CN108046747A - A kind of nano-honeycomb ceramics - Google Patents
A kind of nano-honeycomb ceramics Download PDFInfo
- Publication number
- CN108046747A CN108046747A CN201711240878.2A CN201711240878A CN108046747A CN 108046747 A CN108046747 A CN 108046747A CN 201711240878 A CN201711240878 A CN 201711240878A CN 108046747 A CN108046747 A CN 108046747A
- Authority
- CN
- China
- Prior art keywords
- parts
- nano
- honeycomb ceramics
- ceramics
- slurry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 46
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 229910052901 montmorillonite Inorganic materials 0.000 claims abstract description 8
- 235000019354 vermiculite Nutrition 0.000 claims abstract description 7
- 239000004359 castor oil Substances 0.000 claims abstract description 6
- 235000019438 castor oil Nutrition 0.000 claims abstract description 6
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims abstract description 6
- 239000002002 slurry Substances 0.000 claims description 25
- 235000011837 pasties Nutrition 0.000 claims description 10
- 238000005245 sintering Methods 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000003643 water by type Substances 0.000 claims description 5
- 238000001179 sorption measurement Methods 0.000 abstract description 4
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 abstract description 2
- 239000010455 vermiculite Substances 0.000 abstract description 2
- 229910052902 vermiculite Inorganic materials 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 241000264877 Hippospongia communis Species 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000588724 Escherichia coli Species 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Classifications
-
- 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
- C04B33/1305—Organic 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
- C04B33/36—Reinforced clay-wares
-
- 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
- C04B38/0006—Honeycomb structures
-
- 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
-
- 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
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/52—Constituents or additives characterised by their shapes
- C04B2235/5208—Fibers
- C04B2235/5216—Inorganic
-
- 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
- C04B2235/70—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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
- Filtering Materials (AREA)
Abstract
The invention discloses a kind of nano-honeycomb ceramics, the parts by weight of raw material and each raw material contained by the nano-honeycomb ceramics are：60 85 parts of diatomite；10 30 parts of montmorillonite；5 10 parts of vermiculite；28 parts of gas-phase silica；5 10 parts of castor oil；26 parts of ceramic fibre.Nano-honeycomb ceramics of the present invention have the characteristics that porosity is high, adsorption capacity is strong and high mechanical strength as filter.
Description
Technical field
The present invention relates to filter technology field, prepared more particularly, to a kind of by raw materials such as diatomite, montmorillonites
Nano-honeycomb ceramics.
Background technology
Ceramic honey comb is one kind in porous ceramics, be made of countless equal holes it is variously-shaped, it is maximum at present
Hole count has reached 20-40/cm2, density 4-6g/cm3, and water absorption rate is up to more than 20%, the characteristics of due to stephanoporate thin wall, greatly
The big specific surface area for adding porous ceramics can be used as heat accumulation, filler, catalyst carrier or filtering material etc..
The raw materials for production of common ceramic honey comb are kaolin, talcum powder, aluminium powder, clay etc., and the structure of ceramic honey comb is special
Property there is when determining it as filtering material preferable filter effect and adsorption capacity.
The content of the invention
In view of the above-mentioned problems existing in the prior art, the present patent application provides a kind of nano-honeycomb ceramics and its preparation side
Method.Ceramic honey comb of the present invention is used as filter with porosity height, adsorption capacity by force and with higher mechanical strength.
Technical scheme is as follows：
A kind of nano-honeycomb ceramics, the parts by weight of raw material and each raw material contained by the nano-honeycomb ceramics are：
The preparation method of the nano-honeycomb ceramics is：
(1) 60-85 parts of diatomite, 5-10 parts of vermiculites and 2-8 parts of gas-phase silicas are placed in planetary mills and are ground to averagely
Grain size is 20~100nm；
(2) by grinding product made from step (1) and 10-30 parts of montmorillonites, 5-10 parts of castor oil, 2-6 parts of ceramic fibres
Mixing, adds 40-60 parts of deionized waters, stirs into pasty slurry afterwards；
(3) pasty slurry obtained by step (2) is freeze-dried into bulk；
(4) block slurry obtained by step (3) is placed in mold, and slurry base is pressed into using hydraulic press；
(5) slurry base obtained by step (4) is placed in tunnel type high temperature sintering furnace, adjusting furnace temperature is 1100-1300 DEG C, sintering
2h is kept the temperature after 12-24h, afterwards cooled to room temperature, the nano-honeycomb ceramics are made.
The pressure of hydraulic press is used as 800~900kgf/cm in the step (4)2。
The present invention is beneficial to be had technical effect that：
Nano-honeycomb ceramics of the present invention select the raw materials hybrid combinations such as diatomite, montmorillonite, vermiculite, and institute is made by calcining
Stating ceramic honey comb not only has the characteristics that heat safe, also determines its preferable filtering and absorption property by honeycomb structure.
Ceramic honey comb of the present invention is used as filter with porosity height, adsorption capacity by force and with higher mechanical strength.
Specific embodiment
With reference to embodiment, the present invention is specifically described.
Embodiment 1
A kind of preparation method of nano-honeycomb ceramics, includes the following steps：
(1) 60 parts of diatomite, 8 parts of vermiculites and 6 parts of gas-phase silicas are placed in planetary mills and are ground to average grain diameter and are
80nm；
(2) grinding product made from step (1) is mixed with 30 parts of montmorillonites, 10 parts of castor oil, 4 parts of ceramic fibres, it
After add 40 parts of deionized waters, stir into pasty slurry；
(3) pasty slurry obtained by step (2) is freeze-dried into bulk；
(4) block slurry obtained by step (3) is placed in mold, and slurry base is pressed into using hydraulic press；Using hydraulic press
Pressure be 900kgf/cm2；
(5) slurry base obtained by step (4) is placed in tunnel type high temperature sintering furnace, adjusting furnace temperature is 1100-1300 DEG C, sintering
2h is kept the temperature after 12-24h, afterwards cooled to room temperature, the nano-honeycomb ceramics are made.
Embodiment 2
A kind of preparation method of nano-honeycomb ceramics, includes the following steps：
(1) 75 parts of diatomite, 10 parts of vermiculites and 8 parts of gas-phase silicas are placed in planetary mills and are ground to average grain diameter and are
60nm；
(2) grinding product made from step (1) is mixed with 10 parts of montmorillonites, 8 parts of castor oil, 6 parts of ceramic fibres, afterwards
60 parts of deionized waters are added, stir into pasty slurry；
(3) pasty slurry obtained by step (2) is freeze-dried into bulk；
(4) block slurry obtained by step (3) is placed in mold, and slurry base is pressed into using hydraulic press；Using hydraulic press
Pressure be 850kgf/cm2；
(5) slurry base obtained by step (4) is placed in tunnel type high temperature sintering furnace, adjusting furnace temperature is 1100-1300 DEG C, sintering
2h is kept the temperature after 12-24h, afterwards cooled to room temperature, the nano-honeycomb ceramics are made.
Embodiment 3
A kind of preparation method of nano-honeycomb ceramics, includes the following steps：
(1) 85 parts of diatomite, 5 parts of vermiculites and 5 parts of gas-phase silicas are placed in planetary mills and are ground to average grain diameter and are
50nm；
(2) grinding product made from step (1) is mixed with 20 parts of montmorillonites, 5 parts of castor oil, 2 parts of ceramic fibres, afterwards
50 parts of deionized waters are added, stir into pasty slurry；
(3) pasty slurry obtained by step (2) is freeze-dried into bulk；
(4) block slurry obtained by step (3) is placed in mold, and slurry base is pressed into using hydraulic press；Using hydraulic press
Pressure be 900kgf/cm2；
(5) slurry base obtained by step (4) is placed in tunnel type high temperature sintering furnace, adjusting furnace temperature is 1100-1300 DEG C, sintering
2h is kept the temperature after 12-24h, afterwards cooled to room temperature, the nano-honeycomb ceramics are made.
Test case：
(1) 1 gained nano-honeycomb ceramic filter concentration of the embodiment of the present invention is used as 5 × 105The Escherichia coli of a/ml are hanged
Liquid；The results show Escherichia coli 98% are fallen by nano-honeycomb ceramic filter of the present invention, illustrate that nano-honeycomb ceramics of the present invention can be with
As filter, and there is good filter effect to bacterium.
(2) 2 gained ceramics of the embodiment of the present invention are placed in 600 DEG C of boiling water and boil 10min, ceramics are taken out afterwards, are taken advantage of
Heat is placed in 20 DEG C of water, and observation ceramic cup whether there is cracking phenomena；By observation, products obtained therefrom of the embodiment of the present invention does not occur quick-fried
The situation split or be cracked, therefore the ceramics obtained by the present patent application have high temperature resistant, the alternate characteristic of cold-hot.
(3) impact strength of 3 gained ceramics of the GB/T 1943-2007 methods test embodiment of the present invention is used as 24kj/
m2, product of the present invention is with good impact strength.
Claims (3)
- A kind of 1. nano-honeycomb ceramics, it is characterised in that the parts by weight of raw material and each raw material contained by the nano-honeycomb ceramics For：
- 2. nano-honeycomb according to claim 1 ceramics, it is characterised in that the preparation method of the nano-honeycomb ceramics is：(1) 60-85 parts of diatomite, 5-10 parts of vermiculites and 2-8 parts of gas-phase silicas are placed in planetary mills and are ground to average grain diameter For 20~100nm；(2) grinding product made from step (1) is mixed with 10-30 parts of montmorillonites, 5-10 parts of castor oil, 2-6 parts of ceramic fibres, 40-60 parts of deionized waters are added afterwards, stir into pasty slurry；(3) pasty slurry obtained by step (2) is freeze-dried into bulk；(4) block slurry obtained by step (3) is placed in mold, and slurry base is pressed into using hydraulic press；(5) slurry base obtained by step (4) is placed in tunnel type high temperature sintering furnace, adjusting furnace temperature is 1100-1300 DEG C, is sintered 12- It keeps the temperature 2h afterwards for 24 hours, afterwards cooled to room temperature, the nano-honeycomb ceramics is made.
- 3. nano-honeycomb ceramics according to claim 2, it is characterised in that using the pressure of hydraulic press in the step (4) For 800~900kgf/cm2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711240878.2A CN108046747A (en) | 2017-11-30 | 2017-11-30 | A kind of nano-honeycomb ceramics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711240878.2A CN108046747A (en) | 2017-11-30 | 2017-11-30 | A kind of nano-honeycomb ceramics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108046747A true CN108046747A (en) | 2018-05-18 |
Family
ID=62121827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711240878.2A Pending CN108046747A (en) | 2017-11-30 | 2017-11-30 | A kind of nano-honeycomb ceramics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108046747A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108640667A (en) * | 2018-06-29 | 2018-10-12 | 福建省德化县邦威陶瓷有限公司 | A kind of easy fired light ceramics product and its manufacturing process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603348A (en) * | 2012-03-14 | 2012-07-25 | 刘相红 | Nano-pore heat-insulation material and manufacturing method thereof |
| CN104043288A (en) * | 2014-05-20 | 2014-09-17 | 浙江朝晖过滤技术股份有限公司 | Nnano-silver diatomite antibacterial filter core and preparation method thereof |
| CN105777061A (en) * | 2014-12-14 | 2016-07-20 | 西安泽华建筑装饰工程有限责任公司 | Ceramic tile for kitchen |
| CN106390758A (en) * | 2016-08-31 | 2017-02-15 | 广东景龙建设集团有限公司 | Filter membrane made of concrete composite material |
-
2017
- 2017-11-30 CN CN201711240878.2A patent/CN108046747A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603348A (en) * | 2012-03-14 | 2012-07-25 | 刘相红 | Nano-pore heat-insulation material and manufacturing method thereof |
| CN104043288A (en) * | 2014-05-20 | 2014-09-17 | 浙江朝晖过滤技术股份有限公司 | Nnano-silver diatomite antibacterial filter core and preparation method thereof |
| CN105777061A (en) * | 2014-12-14 | 2016-07-20 | 西安泽华建筑装饰工程有限责任公司 | Ceramic tile for kitchen |
| CN106390758A (en) * | 2016-08-31 | 2017-02-15 | 广东景龙建设集团有限公司 | Filter membrane made of concrete composite material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108640667A (en) * | 2018-06-29 | 2018-10-12 | 福建省德化县邦威陶瓷有限公司 | A kind of easy fired light ceramics product and its manufacturing process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104150882B (en) | A kind of aluminum oxide preparation of microbeads | |
| RU2459852C1 (en) | Manufacturing method of ceramic proppant, and proppant itself | |
| Ganesh | Fabrication of magnesium aluminate (MgAl2O4) spinel foams | |
| CN100384781C (en) | Method for preparing silicon carbide porous ceramic using gelatin wrapping-freeze drying process | |
| AU2020101723A4 (en) | Foamed ceramics and preparation method thereof | |
| US8283271B2 (en) | High strength proppants | |
| CA2788186A1 (en) | Self-toughened high-strength proppant and methods of making same | |
| CN104529506B (en) | A kind of preparation method of composite natral porous mineral ceramic fine bead | |
| JPH0660009B2 (en) | Press-formed product mainly composed of silicon dioxide produced by thermal decomposition, method for producing the same, and catalyst carrier or catalyst comprising the same | |
| MX2014004760A (en) | Porous proppants. | |
| Liu et al. | A novel approach to fabricate porous alumina ceramics with excellent properties via pore-forming agent combined with sol impregnation technique | |
| CN109020628A (en) | A kind of SiC nanowire enhancing porous ceramic composite and preparation method thereof | |
| CN101560381B (en) | Ceramic proppant and preparation method thereof | |
| Montero et al. | Alumina porous nanomaterials obtained by colloidal processing using D-fructose as dispersant and porosity promoter | |
| CN103242035A (en) | Method for improving appearance quality of inertial porcelain ball | |
| CN108046747A (en) | A kind of nano-honeycomb ceramics | |
| CN108975867A (en) | The formula and preparation method of diatomite composite material based on oil-containing waste diatomite | |
| CN103833387B (en) | High abrasion silicon mullite red brick and preparation technology thereof | |
| CN105732085B (en) | A kind of nanostructured corundum honeycomb ceramic body and preparation method thereof | |
| WO2006045169A2 (en) | Processes for niobium oxide extrusion casting or conformation and preparation of a hydrolized and amorphous niobium oxide and use of a niobium oxide in the extruded form | |
| Yildiz et al. | Assembly of SBA-15 into hierarchical porous monoliths replicating polymeric scaffolds | |
| CN106497542A (en) | Well fracturing proppant that a kind of flyash is fired into and preparation method thereof | |
| CN1193958C (en) | With gamma-Al2O3Process for producing sintered tabular corundum from raw material | |
| CN110937906B (en) | Safe and energy-saving smelting furnace body and smelting device adopting same | |
| CN110193382A (en) | The method for preparing the adjustable reticulated ceramics catalyst carrier of porosity using concave convex rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180518 |
|
| RJ01 | Rejection of invention patent application after publication |