CN109665821A - A kind of foamed ceramics and its preparation method and application for catalyst carrier - Google Patents
A kind of foamed ceramics and its preparation method and application for catalyst carrier Download PDFInfo
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- CN109665821A CN109665821A CN201910002037.0A CN201910002037A CN109665821A CN 109665821 A CN109665821 A CN 109665821A CN 201910002037 A CN201910002037 A CN 201910002037A CN 109665821 A CN109665821 A CN 109665821A
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- slurry
- hanging
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- preceramic
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- 239000000919 ceramic Substances 0.000 title claims abstract description 153
- 239000003054 catalyst Substances 0.000 title claims abstract description 60
- 238000002360 preparation method Methods 0.000 title claims abstract description 35
- 239000002002 slurry Substances 0.000 claims abstract description 138
- 239000006260 foam Substances 0.000 claims abstract description 58
- 229920005830 Polyurethane Foam Polymers 0.000 claims abstract description 31
- 239000011496 polyurethane foam Substances 0.000 claims abstract description 31
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 238000007711 solidification Methods 0.000 claims abstract description 4
- 230000008023 solidification Effects 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims description 34
- 239000011230 binding agent Substances 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 23
- 239000011148 porous material Substances 0.000 claims description 21
- 238000000498 ball milling Methods 0.000 claims description 20
- 238000002156 mixing Methods 0.000 claims description 20
- 229910000863 Ferronickel Inorganic materials 0.000 claims description 19
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 19
- 238000005245 sintering Methods 0.000 claims description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 15
- 239000002270 dispersing agent Substances 0.000 claims description 15
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 14
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 14
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 14
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 14
- 241000364051 Pima Species 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 229920002635 polyurethane Polymers 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 claims description 5
- 229910052573 porcelain Inorganic materials 0.000 claims description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 2
- 229920002472 Starch Polymers 0.000 claims description 2
- 239000001099 ammonium carbonate Substances 0.000 claims description 2
- 235000012501 ammonium carbonate Nutrition 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 239000008107 starch Substances 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 238000003763 carbonization Methods 0.000 claims 1
- 239000011863 silicon-based powder Substances 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 4
- 230000007812 deficiency Effects 0.000 abstract description 2
- 238000001035 drying Methods 0.000 description 16
- 238000003756 stirring Methods 0.000 description 14
- 210000003205 muscle Anatomy 0.000 description 12
- 238000005303 weighing Methods 0.000 description 11
- 239000002243 precursor Substances 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 239000008367 deionised water Substances 0.000 description 8
- 229910021641 deionized water Inorganic materials 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 8
- 229910010271 silicon carbide Inorganic materials 0.000 description 8
- 238000001027 hydrothermal synthesis Methods 0.000 description 7
- 238000010792 warming Methods 0.000 description 6
- 229910016874 Fe(NO3) Inorganic materials 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- SXTLQDJHRPXDSB-UHFFFAOYSA-N copper;dinitrate;trihydrate Chemical compound O.O.O.[Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O SXTLQDJHRPXDSB-UHFFFAOYSA-N 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 5
- AOPCKOPZYFFEDA-UHFFFAOYSA-N nickel(2+);dinitrate;hexahydrate Chemical compound O.O.O.O.O.O.[Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O AOPCKOPZYFFEDA-UHFFFAOYSA-N 0.000 description 5
- 238000007873 sieving Methods 0.000 description 5
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 description 4
- JJLJMEJHUUYSSY-UHFFFAOYSA-L Copper hydroxide Chemical compound [OH-].[OH-].[Cu+2] JJLJMEJHUUYSSY-UHFFFAOYSA-L 0.000 description 4
- 239000005750 Copper hydroxide Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000003321 amplification Effects 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 239000011805 ball Substances 0.000 description 4
- 229910001956 copper hydroxide Inorganic materials 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 210000002700 urine Anatomy 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 238000003682 fluorination reaction Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical group 0.000 description 1
- 239000011806 microball Substances 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009955 starching Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/755—Nickel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
- B01J37/0018—Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat)
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/082—Decomposition and pyrolysis
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/10—Heat treatment in the presence of water, e.g. steam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/16—Reducing
- B01J37/18—Reducing with gases containing free hydrogen
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- 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
- C04B38/0615—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 the burned-out substance being a monolitic element having approximately the same dimensions as the final article, e.g. a porous polyurethane sheet or a prepreg obtained by bonding together resin particles
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- 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
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6562—Heating rate
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6567—Treatment time
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- Structural Engineering (AREA)
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- Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Catalysts (AREA)
Abstract
The invention belongs to the technical field of catalyst carrier more particularly to a kind of foamed ceramicses and its preparation method and application for catalyst carrier.The preparation method of foamed ceramics provided by the invention, comprising the following steps: step 1, preparation first time hanging ceramic slurry and second of hanging ceramic slurry；Step 2, after polyurethane foam to be dipped to first time hanging ceramic slurry, dry solidification, cooling obtain primary pulp hanging foam；Step 3, by after second of hanging ceramic slurry of primary pulp hanging foam-coating, be dried, cooling obtain secondary hanging foam；Secondary hanging foam is first sintered at 600-700 DEG C and then is sintered at 1400-1600 DEG C by step 4, obtains the preparation method of the foamed ceramics for catalyst carrier.Provided by the present invention for the foamed ceramics of catalyst carrier, solving catalyst carrier in the prior art, there are the small technological deficiencies low with porosity of specific surface area.
Description
Technical field
The invention belongs to the technical field of catalyst carrier more particularly to a kind of foamed ceramics for catalyst carrier and
Preparation method and application.
Background technique
Catalyst carrier is also known as carrier (support), is one of composition of loaded catalyst, is catalyst activity component
Skeleton, support active component, disperse active component, while the intensity of catalyst can also be increased.Majority carrier is
Product in Catalyst, catalyst carrier type is more, there is metal oxide carrier, molecular sieve carrier and other carriers.
Studying more catalyst carrier both at home and abroad has: SiO2, Al2O3, glass fiber mesh (cloth), hollow ceramic ball, sea
Sand, lamellar graphite, hollow glass bead, quartz glass tube (piece), common (conduction) sheet glass, organic glass, optical fiber, naturally
Clay, foamed plastics, resin, sawdust, expanded perlite, active carbon etc..
But current catalyst carrier is that specific surface area is small low with porosity there are a defect.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of large specific surface area, pressure drop is low and porosity is high catalyst carries
Body.
The present invention provides a kind of preparation methods of foamed ceramics for catalyst carrier, comprising the following steps:
Step 1, preparation first time hanging ceramic slurry include: first time preceramic slurry and first part of binder；It is described
First time preceramic slurry includes ceramic powder, dispersing agent, pore creating material and water；Ceramic powder, dispersing agent, pore creating material and water are subjected to ball
Mill mixing, obtains first time preceramic slurry after separating abrading-ball, by the first time preceramic slurry and described first part bonding
Agent is mixed to get first time hanging ceramic slurry；
Preparing second of hanging ceramic slurry includes: second of preceramic slurry and second part of binder；Described second
Preceramic slurry includes: ceramic powder, dispersing agent, pore creating material and water；Ceramic powder, dispersing agent, pore creating material and water progress ball milling are mixed
It closes, obtains second of preceramic slurry after separating abrading-ball, second of preceramic slurry and second part of binder are mixed
Conjunction obtains second of hanging ceramic slurry；
Polyurethane foam is dipped the first time hanging ceramic slurry by step 2, and it is extra in the polyurethane foam to remove
First time hanging ceramic slurry after, obtain a foamed ceramics precast body, a foamed ceramics precast body is dry solid
Change, cooling obtains primary pulp hanging foam；
Step 3, by second of hanging ceramic slurry described in the primary pulp hanging foam-coating, remove the primary pulp hanging bubble
On foam after second extra of hanging ceramic slurry, secondary foam ceramics preparative body is obtained, by the prefabricated soma of the foamed ceramics
Dry, cooling obtains secondary hanging foam；
Step 4, by the secondary hanging foam after 600-700 DEG C of progress first sintering, first sintering
It 1400-1600 DEG C, carries out second and is sintered, obtain the preparation method of the foamed ceramics for catalyst carrier.
It should be noted that second of hanging ceramic slurry of the viscosity ratio of first time hanging ceramic slurry is low, hang for the first time
The viscosity for starching ceramic slurry is low in order to which slurry enters in the hole of polyurethane foam, hangs up one layer on the surface of polyurethane foam
Very thin slurry.The viscosity height of second of hanging ceramic slurry is to adhere to more slurries on primary pulp hanging foam.
It should be noted that preparing the ball milling of first time hanging ceramic slurry and second of hanging ceramic slurry in step 1
Time is 3-4h.
It should be noted that the polyurethane foam is previously dried processing in step 2, by the polyurethane foam
In 80 DEG C of dry 4h.Drying is to remove moisture, and the polyurethane foam after drying is easier hanging.
It should be noted that in step 2, the polyurethane foam can be by resistance wire cutting machine by the polyurethane foam
Foam cuts into required shapes and sizes.
It should be noted that in step 2, it is specially to dip in that polyurethane foam, which is dipped the first time hanging ceramic slurry,
It takes the polyurethane foam of first time hanging ceramic slurry constantly to squeeze and it is allowed to be fully extended, makes thin on the skeleton of polyurethane foam
The thin first time hanging ceramic slurry being covered with.
It should be noted that the temperature of the dry solidification of a foamed ceramics precast body is 80 DEG C in step 2, when
Between be 2-4h, cooled to room temperature obtains primary pulp hanging foam.
It should be noted that by the upper and lower surface of the primary pulp hanging foam, uniformly coating is hung for the second time respectively in step 3
Ceramic slurry is starched, is placed in squeeze on roll-in machine platform and removes extra slurry, repeatedly, make uniformly to fill on the hole muscle of polyurethane foam
Divide attachment second of hanging ceramic slurry.
It should be noted that the temperature of the dry solidification of the secondary foam ceramics preparative body is 80 DEG C in step 3, when
Between be 6h, cooled to room temperature obtains secondary hanging foam.
It should be noted that in step 4, first sintering is specially to be warming up to 600- with 1 DEG C of the rate of heating up per minute
It 700 DEG C, is sintered 60-90 minutes.At 600-700 DEG C, organic polymer burning volatilization, forms foam bone in secondary hanging foam
Frame, while hole muscle can be also volatilized out in the pore creating material that green body occupies certain space to make to form stomata on the muscle of hole.
It should be noted that second of sintering is specially to be warming up to 1400-1600 with 5 DEG C of rate per minute in step 4
DEG C, it is sintered 120 minutes, so that slurry densified sintering product is obtained mechanical strength, finally obtain having on the muscle of hole with furnace cooled to room temperature
The preparation method of stomata and the foamed ceramics for catalyst carrier with certain mechanical strength.
It should be noted that the ceramic powder is the ceramic powder containing sintering aid.
Preferably, the pore creating material is selected from organic pore-forming agents or/and inorganic pore creating material.
Preferably, the organic pore-forming agents are selected from one of PIMA microballoon, starch and PS microballoon or a variety of.PIMA is micro-
Ball is copolymer of isoprene and methacrylic acid microballoon, and PS microballoon is polystyrene microsphere.
Preferably, the inorganic pore creating material is selected from one or both of ammonium carbonate and calcium carbonate.
Preferably, the ceramic powder is selected from alumina powder or/and carborundum powder.
Preferably, the dispersing agent is selected from carboxymethyl cellulose or other can be in first time hanging ceramic slurry and the
Secondary hanging ceramic slurry plays the dispersing agent of peptizaiton.
Preferably, the weight ratio of first part of binder and the first time preceramic slurry is 0.5:100；It is described
The weight ratio of second part of binder and second of preceramic slurry is 0.8:100.
Preferably, the polyurethane foam is the polyurethane foam of 30-60PPI.
Preferably, the first time hanging ceramic slurry includes: first time preceramic slurry and first part of binder；Institute
State first time preceramic slurry include: the ceramic powder of 200g-400g, the dispersing agent of 0.1-0.3g, 10-40g pore creating material and
The water of 60g-120g；Wherein, the weight ratio of first part of binder and the first time preceramic slurry is 0.5:100；
Second of hanging ceramic slurry includes: second of preceramic slurry and second part of binder；Described second
Preceramic slurry includes: the pore creating material and 60g-120g of the ceramic powder of 200g-400g, the dispersing agent of 0.1-0.3g, 10-40g
Water；Wherein, the weight ratio of second part of binder and second of preceramic slurry is 0.8:100.
The invention discloses a kind of foamed ceramicses for catalyst carrier, are prepared including the preparation method.
The invention also discloses the preparation method preparation for catalyst carrier foamed ceramics or it is described be used for urge
Application of the foam pottery of agent carrier in load ferronickel copper sheet shape catalyst.
The present invention also provides one kind with foamed ceramics for carrier loaded ferronickel copper sheet catalyst, the forerunner of the catalyst
Object: Nickelous nitrate hexahydrate, Fe(NO3)39H2O, Gerhardite, urea and ammonium fluoride.With foamed ceramics for carrier loaded nickel
The step of iron copper sheet catalyst, is as follows:
Step 1: preparing the aqueous solution Nickelous nitrate hexahydrate of predecessor, Fe(NO3)39H2O, Gerhardite, fluorination
Ammonium and urea are dissolved in deionized water, stir uniform predecessor aqueous solution；
Step 2: the foamed ceramics for being used for catalyst carrier of the invention is placed in hydro-thermal together with the aqueous solution of predecessor
In kettle, after hydro-thermal reaction, then washed and dry, the ferronickel copper hydroxide for being supported on foamed ceramics surface is obtained, obtains the
One product；
Step 3: first product becomes oxide through calcined oxide, the second product is obtained；
Step 4: second product is handled through hydrogen reducing, the ferronickel copper sheet catalyst of foamed ceramics load is obtained.
Preferably, the size shape of the foamed ceramics for catalyst carrier of the invention is prepared as needed.
Preferably, in step 1, the whipping temp of the aqueous solution preparation of the predecessor is 20-25 DEG C, the stirring
Revolving speed is 300-500r/min, and the time of the stirring is 5-20min.
Preferably, in step 2, the temperature of the hydro-thermal reaction is 120-160 DEG C, and the time of the hydro-thermal reaction is 14-
16h。
Preferably, in step 3, the temperature of the calcined oxide is 500-700 DEG C, and the time of the calcined oxide is 2h.
Preferably, in step 4, the temperature of the reduction treatment is 600-800 DEG C, and the time of the reduction treatment is 2h.
The purpose of the present invention is for the small technology low with porosity of specific surface area existing for catalyst carrier in the prior art
Defect.Foamed ceramics of the invention can improve the porosity of foamed ceramics by adding pore creating material in dipping sizing agent, subsequent
Sintering process in, the pore creating material of low ignition point is sintered vaporization and leaves matrix, to form certain stomata in the base, in turn
Improve the specific surface area of foamed ceramics.Have on the hole muscle of foamed ceramics disclosed by the invention for catalyst carrier abundant
Stomata, increase foamed ceramics of the invention specific surface area and high geometrical surface, also increase foamed ceramics of the invention
Porosity (85-90%), so that its pressure drop is low (cube of pressure drop and porosity is inversely proportional), simultaneously as foamed ceramics has
There is stomata abundant on macroscopic macropore and hole muscle to greatly increase the convective heat transfer performance of foamed ceramics of the present invention；This
Outside, foamed ceramics of the invention is good, high temperature resistant, resistant to chemical etching, good mechanical strength with thermal shock resistance.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described.
Fig. 1 shows the SEM figure of foamed ceramics prepared by the embodiment of the present invention 1, wherein A is the SEM figure before amplification, and B is amplification
SEM figure afterwards；
Fig. 2 shows the SEM figure of foamed ceramics load ferronickel copper sheet shape catalyst prepared by the embodiment of the present invention 1；
Fig. 3 shows the SEM figure of foamed ceramics prepared by comparative example 1 of the present invention, wherein A is the SEM figure before amplification, and B is amplification
SEM figure afterwards.
Specific embodiment
The foamed ceramics and its preparation method and application that the present invention provides a kind of for catalyst carrier, it is existing for solving
With the presence of the small technological deficiency low with porosity of catalyst carrier specific surface area in technology.
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Wherein, it is commercially available or self-control that following embodiment is raw materials used, ceramic powder (alumina powder used in following embodiment
Or carborundum powder) containing sintering aid, the purchase of alumina powder used in following embodiment is from Zhengzhou Yu Fa abrasive material Co., Ltd, and 20
Alumina powder is used in micron and 1 micron of mixing；The purchase of carborundum powder used in following embodiment is limited from the prosperous brilliant grinding materials and grinding tool in Foshan
Carborundum powder is used in company, 20 microns and 1 micron mixing.
Embodiment 1
The embodiment of the invention provides preparation 40PPI Alumina Foam Ceramics to load ferronickel copper sheet shape catalyst, specific to walk
It is rapid as follows:
(1) rectangular shape needed for 40PPI polyurethane foam is cut into experiment by resistance wire cutting machine, is put into 80 in baking oven
DEG C dry 4h；
(2) alumina powder that 300g contains sintering aid being weighed simultaneously, the mixing of 90g deionized water being added, 0.2g is then added
The PIMA microballoon of carboxymethyl cellulose and 20g, ball milling 4h obtain mixing sufficient slurry, and the slurry that ball milling obtains is sieved
To first time preceramic slurry, the first time preceramic slurry for weighing 100g is added 0.5g binder (PVA) and stirs evenly, makes
Obtain first time hanging ceramic slurry.The first time hanging ceramic slurry that dry polyurethane foam is dipped, is gone using roll squeezer
Except the additional size in polyurethane foam, repeatedly, make to be covered with one layer of very thin first time hanging ceramic slurry on foam framework
Material, obtains a foamed ceramics precast body, puts it into drying box, curing and drying, and temperature is 80 DEG C, time 3h, natural
It is cooled to room temperature to obtain primary pulp hanging foam made of primary pulp hanging；
(3) prepare second of hanging ceramic slurry: weighing the alumina powder that 300g contains sintering aid, be added 90g go from
Sub- water mixing, is then added 0.2g carboxymethyl cellulose and 20gPIMA microballoon, ball milling 4h obtains mixing sufficient slurry, ball milling
The slurry of acquisition obtains second of preceramic slurry by sieving, and 0.8g bonding is added in second of preceramic slurry for weighing 100g
Agent (PVA) simultaneously stirs evenly, and obtains second of hanging ceramic slurry, and by primary pulp hanging foam upper and lower surface, uniformly coating is big respectively
Second of hanging ceramic slurry of amount is placed in squeeze on roll-in machine platform and removes extra slurry, repeatedly, make primary pulp hanging foam
Hole muscle on uniform abundant second of hanging ceramic slurry of attachment, after place it in drying box dry, temperature is 80 DEG C,
Time is 6h, naturally cools to room temperature, obtains secondary hanging foam；
(4) secondary hanging foam is placed in Muffle furnace, is warming up to 600 DEG C with 1 DEG C of the rate of heating up per minute, heat preservation 60
Minute, high temperature dumping removes polyurethane, binder, carboxymethyl cellulose and PIMA microballoon, then with 5 DEG C per minute of rate liter
Temperature keeps the temperature 120 minutes, obtains the foamed ceramics for catalyst carrier of 40PPI, shape is cuboid to 1600 DEG C；
(4) precursor solution is prepared: Nickelous nitrate hexahydrate, Fe(NO3)39H2O, Gerhardite, ammonium fluoride and urine
Element is dissolved in deionized water, obtains uniform precursor solution at room temperature with 500r/min revolving speed stirring 5min；
(5) foamed ceramics for being used for catalyst carrier and precursor solution prepared by step 4 are placed in water heating kettle, are passed through
120 DEG C, after 16h hydro-thermal reaction, washing and dry is taken out, the ferronickel copper hydroxide for being supported on the yellow on foamed ceramics surface is obtained
Then object calcines 2h at 500 DEG C, form oxide, color is rufous；Finally under the conditions of atmosphere of hydrogen, 600 DEG C, also
It manages 2h and loads ferronickel copper sheet shape catalyst to get to 40PPI Alumina Foam Ceramics in original place.
The foamed ceramics and 40PPI Alumina Foam Ceramics for catalyst carrier of the 40PPI of the present embodiment is loaded
Ferronickel copper sheet catalyst carries out electron-microscope scanning, and as depicted in figs. 1 and 2, the B of Fig. 1 shows the hole of the foamed ceramics of the present embodiment
The stomata that aperture is 5um or so is generated on muscle；Fig. 2, which is shown, forms ferronickel copper sheet catalyst, and uniform load by hydro-thermal method
On foamed ceramics.
Embodiment 2
The embodiment of the invention provides preparation 60PPI Alumina Foam Ceramics to load ferronickel copper sheet shape catalyst, specific to walk
It is rapid as follows:
(1) cylindrical body needed for 60PPI polyurethane foam is cut into experiment by resistance wire cutting machine is put into baking oven and does for 80 DEG C
Dry 4h；
(2) alumina powder that 400g contains sintering aid is weighed simultaneously, the mixing of 120g deionized water is added, be then added
The PIMA microballoon of 0.3g carboxymethyl cellulose and 30g, ball milling 4h obtain mixing sufficient slurry, and the slurry that ball milling obtains passed through
Sieve obtains first time preceramic slurry, and the first time preceramic slurry for weighing 100g is added 0.5g binder (PVA) and stirs equal
It is even, first time hanging ceramic slurry is made.Polyurethane foam after taking out drying dips first time hanging ceramic slurry, utilizes roller
Additional size in press removal polyurethane foam repeatedly makes to be covered with one layer of very thin first time hanging on foam framework
Ceramic slurry obtains a foamed ceramics precast body, puts it into drying box, curing and drying, and temperature is 80 DEG C, and the time is
3h, cooled to room temperature obtain primary pulp hanging foam made of primary pulp hanging；
(3) prepare second of hanging ceramic slurry: weighing the alumina powder that 400g contains sintering aid, be added 120g go from
Sub- water mixing, is then added 0.3g carboxymethyl cellulose and 30gPIMA microballoon, ball milling 4h obtains mixing sufficient slurry, ball milling
The slurry of acquisition obtains second of preceramic slurry by sieving, and 0.8g bonding is added in second of preceramic slurry for weighing 100g
Agent (PVA) simultaneously stirs evenly, and obtains second of hanging ceramic slurry, and by primary pulp hanging foam upper and lower surface, uniformly coating is big respectively
Second of hanging ceramic slurry of amount is placed in squeeze on roll-in machine platform and removes extra slurry, repeatedly, make primary pulp hanging foam
Hole muscle on uniform abundant second of hanging ceramic slurry of attachment, after place it in drying box dry, temperature is 80 DEG C,
Time is 6h, naturally cools to room temperature, obtains secondary hanging foam；
(4) secondary hanging foam is placed in Muffle furnace, is warming up to 600 DEG C with 1 DEG C of the rate of heating up per minute, heat preservation 90
Minute, high temperature dumping removes polyurethane, binder, carboxymethyl cellulose and PIMA microballoon, then with 5 DEG C per minute of rate liter
Temperature keeps the temperature 120 minutes, obtains the foamed ceramics for catalyst carrier of 60PPI, shape is cylindrical body to 1500 DEG C；
(5) precursor solution is prepared: Nickelous nitrate hexahydrate, Fe(NO3)39H2O, Gerhardite, ammonium fluoride and urine
Element is dissolved in deionized water, obtains uniform precursor solution at room temperature with 400r/min revolving speed stirring 10min；
(6) foamed ceramics for being used for catalyst carrier and precursor solution prepared by step 4 are placed in water heating kettle, are passed through
160 DEG C, after 14h hydro-thermal reaction, washing and dry is taken out, the ferronickel copper hydroxide for being supported on the yellow on foamed ceramics surface is obtained
Then object calcines 2h at 700 DEG C, form oxide, color is rufous；Finally under the conditions of atmosphere of hydrogen, 800 DEG C, also
It manages 2h and loads ferronickel copper sheet shape catalyst to get to 60PPI Alumina Foam Ceramics in original place.
Embodiment 3
The embodiment of the invention provides preparation 30PPI foam silicon carbide ceramics to load ferronickel copper sheet shape catalyst, specific to walk
It is rapid as follows:
(1) rectangular shape needed for 30PPI polyurethane foam is cut into experiment by resistance wire cutting machine, is put into 80 in baking oven
DEG C dry 4h；
(2) carborundum powder that 400g contains sintering aid is weighed simultaneously, the mixing of 120g deionized water is added, be then added
The PIMA microballoon of 0.1g carboxymethyl cellulose and 20g, ball milling 4h obtain mixing sufficient slurry, and the slurry that ball milling obtains passed through
Sieve obtains first time preceramic slurry, and the first time preceramic slurry for weighing 100g is added 0.5g binder (PVA) and stirs equal
It is even, first time hanging ceramic slurry is made.Polyurethane foam after taking out drying dips a small amount of first time hanging ceramic slurry,
Using the additional size in roll squeezer removal polyurethane foam, repeatedly, make to be covered on foam framework very thin a thin layer of
Slurry, obtain a foamed ceramics precast body, put it into drying box, curing and drying, temperature be 80 DEG C, time 4h,
Cooled to room temperature obtains primary pulp hanging foam made of primary pulp hanging；
(3) prepare second of hanging ceramic slurry, weigh the alumina powder that 400g contains sintering aid, be added 120g go from
Sub- water mixing, is then added 0.1g carboxymethyl cellulose and 20gPIMA microballoon, ball milling 4h obtains mixing sufficient slurry, ball milling
The slurry of acquisition obtains second of preceramic slurry by sieving, and 0.8g bonding is added in second of preceramic slurry for weighing 100g
Agent (PVA) simultaneously stirs evenly, and obtains second of hanging ceramic slurry, the uniformly coating respectively by the upper and lower surface of primary pulp hanging foam
A large amount of second of hanging ceramic slurry is placed in squeeze on roll-in machine platform and goes extra slurry, repeatedly, steep primary pulp hanging
Uniform abundant second of hanging ceramic slurry of attachment on the hole muscle of foam, after place it in drying box dry, temperature 80
DEG C, time 6h naturally cools to room temperature, obtains secondary hanging foam；
(4) secondary hanging foam is placed in Muffle furnace, is warming up to 600 DEG C with 1 DEG C of the rate of heating up per minute, heat preservation 60
Minute, high temperature dumping removes polyurethane, binder, carboxymethyl cellulose and PIMA microballoon, then with 5 DEG C per minute of rate liter
Temperature keeps the temperature 120 minutes, obtains the foamed ceramics for catalyst carrier of 30PPI, shape is cuboid to 1400 DEG C；
(5) precursor solution is prepared: Nickelous nitrate hexahydrate, Fe(NO3)39H2O, Gerhardite, ammonium fluoride and urine
Element is dissolved in deionized water, obtains uniform precursor solution at room temperature with 300r/min revolving speed stirring 20min；
(6) foamed ceramics for being used for catalyst carrier and precursor solution prepared by step 4 are placed in water heating kettle, are passed through
140 DEG C, after 15h hydro-thermal reaction, washing and dry is taken out, the ferronickel copper hydroxide for being supported on the yellow on foamed ceramics surface is obtained
Then object calcines 2h at 600 DEG C, form oxide, color is rufous；Finally under the conditions of atmosphere of hydrogen, 700 DEG C, also
It manages 2h and loads ferronickel copper sheet shape catalyst to get to 30PPI foam silicon carbide ceramics in original place.
Foamed ceramics and 60PPI Alumina Foam Ceramics for catalyst carrier prepared by embodiment 2 loads ferronickel copper
The foamed ceramics and 30PPI foam silicon carbide ceramics for catalyst carrier of the preparation of sheet catalyst and embodiment 3 are negative
The experimental result such as embodiment 1 for carrying ferronickel copper sheet catalyst is similar.
Comparative example 1
Comparative example of the present invention provides a kind of preparation method of control group, the preparation method is as follows:
(1) rectangular shape needed for 40PPI polyurethane foam is cut into experiment by resistance wire cutting machine, is put into 80 in baking oven
DEG C dry 4h；
(2) alumina powder that 300g contains sintering aid being weighed simultaneously, the mixing of 90g deionized water being added, 0.2g is then added
Carboxymethyl cellulose, ball milling 4h obtain mixing sufficient slurry, and the slurry that ball milling obtains obtains first time preceramic by sieving
Slurry, the first time preceramic slurry for weighing 100g are added 0.5g binder (PVA) and stir evenly, and first time hanging pottery is made
Porcelain slurry.The first time hanging ceramic slurry that dry polyurethane foam is dipped, using in roll squeezer removal polyurethane foam
Additional size repeatedly make to be covered with one layer of very thin first time hanging ceramic slurry on foam framework, obtain a foam
Ceramics preparative body, puts it into drying box, curing and drying, and temperature is 80 DEG C, and time 3h, cooled to room temperature obtains one
Primary pulp hanging foam made of secondary hanging；
(3) prepare second of hanging ceramic slurry: weighing the alumina powder that 300g contains sintering aid, be added 90g go from
Then 0.2g carboxymethyl cellulose is added in sub- water mixing, ball milling 4h obtains mixing sufficient slurry, and the slurry that ball milling obtains passes through
Sieving obtains second of preceramic slurry, and second of preceramic slurry for weighing 100g is added 0.8g binder (PVA) and stirs
Uniformly, second of hanging ceramic slurry is obtained, uniformly coating is a large amount of respectively by primary pulp hanging foam upper and lower surface hangs for the second time
Ceramic slurry is starched, is placed in squeeze on roll-in machine platform and removes extra slurry, repeatedly, is made on the hole muscle of primary pulp hanging foam uniformly
Sufficiently second of hanging ceramic slurry of attachment, after place it in drying box dry, temperature is 80 DEG C, time 6h, from
It so is cooled to room temperature, obtains secondary hanging foam；
(4) secondary hanging foam is placed in Muffle furnace, is warming up to 600 DEG C with 1 DEG C of the rate of heating up per minute, heat preservation 60
Minute, high temperature dumping removes polyurethane, binder, carboxymethyl cellulose and PIMA microballoon, then with 5 DEG C per minute of rate liter
Temperature keeps the temperature 120 minutes, obtains the foamed ceramics of 40PPI, shape is cuboid to 1600 DEG C；
The result of this comparative example as shown in figure 3, the SEM with embodiment 1 schemes to compare, the foamed ceramics of this comparative example preparation
It combines closely between crystal grain on the muscle of hole, does not generate stomata.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of preparation method of the foamed ceramics for catalyst carrier, which comprises the following steps:
Step 1, preparation first time hanging ceramic slurry, comprising: first time preceramic slurry and first part of binder；Described first
Secondary preceramic slurry includes ceramic powder, dispersing agent, pore creating material and water；Ceramic powder, dispersing agent, pore creating material and water progress ball milling are mixed
It closes, obtains first time preceramic slurry after separating abrading-ball, the first time preceramic slurry and first part of binder are mixed
Conjunction obtains first time hanging ceramic slurry；
Prepare second of hanging ceramic slurry, comprising: second of preceramic slurry and second part of binder；Second of pre- pottery
Porcelain slurry includes: ceramic powder, dispersing agent, pore creating material and water；Ceramic powder, dispersing agent, pore creating material and water are subjected to ball milling mixing, point
From second of preceramic slurry is obtained after abrading-ball, second of preceramic slurry and second part of binder are mixed to get
Second of hanging ceramic slurry；
Polyurethane foam is dipped the first time hanging ceramic slurry by step 2, is removed extra in the polyurethane foam
After primary pulp hanging ceramic slurry, a foamed ceramics precast body is obtained, it is cold by the foamed ceramics precast body dry solidification
But primary pulp hanging foam is obtained；
Step 3, by second of hanging ceramic slurry described in the primary pulp hanging foam-coating, remove on the primary pulp hanging foam
After second extra of hanging ceramic slurry, secondary foam ceramics preparative body is obtained, the foamed ceramics precast body is dry, it is cold
But secondary hanging foam is obtained；
Step 4, by the secondary hanging foam after 600-700 DEG C of progress first sintering, first sintering in 1400-
It 1600 DEG C, carries out second and is sintered, obtain the foamed ceramics for catalyst carrier.
2. preparation method according to claim 1, which is characterized in that the pore creating material is selected from organic pore-forming agents or/and nothing
Machine pore creating material.
3. preparation method according to claim 2, which is characterized in that the organic pore-forming agents are selected from PIMA microballoon, starch
With one of PS microballoon or a variety of.
4. preparation method according to claim 2, which is characterized in that the inorganic pore creating material is selected from ammonium carbonate and calcium carbonate
One or both of.
5. preparation method according to claim 1, which is characterized in that the ceramic powder is selected from alumina powder or/and carbonization
Silicon powder, the dispersing agent are selected from carboxymethyl cellulose.
6. preparation method according to claim 1, which is characterized in that first part of binder is made pottery in advance with the first time
The weight ratio of porcelain slurry is 0.5:100；The weight ratio of second part of binder and second of preceramic slurry is 0.8:
100。
7. preparation method according to claim 1, which is characterized in that the polyurethane foam is the polyurethane of 30-60PPI
Foam.
8. preparation method according to claim 1, which is characterized in that
The first time hanging ceramic slurry includes: first time preceramic slurry and first part of binder；The first time makes pottery in advance
Porcelain slurry includes: the water of the ceramic powder of 200g-400g, the dispersing agent of 0.1-0.3g, the pore creating material of 10-40g and 60g-120g；Its
In, the weight ratio of first part of binder and the first time preceramic slurry is 0.5:100；
Second of hanging ceramic slurry includes: second of preceramic slurry and second part of binder；Second of pre- pottery
Porcelain slurry includes: the water of the ceramic powder of 200g-400g, the dispersing agent of 0.1-0.3g, the pore creating material of 10-40g and 60g-120g；Its
In, the weight ratio of second part of binder and second of preceramic slurry is 0.8:100.
9. a kind of foamed ceramics for catalyst carrier, which is characterized in that including as described in claim 1-8 any one
Preparation method is prepared.
10. the foamed ceramics or right for catalyst carrier of the preparation of preparation method described in claim 1-8 any one
It is required that application of the foam pottery described in 9 for catalyst carrier in load ferronickel copper sheet shape catalyst.
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| CN111925229A (en) * | 2020-07-12 | 2020-11-13 | 西北工业大学 | Method for preparing high-performance foamed ceramic by combining template method with chemical vapor infiltration method |
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| CN114409429A (en) * | 2021-12-30 | 2022-04-29 | 三祥新材股份有限公司 | Preparation method of titanium-based foamed ceramic |
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| CN114890677A (en) * | 2022-01-20 | 2022-08-12 | 深圳麦克韦尔科技有限公司 | Preparation method of porous heating base material |
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| CN115282973A (en) * | 2022-08-11 | 2022-11-04 | 中国科学院上海高等研究院 | 3D printing-based monolithic catalyst, preparation method and application |
| CN115739162A (en) * | 2022-12-15 | 2023-03-07 | 郑州大学 | Copper-iron bimetal composite carbon nitride Fenton catalyst and preparation method and application thereof |
| CN115739162B (en) * | 2022-12-15 | 2024-01-26 | 郑州大学 | Copper-iron bimetal composite carbon nitride Fenton catalyst and preparation method and application thereof |
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