CN104692780B - A kind of microwave anaerobic heating material and preparation method thereof - Google Patents
A kind of microwave anaerobic heating material and preparation method thereof Download PDFInfo
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 94
- 239000000463 material Substances 0.000 title claims abstract description 92
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000011863 silicon-based powder Substances 0.000 claims abstract description 21
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 19
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 19
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910021421 monocrystalline silicon Inorganic materials 0.000 claims abstract description 18
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 13
- -1 alkali metal salt Chemical class 0.000 claims abstract description 13
- 230000005855 radiation Effects 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 239000010703 silicon Substances 0.000 claims description 10
- 238000010792 warming Methods 0.000 claims description 9
- 230000018044 dehydration Effects 0.000 claims description 5
- 238000006297 dehydration reaction Methods 0.000 claims description 5
- 229910003002 lithium salt Inorganic materials 0.000 claims description 2
- 159000000002 lithium salts Chemical group 0.000 claims description 2
- 229910021332 silicide Inorganic materials 0.000 claims description 2
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000446 fuel Substances 0.000 abstract description 4
- 230000036284 oxygen consumption Effects 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 229910000617 Mangalloy Inorganic materials 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 3
- 230000005672 electromagnetic field Effects 0.000 description 3
- 235000013312 flour Nutrition 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 3
- 229910052808 lithium carbonate Inorganic materials 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000002551 biofuel Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- OYEHPCDNVJXUIW-FTXFMUIASA-N 239Pu Chemical compound [239Pu] OYEHPCDNVJXUIW-FTXFMUIASA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 239000003225 biodiesel Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003758 nuclear fuel Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003027 oil sand Substances 0.000 description 1
- 239000004058 oil shale Substances 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- ZSLUVFAKFWKJRC-UHFFFAOYSA-N thorium Chemical compound [Th] ZSLUVFAKFWKJRC-UHFFFAOYSA-N 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 1
- JFALSRSLKYAFGM-FTXFMUIASA-N uranium-233 Chemical compound [233U] JFALSRSLKYAFGM-FTXFMUIASA-N 0.000 description 1
- JFALSRSLKYAFGM-OIOBTWANSA-N uranium-235 Chemical compound [235U] JFALSRSLKYAFGM-OIOBTWANSA-N 0.000 description 1
Abstract
The invention discloses a kind of microwave anaerobic heating material and preparation method thereof, microwave anaerobic heating material, its raw material components includes：25 35 parts of monocrystalline silicon, 11 19 parts of waterglass, 22 32 parts of silicon powder, 46 parts of alkali metal salt, 28 38 parts of alundum (Al2O3), the number are mass fraction.Microwave anaerobic heating material of the present invention, there is the characteristics such as intensity is big, wearability is good, shrinkage factor is small, rate of water absorption is adjustable, plasticity is strong, as needed can be prepared as heating material variously-shaped；Under the conditions of microwave radiation, it can be rapidly heated, up to more than 1600 DEG C, more than 1600 DEG C of burning timeliness is more than 3 months temperature；Suitable for being heated to various materials, and can be seamless applying with heating object, heat release uniformly, without oxygen consumption, zero-emission；Taken when ignition temperature does not reach, recycling can be activated, considerably reduce fuel cost.
Description
Technical field
The invention belongs to Material Field, and in particular to a kind of microwave anaerobic heating material and preparation method thereof.
Background technology
Heating material is widely used in industrial and agricultural production and people's lives, is by chemically or physically reacting as thermal source
The material to give off energy, the material for being used for heating at present include fossil fuel (such as oil, coal, oil shale, methane, oil-sand, day
Right gas etc.), bio-fuel (such as ethanol, biodiesel), nuclear fuel (such as uranium 235, uranium 233, uranium 238, plutonium 239, thorium 232)
And converting electrical energy into the heating wire of heat energy etc., fossil fuel not only consumes oxygen as the non-renewable energy, during burning, and
And pernicious gas, pollution environment can be discharged；Although bio-fuel is a kind of emerging recyclable fuel, but preparation technology be present and answer
It is miscellaneous, cost is high, burning when need consume oxygen, energy release it is limited the defects of；Although heating wire is a kind of anaerobic heating material,
But the defects of power consumption is big, the release of short life, energy is limited be present using electric-heating-wire-heating.
At present, microwave energy is more and more applied to heating art, such as：Food, papermaking, timber, sintering etc..
The microwave of actual heating application is typically the electromagnetic wave that frequency is 915MHz and 2450MHz.The simple principle of microwave heating is it
The polarization of alternating electromagnetic field makes the free charge rearrangement of material internal and the rotation of tune repeatedly of dipole, strong so as to produce
Big vibration and friction, the energy of alternating electromagnetic field is converted into the heat energy in medium in this microprocess, causes medium temperature
Degree rise, therefore microwave heating is dielectric material own loss energy of electromagnetic field and generated heat.Microwave heating is markedly different from routine
Heating, has the following advantages that：(1) belong to interior heating, there is not contact；(2) firing rate is fast；(3) efficiency of heating surface is high, can show
Write energy-conservation；(4) optionally heated material；(5) thermal inertia is small；(6) there is catalytic action to chemical reaction.However, material
Absorb that the ability of microwave energy is relevant with the complex dielectric permittivity of the material, i.e., fissipation factor is bigger, it is stronger to absorb the ability of microwave, because
The advantages of this above-mentioned microwave heating, is just for the strong absorbing material of specific microwave, therefore microwave heating also has it significantly to limit to
Property and deficiency：(1) selectivity of microwave heating causes it to directly heat the metal material of bulk, because metallic reflection is micro-
Ripple；Microwave also is difficult to heat many insulating materials, such as：Glass, plastics are (such as：Polyethylene, polystyrene etc.), quartz and portion
Divide ceramic material, because these materials are " transparent " to microwave, they do not absorb or less absorption microwave energy, therefore
Can be very low for the efficiency of heating surface of these material microwaves.(2) uniformity and bad of microwave heating in many cases, such as：It is right
Be difficult to penetrate in some larger block materials microwaves, the energy entrained by microwave also by with the distance for going deep into dielectric surface,
Exponentially form decays.
To sum up, a kind of high life, high efficiency, operation at high temperature, adaptable inexpensive anaerobic heating material are developed
It is extremely urgent.
The content of the invention
To overcome drawbacks described above existing for heating material in the prior art, the present invention provides a kind of microwave anaerobic heating material
And preparation method thereof, be a kind of anaerobic heating material, have low zero-emission, efficiency high, cost, strong adaptability, have a wide range of application,
Homogeneous heating, it the characteristic such as can be recycled.
In order to solve the above technical problems, the technical solution adopted in the present invention is as follows：
A kind of microwave anaerobic heating material, its raw material components include：Monocrystalline silicon 25-35 parts, waterglass 11-19 parts, silicon are micro-
Powder 22-32 parts, alkali metal salt 4-6 parts, alundum (Al2O3) 28-38 parts, the number are mass fraction.
The application microwave anaerobic heating material, with intensity is big, wearability is good, shrinkage factor is small, rate of water absorption is adjustable, plastic
Property the characteristic such as strong, heating material can be prepared as needed variously-shaped, under the conditions of microwave radiation, can be rapidly heated, temperature
Degree up to more than 1600 DEG C, more than 1600 DEG C of burning timeliness more than 3 months, suitable for various materials, variously-shaped add
Heat, and can be seamless applying with heating object, heat release uniformly, without oxygen consumption, zero-emission, taken, can be swashed when ignition temperature does not reach
It is living to recycle.
In order to be further ensured that the performances such as the intensity of heating material, wearability, while further improve adding for heating material
The thermal efficiency, it is preferable that the mass content of silicon is more than 99.9% in monocrystalline silicon.
In order to facilitate preparation, while further ensure that the heating properties of heating material, it is preferable that the concentration of waterglass is 20-
30°Be'。
In order to further improve the heating properties of heating material, the mass content of silicide is more than 70% in silicon powder.
In order to further improve the efficiency of heating surface of heating material, extend heating timeliness, it is preferable that alkali metal salt is lithium salts.
In order to be further ensured that the performances such as the intensity of heating material, wearability, while further improve adding for heating material
The thermal efficiency, it is preferable that the purity of alundum (Al2O3) is more than 60wt%.
In order to which the performance of heating material is reached into optimal, it is preferable that microwave anaerobic heating material, its raw material components include：It is single
30 parts of crystal silicon, 15 parts of waterglass, 27 parts of silicon powder, 5 parts of alkali metal salt, 33 parts of alundum (Al2O3), the number are mass fraction.
In order to be further ensured that the performance of heating material, it is preferable that the preparation method of above-mentioned microwave anaerobic heating material, including
Following steps connected in order：
A, monocrystalline silicon, waterglass, silicon powder, alkali metal salt and alundum (Al2O3) are mixed, dehydration；
B, under the conditions of microwave radiation, step A resulting materials are warming up to 250-350 DEG C in 1 hour；
C, under the conditions of microwave radiation, step B resulting materials is continuously heating to 1150-1250 DEG C, are incubated 3.5-4.5h,
Then in 1.5-2.5h, room temperature is cooled to, produces microwave anaerobic heating material.
In above-mentioned steps C, when material is warming up to 1150-1250 DEG C, material is high temperature fused state.
In above-mentioned preparation method, monocrystalline silicon, silicon powder, alkali metal salt and alundum (Al2O3) are both preferably powdered, water glass
Glass is solution, is sufficiently mixed each material uniformly before dehydration, after dehydration, mixture high-temperature digestion, is arranged again under microwave condition
Sequence, form new crystal phase structure, so as to obtain new material, applicant it has been investigated that, utilize the heating obtained by the above method
Material has optimal performance.
The application method of microwave anaerobic heating material is：Act on " microwave anaerobic heating material " first with microwave, then
Go to heat material to be heated using " microwave anaerobic heating material " as heater (thermal source) again, there is no material to the material with heating
The requirement of matter, it is applied widely, it is heated at high temperature for anaerobic.
The NM technology of the present invention is with reference to prior art.
Microwave anaerobic heating material of the present invention, with intensity is big, wearability is good, shrinkage factor is small, rate of water absorption is adjustable, plastic
Property the characteristic such as strong, heating material can be prepared as needed variously-shaped；Under the conditions of microwave radiation, it can be rapidly heated, temperature
Up to more than 1600 DEG C, more than 1600 DEG C of burning timeliness is more than 3 months degree；Suitable for being heated to various materials, and can be with
Heating object is seamless applying, heat release uniformly, without oxygen consumption, zero-emission；Taken when ignition temperature does not reach, can activate circulation makes
With, considerably reduce fuel cost；Energy-saving and environmental protection, more than 30% is saved compared with traditional organic-fuel, with heating wire phase
Than energy-conservation more than 50%；The preparation method of microwave anaerobic heating material of the present invention is simple, easily implementation, cost is low.
Embodiment
For a better understanding of the present invention, with reference to the embodiment content that the present invention is furture elucidated, but the present invention
Content is not limited solely to the following examples.
Embodiment 1
The raw material components of microwave anaerobic heating material include：25 parts of monocrystalline silicon, water glass solution (concentration is 21.9 ° of Be')
11 parts, 22 parts of silicon powder, 4 parts of lithium carbonate, 28 parts of alundum (Al2O3), the number is mass fraction.
Above-mentioned monocrystalline silicon is the monocrystalline silica flour purchased from Pei County Jin Wengui product Materials Co., Ltd, and the mass content of silicon is
99.99%；Water glass solution is purchased from Qingdao Chao Xu Trade Co., Ltd.s；Silicon powder is limited purchased from Zaozhuang City's holy high-tech silicon industry of gold
The melting silicon powder RG-400 mesh of company；Alundum (Al2O3) is pure to analyze, and Science and Technology Ltd., carbonic acid are tieed up purchased from Beijing Kang Puhui
Lithium is purchased from Nanjing Si Taibao trade Co., Ltds.
The preparation method of above-mentioned microwave anaerobic heating material, including following steps connected in order：
A, monocrystalline silicon, waterglass, silicon powder, alkali metal salt and alundum (Al2O3) mixed, be dehydrated, extruding；
B, under the conditions of microwave radiation, step A resulting materials are warming up to 250 DEG C in 1 hour, further dehydration, and evaporating
Organic impurities；
C, under the conditions of microwave radiation, step B resulting materials is continuously heating to 1150 DEG C, 3.5h is incubated, makes material portion
Divide carbonization, melt inorganic matter, new molecular sequences are formed under microwave condition, then in 1.5h, are cooled to room temperature, are produced micro-
Ripple anaerobic heating material.
Above-mentioned gained microwave anaerobic heating material intensity is 15MPa, and wearability is more than 100 times of manganese steel, and shrinkage factor is
0.3%, water absorption rate 7%；Per the heat of 100g microwave anaerobics heating material release equivalent to the heat that 3kg coals discharge；
2450MHz electromagnetic wave can be warming up to more than 1600 DEG C for lower 30 seconds, and more than 1600 DEG C of heating timeliness is 4 months.
Embodiment 2
The raw material components of microwave anaerobic heating material include：35 parts of monocrystalline silicon, water glass solution (concentration is 28.7 ° of Be')
19 parts, 32 parts of silicon powder, 6 parts of lithium carbonate, 38 parts of alundum (Al2O3), the number is mass fraction.
Above-mentioned monocrystalline silicon is the monocrystalline silica flour purchased from Pei County Jin Wengui product Materials Co., Ltd, and the mass content of silicon is
99.99%；Water glass solution is purchased from Qingdao Chao Xu Trade Co., Ltd.s；Silicon powder is limited purchased from Zaozhuang City's holy high-tech silicon industry of gold
The melting silicon powder RG-400 mesh of company；Alundum (Al2O3) is pure to analyze, and Science and Technology Ltd., carbonic acid are tieed up purchased from Beijing Kang Puhui
Lithium is purchased from Nanjing Si Taibao trade Co., Ltds.
The preparation method of above-mentioned microwave anaerobic heating material, including following steps connected in order：
A, monocrystalline silicon, waterglass, silicon powder, alkali metal salt and alundum (Al2O3) mixed, be dehydrated, extruding；
B, under the conditions of microwave radiation, step A resulting materials are warming up to 350 DEG C in 1 hour；
C, under the conditions of microwave radiation, step B resulting materials is continuously heating to 1250 DEG C, are incubated 4.5h, Ran Hou
In 2.5h, room temperature is cooled to, produces microwave anaerobic heating material.
Above-mentioned gained microwave anaerobic heating material intensity is 12MPa, and wearability is more than 100 times of manganese steel, and shrinkage factor is
0.3%, water absorption rate 10%；Per the heat of 100g microwave anaerobics heating material release equivalent to the heat that 3.1kg coals discharge；
2450MHz electromagnetic wave can be warming up to more than 1600 DEG C for lower 30 seconds, and more than 1600 DEG C of heating timeliness is 5 months.
Embodiment 3
Microwave anaerobic heating material, its raw material components include：30 parts of monocrystalline silicon, water glass solution (concentration is 24.2 ° of Be')
15 parts, 27 parts of silicon powder, 5 parts of lithium carbonate, 33 parts of alundum (Al2O3), the number is mass fraction.
Above-mentioned monocrystalline silicon is the monocrystalline silica flour purchased from Pei County Jin Wengui product Materials Co., Ltd, and the mass content of silicon is
99.99%；Water glass solution is purchased from Qingdao Chao Xu Trade Co., Ltd.s；Silicon powder is limited purchased from Zaozhuang City's holy high-tech silicon industry of gold
The melting silicon powder RG-400 mesh of company；Alundum (Al2O3) is pure to analyze, and Science and Technology Ltd., carbonic acid are tieed up purchased from Beijing Kang Puhui
Lithium is purchased from Nanjing Si Taibao trade Co., Ltds.
A, monocrystalline silicon, waterglass, silicon powder, alkali metal salt and alundum (Al2O3) mixed, be dehydrated, extruding；
B, under the conditions of microwave radiation, step A resulting materials are warming up to 300 DEG C in 1 hour；
C, under the conditions of microwave radiation, step B resulting materials is continuously heating to 1200 DEG C, are incubated 4h, then in 2h,
Room temperature is cooled to, produces microwave anaerobic heating material.
Above-mentioned gained microwave anaerobic heating material intensity is 11MPa, and wearability is more than 100 times of manganese steel, and shrinkage factor is
0.3%, water absorption rate 300%；Per the heat of 100g microwave anaerobics heating material release equivalent to the heat that 3.5kg coals discharge；
More than 1600 DEG C can be warming up within 30 seconds under 2450MHz electromagnetic wave, and more than 1600 DEG C of heating timeliness is 7 months.
Microwave anaerobic heating material obtained by the various embodiments described above is suitable to various materials (including various isolation materials), various
The material heating of shape, and heat release is uniform.
Claims (6)
- A kind of 1. microwave anaerobic heating material, it is characterised in that：Its raw material components includes：Monocrystalline silicon 25-35 parts, waterglass 11- 19 parts, silicon powder 22-32 parts, alkali metal salt 4-6 parts, alundum (Al2O3) 28-38 parts, the number is mass fraction, alkali metal Salt is lithium salts；The preparation method of above-mentioned microwave anaerobic heating material, including following steps connected in order：A, monocrystalline silicon, waterglass, silicon powder, alkali metal salt and alundum (Al2O3) are mixed, dehydration；B, under the conditions of microwave radiation, step A resulting materials are warming up to 250-350 DEG C in 1 hour；C, under the conditions of microwave radiation, step B resulting materials is continuously heating to 1150-1250 DEG C, are incubated 3.5-4.5h, then In 1.5-2.5h, room temperature is cooled to, produces microwave anaerobic heating material.
- 2. microwave anaerobic heating material as claimed in claim 1, it is characterised in that：The mass content of silicon is more than in monocrystalline silicon 99.9%.
- 3. microwave anaerobic heating material as claimed in claim 1, it is characterised in that：The concentration of waterglass is 20-30 ° of Be'.
- 4. microwave anaerobic heating material as claimed in claim 1, it is characterised in that：The mass content of silicide is big in silicon powder In 70%.
- 5. microwave anaerobic heating material as claimed in claim 1, it is characterised in that：The purity of alundum (Al2O3) is more than 60wt%.
- 6. the microwave anaerobic heating material as described in claim 1-5 any one, it is characterised in that：Its raw material components includes： 30 parts of monocrystalline silicon, 15 parts of waterglass, 27 parts of silicon powder, 5 parts of alkali metal salt, 33 parts of alundum (Al2O3), the number are mass parts Number.
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| CN110203993B (en) * | 2019-06-12 | 2022-02-08 | 江苏首标环保科技有限公司 | Composite filter element capable of being repeatedly used under microwave condition, preparation method and activation method thereof |
| CN110863161B (en) * | 2019-10-24 | 2021-08-06 | 安徽枫慧金属股份有限公司 | Aging treatment process for extrusion casting aluminum alloy |
| CN111422936B (en) * | 2020-04-08 | 2022-09-30 | 南京丰禾新材料科技有限公司 | Urine treatment method and recyclable urine independent treatment system |
| CN112774626B (en) * | 2020-12-21 | 2023-08-22 | 江苏首标环保科技有限公司 | Ceramic filter particle capable of being regenerated by microwaves, preparation method thereof and regeneration method thereof |
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| CN102875134B (en) * | 2012-10-31 | 2014-10-01 | 昆明理工大学 | Porous heat storing microwave absorbing material for microwave oven |
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