CN108339324A - A kind of modified preparation method for carrying silver-colored floating bead base ceramic filter material - Google Patents
A kind of modified preparation method for carrying silver-colored floating bead base ceramic filter material Download PDFInfo
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- CN108339324A CN108339324A CN201810391207.4A CN201810391207A CN108339324A CN 108339324 A CN108339324 A CN 108339324A CN 201810391207 A CN201810391207 A CN 201810391207A CN 108339324 A CN108339324 A CN 108339324A
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- floating bead
- ceramic filter
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- 239000000463 material Substances 0.000 title claims abstract description 84
- 239000011324 bead Substances 0.000 title claims abstract description 78
- 238000007667 floating Methods 0.000 title claims abstract description 78
- 239000000919 ceramic Substances 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 38
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 238000002156 mixing Methods 0.000 claims abstract description 27
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims abstract description 24
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000000498 ball milling Methods 0.000 claims abstract description 18
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 18
- 239000010703 silicon Substances 0.000 claims abstract description 18
- 239000006185 dispersion Substances 0.000 claims abstract description 17
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910001961 silver nitrate Inorganic materials 0.000 claims abstract description 12
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 11
- 239000010440 gypsum Substances 0.000 claims abstract description 11
- 239000002699 waste material Substances 0.000 claims abstract description 11
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000004793 Polystyrene Substances 0.000 claims abstract description 8
- 229920002223 polystyrene Polymers 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 239000002245 particle Substances 0.000 claims description 22
- 238000003756 stirring Methods 0.000 claims description 22
- 239000008367 deionised water Substances 0.000 claims description 20
- 229910021641 deionized water Inorganic materials 0.000 claims description 20
- 238000007599 discharging Methods 0.000 claims description 17
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 16
- 230000032683 aging Effects 0.000 claims description 16
- 239000011268 mixed slurry Substances 0.000 claims description 12
- 239000000706 filtrate Substances 0.000 claims description 11
- 238000007873 sieving Methods 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 9
- 238000005245 sintering Methods 0.000 claims description 9
- 239000002202 Polyethylene glycol Substances 0.000 claims description 8
- 238000007654 immersion Methods 0.000 claims description 8
- 229920001223 polyethylene glycol Polymers 0.000 claims description 8
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 7
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 7
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 235000019441 ethanol Nutrition 0.000 claims description 6
- 125000005909 ethyl alcohol group Chemical group 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- YCSMVPSDJIOXGN-UHFFFAOYSA-N CCCCCCCCCCCC[Na] Chemical compound CCCCCCCCCCCC[Na] YCSMVPSDJIOXGN-UHFFFAOYSA-N 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 2
- 235000011152 sodium sulphate Nutrition 0.000 claims description 2
- 239000003643 water by type Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 10
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 abstract description 5
- 230000001954 sterilising effect Effects 0.000 abstract description 4
- 230000003115 biocidal effect Effects 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 abstract description 3
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 3
- 108091005804 Peptidases Proteins 0.000 abstract description 2
- 239000004365 Protease Substances 0.000 abstract description 2
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 abstract description 2
- 239000011230 binding agent Substances 0.000 abstract description 2
- 210000000170 cell membrane Anatomy 0.000 abstract description 2
- 210000002421 cell wall Anatomy 0.000 abstract description 2
- 230000009977 dual effect Effects 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract description 2
- 125000003396 thiol group Chemical class [H]S* 0.000 abstract description 2
- 238000000280 densification Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 description 5
- 239000010865 sewage Substances 0.000 description 5
- 239000012295 chemical reaction liquid Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000008188 pellet Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 238000011953 bioanalysis Methods 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 240000007049 Juglans regia Species 0.000 description 1
- 235000009496 Juglans regia Nutrition 0.000 description 1
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 235000020234 walnut Nutrition 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/02—Loose filtering material, e.g. loose fibres
- B01D39/06—Inorganic material, e.g. asbestos fibres, glass beads or fibres
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/1305—Organic additives
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/131—Inorganic additives
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/135—Combustion residues, e.g. fly ash, incineration waste
- C04B33/1352—Fuel ashes, e.g. fly ash
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/6303—Inorganic additives
- C04B35/6316—Binders based on silicon compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/009—Porous or hollow ceramic granular materials, e.g. microballoons
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/063—Preparing or treating the raw materials individually or as batches
- C04B38/0635—Compounding ingredients
- C04B38/0645—Burnable, meltable, sublimable materials
- C04B38/067—Macromolecular compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0442—Antimicrobial, antibacterial, antifungal additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1208—Porosity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1291—Other parameters
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/443—Nitrates or nitrites
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/448—Sulphates or sulphites
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- C—CHEMISTRY; METALLURGY
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Filtering Materials (AREA)
Abstract
The present invention relates to water-purifying material preparing technical fields, and in particular to a kind of modified preparation method for carrying silver-colored floating bead base ceramic filter material.The present invention is using floating bead powder as base material, polystyrene is as pore creating material, from preparing silicon collosol as binder, and it is aided with amber powder and absolute ethyl alcohol etc. and is prepared and modified carry silver-colored floating bead base ceramic filter material, floating bead ball milling is blended with waste gypsum first, silver nitrate solution and self-control dispersion liquid is recycled to carry out floating bead dual modified, silver ion in silver nitrate attracts the mercapto that negative electrical charge is carried in protease, effectively pierce through cell wall and cell membrane appearance, improve the antibiotic property of ceramic filter material, silver ion plays wear-resisting effect jointly in sterilization process with base material, continue ethyl orthosilicate, the mixings such as absolute ethyl alcohol are obtained by the reaction from preparing silicon collosol, densification is formed in substrate surface, firm network structure, wear-resisting effect is played to base material, the wearability for being conducive to ceramic filter material is improved, it is with a wide range of applications.
Description
Technical field
The present invention relates to water-purifying material preparing technical fields, and in particular to a kind of modified system for carrying silver-colored floating bead base ceramic filter material
Preparation Method.
Background technology
With the fast development of China's economic, the quickening of industrialization and urbanization process, environmental pollution and shortage of resources are asked
Topic increasingly shows.Containing various pollutants are harmful to soil and human body in sewage, people are to sewage using at various methods
Reason.Physical, chemical method and bioanalysis are common modes, although chemical method can reduce the pollution in sewage
Object, but chemical agent can cause secondary pollution, the occupation area of equipment of bioanalysis is big, and processing speed is slow, this all give people with
Puzzlement is carried out.
Filtering is one of common physical treatment method in water supply and sewage disposal, thus the selection of filter medium just becomes
Using the key of the technical method.China's filter material for water treatment mostly uses greatly rubble, clinker, ordinary ceramsite, fiberglass or plastics
Carry out the filtering of sewage, purified treatment, but above-mentioned filtrate it is different degrees of there are pore pluggings, increase working resistance, have
Porosity it is low, clean-up effect is poor, and what is had is easy to aging, and drawbacks described above limits the application of water treatment filter material, therefore solves above-mentioned to ask
Topic just seems very necessary.
Ceramic fibre is a kind of fibrous light refractory material, has that light-weight, high temperature resistant, thermal stability be good, thermal conductivity
The advantages that low, specific heat is small and mechanical resistant shakes, thus be obtained for extensively in the industries such as machinery, metallurgy, chemical industry, oil, electronics
Application.Ceramic filter material belongs to a kind of novel filtering material, relative to traditional quartz sand, walnut shell, without tobacco powder etc., tool
There is porosity height, excellent adsorption, high mechanical strength, wear-resistant, stable chemical performance, length filter cycle, resistance to backwash, be not easy to make
The advantages that at secondary pollution.Therefore, ceramic filter material has become the filtrate of new generation of water treatment field, and demand increases year by year
Add.
But existing ceramic filter material is mostly to solve based on the effect of physical filtering, and not only not wear-resisting but also not impact resistant cannot support
Anti- high-speed flow washes away, and can not resist the erosion of slag, and from the critical function for being not expressly mentioned sterilization algae removal.
Therefore, there is an urgent need for develop a kind of ceramic filter material that can be solved the above problems to be highly desirable.
Invention content
The technical problems to be solved by the invention：That there are porositys is low for current conventional ceramic filtrate, wear no resistance with
And antibiotic property is poor, can not meet the defect of material market requirement, provides a kind of modified preparation for carrying silver-colored floating bead base ceramic filter material
Method.
In order to solve the above technical problems, the present invention is using technical solution as described below：
A kind of modified preparation method for carrying silver-colored floating bead base ceramic filter material, it is characterised in that specifically preparation process is：
（1）Lauryl sodium sulfate, polyethylene glycol and deionized water are mixed and are placed in beaker, then by the beaker with mixture
It is put into ultrasonic disperse in ultrasonic wave separating apparatus, obtains self-control dispersion liquid；
（2）Floating bead and waste gypsum are mixed to be put into Muffle furnace and are sintered, room temperature is cooled to, the floating bead that obtains that treated, then will
Floating bead mixing is put into ball mill zirconium oxide ball milling pearl with treated, ball milling under conditions of rotating speed is 270~300r/min
80 mesh sieve is crossed afterwards, collects sieving floating bead powder；
（3）Sieving floating bead powder, silver nitrate solution and self-control dispersion liquid are mixed, stirring liquid is obtained, salpeter solution is used in combination
The pH of adjusting stirring liquid is put into still aging in unglazed greenhouse, filtering removal filtrate, taking-up to 4.7~5.2, then by stirring liquid
Filter residue is finally placed in oven and dried by filter residue, cooled to room temperature, grinding discharging, is obtained self-control and is carried silver-colored floating bead powder；
（4）Deionized water, ethyl orthosilicate and absolute ethyl alcohol are mixed, is stirred to react, obtains reaction solution, then drip into reaction solution
The hydrochloric acid for adding reaction solution volume 0.5% continues to keep the temperature hybrid reaction, obtains self-control reaction solution, and self-control reaction solution is put into ultrasonic wave
Ultrasonic disperse in separating apparatus, still aging after waiting for ultrasonic disperse, discharging is obtained from preparing silicon collosol；
（5）It counts in parts by weight, weighs 40~42 parts of self-controls respectively and carry silver-colored floating bead powder, 10~12 parts of polystyrene, 20~24
Part is placed in from preparing silicon collosol, 4~6 parts of amber powders, 2~4 parts of absolute ethyl alcohols and 32~36 parts of deionized waters mixing in blender,
Rotating speed stirs under conditions of being 210~240r/min, obtains mixed slurry, then mixed slurry is placed in comminutor and is granulated, obtains
To pelleting certainly；
（6）It will be put into Muffle furnace and be sintered from pelleting, and be cooled to room temperature, obtain filtering material particle, filtering material particle is put into water
Filtering material particle after immersion is finally placed in baking oven dry, cooling discharging, i.e., by middle immersion, the filtering material particle after being impregnated
The silver-colored floating bead base ceramic filter material of load must be modified.
Step（1）The mass ratio of the lauryl sodium sulfate, polyethylene glycol and deionized water is 3：1：5, ultrasound point
It is 210~240W to dissipate power, and ultrasonic disperse frequency is 24~27kHz, and the ultrasonic disperse time is 27~30min.
Step（2）The mass ratio of the floating bead and waste gypsum is 5：1, sintering temperature is 1240~1270 DEG C, when sintering
Between be 10~12h, the ball material mass ratio of zirconium oxide ball milling pearl and treated floating bead is 18：1, Ball-milling Time is 2~3h.
Step（3）Sieving floating bead powder, the silver nitrate solution that mass fraction is 30% and the quality for making dispersion liquid by oneself
Than being 1：7：2, the mixing time is 20~30min, and the mass fraction of salpeter solution is 27%, and the still aging time is 1~2
It, drying temperature is 96~100 DEG C, and drying time is 45~60min.
Step（4）The volume ratio of the deionized water, ethyl orthosilicate and absolute ethyl alcohol is 2：5：1, it is stirred to react temperature
Degree is 51~54 DEG C, and it is 16~20min to be stirred to react the time, and the mass fraction of hydrochloric acid is 27%, the reaction was continued, and the time is 21~
24min, ultrasonic disperse power be 180~200W, ultrasonic disperse frequency be 25~27kHz, the ultrasonic disperse time be 27~
30min, still aging time are 12~16h.
Step（5）The mixing time be 35~45min, prilling temperature be 110~124 DEG C, be granulated pressure be 5~
6MPa, granulation time are 21~32min.
Step（6）The sintering temperature be 1080~1150 DEG C, sintering time be 4~6h, soaking time be 10~
12h, drying temperature are 95~100 DEG C, and drying time is 2~4h.
Compared with other methods, advantageous effects are the present invention：
（1）The present invention is using floating bead powder as base material, and polystyrene is as pore creating material, from preparing silicon collosol as binder, and is aided with
The silver-colored floating bead base ceramic filter material of modified load is prepared in amber powder and absolute ethyl alcohol etc., and floating bead ball milling is obtained floating bead powder first,
And be blended with waste gypsum, since there is waste gypsum pore-creating performance on the one hand to play fluxing effect simultaneously under the action of its calcium ion
Promote floating bead sintering, further opens the stomata of fine floating bead, it is another to improve the specific surface area and porosity of ceramic filter material
Aspect under the high temperature conditions, causes material to generate more distortions of lattice and defect, increases its amorphous degree, be conducive to porous
The activity of ceramic filter material is improved, and recycles silver nitrate solution and self-control dispersion liquid to carry out floating bead dual modified, due to big
Partial pathogen is unicellular microorganism, is to maintain metabolism by protease, the silver ion in silver nitrate attracts egg
The mercapto of negative electrical charge is carried in white enzyme, and rapid in connection, effectively pierce through cell wall and cell membrane appearance, keep bacterium thin
Born of the same parents can not breathe, be metabolized and breed because of protein denaturation, until it is dead, improve the antibiotic property of ceramic filter material；
（2）Silver ion in the present invention plays wear-resisting effect jointly in sterilization process with base material, and in addition silver ion is certainly
It is dispersed between the hole of base material under the action of dispersion liquid processed, fine and close network structure is formed, to improve the resistance to of ceramic filter material
Mill property continues that the mixings such as ethyl orthosilicate, absolute ethyl alcohol are obtained by the reaction from preparing silicon collosol using sol-gel method, by
It is larger in the specific surface area from preparing silicon collosol, and surface active groups number is more, is easy to be formed in substrate surface fine and close, secured
Network structure, so that the movement of segment between base material is fettered, and from preparing silicon collosol silicon dioxide granule " nano effect "
The stress of extraneous application can be absorbed, and plays wear-resisting effect to base material, the wearability for being conducive to ceramic filter material is improved,
It is with a wide range of applications.
Specific implementation mode
It is 3 in mass ratio：1：5 are placed in the mixing of lauryl sodium sulfate, polyethylene glycol and deionized water in beaker, then will
Beaker with mixture is put into ultrasonic wave separating apparatus, under conditions of power is 210~240W, frequency is 24~27kHz
27~30min of ultrasonic disperse obtains self-control dispersion liquid；It is 5 in mass ratio：1 is put into floating bead and waste gypsum mixing in Muffle furnace,
It is sintered 10~12h under conditions of temperature is 1240~1270 DEG C, is cooled to room temperature, the floating bead that obtains that treated, then by oxygen
It is 18 to change zirconium ball milling pearl and treated floating bead by ball material mass ratio：1 mixing is put into ball mill, is 270~300r/ in rotating speed
80 mesh sieve is crossed under conditions of min after 2~3h of ball milling, collects sieving floating bead powder；It will sieving floating bead powder, mass fraction 30%
Silver nitrate solution and self-control dispersion liquid in mass ratio be 1：7：2 are mixed 20~30min, obtain stirring liquid, quality is used in combination
Score be 27% salpeter solution adjust stirring liquid pH to 4.7~5.2, then will stirring liquid be put into unglazed greenhouse stand it is old
Change 1~2 day, filtering removal filtrate takes out filter residue, finally filter residue is put into baking oven, under conditions of temperature is 96~100 DEG C
Dry 45~60min, cooled to room temperature, grinding discharging obtain self-control and carry silver-colored floating bead powder；It is 2 by volume：5：1 will
Deionized water, ethyl orthosilicate and absolute ethyl alcohol mixing are stirred to react 16~20min at being 51~54 DEG C in temperature, obtain anti-
Answer liquid, then the hydrochloric acid that the mass fraction of dropwise reaction liquid product 0.5% is 27% into reaction solution, continue to keep the temperature hybrid reaction 21~
24min obtains self-control reaction solution, self-control reaction solution is put into ultrasonic wave separating apparatus, power is 180~200W, frequency is
27~30min of ultrasonic disperse under conditions of 25~27kHz, after waiting for ultrasonic disperse, still aging 12~16h, discharging obtains
From preparing silicon collosol；It counts in parts by weight, weighs 40~42 parts of self-controls respectively and carry silver-colored floating bead powder, 10~12 parts of polystyrene, 20
~24 parts are placed in blender from preparing silicon collosol, 4~6 parts of amber powders, 2~4 parts of absolute ethyl alcohols and 32~36 parts of deionized water mixing
In, 35~45min is stirred under conditions of rotating speed is 210~240r/min, obtains mixed slurry, then mixed slurry is placed in and is made
In grain machine, it is granulated 21~32min under conditions of temperature is 110~124 DEG C, pressure is 5~6MPa, obtains making pellet certainly；It will
It is put into Muffle furnace from pelleting, 4~6h is sintered under conditions of temperature is 1080~1150 DEG C, room temperature is cooled to, obtains
Filtering material particle is impregnated 10~12h by filtering material particle into the water, the filtering material particle after being impregnated, finally by the filter after immersion
Material particle is placed in baking oven, and dry 2~4h under conditions of temperature is 95~100 DEG C, cooling discharging carries silver-colored floating bead to get modified
Base ceramic filter material.
It is 3 in mass ratio：1：5 are placed in the mixing of lauryl sodium sulfate, polyethylene glycol and deionized water in beaker, then will
Beaker with mixture is put into ultrasonic wave separating apparatus, ultrasonic disperse under conditions of power is 210W, frequency is 24kHz
27min obtains self-control dispersion liquid；It is 5 in mass ratio：1 is put into floating bead and waste gypsum mixing in Muffle furnace, is 1240 in temperature
It is sintered 10h under conditions of DEG C, is cooled to room temperature, the floating bead that obtains that treated, then by zirconium oxide ball milling pearl and treated drift
Pearl is 18 by ball material mass ratio：1 mixing is put into ball mill, crosses 80 mesh after ball milling 2h under conditions of rotating speed is 270r/min
Sieve collects sieving floating bead powder；The floating bead powder that is sieved, the silver nitrate solution that mass fraction is 30% and self-control dispersion liquid are pressed into matter
Amount is than being 1：7：2 are mixed 20min, obtain stirring liquid, and the salpeter solution that mass fraction is 27% is used in combination to adjust the pH of stirring liquid
It is put into unglazed greenhouse still aging 1 day to 4.7, then by stirring liquid, filtering removal filtrate takes out filter residue, finally by filter residue
It is put into baking oven, dry 45min under conditions of temperature is 96 DEG C, cooled to room temperature, grinding discharging obtains self-control and carries silver
Floating bead powder；It is 2 by volume：5：1 mixes deionized water, ethyl orthosilicate and absolute ethyl alcohol, is stirred at being 51 DEG C in temperature
Reaction 16min is mixed, reaction solution is obtained, then the hydrochloric acid that the mass fraction of dropwise reaction liquid product 0.5% is 27% into reaction solution, after
The warm hybrid reaction 21min of continuation of insurance, obtains self-control reaction solution, and self-control reaction solution is put into ultrasonic wave separating apparatus, is in power
180W, frequency are ultrasonic disperse 27min under conditions of 25kHz, and after waiting for ultrasonic disperse, still aging 12h, discharging obtains
From preparing silicon collosol；It counts in parts by weight, weighs 40 parts of self-controls respectively and carry silver-colored floating bead powder, 10 parts of polystyrene, 20 parts of self-control silicon
Colloidal sol, 4 parts of amber powders, 2 parts of absolute ethyl alcohols and 32 parts of deionized water mixing are placed in blender, in the item that rotating speed is 210r/min
Stir 35min under part, obtain mixed slurry, then mixed slurry is placed in comminutor, temperature be 110 DEG C, pressure 5MPa
Under conditions of be granulated 21min, obtain from making pellet；It will be put into Muffle furnace from pelleting, under conditions of temperature is 1080 DEG C
It is sintered 4h, room temperature is cooled to, obtains filtering material particle, filtering material particle is impregnated into 10h into the water, the filtrate after being impregnated
Filtering material particle after immersion, is finally placed in baking oven by grain, dry 2h under conditions of temperature is 95 DEG C, cooling discharging to get
It is modified to carry silver-colored floating bead base ceramic filter material.
It is 3 in mass ratio：1：5 are placed in the mixing of lauryl sodium sulfate, polyethylene glycol and deionized water in beaker, then will
Beaker with mixture is put into ultrasonic wave separating apparatus, ultrasonic disperse under conditions of power is 230W, frequency is 26kHz
29min obtains self-control dispersion liquid；It is 5 in mass ratio：1 is put into floating bead and waste gypsum mixing in Muffle furnace, is 1255 in temperature
It is sintered 11h under conditions of DEG C, is cooled to room temperature, the floating bead that obtains that treated, then by zirconium oxide ball milling pearl and treated drift
Pearl is 18 by ball material mass ratio：1 mixing is put into ball mill, crosses 80 mesh after ball milling 2.5h under conditions of rotating speed is 285r/min
Sieve collects sieving floating bead powder；The floating bead powder that is sieved, the silver nitrate solution that mass fraction is 30% and self-control dispersion liquid are pressed into matter
Amount is than being 1：7：2 are mixed 25min, obtain stirring liquid, and the salpeter solution that mass fraction is 27% is used in combination to adjust the pH of stirring liquid
It is put into unglazed greenhouse still aging 1.5 days to 5.0, then by stirring liquid, filtering removal filtrate takes out filter residue, finally will filter
Slag is put into baking oven, dry 53min under conditions of temperature is 97 DEG C, cooled to room temperature, and grinding discharging obtains self-control and carries
Silver-colored floating bead powder；It is 2 by volume：5：1 mixes deionized water, ethyl orthosilicate and absolute ethyl alcohol, in the case where temperature is 53 DEG C
It is stirred to react 18min, obtains reaction solution, then the hydrochloric acid that the mass fraction of dropwise reaction liquid product 0.5% is 27% into reaction solution,
Continue to keep the temperature hybrid reaction 23min, obtain self-control reaction solution, self-control reaction solution is put into ultrasonic wave separating apparatus, is in power
190W, frequency are ultrasonic disperse 28min under conditions of 26kHz, and after waiting for ultrasonic disperse, still aging 14h, discharging obtains
From preparing silicon collosol；It counts in parts by weight, weighs 41 parts of self-controls respectively and carry silver-colored floating bead powder, 11 parts of polystyrene, 23 parts of self-control silicon
Colloidal sol, 5 parts of amber powders, 3 parts of absolute ethyl alcohols and 34 parts of deionized water mixing are placed in blender, in the item that rotating speed is 225r/min
40min is stirred under part, obtains mixed slurry, then mixed slurry is placed in comminutor, temperature is 117 DEG C, pressure is
It is granulated 28min under conditions of 5.5MPa, obtains making pellet certainly；It will be put into Muffle furnace from pelleting, and be 1130 DEG C in temperature
Under the conditions of be sintered 5h, be cooled to room temperature, obtain filtering material particle, filtering material particle is impregnated into 11h into the water, after being impregnated
Filtering material particle after immersion is finally placed in baking oven by filtering material particle, and drying 3h under conditions of temperature is 96 DEG C, cooling goes out
Material carries silver-colored floating bead base ceramic filter material to get modified.
It is 3 in mass ratio：1：5 are placed in the mixing of lauryl sodium sulfate, polyethylene glycol and deionized water in beaker, then will
Beaker with mixture is put into ultrasonic wave separating apparatus, ultrasonic disperse under conditions of power is 240W, frequency is 27kHz
30min obtains self-control dispersion liquid；It is 5 in mass ratio：1 is put into floating bead and waste gypsum mixing in Muffle furnace, is 1270 in temperature
It is sintered 12h under conditions of DEG C, is cooled to room temperature, the floating bead that obtains that treated, then by zirconium oxide ball milling pearl and treated drift
Pearl is 18 by ball material mass ratio：1 mixing is put into ball mill, crosses 80 mesh after ball milling 3h under conditions of rotating speed is 300r/min
Sieve collects sieving floating bead powder；The floating bead powder that is sieved, the silver nitrate solution that mass fraction is 30% and self-control dispersion liquid are pressed into matter
Amount is than being 1：7：2 are mixed 30min, obtain stirring liquid, and the salpeter solution that mass fraction is 27% is used in combination to adjust the pH of stirring liquid
It is put into unglazed greenhouse still aging 2 days to 5.2, then by stirring liquid, filtering removal filtrate takes out filter residue, finally by filter residue
It is put into baking oven, dry 60min under conditions of temperature is 100 DEG C, cooled to room temperature, grinding discharging obtains self-control and carries silver
Floating bead powder；It is 2 by volume：5：1 mixes deionized water, ethyl orthosilicate and absolute ethyl alcohol, is stirred at being 54 DEG C in temperature
Reaction 20min is mixed, reaction solution is obtained, then the hydrochloric acid that the mass fraction of dropwise reaction liquid product 0.5% is 27% into reaction solution, after
The warm hybrid reaction 24min of continuation of insurance, obtains self-control reaction solution, and self-control reaction solution is put into ultrasonic wave separating apparatus, is in power
200W, frequency are ultrasonic disperse 30min under conditions of 27kHz, and after waiting for ultrasonic disperse, still aging 16h, discharging obtains
From preparing silicon collosol；It counts in parts by weight, weighs 42 parts of self-controls respectively and carry silver-colored floating bead powder, 12 parts of polystyrene, 24 parts of self-control silicon
Colloidal sol, 6 parts of amber powders, 4 parts of absolute ethyl alcohols and 36 parts of deionized water mixing are placed in blender, in the item that rotating speed is 240r/min
Stir 45min under part, obtain mixed slurry, then mixed slurry is placed in comminutor, temperature be 124 DEG C, pressure 6MPa
Under conditions of be granulated 32min, obtain from making pellet；It will be put into Muffle furnace from pelleting, under conditions of temperature is 1150 DEG C
It is sintered 6h, room temperature is cooled to, obtains filtering material particle, filtering material particle is impregnated into 12h into the water, the filtrate after being impregnated
Filtering material particle after immersion, is finally placed in baking oven by grain, dry 4h under conditions of temperature is 100 DEG C, cooling discharging to get
It is modified to carry silver-colored floating bead base ceramic filter material.
The ceramic filter material that comparative example is produced with Lanzhou company is as a comparison case
Ceramic filter material in modified load silver floating bead base ceramic filter material produced by the present invention and comparative example is detected, testing result
As shown in table 1：
It takes chlorobenzene standard specimen to be configured to each 4 parts of the pending water sample of a concentration of 5mg/L, 20mg/L with distilled water, is made using the present invention
The modified ceramic filter material carried in silver-colored floating bead base ceramic filter material and comparative example obtained is detected it.Filtering layer in experimental provision filter column
Thickness takes 350mm, filtering velocity that 4m/h, water sample is taken to be filtered respectively through Filter column, keeps water-in and water-out stability of flow in filtering as possible, and
Record.
1 performance measurement result of table
From the data in table 1, it can be seen that the silver-colored floating bead base ceramic filter material of modified load produced by the present invention, has good mechanical performance, adsorption energy
The advantages that power and good, sterilising strong filter efficiency, hence it is evident that be better than comparative example product.Therefore, there is wide prospect of the application.
Claims (7)
1. a kind of modified preparation method for carrying silver-colored floating bead base ceramic filter material, it is characterised in that specifically preparation process is：
（1）Lauryl sodium sulfate, polyethylene glycol and deionized water are mixed and are placed in beaker, then by the beaker with mixture
It is put into ultrasonic disperse in ultrasonic wave separating apparatus, obtains self-control dispersion liquid；
（2）Floating bead and waste gypsum are mixed to be put into Muffle furnace and are sintered, room temperature is cooled to, the floating bead that obtains that treated, then will
Floating bead mixing is put into ball mill zirconium oxide ball milling pearl with treated, ball milling under conditions of rotating speed is 270~300r/min
80 mesh sieve is crossed afterwards, collects sieving floating bead powder；
（3）Sieving floating bead powder, silver nitrate solution and self-control dispersion liquid are mixed, stirring liquid is obtained, salpeter solution is used in combination
The pH of adjusting stirring liquid is put into still aging in unglazed greenhouse, filtering removal filtrate, taking-up to 4.7~5.2, then by stirring liquid
Filter residue is finally placed in oven and dried by filter residue, cooled to room temperature, grinding discharging, is obtained self-control and is carried silver-colored floating bead powder；
（4）Deionized water, ethyl orthosilicate and absolute ethyl alcohol are mixed, is stirred to react, obtains reaction solution, then drip into reaction solution
The hydrochloric acid for adding reaction solution volume 0.5% continues to keep the temperature hybrid reaction, obtains self-control reaction solution, and self-control reaction solution is put into ultrasonic wave
Ultrasonic disperse in separating apparatus, still aging after waiting for ultrasonic disperse, discharging is obtained from preparing silicon collosol；
（5）It counts in parts by weight, weighs 40~42 parts of self-controls respectively and carry silver-colored floating bead powder, 10~12 parts of polystyrene, 20~24
Part is placed in from preparing silicon collosol, 4~6 parts of amber powders, 2~4 parts of absolute ethyl alcohols and 32~36 parts of deionized waters mixing in blender,
Rotating speed stirs under conditions of being 210~240r/min, obtains mixed slurry, then mixed slurry is placed in comminutor and is granulated, obtains
To pelleting certainly；
（6）It will be put into Muffle furnace and be sintered from pelleting, and be cooled to room temperature, obtain filtering material particle, filtering material particle is put into water
Filtering material particle after immersion is finally placed in baking oven dry, cooling discharging, i.e., by middle immersion, the filtering material particle after being impregnated
The silver-colored floating bead base ceramic filter material of load must be modified.
2. a kind of modified preparation method for carrying silver-colored floating bead base ceramic filter material according to claim 1, it is characterised in that：Step
（1）The mass ratio of the lauryl sodium sulfate, polyethylene glycol and deionized water is 3：1：5, ultrasonic disperse power be 210~
240W, ultrasonic disperse frequency are 24~27kHz, and the ultrasonic disperse time is 27~30min.
3. a kind of modified preparation method for carrying silver-colored floating bead base ceramic filter material according to claim 1, it is characterised in that：Step
（2）The mass ratio of the floating bead and waste gypsum is 5：1, sintering temperature is 1240~1270 DEG C, and sintering time is 10~12h,
The ball material mass ratio of zirconium oxide ball milling pearl and treated floating bead is 18：1, Ball-milling Time is 2~3h.
4. a kind of modified preparation method for carrying silver-colored floating bead base ceramic filter material according to claim 1, it is characterised in that：Step
（3）Silver nitrate solution that the sieving floating bead powder, mass fraction are 30% and to make the mass ratio of dispersion liquid by oneself be 1：7：2, it mixes
Conjunction mixing time is 20~30min, and the mass fraction of salpeter solution is 27%, and the still aging time is 1~2 day, and drying temperature is
96~100 DEG C, drying time is 45~60min.
5. a kind of modified preparation method for carrying silver-colored floating bead base ceramic filter material according to claim 1, it is characterised in that：Step
（4）The volume ratio of the deionized water, ethyl orthosilicate and absolute ethyl alcohol is 2：5：1, it is 51~54 DEG C to be stirred to react temperature,
It is 16~20min to be stirred to react the time, and the mass fraction of hydrochloric acid is 27%, and the reaction was continued, and the time is 21~24min, ultrasonic disperse
Power is 180~200W, and ultrasonic disperse frequency is 25~27kHz, and the ultrasonic disperse time is 27~30min, still aging time
For 12~16h.
6. a kind of modified preparation method for carrying silver-colored floating bead base ceramic filter material according to claim 1, it is characterised in that：Step
（5）The mixing time is 35~45min, and prilling temperature is 110~124 DEG C, and granulation pressure is 5~6MPa, granulation time
For 21~32min.
7. a kind of modified preparation method for carrying silver-colored floating bead base ceramic filter material according to claim 1, it is characterised in that：Step
（6）The sintering temperature is 1080~1150 DEG C, and sintering time is 4~6h, and soaking time is 10~12h, and drying temperature is
95~100 DEG C, drying time is 2~4h.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112341206A (en) * | 2020-11-05 | 2021-02-09 | 衡阳凯新特种材料科技有限公司 | Forming method of rare earth praseodymium-holmium-stabilized silicon nitride ceramic |
| CN115093194A (en) * | 2022-08-24 | 2022-09-23 | 江苏夸迪安防集团有限公司 | Antibacterial floating bead fireproof heat-insulation plate and preparation method and application thereof |
| CN116059739A (en) * | 2023-03-06 | 2023-05-05 | 山东华城工程技术有限公司 | Silver-doped surface-modified multifunctional filter material and preparation method and application thereof |
-
2018
- 2018-04-27 CN CN201810391207.4A patent/CN108339324A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112341206A (en) * | 2020-11-05 | 2021-02-09 | 衡阳凯新特种材料科技有限公司 | Forming method of rare earth praseodymium-holmium-stabilized silicon nitride ceramic |
| CN115093194A (en) * | 2022-08-24 | 2022-09-23 | 江苏夸迪安防集团有限公司 | Antibacterial floating bead fireproof heat-insulation plate and preparation method and application thereof |
| CN115093194B (en) * | 2022-08-24 | 2022-11-08 | 江苏夸迪安防集团有限公司 | Antibacterial floating bead fireproof heat-insulation plate and preparation method and application thereof |
| CN116059739A (en) * | 2023-03-06 | 2023-05-05 | 山东华城工程技术有限公司 | Silver-doped surface-modified multifunctional filter material and preparation method and application thereof |
| CN116059739B (en) * | 2023-03-06 | 2024-02-27 | 山东华城工程技术有限公司 | Silver-doped surface-modified multifunctional filter material and preparation method and application thereof |
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Application publication date: 20180731 |