CN108786839A - A kind of preparation method of metallic carrier for catalyst - Google Patents
A kind of preparation method of metallic carrier for catalyst Download PDFInfo
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- CN108786839A CN108786839A CN201810047360.5A CN201810047360A CN108786839A CN 108786839 A CN108786839 A CN 108786839A CN 201810047360 A CN201810047360 A CN 201810047360A CN 108786839 A CN108786839 A CN 108786839A
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- 239000003054 catalyst Substances 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 238000000576 coating method Methods 0.000 claims abstract description 66
- 239000011248 coating agent Substances 0.000 claims abstract description 63
- 239000000956 alloy Substances 0.000 claims abstract description 46
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 46
- 238000001035 drying Methods 0.000 claims abstract description 22
- 238000012545 processing Methods 0.000 claims abstract description 18
- 239000007921 spray Substances 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 238000011017 operating method Methods 0.000 claims abstract description 7
- 239000004094 surface-active agent Substances 0.000 claims description 24
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000006255 coating slurry Substances 0.000 claims description 9
- OBETXYAYXDNJHR-SSDOTTSWSA-M (2r)-2-ethylhexanoate Chemical compound CCCC[C@@H](CC)C([O-])=O OBETXYAYXDNJHR-SSDOTTSWSA-M 0.000 claims description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 6
- OBETXYAYXDNJHR-UHFFFAOYSA-N alpha-ethylcaproic acid Natural products CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052791 calcium Inorganic materials 0.000 claims description 6
- 239000011575 calcium Substances 0.000 claims description 6
- 229910017604 nitric acid Inorganic materials 0.000 claims description 6
- IUGYQRQAERSCNH-UHFFFAOYSA-N pivalic acid Chemical compound CC(C)(C)C(O)=O IUGYQRQAERSCNH-UHFFFAOYSA-N 0.000 claims description 6
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 claims description 5
- 150000008065 acid anhydrides Chemical class 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 5
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 239000000839 emulsion Substances 0.000 claims description 5
- FYDKNKUEBJQCCN-UHFFFAOYSA-N lanthanum(3+);trinitrate Chemical compound [La+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O FYDKNKUEBJQCCN-UHFFFAOYSA-N 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 229910003158 γ-Al2O3 Inorganic materials 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 3
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 3
- 150000003467 sulfuric acid derivatives Chemical class 0.000 claims description 3
- 238000009736 wetting Methods 0.000 claims description 2
- 229910052788 barium Inorganic materials 0.000 claims 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 15
- 238000012360 testing method Methods 0.000 description 11
- IWOUKMZUPDVPGQ-UHFFFAOYSA-N barium nitrate Chemical compound [Ba+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O IWOUKMZUPDVPGQ-UHFFFAOYSA-N 0.000 description 8
- 238000001354 calcination Methods 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 3
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005524 ceramic coating Methods 0.000 description 2
- 229960002887 deanol Drugs 0.000 description 2
- 239000012972 dimethylethanolamine Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- 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
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8898—Manganese, technetium or rhenium containing also molybdenum
-
- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
- B01J31/34—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of chromium, molybdenum or tungsten
-
- 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
-
- 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
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
Abstract
The present invention discloses a kind of preparation method of metallic carrier for catalyst, including following operating procedure：（1）Select alloy sheet；（2）Alloy sheet is put into soak and is impregnated；（3）By step（2）The alloy sheet surface of processing uniformly sprays coating；（4）After alloy sheet surface after the drying prepares active coating, after cooling, the metallic carrier for catalyst is obtained.It using metallic carrier produced by the present invention, is remained without organic coating between active coating and alloy sheet, solves the problems, such as active coating during heated since thermal expansion stress mismatch causes active coating to be easy to fall off.
Description
Technical field
The invention belongs to catalyst carrier preparing technical fields, and in particular to a kind of preparation side of metallic carrier for catalyst
Method.
Background technology
The many hazards of automobile exhaust pollution have caused the great attention of countries in the world.In order to control and administer vehicle exhaust
Pollution, various countries have formulated stringent emission regulation and implementation.Stringent emission regulation carries catalyst carrier for purifying vehicle tail gas
Go out that high mechanical properties, good high high-temp stability and heat conductivity, low thermal coefficient of expansion and low back pressure etc. are higher to be wanted
It asks.
Compared with traditional carrier cordierite ceramic, metallic carrier has the advantages that ceramic monolith is incomparable：Due to gold
Belong to the machinability of carrier, carrier wall thickness can be as thin as 0.04mm, considerably increase gas by effective area, urged to reduce
The back pressure for changing clarifier advantageously reduces engine power loss；Metallic carrier has larger surface area, in identical purifying property
In the case of the active component that uses it is less, noble metal can be saved；Metallic carrier has good heat conductivity and lower thermal capacitance,
Be conducive to catalyst and quickly play work, while catalysis reaction heat can be discharged in time and avoid hot-spot, this is in tightened up work
Under condition advantage and potentiality are had more than ceramic monolith；The shock resistance of metallic carrier is good, is not easy embrittlement, has widely than ceramic monolith
Applicability and service life.
But there are also disadvantages for metallic carrier：Since active coating is different with the coefficient of thermal expansion of metallic matrix, make work
Property coating loosely be attached to Metal Substrate stop on.Cause the adhesive force between ceramic coating and metallic matrix inadequate, to make work
Property coating is easy to fall off.
In order to solve the problems, such as this, in the prior art, the organic coating of layer is first coated on metallic matrix, is then pressed
The method coated ceramic layer and progress subsequent step of more solito.By to the removal of organic coating, making metal at relatively high temperatures
The gap that suitable thickness is formed between matrix and ceramic coating, to make to reach a kind of unstress state therebetween, and disappears
Thermal expansion in removing coating mismatches stress.
But in actual production process, since the adhesion strength of organic coating is stronger, after high-temperature process, according to
More organic coating is so had to be attached on metallic matrix or even some organic coatings and the activity glass coating for preparing later
It is bonded together, active coating is caused to be more easy to fall off during use.
Invention content
To solve the above-mentioned problems, the present invention provides a kind of preparation method of metallic carrier for catalyst.
The present invention is achieved by the following technical solutions.
A kind of preparation method of metallic carrier for catalyst, including following operating procedure：
（1）Select thickness for the alloy sheet of 0.03-0.05mm thickness；
（2）Alloy sheet is put into soak and impregnates 20-25min, wherein soak is made of the component of following parts by weight：Second
11-16 parts of acid anhydrides, 1-5 parts of pivalic acid, 2-4 parts of surfactant, 160-200 parts of water；
（3）By step（2）The alloy sheet surface of processing uniformly sprays coating, and drying and processing 2-3 is small in 70-80 DEG C
When, wherein coating is made of the component of following parts by weight：75-88 parts of acrylic emulsion, 6-9 parts of propylene glycol phenylate, 1,9- nonyls two
1-3 parts of mercaptan, N, 4-7 parts of N- dimethylethanolamines, 2-5 parts of trichorotrifluoroethane, 1-2 parts of 2 ethyl hexanoic acid calcium, wetting levelling
1-2 parts of agent；
（4）After alloy sheet surface after the drying prepares active coating, after cooling, the metallic carrier for catalyst is obtained.
Specifically, in above-mentioned alloy sheet, the mass fraction of each ingredient is：Fe 40-50%,Ni 25-28%,Cr 15-
18%, Mn 1-3%, Mo 0.5-0.8%, surplus Si.
Specifically, above-mentioned steps（2）In surfactant be quaternary ammonium salts surfactant, Sulfates surface-active
Any one in agent, sulfonate surfactant.
Specifically, above-mentioned steps（2）In surfactant be nonionic class surfactant.
Specifically, above-mentioned steps（3）Middle moistening flatting agent is any one in NP-10, H-875, H-436, H-140.
Specifically, above-mentioned steps（3）The pressure of spray tip is 0.2Mpa, spray distance 250mm when middle coating spraying.
Specifically, above-mentioned steps（4）The preparation method of middle active coating is：By weight, by γ-Al2O340 parts of powder,
2 parts of lanthanum nitrate, 1 part of cerous nitrate, 1 part of barium nitrate after mixing, are added into 500 parts of deionized water, using 450r/min
Rotating speed persistently stir 30min after, then nitric acid is added thereto, the pH value for adjusting mixed liquor is 5, and active coating slurry is made,
Alloy sheet after drying is put into active coating slurry, after standing 7min, is taken out, after 200 DEG C of drying and processing 20min, is turned
Enter after calcining 8min in 600 DEG C of high temperature furnace, after taking out cooling, obtains the metallic carrier for catalyst.
From the above technical scheme, it can be seen that the beneficial effects of the invention are as follows：
After the present invention is by impregnating alloy sheet with soak, the roughness on alloy sheet surface can be effectively promoted, it can one
Determine reduction coating in degree and alloy sheet adhesion strength, while remaining in the acetic anhydride of metal surface when encountering high temperature, it can
Hydrolysis generates acetic acid, and acetic acid can generate coating certain desorption, is conducive to the removal of coating, remaining pivalic acid and surface
Activating agent can reduce the adhesion strength of organic coating and alloy sheet；Coating provided by the invention, is easy to point in the high temperature environment
It solves, and after N, N- dimethylethanolamine and trichorotrifluoroethane synergistic effect, paint coatings can be reduced and lived with obtained later
Property coating between adhesion strength so that paint coatings will not be adhered in active coating so that alloy sheet and active coating it
Between form uniform gap, effectively eliminate thermal expansion in coating and mismatch stress so that coating is not easily to fall off；Coating decomposes
Remaining 2 ethyl hexanoic acid calcium afterwards, can be to a certain extent avoid alloy sheet from corroding, it is therefore prevented that the corrosion of alloy sheet
Effect causes falling off for active coating.
Specific implementation mode
Following embodiment cannot be used for limiting the scope of the invention for illustrating the present invention.The reality used in embodiment
The condition of applying can be for further adjustments according to the condition of producer, and unaccounted implementation condition is usually conventional laboratory conditions.
Embodiment 1
A kind of preparation method of metallic carrier for catalyst, including following operating procedure：
（1）Select thickness for the alloy sheet of 0.04mm thickness；
（2）Alloy sheet is put into soak and impregnates 20min, wherein soak is made of the component of following parts by weight：Acetic acid
11 parts of acid anhydride, 1 part of pivalic acid, 2 parts of surfactant, 160 parts of water；
（3）By step（2）The alloy sheet surface of processing uniformly sprays coating, drying and processing 2 hours in 70 DEG C, wherein
Coating is made of the component of following parts by weight：75 parts of acrylic emulsion, 6 parts of propylene glycol phenylate, 1 part of two mercaptan of 1,9- nonyls, N, N-
4 parts of dimethylethanolamine, 2 parts of trichorotrifluoroethane, 1 part of 2 ethyl hexanoic acid calcium, 1 part of moistening flatting agent；
（4）After alloy sheet surface after the drying prepares active coating, after cooling, the metallic carrier for catalyst is obtained.
Specifically, above-mentioned steps（2）In surfactant be quaternary ammonium salts surfactant.
Specifically, above-mentioned steps（3）Middle moistening flatting agent is NP-10.
Specifically, above-mentioned steps（3）The pressure of spray tip is 0.2Mpa, spray distance 250mm when middle coating spraying.
Specifically, above-mentioned steps（4）The preparation method of middle active coating is：By weight, by γ-Al2O340 parts of powder,
2 parts of lanthanum nitrate, 1 part of cerous nitrate, 1 part of barium nitrate after mixing, are added into 500 parts of deionized water, using 450r/min
Rotating speed persistently stir 30min after, then nitric acid is added thereto, the pH value for adjusting mixed liquor is 5, and active coating slurry is made,
Alloy sheet after drying is put into active coating slurry, after standing 7min, is taken out, after 200 DEG C of drying and processing 20min, is turned
Enter after calcining 8min in 600 DEG C of high temperature furnace, after taking out cooling, obtains the metallic carrier for catalyst.
Embodiment 2
A kind of preparation method of metallic carrier for catalyst, including following operating procedure：
（1）Select thickness for the alloy sheet of 0.04mm thickness；
（2）Alloy sheet is put into soak and impregnates 23min, wherein soak is made of the component of following parts by weight：Acetic acid
15 parts of acid anhydride, 3 parts of pivalic acid, 3 parts of surfactant, 180 parts of water；
（3）By step（2）The alloy sheet surface of processing uniformly sprays coating, drying and processing 2.5 hours in 75 DEG C,
Middle coating is made of the component of following parts by weight：80 parts of acrylic emulsion, 7 parts of propylene glycol phenylate, 2 parts of two mercaptan of 1,9- nonyls, N,
5 parts of N- dimethylethanolamines, 3 parts of trichorotrifluoroethane, 1 part of 2 ethyl hexanoic acid calcium, 1 part of moistening flatting agent；
（4）After alloy sheet surface after the drying prepares active coating, after cooling, the metallic carrier for catalyst is obtained.
Specifically, above-mentioned steps（2）In surfactant be Sulfates surfactant.
Specifically, above-mentioned steps（3）Middle moistening flatting agent is H-875.
Specifically, above-mentioned steps（3）The pressure of spray tip is 0.2Mpa, spray distance 250mm when middle coating spraying.
Specifically, above-mentioned steps（4）The preparation method of middle active coating is：By weight, by γ-Al2O340 parts of powder,
2 parts of lanthanum nitrate, 1 part of cerous nitrate, 1 part of barium nitrate after mixing, are added into 500 parts of deionized water, using 450r/min
Rotating speed persistently stir 30min after, then nitric acid is added thereto, the pH value for adjusting mixed liquor is 5, and active coating slurry is made,
Alloy sheet after drying is put into active coating slurry, after standing 7min, is taken out, after 200 DEG C of drying and processing 20min, is turned
Enter after calcining 8min in 600 DEG C of high temperature furnace, after taking out cooling, obtains the metallic carrier for catalyst.
Embodiment 3
A kind of preparation method of metallic carrier for catalyst, including following operating procedure：
（1）Select thickness for the alloy sheet of 0.04mm thickness；
（2）Alloy sheet is put into soak and impregnates 25min, wherein soak is made of the component of following parts by weight：Acetic acid
16 parts of acid anhydride, 5 parts of pivalic acid, 4 parts of surfactant, 200 parts of water；
（3）By step（2）The alloy sheet surface of processing uniformly sprays coating, drying and processing 3 hours in 80 DEG C, wherein
Coating is made of the component of following parts by weight：88 parts of acrylic emulsion, 9 parts of propylene glycol phenylate, 3 parts of two mercaptan of 1,9- nonyls, N, N-
7 parts of dimethylethanolamine, 5 parts of trichorotrifluoroethane, 2 parts of 2 ethyl hexanoic acid calcium, 2 parts of moistening flatting agent；
（4）After alloy sheet surface after the drying prepares active coating, after cooling, the metallic carrier for catalyst is obtained.
Specifically, above-mentioned steps（2）In surfactant be sulfonate surfactant.
Specifically, above-mentioned steps（2）In surfactant be nonionic class surfactant.
Specifically, above-mentioned steps（3）Middle moistening flatting agent is H-140.
Specifically, above-mentioned steps（3）The pressure of spray tip is 0.2Mpa, spray distance 250mm when middle coating spraying.
Specifically, above-mentioned steps（4）The preparation method of middle active coating is：By weight, by γ-Al2O340 parts of powder,
2 parts of lanthanum nitrate, 1 part of cerous nitrate, 1 part of barium nitrate after mixing, are added into 500 parts of deionized water, using 450r/min
Rotating speed persistently stir 30min after, then nitric acid is added thereto, the pH value for adjusting mixed liquor is 5, and active coating slurry is made,
Alloy sheet after drying is put into active coating slurry, after standing 7min, is taken out, after 200 DEG C of drying and processing 20min, is turned
Enter after calcining 8min in 600 DEG C of high temperature furnace, after taking out cooling, obtains the metallic carrier for catalyst.
Comparative example 1
Alloy sheet is without step（2）Processing, remaining preparation method are identical with embodiment 1.
Comparative example 2
Step（3）In coating be commercially available common using acrylic resin to have made from base-material
Machine coating, remaining operating method are identical with embodiment 2.
In order to verify the effect of the present invention, it is provided with following experiment：
Selection thickness is 0.04mm, and length and width are the alloy sheet 50 of 10cm, in alloy sheet, the mass fraction of each ingredient
For：Fe 50%, Ni 27%, Cr 16%, Mn 2%, Mo 0.8%, Si 4.2%, stochastic averagina are divided into 5 groups, every group 10, test group
1,2,3,4,5, the method that test group 1,2,3 uses embodiment 1,2,3 respectively is handled, and test group 4,5 uses the side of comparative example 1,2 respectively
Method processing weighs the mass M 1 of alloy sheet after soak impregnates using assay balance in experiment, after weighing sprayed coating drying
The mass M 2 of alloy sheet weighs the mass M 3 for adhering to the alloy sheet after reactive coating, weighs cold after active coating is made
But the mass M 4 of alloy sheet, when（M4-M3）Value with（M2-M1）Value closer to when, illustrate the removal effect of coating
Better, test result is as shown in table 1（The average value for the quality that data in experiment in table are）
1 coating removal effect of table is verified
| Project | M1（g） | M2（g） | M2-M1（g） | M3（g） | M4（g） | M4-M3（g） |
| Test group 1 | 3.124 | 3.358 | 0.234 | 3.725 | 3.449 | 0.226 |
| Test group 2 | 3.125 | 3.360 | 0.235 | 3.729 | 3.501 | 0.228 |
| Test group 3 | 3.127 | 3.363 | 0.236 | 3.733 | 3.503 | 0.230 |
| Test group 4 | 3.121 | 3.360 | 0.239 | 3.731 | 3.629 | 0.102 |
| Test group 5 | 3.126 | 3.361 | 0.235 | 3.730 | 3.721 | 0.009 |
As shown in Table 1, in test group 1,2,3 value of M4-M3 and the value of M2-M1 very close to, illustrate coating during calcining,
Almost it is removed totally, and the value of M4-M3 differs larger with the value of M2-M1 in test group 4,5, illustrates metallic carrier obtained
The residual quantity of middle coating is more, has seriously affected the performance of metallic carrier.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from the spirit and principles of the present invention made by changes, modifications, substitutions, combinations, simplifications,
Equivalent substitute mode is should be, is included within the scope of the present invention.
Claims (7)
1. a kind of preparation method of metallic carrier for catalyst, which is characterized in that including following operating procedure：
（1）Select thickness for the alloy sheet of 0.03-0.05mm thickness；
（2）Alloy sheet is put into soak and impregnates 20-25min, wherein soak is made of the component of following parts by weight：Second
11-16 parts of acid anhydrides, 1-5 parts of pivalic acid, 2-4 parts of surfactant, 160-200 parts of water；
（3）By step（2）The alloy sheet surface of processing uniformly sprays coating, and drying and processing 2-3 is small in 70-80 DEG C
When, wherein coating is made of the component of following parts by weight：75-88 parts of acrylic emulsion, 6-9 parts of propylene glycol phenylate, 1,9- nonyls two
1-3 parts of mercaptan, N, 4-7 parts of N- dimethylethanolamines, 2-5 parts of trichorotrifluoroethane, 1-2 parts of 2 ethyl hexanoic acid calcium, wetting levelling
1-2 parts of agent；
（4）After alloy sheet surface after the drying prepares active coating, after cooling, the metallic carrier for catalyst is obtained.
2. according to a kind of preparation method of metallic carrier for catalyst described in claim 1, which is characterized in that above-mentioned alloy
In thin slice, the mass fraction of each ingredient is：Fe 40-50%,Ni 25-28%,Cr 15-18%,Mn 1-3%,Mo 0.5-0.8%,
Surplus is Si.
3. according to a kind of preparation method of metallic carrier for catalyst described in claim 1, which is characterized in that above-mentioned steps
（2）In surfactant be quaternary ammonium salts surfactant, Sulfates surfactant, in sulfonate surfactant
Any one.
4. according to a kind of preparation method of metallic carrier for catalyst described in claim 1, which is characterized in that above-mentioned steps
（2）In surfactant be nonionic class surfactant.
5. according to a kind of preparation method of metallic carrier for catalyst described in claim 1, which is characterized in that above-mentioned steps
（3）Middle moistening flatting agent is any one in NP-10, H-875, H-436, H-140.
6. according to a kind of preparation method of metallic carrier for catalyst described in claim 1, which is characterized in that above-mentioned steps
（3）The pressure of spray tip is 0.2Mpa, spray distance 250mm when middle coating spraying.
7. according to a kind of preparation method of metallic carrier for catalyst described in claim 1, which is characterized in that above-mentioned steps
（4）The preparation method of middle active coating is：By weight, by γ-Al2O340 parts of powder, 2 parts of lanthanum nitrate, 1 part of cerous nitrate, nitric acid
1 part of barium after mixing, is added into 500 parts of deionized water, after persistently stirring 30min using the rotating speed of 450r/min, then
Nitric acid is added thereto, the pH value for adjusting mixed liquor is 5, and active coating slurry is made, the alloy sheet after drying is put into work
Property coating paste in, after standing 7min, take out, after 200 DEG C of drying and processing 20min, be transferred in 600 DEG C of high temperature furnace and calcine 8min
Afterwards, after taking out cooling, the metallic carrier for catalyst is obtained.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR900006482B1 (en) * | 1984-04-11 | 1990-09-01 | 가부시기가이샤 히다찌세이사꾸쇼 | Derpendicular magnetic recording medium |
| CN101249444B (en) * | 2008-04-14 | 2011-08-17 | 长春吉大科诺科技有限责任公司 | Method for preparing nitrous oxides selectivity reduction catalyst on metal alloy carrier |
| CN104324726A (en) * | 2014-10-13 | 2015-02-04 | 上海大学 | Preparation and coating method for metal-carrier monolithic catalyst |
| CN104661811A (en) * | 2013-07-16 | 2015-05-27 | 株式会社日光聚合物 | Composite of metal alloy and ceramic resin and method for preparing same |
-
2018
- 2018-01-18 CN CN201810047360.5A patent/CN108786839A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR900006482B1 (en) * | 1984-04-11 | 1990-09-01 | 가부시기가이샤 히다찌세이사꾸쇼 | Derpendicular magnetic recording medium |
| CN101249444B (en) * | 2008-04-14 | 2011-08-17 | 长春吉大科诺科技有限责任公司 | Method for preparing nitrous oxides selectivity reduction catalyst on metal alloy carrier |
| CN104661811A (en) * | 2013-07-16 | 2015-05-27 | 株式会社日光聚合物 | Composite of metal alloy and ceramic resin and method for preparing same |
| CN104324726A (en) * | 2014-10-13 | 2015-02-04 | 上海大学 | Preparation and coating method for metal-carrier monolithic catalyst |
Non-Patent Citations (1)
| Title |
|---|
| 任艳萍等: "《飞机金属材料腐蚀防护与控制技术》", 31 August 2016 * |
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