourth stage is: sintering temperature, insulation 30～120min; Five-stage is: cool to room temperature with the furnace.
6. according to the preparation method who contains the iron tailings far-infrared ceramic of rare earth described in claim 2 or 5, the sintering temperature that it is characterized in that described sintering process is 1100～1200 DEG C, to become porcelain completely.
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| CN105063806A (en) * | 2015-07-30 | 2015-11-18 | 浙江大学 | Preparation method of near infrared luminous calcium titanate nano fiber |
| CN106673632A (en) * | 2016-12-19 | 2017-05-17 | 河北工业大学 | Functional ceramic for treating water special for cosmetics |
| CN110128105A (en) * | 2019-04-04 | 2019-08-16 | 河北工业大学 | Iron tailings based black solar energy heat absorbing ceramics and preparation method thereof |
| CN110194653A (en) * | 2019-04-04 | 2019-09-03 | 河北工业大学 | A kind of iron tailings heat absorption ceramic material and preparation method |
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| CN105063806A (en) * | 2015-07-30 | 2015-11-18 | 浙江大学 | Preparation method of near infrared luminous calcium titanate nano fiber |
| CN106673632A (en) * | 2016-12-19 | 2017-05-17 | 河北工业大学 | Functional ceramic for treating water special for cosmetics |
| CN106673632B (en) * | 2016-12-19 | 2019-12-27 | 河北工业大学 | Special water treatment functional ceramic for cosmetics |
| CN110128105A (en) * | 2019-04-04 | 2019-08-16 | 河北工业大学 | Iron tailings based black solar energy heat absorbing ceramics and preparation method thereof |
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| CN110194653B (en) * | 2019-04-04 | 2022-03-15 | 河北工业大学 | Iron tailing heat absorption functional ceramic material and preparation method thereof |
| CN112979336A (en) * | 2019-12-15 | 2021-06-18 | 西南科技大学 | Method for preparing foamed ceramic thermal insulation material by using fluorocarbon cerium type rare earth tailings with low energy consumption and product |
| CN113461331A (en) * | 2021-07-13 | 2021-10-01 | 佛山欧神诺陶瓷有限公司 | Ceramic glaze material with far infrared radiation function and ceramic rock plate |
| CN115228451A (en) * | 2022-07-27 | 2022-10-25 | 赣州步莱铽新资源有限公司 | Porous ceramic material, preparation method thereof and application thereof in fluoride ion removal |
| CN115228451B (en) * | 2022-07-27 | 2023-08-15 | 赣州步莱铽新资源有限公司 | Porous ceramic material, preparation method thereof and application thereof in fluoride ion removal |
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