CN107235706A - A kind of functional ceramic powder material and preparation method thereof - Google Patents
A kind of functional ceramic powder material and preparation method thereof Download PDFInfo
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- CN107235706A CN107235706A CN201710492755.1A CN201710492755A CN107235706A CN 107235706 A CN107235706 A CN 107235706A CN 201710492755 A CN201710492755 A CN 201710492755A CN 107235706 A CN107235706 A CN 107235706A
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- 239000000463 material Substances 0.000 title claims abstract description 129
- 239000000919 ceramic Substances 0.000 title claims abstract description 74
- 239000000843 powder Substances 0.000 title claims abstract description 72
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 28
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 11
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 11
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 9
- 239000011707 mineral Substances 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 239000004113 Sepiolite Substances 0.000 claims description 18
- 229910052624 sepiolite Inorganic materials 0.000 claims description 18
- 235000019355 sepiolite Nutrition 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 17
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 14
- 229910021536 Zeolite Inorganic materials 0.000 claims description 12
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 12
- 239000010457 zeolite Substances 0.000 claims description 12
- 239000010438 granite Substances 0.000 claims description 11
- 239000002808 molecular sieve Substances 0.000 claims description 10
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 239000002131 composite material Substances 0.000 claims description 8
- 239000010970 precious metal Substances 0.000 claims description 8
- 229910052703 rhodium Inorganic materials 0.000 claims description 8
- 229910000510 noble metal Inorganic materials 0.000 claims description 7
- 239000002689 soil Substances 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 7
- IKNAJTLCCWPIQD-UHFFFAOYSA-K cerium(3+);lanthanum(3+);neodymium(3+);oxygen(2-);phosphate Chemical compound [O-2].[La+3].[Ce+3].[Nd+3].[O-]P([O-])([O-])=O IKNAJTLCCWPIQD-UHFFFAOYSA-K 0.000 claims description 6
- 229910052590 monazite Inorganic materials 0.000 claims description 6
- 239000004579 marble Substances 0.000 claims description 4
- 239000010453 quartz Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- LQFNMFDUAPEJRY-UHFFFAOYSA-K lanthanum(3+);phosphate Chemical compound [La+3].[O-]P([O-])([O-])=O LQFNMFDUAPEJRY-UHFFFAOYSA-K 0.000 claims description 3
- YXNVQKRHARCEKL-UHFFFAOYSA-K ytterbium(3+);phosphate Chemical compound [Yb+3].[O-]P([O-])([O-])=O YXNVQKRHARCEKL-UHFFFAOYSA-K 0.000 claims description 3
- 230000008961 swelling Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005245 sintering Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000000227 grinding Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 11
- 239000007789 gas Substances 0.000 description 10
- 229910010293 ceramic material Inorganic materials 0.000 description 8
- 239000000440 bentonite Substances 0.000 description 5
- 229910000278 bentonite Inorganic materials 0.000 description 5
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 2
- 102000010637 Aquaporins Human genes 0.000 description 1
- 108010063290 Aquaporins Proteins 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005297 material degradation process Methods 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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Abstract
The invention provides a kind of functional ceramic powder material and preparation method thereof, the functional ceramic powder material is mainly made up of automotive exhaust catalysis material, sorbing material, rare-earth mineral material, binding material and hydrogen-storing material, is made through the process such as material mixing, molding, sintering, broken, grinding.The functional ceramic powder material has degraded vehicle exhaust, purifies the effect of air, has broad prospect of application in the field such as vehicle maintenance service and environmental protection.
Description
Technical field
The present invention relates to a kind of ceramic powder material, more particularly to a kind of functionality ceramic powder body material and its preparation side
Method.
Background technology
With the continuous improvement of living standards of the people, the product with energy-conserving and environment-protective, human body heath care function enjoys generation
People pays close attention to.It has developed a variety of ceramic materials, the applications of these ceramic materials is widely.
Such as patent ZL02125487.7 discloses a kind of composition of multifunctinoal health ceramic powder material, preparation method, should
Material has excellent radiation infrared function, can be extensive in ceramic and water treatment field with activated water, antibacterial
Using；Patent ZL200410062705.2 discloses a kind of ceramic powder material with activated fluid fuel molecule and combustion aid function
Composition, preparation method and the purposes of material, the material have excellent activation of fuel oil, activating air function, in gasoline car, diesel vehicle
Energy-saving field extensive use；Patent CN 200610014778.3 discloses a kind of function ceramics health-care material and its preparation
Method.
At present, with the increase of car ownership, the problem of environmental pollution that vehicle exhaust is caused is increasingly severe, such as what is the need
Except vehicle exhaust has become the hot issue of world today's research.What the present invention exactly made under this research background, it is intended to
Eliminate the vehicle exhaust in environment.
The content of the invention
It is an object of the invention to provide a kind of functional ceramic powder material and preparation method thereof, the ceramic powder material energy
Enough adsorb and eliminate the vehicle exhaust in environment, purify air.
To reach this goal of the invention, the present invention uses following technical scheme：
On the one hand, the invention provides a kind of functional ceramic powder material, it is made up of the raw material of following percentage by weight：
32~42 parts of automotive exhaust catalysis material, such as 33 parts, 34 parts, 35 parts, 36 parts, 38 parts, 39 parts, 40 parts or 41 parts
Deng；
10~15 parts of sorbing material, such as 11 parts, 12 parts, 13 parts, 14 parts or 14.5 parts；
4~8 parts of rare-earth mineral material, such as 5 parts, 6 parts, 7 parts or 7.5 parts；
35~40 parts of binding material, such as 36 parts, 37 parts, 38 parts, 39 parts or 39.8 parts；
1~3 part of hydrogen-storing material, such as 1.5 parts, 2 parts, 2.5 parts or 2.8 parts；
The hydrogen-storing material is CexZr0.93-xFeyLa0.07-yO2, wherein x=0.2-0.8, such as 0.3,0.4,0.5,0.6,
0.7 or 0.75 etc., y=0-0.01, such as 0.001,0.003,0.005,0.007 or 0.009.
The hydrogen-storing material can be prepared according to prior art, the preparation method as disclosed in CN 102744074A.
In the functional ceramic powder material that the present invention is provided hydrogen-storing material and automotive exhaust catalysis material and sorbing material it
Between there is synergy, its three functionally mutually promotes so that the functional ceramic powder material is used for urging for vehicle exhaust
Change and be obviously improved in oxidation susceptibility.
As preferred technical scheme, the invention provides a kind of functional ceramic powder material, by weight percentage by with
Lower raw material is made：
Described automotive exhaust catalysis material be gamma aluminum oxide, alkaline earth be modified CeZr composite oxides and precious metals pd,
Rh mixture；In the automotive exhaust catalysis material percentage by weight of noble metal be 0.05~0.5 part, such as 0.1 part, 0.2
Part, 0.3 part, 0.4 part or 0.45 part；The percentage by weight of gamma aluminum oxide is 50~80 in the automotive exhaust catalysis material
Part, such as 55 parts, 60 parts, 65 parts, 70 parts, 75 parts or 78 parts.
It is automobile three-element catalytic that gamma aluminum oxide, alkaline earth, which are modified CeZr composite oxides and precious metals pd, Rh mixture,
The automotive exhaust catalysis material commonly used in device, and preparation method is very ripe, and such a catalysis material is used in the present invention
Expect not only excellent catalytic effect, and cost is relatively low.
Described sorbing material is iron zeolite, one kind of sepiolite or carbon molecular sieve or at least two mixture；Typical case
But nonrestrictive combination is such as, iron zeolite and sepiolite, iron zeolite and carbon molecular sieve, iron zeolite, sepiolite and carbon molecular sieve, institute
State sepiolite in sorbing material percentage by weight be 0.25~15.0%, such as 0.3%, 0.5%, 1.0%, 2.0%, 3.0%,
5.0%th, 8.0%, 10.0%, 12.0% or 14.0%.
Sepiolite has a big specific surface area, larger ion-exchange capacity, thus in chemical catalysis, agricultural chemicals, organic fertilizer
Application in terms of filler field, waste water, the processing of waste gas is increasingly extensive.The sepiolite existed in threadiness, with great
Potential specific surface area, with very big adsorption capacity.
Sepiolite possesses including the zeolite aquaporin and hole and big surface area through total, has in theory
Tubulose duct and part mesopore and a small amount of macroporous structure of a large amount of apertures for 0.36nm-1.06nm.Sepiolite has up to 900m2/
G theoretical surface, can adsorb substantial amounts of water and polar substances in gas, including low polar substances in passage and hole.
Therefore, sepiolite has very strong adsorption capacity.
Zeolite has rack-like structure, that is in their crystal, molecule connects together as building a framework, middle shape
Into many cavitys.Zeolite can be for some pollutants of absorption.
Carbon molecular sieve is the purpose that separation gas is reached using the characteristic of screening.In molecular sieve adsorption foreign gas,
Macropore and mesopore only serve the effect of passage, and adsorbed molecule is transported in micropore and sub-micro hole, and micropore and sub-micro hole are
It is the real volume for playing suction-operated.Include substantial amounts of micropore inside carbon molecular sieve, these micropores allow aerodynamic size small
Molecule be diffused rapidly in hole, while limit major diameter molecule entrance.Due to various sizes of gas molecule relative diffusion
Speed is had differences, and the component of admixture of gas can be efficiently separated.
The rare-earth mineral material is quartz porphyry, marble porphyry, monazite, granite, granite peamatite, cerous phosphate
Ytterbium ore deposit or one kind or at least two mixture in cerous phosphate lanthanum ore deposit.It is typical but non-limiting combination such as, quartz porphyry with
Marble porphyry, monazite, granite and granite peamatite, cerous phosphate ytterbium ore deposit and cerous phosphate lanthanum ore deposit.Rare earth has environment purification
Function.Cleaning catalyst for tail gases of automobiles is one of maximum project of rare earth application amount.
The binding material is bentonite and/or Suzhou soil.
The particle diameter of each raw material is not less than 200 mesh, such as 250 mesh, 260 mesh, 280 mesh, 300 mesh, 320 mesh, 350 mesh or
480 mesh etc..
The meso-position radius of the functional ceramic powder material be 0.2~8.0 micron, such as 0.5 micron, 1.0 microns, 3.0 microns,
5.0 microns, 6.0 microns or 7.0 microns.
On the other hand, present invention also offers a kind of preparation method of functional ceramic powder material as described above, including
Following steps：
(1) by the raw material ball mill mixing of the percentage by weight, so as to get diameter of particle be not less than 200 mesh, such as 250
Mesh, 260 mesh, 280 mesh, 300 mesh, 320 mesh, 350 mesh or 480 mesh etc..
(2) uniform sprinkling accounts for the clear water of powder weight 0.5~2.0% in the powder that step (1) is obtained, such as 0.8%,
1.0%th, 1.2%, 1.3%, 1.5% or 1.8% etc.；
(3) powder for being prepared step (2) with forcing press is molded, and ceramic body is made；
(4) by step (3) prepare base substrate 850~1200 DEG C (such as 900 DEG C, 950 DEG C, 1000 DEG C, 1050 DEG C, 1100
DEG C or 1150 DEG C etc.) 1.5~4h of sintering (such as 2h, 2.5h, 3h or 3.5h), ceramic sintered bodies are made；
(5) ceramic sintered bodies for preparing step (4) are broken, crush, grind, and it is 0.2~8.0 micron that meso-position radius, which are made,
Functional ceramic powder material, such as 0.5 micron, 1.0 microns, 3.0 microns, 5.0 microns, 6.0 microns or 7.0 microns.
Ceramic material of the present invention can be made into potsherd or the ceramic body of other forms is loaded on vehicle exhaust
In clarifier, the tail gas for automobile generation of degrading.
Compared with prior art, beneficial effects of the present invention are：
The ceramic material of the present invention has the effect of the vehicle exhaust in degraded air, can improve air quality；Due to adding
Sorbing material and hydrogen-storing material are added, the ability of ceramic material degradation of contaminant of the invention is greatly improved；
The each component of ceramic material of the present invention is Common materials, can be obtained easily；
Ceramic material preparation method of the present invention is simple, suitable industrialized production.
Embodiment
Technical scheme is further illustrated below by embodiment.
Embodiment 1
A kind of functional ceramic powder material, is made up of the raw material of following percentage by weight：
The hydrogen-storing material is CexZr0.93-xFeyLa0.07-yO2, wherein x=0.2, y=0.
Described automotive exhaust catalysis material be gamma aluminum oxide, alkaline earth be modified CeZr composite oxides and precious metals pd,
Rh mixture；
The percentage by weight of noble metal is 0.05% in the automotive exhaust catalysis material；
The percentage by weight of gamma aluminum oxide is 50% in the automotive exhaust catalysis material.
Described sorbing material is iron zeolite；
The rare-earth mineral material is quartz porphyry.
The binding material is bentonite.
The particle diameter of each raw material is 200 mesh.
The meso-position radius of the functional ceramic powder material are 0.2~0.5 micron.
The preparation method of described functional ceramic powder material, comprises the following steps：
(1) by the raw material ball mill mixing of the percentage by weight, so as to get diameter of particle be 200 mesh；
(2) uniform sprinkling accounts for the clear water of powder weight 0.5% in the powder that step (1) is obtained；
(3) powder for being prepared step (2) with forcing press is molded, and ceramic body is made；
(4) base substrate for preparing step (3) is sintered 4 hours at 850 degrees Celsius, and ceramic sintered bodies are made；
(5) ceramic sintered bodies for preparing step (4) are broken, crush, grind, and it is 0.2~0.5 micron that meso-position radius, which are made,
Functional ceramic powder material.
Embodiment 2
A kind of functional ceramic powder material, is made up of the raw material of following percentage by weight：
The hydrogen-storing material is CexZr0.93-xFeyLa0.07-yO2, wherein x=0.8, y=0.01.
Described automotive exhaust catalysis material be gamma aluminum oxide, alkaline earth be modified CeZr composite oxides and precious metals pd,
Rh mixture；
The percentage by weight of noble metal is 0.5% in the automotive exhaust catalysis material；
The percentage by weight of gamma aluminum oxide is 80% in the automotive exhaust catalysis material.
Described sorbing material is sepiolite.
The rare-earth mineral material is marble porphyry.
The binding material is Suzhou soil.
The particle diameter of each raw material is not less than 200 mesh.
The meso-position radius of the functional ceramic powder material are 5.0~8.0 microns.
The preparation method of described functional ceramic powder material, comprises the following steps：
(1) by the raw material ball mill mixing of the percentage by weight, so as to get diameter of particle be not less than 200 mesh；
(2) uniform sprinkling accounts for the clear water of powder weight 2.0% in the powder that step (1) is obtained；
(3) powder for being prepared step (2) with forcing press is molded, and ceramic body is made；
(4) base substrate for preparing step (3) is sintered 1.5 hours at 1200 degrees Celsius, and ceramic sintered bodies are made；
(5) ceramic sintered bodies for preparing step (4) are broken, crush, grind, and it is 5.0~8.0 microns that meso-position radius, which are made,
Functional ceramic powder material.
Embodiment 3
A kind of functional ceramic powder material, is made up of the raw material of following percentage by weight：
Described automotive exhaust catalysis material be gamma aluminum oxide, alkaline earth be modified CeZr composite oxides and precious metals pd,
Rh mixture；
The percentage by weight of noble metal is 0.3% in the automotive exhaust catalysis material；
The percentage by weight of gamma aluminum oxide is 60% in the automotive exhaust catalysis material.
Described sorbing material is the mixture of iron zeolite, sepiolite and carbon molecular sieve；
The percentage by weight of sepiolite is 2.0% in the sorbing material.
The rare-earth mineral material is that mass ratio is 2:1 monazite and granite.
The binding material is bentonite and Suzhou soil.
The particle diameter of each raw material is not less than 200 mesh.
The meso-position radius of the functional ceramic powder material are 2.0-3.0 microns.
The preparation method of described functional ceramic powder material, comprises the following steps：
(1) by the raw material ball mill mixing of the percentage by weight, so as to get diameter of particle be not less than 200 mesh；
(2) uniform sprinkling accounts for the clear water of powder weight 1.0% in the powder that step (1) is obtained；
(3) powder for being prepared step (2) with forcing press is molded, and ceramic body is made；
(4) base substrate for preparing step (3) is sintered 3 hours at 1000 degrees Celsius, and ceramic sintered bodies are made；
(5) ceramic sintered bodies for preparing step (4) are broken, crush, grind, and it is 2.0-3.0 microns that meso-position radius, which are made,
Functional ceramic powder material.
Embodiment 4
A kind of functional ceramic powder material, is made up of the raw material of following percentage by weight：
Described automotive exhaust catalysis material be gamma aluminum oxide, alkaline earth be modified CeZr composite oxides and precious metals pd,
Rh mixture；
The percentage by weight of noble metal is 0.2% in the automotive exhaust catalysis material；
The percentage by weight of gamma aluminum oxide is 70% in the automotive exhaust catalysis material.
Described sorbing material is the mixture of iron zeolite, sepiolite and carbon molecular sieve；
The percentage by weight of sepiolite is 15.0% in the sorbing material.
The rare-earth mineral material is that mass ratio is 1:1:1 monazite, granite and granite peamatite.
The binding material is that mass ratio is bentonite and Suzhou soil.
The particle diameter of each raw material is not less than 200 mesh.
The meso-position radius of the functional ceramic powder material are 5.0-6.0 microns.
The preparation method of described functional ceramic powder material, comprises the following steps：
(1) by the raw material ball mill mixing of the percentage by weight, so as to get diameter of particle be not less than 200 mesh；
(2) uniform sprinkling accounts for the clear water of powder weight 1.5% in the powder that step (1) is obtained；
(3) powder for being prepared step (2) with forcing press is molded, and ceramic body is made；
(4) base substrate for preparing step (3) is sintered 2.5 hours at 950 degrees Celsius, and ceramic sintered bodies are made；
(5) ceramic sintered bodies for preparing step (4) are broken, crush, grind, and it is 5.0-6.0 microns that meso-position radius, which are made,
Functional ceramic powder material.
Embodiment 5
A kind of functional ceramic powder material, is made up of the raw material of following percentage by weight：
Described automotive exhaust catalysis material be gamma aluminum oxide, alkaline earth be modified CeZr composite oxides and precious metals pd,
Rh mixture；
The percentage by weight of noble metal is 0.2% in the automotive exhaust catalysis material；
The percentage by weight of gamma aluminum oxide is 65% in the automotive exhaust catalysis material.
Described sorbing material is the mixture of iron zeolite, sepiolite and carbon molecular sieve；
The percentage by weight of sepiolite is 10.0% in the sorbing material.
The rare-earth mineral material is that mass ratio is 1:1:1 monazite, granite and granite peamatite.
The binding material is that mass ratio is bentonite and Suzhou soil.
The particle diameter of each raw material is not less than 200 mesh.
The meso-position radius of the functional ceramic powder material are 5.0-6.0 microns.
The preparation method of described functional ceramic powder material, comprises the following steps：
(1) by the raw material ball mill mixing of the percentage by weight, so as to get diameter of particle be not less than 200 mesh；
(2) uniform sprinkling accounts for the clear water of powder weight 1.5% in the powder that step (1) is obtained；
(3) powder for being prepared step (2) with forcing press is molded, and ceramic body is made；
(4) base substrate for preparing step (3) is sintered 2.5 hours at 950 degrees Celsius, and ceramic sintered bodies are made；
(5) ceramic sintered bodies for preparing step (4) are broken, crush, grind, and it is 5.0-6.0 microns that meso-position radius, which are made,
Functional ceramic powder material.
Comparative example 1
In addition to automotive exhaust catalysis material is not contained, remaining is same as Example 5.
Comparative example 2
In addition to sorbing material is not contained, remaining is same as Example 5.
Comparative example 3
In addition to hydrogen-storing material is not contained, remaining is same as Example 5.
Comparative example 4
Except raw material is：
Outside, remaining is same as Example 5.
Comparative example 5
Except raw material is：
Outside, remaining is same as Example 5.
Ceramic material powder application prepared by above-described embodiment and comparative example is in the vehicle exhaust of same model
In processing, and compared with the three-way catalyst in triple-effect catalytic unit, detection automobile is under firm starting state and normal
Tail gas degradation efficiency during traveling, testing result is as shown in table 1：
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Three-way catalyst | |
| Just start | 85 parts | 86 parts | 90 parts | 91 parts | 92 parts | 50 parts |
| Normally travel | 96 parts | 97 parts | 98 parts | 96 parts | 98 parts | 85 parts |
| Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | Comparative example 5 | ||
| Just start | 65 parts | 76 parts | 75 parts | 80 parts | 82 parts | |
| Normally travel | 40 parts | 75 parts | 78 parts | 85 parts | 88 parts |
As can be seen from Table 1, ceramic powder material of the invention is used for the processing of vehicle exhaust, not only in the normal row of automobile
It is higher to the degradation efficiency of tail gas during sailing, equally there is excellent tail gas degradation efficiency in the state of firm start.
Applicant states that the present invention illustrates the method detailed of the present invention, but not office of the invention by above-described embodiment
It is limited to above-mentioned method detailed, that is, does not mean that the present invention has to rely on above-mentioned method detailed and could implemented.Art
Technical staff it will be clearly understood that any improvement in the present invention, equivalence replacement and auxiliary element to each raw material of product of the present invention
Addition, selection of concrete mode etc., within the scope of all falling within protection scope of the present invention and being open.
Claims (9)
1. a kind of functional ceramic powder material, it is characterised in that be made up of the raw material of following percentage by weight：
The hydrogen-storing material is CexZr0.93-xFeyLa0.07-yO2, wherein x=0.2-0.8, y=0-0.01.
2. functional ceramic powder material according to claim 1, it is characterised in that by the raw material system of following percentage by weight
Into：
3. functional ceramic powder material according to claim 1 or 2, it is characterised in that described automotive exhaust catalysis material
Expect to be modified CeZr composite oxides and precious metals pd, Rh mixture for gamma aluminum oxide, alkaline earth；
Preferably, the percentage by weight of noble metal is 0.05~0.5% in the automotive exhaust catalysis material；
Preferably, the percentage by weight of gamma aluminum oxide is 50~80% in the automotive exhaust catalysis material.
4. the functional ceramic powder material according to one of claim 1-3, it is characterised in that described sorbing material is iron
Zeolite, one kind of sepiolite or carbon molecular sieve or at least two mixture；
Preferably, the percentage by weight of sepiolite is 0.25~15.0% in the sorbing material.
5. the functional ceramic powder material according to one of claim 1-4, it is characterised in that the rare-earth mineral material is
Quartz porphyry, marble porphyry, monazite, granite, granite peamatite, cerous phosphate ytterbium ore deposit or one kind in cerous phosphate lanthanum ore deposit or
At least two mixture.
6. the functional ceramic powder material according to one of claim 1-5, it is characterised in that the binding material is swelling
Soil and/or Suzhou soil.
7. the functional ceramic powder material according to one of claim 1-6, it is characterised in that the particle diameter of each raw material is equal
It is not less than 200 mesh.
8. the functional ceramic powder material according to one of claim 1-7, it is characterised in that：The functional ceramic powder material
The meso-position radius of material are 0.2~8.0 micron.
9. the preparation method of the functional ceramic powder material described in a kind of one of claim 1-8, comprises the following steps：
(1) by the raw material ball mill mixing of the percentage by weight, so as to get diameter of particle be not less than 200 mesh；
(2) uniform sprinkling accounts for the clear water of powder weight 0.5~2.0% in the powder that step (1) is obtained；
(3) powder for being prepared step (2) with forcing press is molded, and ceramic body is made；
(4) base substrate for preparing step (3) is sintered 1.5~4 hours at 850~1200 degrees Celsius, and ceramic sintered bodies are made；
(5) ceramic sintered bodies for preparing step (4) are broken, crush, grind, and the function that meso-position radius are 0.2~8.0 micron is made
Ceramic powder material.
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