CN106925251A - A kind of aluminium silicon lanthanium complex oxide powder body material and preparation method thereof - Google Patents
A kind of aluminium silicon lanthanium complex oxide powder body material and preparation method thereof Download PDFInfo
- Publication number
- CN106925251A CN106925251A CN201710187673.6A CN201710187673A CN106925251A CN 106925251 A CN106925251 A CN 106925251A CN 201710187673 A CN201710187673 A CN 201710187673A CN 106925251 A CN106925251 A CN 106925251A
- Authority
- CN
- China
- Prior art keywords
- complex oxide
- oxide powder
- powder body
- body material
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000843 powder Substances 0.000 title claims abstract description 38
- 239000000463 material Substances 0.000 title claims abstract description 35
- KMWBBMXGHHLDKL-UHFFFAOYSA-N [AlH3].[Si] Chemical compound [AlH3].[Si] KMWBBMXGHHLDKL-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims abstract description 15
- 238000001035 drying Methods 0.000 claims abstract description 10
- -1 rare earth lanthanum nitrate hexahydrate Chemical class 0.000 claims abstract description 10
- 239000000243 solution Substances 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 10
- 230000007062 hydrolysis Effects 0.000 claims abstract description 8
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 8
- 239000011259 mixed solution Substances 0.000 claims abstract description 6
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 5
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 3
- 230000032683 aging Effects 0.000 claims abstract description 3
- 239000002270 dispersing agent Substances 0.000 claims abstract description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 3
- 239000013049 sediment Substances 0.000 claims description 21
- 238000001354 calcination Methods 0.000 claims description 13
- 206010013786 Dry skin Diseases 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 7
- 238000000967 suction filtration Methods 0.000 claims description 7
- 229910052746 lanthanum Inorganic materials 0.000 claims description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 abstract description 14
- 239000007789 gas Substances 0.000 abstract description 8
- 230000003197 catalytic effect Effects 0.000 abstract description 7
- 239000011248 coating agent Substances 0.000 abstract description 7
- 238000000576 coating method Methods 0.000 abstract description 7
- 229910000510 noble metal Inorganic materials 0.000 abstract description 6
- 238000004140 cleaning Methods 0.000 abstract description 4
- 239000011159 matrix material Substances 0.000 abstract description 4
- 239000000758 substrate Substances 0.000 abstract description 4
- 238000006555 catalytic reaction Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 34
- 229910002651 NO3 Inorganic materials 0.000 description 10
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 10
- 238000001556 precipitation Methods 0.000 description 10
- 238000001514 detection method Methods 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 238000000746 purification Methods 0.000 description 6
- 229920001030 Polyethylene Glycol 4000 Polymers 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 5
- 230000001419 dependent effect Effects 0.000 description 5
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum oxide Inorganic materials [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 5
- CZMAIROVPAYCMU-UHFFFAOYSA-N lanthanum(3+) Chemical compound [La+3] CZMAIROVPAYCMU-UHFFFAOYSA-N 0.000 description 5
- KTUFCUMIWABKDW-UHFFFAOYSA-N oxo(oxolanthaniooxy)lanthanum Chemical compound O=[La]O[La]=O KTUFCUMIWABKDW-UHFFFAOYSA-N 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 229910052697 platinum Inorganic materials 0.000 description 3
- 229910052703 rhodium Inorganic materials 0.000 description 3
- 239000010948 rhodium Substances 0.000 description 3
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003421 catalytic decomposition reaction Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910003158 γ-Al2O3 Inorganic materials 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
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
-
- 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
- B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
-
- 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
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
- B01J35/615—100-500 m2/g
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F17/00—Compounds of rare earth metals
- C01F17/30—Compounds containing rare earth metals and at least one element other than a rare earth metal, oxygen or hydrogen, e.g. La4S3Br6
- C01F17/32—Compounds containing rare earth metals and at least one element other than a rare earth metal, oxygen or hydrogen, e.g. La4S3Br6 oxide or hydroxide being the only anion, e.g. NaCeO2 or MgxCayEuO
-
- 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
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The present invention relates to a kind of new material, more particularly to a kind of aluminium silicon lanthanium complex oxide powder body material and preparation method thereof；The method is comprised the following steps：A：First by teos hydrolysis, aluminum nitrate solution and rare earth lanthanum nitrate hexahydrate are subsequently adding, obtain mixed solution；B:The polyethylene glycol of 0.5wt% is added in mixed solution as dispersant；C：Stirring；D:Ageing；E:Drying.Preparation process is simple, prices of raw materials low cost, the cleaning catalyst for tail gases of automobiles coated substrate material for keeping high-specific surface area at high temperature can finally be prepared, it will can provide specific surface area matrix material higher for automotive exhaust catalysis coating, improve catalytic cleaning of car tail gas efficiency and reduce the usage amount of noble metal.
Description
Technical field
The present invention relates to new material, more particularly to a kind of aluminium silicon lanthanium complex oxide powder body material and preparation method thereof.
Background technology
It is to administer automobile exhaust pollution comparative maturity at present using harmful substance in three-way catalyst decomposing automobile exhaust
Technology.The technology is that will have the noble metal such as salt such as rhodium, platinum of good catalytic purification effect to vehicle exhaust or such as rhodium, platinum are micro-
Rice, nano-particle are scattered in the ceramic particle slurry as catalyst coat matrix and are coated on catalyst support surface, pass through
After high temperature sintering, slurry forms the coating that there is catalytic purification to act on to vehicle exhaust in catalyst support surface.In catalyst
In catalytic decomposition vehicle exhaust during harmful substance, the coating containing noble metal catalysts such as rhodium, platinum is in high-temperature work environment
Middle had specific surface area size directly influences catalytic purification efficiency of the catalyst to tail gas, the specific surface that coating has
Product is bigger, then its catalytic purification efficiency is higher.At present, actually used auto-exhaust catalyst coated substrate material it is main with
γ-Al2O3And CeO2、ZrO2Based on powder body material, it is about 100 through the powder specific-surface area detection after 1000 DEG C of calcinings in 4 hours~
150m2/g。
Increasingly strict, the increasingly decline of vehicle price, association area in addition controlled motor vehicle exhaust emission with various countries
Researcher make great efforts to be improved on the premise of noble metal catalyst usage amount is not increased catalyst always to the purification of tail gas effect
Rate.Therefore, improve being distributed in noble metal and tail gas in coating by improving the specific surface area of catalyst coat matrix material
Catalytic Contact area is an important channel for realizing above-mentioned target.Accordingly, it would be desirable to research and develop can possess at high temperature than existing with urging
Agent coated substrate material has the new catalyst coating material of more bigger serface.
The content of the invention
It is an object of the invention to provide a kind of aluminium silicon lanthanium complex oxide powder body material and preparation method thereof, solve and urge
Problem of the agent to the purification efficiency of tail gas.
The present invention is achieved in that a kind of aluminium silicon lanthanium complex oxide powder body material and preparation method thereof includes following step
Suddenly：
A：First by teos hydrolysis, aluminum nitrate solution and rare earth lanthanum nitrate hexahydrate are subsequently adding, are mixed
Solution；
B:The polyethylene glycol of 0.5wt% is added in mixed solution as dispersant；
C：Stirring；
D:Ageing；
E:Drying.
Further technical scheme of the invention is：The aluminum nitrate solution concentration added in the step A is 0.3mol/L.
Further technical scheme of the invention is:The rare earth lanthanum nitrate hexahydrate concentration added in the step A is
0.1mol/L。
Further technical scheme of the invention is：Mixing time is 30min in the step C；To mixed while stirring
Ammoniacal liquor is added dropwise in conjunction liquid, 9 are equal to mixed liquor pH value.
Further technical scheme of the invention is：In the step D, mixed liquor is aged 1 hour in 70 DEG C of water-baths
To siliceous, aluminium and the sediment of lanthanum.
Further technical scheme of the invention is：In the step E, sediment is washed into suction filtration and in 110 DEG C of dryings 24
Hour, obtain aluminium silicon lanthanium complex oxide powder body material.
Further technical scheme of the invention is：In the step E, sediment is obtained into aluminium silicon in 2 hours in 500 DEG C of calcinings
Lanthanium complex oxide powder body material.
The beneficial effects of the invention are as follows：Preparation process is simple, prices of raw materials low cost can finally be prepared at high temperature
The cleaning catalyst for tail gases of automobiles coated substrate material of high-specific surface area is kept, it can provide ratio for automotive exhaust catalysis coating
Surface area matrix material higher, improves catalytic cleaning of car tail gas efficiency and reduces the usage amount of noble metal.
Specific embodiment
Embodiment one：(1) tetraethyl orthosilicate after hydrolysis and aluminum nitrate solution are mixed, Al3+ and Si4+ in the mixed liquor
Mol ratio is 2.5:1, Al3+ concentration is 0.3mol/L in controlling mixed liquor；
(2) be the amount of the ratio-dependent La (NO3) 3 of aluminium-silicon oxide 3wt.% with La2O3 contents, and be configured to concentration be
The aqueous solution of 0.1mol/LLa (NO3) 3 is added in the mixed liquor of tetraethyl orthosilicate and aluminum nitrate.
(3) PEG4000 of 0.5wt.% is added in mixed liquor；
(4) under vigorous stirring, to ammoniacal liquor is added dropwise in mixed liquor to pH value to 9, make aluminium in mixed liquor, silicon and lanthanum ion complete
Full precipitation；
(5) mixed liquor that will form sediment is aged 1 hour in 70 DEG C of water-baths, then washs suction filtration precipitation and separation
Thing, by sediment in 110 DEG C of dryings 24 hours；
(6) sediment is obtained into aluminium silicon lanthanium complex oxide powder body material for 2 hours in 500 DEG C of calcinings, measures the powder ratio
Surface area is 396.8m2/g；
(7) calcined above-mentioned 4 hours at 1000 DEG C again through 500 DEG C of aluminium silicon lanthanium complex oxide powder body materials of calcining, surveyed
The powder specific-surface area detection is obtained for 182.5m2/g.
Embodiment two：(1) tetraethyl orthosilicate after hydrolysis and aluminum nitrate solution are mixed, Al3+ and Si4+ rubs in mixed liquor
You are than being 3:1, Al3+ concentration is 0.3mol/L in controlling mixed liquor；
(2) be the amount of the ratio-dependent La (NO3) 3 of aluminium-silicon oxide 3wt.% with La2O3 contents, and be configured to concentration be
The aqueous solution of 0.1mol/LLa (NO3) 3 is added in the mixed liquor of tetraethyl orthosilicate and aluminum nitrate.
(3) PEG4000 of 0.5wt.% is added in mixed liquor；
(4) under vigorous stirring, to ammoniacal liquor is added dropwise in mixed liquor to pH value to 9, make aluminium in mixed liquor, silicon and lanthanum ion complete
Full precipitation；
(5) mixed liquor that will form sediment is aged 1 hour in 70 DEG C of water-baths, then washs suction filtration precipitation and separation
Thing, by sediment in 110 DEG C of dryings 24 hours；
(6) sediment is obtained into aluminium silicon lanthanium complex oxide powder body material for 2 hours in 500 DEG C of calcinings, measures the powder ratio
Surface area is 446.7m2/g；
(7) calcined above-mentioned 4 hours at 1000 DEG C again through 500 DEG C of aluminium silicon lanthanium complex oxide powder body materials of calcining, surveyed
The powder specific-surface area detection is obtained for 233.2m2/g.
Embodiment three：(1) tetraethyl orthosilicate after hydrolysis and aluminum nitrate solution are mixed, Al3+ and Si4+ rubs in mixed liquor
You are than being 3.5:1, Al3+ concentration is 0.3mol/L in controlling mixed liquor；
(2) be the amount of the ratio-dependent La (NO3) 3 of aluminium-silicon oxide 3wt.% with La2O3 contents, and be configured to concentration be
The aqueous solution of 0.1mol/LLa (NO3) 3 is added in the mixed liquor of tetraethyl orthosilicate and aluminum nitrate.
(3) PEG4000 of 0.5wt.% is added in mixed liquor；
(4) under vigorous stirring, to ammoniacal liquor is added dropwise in mixed liquor to pH value to 9, make aluminium in mixed liquor, silicon and lanthanum ion complete
Full precipitation；
(5) mixed liquor that will form sediment is aged 1 hour in 70 DEG C of water-baths, then washs suction filtration precipitation and separation
Thing, by sediment in 110 DEG C of dryings 24 hours；
(6) sediment is obtained into aluminium silicon lanthanium complex oxide powder body material for 2 hours in 500 DEG C of calcinings, measures the powder ratio
Surface area is 478.6m2/g；
(7) calcined above-mentioned 4 hours at 1000 DEG C again through 500 DEG C of aluminium silicon lanthanium complex oxide powder body materials of calcining, surveyed
The powder specific-surface area detection is obtained for 267.4m2/g.
Example IV：(1) tetraethyl orthosilicate after hydrolysis and aluminum nitrate solution are mixed, Al3+ and Si4+ rubs in mixed liquor
You are than being 3:1, Al3+ concentration is 0.3mol/L in controlling mixed liquor；
(2) be the amount of the ratio-dependent La (NO3) 3 of aluminium-silicon oxide 1wt.% with La2O3 contents, and be configured to concentration be
The aqueous solution of 0.1mol/LLa (NO3) 3 is added in the mixed liquor of tetraethyl orthosilicate and aluminum nitrate.
(3) PEG4000 of 0.5wt.% is added in mixed liquor；
(4) under vigorous stirring, to ammoniacal liquor is added dropwise in mixed liquor to pH value to 9, make aluminium in mixed liquor, silicon and lanthanum ion complete
Full precipitation；
(5) mixed liquor that will form sediment is aged 1 hour in 70 DEG C of water-baths, then washs suction filtration precipitation and separation
Thing, by sediment in 110 DEG C of dryings 24 hours；
(6) sediment is obtained into aluminium silicon lanthanium complex oxide powder body material for 2 hours in 500 DEG C of calcinings, measures the powder ratio
Surface area is 401.6m2/g；
(7) calcined above-mentioned 4 hours at 1000 DEG C again through 500 DEG C of aluminium silicon lanthanium complex oxide powder body materials of calcining, surveyed
The powder specific-surface area detection is obtained for 195.1m2/g.
Embodiment five：(1) tetraethyl orthosilicate after hydrolysis and aluminum nitrate solution are mixed, Al3+ and Si4+ rubs in mixed liquor
You are than being 3:1, Al3+ concentration is 0.3mol/L in controlling mixed liquor；
(2) be the amount of the ratio-dependent La (NO3) 3 of aluminium-silicon oxide 5wt.% with La2O3 contents, and be configured to concentration be
The aqueous solution of 0.1mol/LLa (NO3) 3 is added in the mixed liquor of tetraethyl orthosilicate and aluminum nitrate.
(3) PEG4000 of 0.5wt.% is added in mixed liquor；
(4) under vigorous stirring, to ammoniacal liquor is added dropwise in mixed liquor to pH value to 9, make aluminium in mixed liquor, silicon and lanthanum ion complete
Full precipitation；
(5) mixed liquor that will form sediment is aged 1 hour in 70 DEG C of water-baths, then washs suction filtration precipitation and separation
Thing, by sediment in 110 DEG C of dryings 24 hours；
(6) sediment is obtained into aluminium silicon lanthanium complex oxide powder body material for 2 hours in 500 DEG C of calcinings.Measure the powder ratio
Surface area is 420.5m2/g；
(7) calcined above-mentioned 4 hours at 1000 DEG C again through 500 DEG C of aluminium silicon lanthanium complex oxide materials of calcining, measure this
Powder specific-surface area detection is 203.6m2/g.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (7)
1. a kind of aluminium silicon lanthanium complex oxide powder body material and preparation method thereof, it is characterised in that the preparation method includes following
Step：
A：First by teos hydrolysis, aluminum nitrate solution and rare earth lanthanum nitrate hexahydrate are subsequently adding, obtain mixed solution；
B:The polyethylene glycol of 0.5wt% is added in mixed solution as dispersant；
C：Stirring；
D:Ageing；
E:Drying.
2. a kind of aluminium silicon lanthanium complex oxide powder body material according to claim 1 and preparation method thereof, it is characterised in that
The aluminum nitrate solution concentration added in the step A is 0.3mol/L.
3. a kind of aluminium silicon lanthanium complex oxide powder body material according to claim 1 and preparation method thereof, it is characterised in that
The rare earth lanthanum nitrate hexahydrate concentration added in the step A is 0.1mol/L.
4. a kind of aluminium silicon lanthanium complex oxide powder body material according to claim 1 and preparation method thereof, it is characterised in that
Mixing time is 30min in the step C；Stirring while to mixed liquor in ammoniacal liquor is added dropwise, to mixed liquor pH value be equal to 9.
5. a kind of aluminium silicon lanthanium complex oxide powder body material according to claim 1 and preparation method thereof, it is characterised in that
In the step D, mixed liquor is aged the sediment for obtaining siliceous, aluminium and lanthanum for 1 hour in 70 DEG C of water-baths.
6. a kind of aluminium silicon lanthanium complex oxide powder body material according to claim 1 and preparation method thereof, it is characterised in that
In the step E, sediment is washed into suction filtration and in 110 DEG C of dryings 24 hours, obtain aluminium silicon lanthanium complex oxide powder body material.
7. a kind of aluminium silicon lanthanium complex oxide powder body material according to claim 1 and preparation method thereof, it is characterised in that
In the step E, sediment is obtained into aluminium silicon lanthanium complex oxide powder body material for 2 hours in 500 DEG C of calcinings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710187673.6A CN106925251B (en) | 2017-03-27 | 2017-03-27 | Aluminum-silicon-lanthanum composite oxide powder material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710187673.6A CN106925251B (en) | 2017-03-27 | 2017-03-27 | Aluminum-silicon-lanthanum composite oxide powder material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106925251A true CN106925251A (en) | 2017-07-07 |
| CN106925251B CN106925251B (en) | 2020-07-03 |
Family
ID=59425827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710187673.6A Active CN106925251B (en) | 2017-03-27 | 2017-03-27 | Aluminum-silicon-lanthanum composite oxide powder material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106925251B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1978381A (en) * | 2005-12-09 | 2007-06-13 | 中国科学院兰州化学物理研究所 | Zirconium-base nano composite oxide powder and its preparing method |
| CN101239309A (en) * | 2008-02-22 | 2008-08-13 | 江苏金长江环保汽摩消声器有限公司 | High specific area cerium aluminium base composite oxides and preparation thereof |
| CN101462050A (en) * | 2007-12-19 | 2009-06-24 | 中国石油化工股份有限公司 | Mesoporous composite oxides and catalyst as well as preparation method and aromatization method thereof |
-
2017
- 2017-03-27 CN CN201710187673.6A patent/CN106925251B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1978381A (en) * | 2005-12-09 | 2007-06-13 | 中国科学院兰州化学物理研究所 | Zirconium-base nano composite oxide powder and its preparing method |
| CN101462050A (en) * | 2007-12-19 | 2009-06-24 | 中国石油化工股份有限公司 | Mesoporous composite oxides and catalyst as well as preparation method and aromatization method thereof |
| CN101239309A (en) * | 2008-02-22 | 2008-08-13 | 江苏金长江环保汽摩消声器有限公司 | High specific area cerium aluminium base composite oxides and preparation thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106925251B (en) | 2020-07-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102631917B (en) | Oxidation catalyst for purifying exhaust of diesel vehicle and preparation method for oxidation catalyst | |
| RU2731104C2 (en) | Catalysts based on platinum group metals (pgm) for automotive exhaust treatment | |
| JP5564109B2 (en) | Composition comprising cerium oxide and zirconium oxide with specific porosity, its preparation method and its use in catalysis | |
| CN1085109C (en) | Alumina-, cerium oxide- and zirconium oxide-based compounds possessing high reducibility, the preparation procedure therefor and use in the preparation of catalysts | |
| CN103908959B (en) | Ce-Zr composite alumina oxide material and preparation method thereof | |
| CN109963648A (en) | Mixed oxide based on cerium and zirconium | |
| CN101043941A (en) | High activity denox catalysts for titania oxide supported metal oxide | |
| WO2005123594A2 (en) | Sols comprising mixed transitional metal oxide nanoparticles | |
| CN101696034A (en) | Method for preparing nano-cerium oxide and zirconia solid solution | |
| CN106732521B (en) | Preparation method of high-performance cerium-zirconium solid solution material | |
| CN1668534A (en) | Composition based on zirconium oxide and oxides of cerium, lanthanum and of another rare earth, a method for preparing same and use thereof as catalyst | |
| CN102491389B (en) | Preparation method of high-temperature-resistant alumina with large specific surface area | |
| CN105618032A (en) | Supported manganese based low-temperature denitration catalyst and preparation method thereof | |
| CN109012665A (en) | A kind of double coating three-way catalysts and preparation method thereof | |
| EP3369481A1 (en) | Exhaust gas purifying catalyst and method for producing same, and exhaust gas purification device using same | |
| WO2011039632A2 (en) | Exhaust gas purification catalyst for removing co or hc, and method for manufacturing same | |
| CN104368327A (en) | Catalyst for catalytic methane oxidation and preparation method thereof | |
| CN105363486B (en) | A kind of preparation method of molecular screen base SCR catalyst | |
| CN105233820A (en) | High-stability catalyst for purifying tail gas of gasoline car and preparation method thereof | |
| CN114870860A (en) | Natural gas vehicle tail gas purification catalyst and preparation method thereof | |
| CN1171673C (en) | Prepn process of catalyst for purfying automobile tail gas | |
| CN107442117A (en) | A kind of exhaust gas catalytic conversion | |
| CN103949271A (en) | Cobalt-manganese hydrotalcite-supported nanometer gold catalyst and preparation method thereof | |
| CN105879869A (en) | Catalyst used for hydrogen selective reduction of nitric oxide as well as preparation method and application thereof | |
| JP4316586B2 (en) | Exhaust gas purification catalyst |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |