CN100563830C - The environmental friendliness manufacture method of catalyst - Google Patents
The environmental friendliness manufacture method of catalyst Download PDFInfo
- Publication number
- CN100563830C CN100563830C CNB2005100715081A CN200510071508A CN100563830C CN 100563830 C CN100563830 C CN 100563830C CN B2005100715081 A CNB2005100715081 A CN B2005100715081A CN 200510071508 A CN200510071508 A CN 200510071508A CN 100563830 C CN100563830 C CN 100563830C
- Authority
- CN
- China
- Prior art keywords
- catalyst
- carrier
- precipitation
- manufacture method
- environmental friendliness
- 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.)
- Expired - Fee Related
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 230000007613 environmental effect Effects 0.000 title claims abstract description 14
- 238000001556 precipitation Methods 0.000 claims abstract description 31
- 238000001035 drying Methods 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000005406 washing Methods 0.000 claims abstract description 17
- 238000000975 co-precipitation Methods 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 11
- 239000000470 constituent Substances 0.000 claims abstract description 10
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 9
- 150000007524 organic acids Chemical class 0.000 claims abstract description 9
- 230000001376 precipitating effect Effects 0.000 claims abstract description 9
- 229910002651 NO3 Inorganic materials 0.000 claims abstract description 7
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002244 precipitate Substances 0.000 claims abstract description 4
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 36
- 229910052748 manganese Inorganic materials 0.000 claims description 21
- 239000000919 ceramic Substances 0.000 claims description 19
- 230000000694 effects Effects 0.000 claims description 18
- 206010013786 Dry skin Diseases 0.000 claims description 17
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 235000015165 citric acid Nutrition 0.000 claims description 12
- 238000007598 dipping method Methods 0.000 claims description 10
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 8
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 claims description 5
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 claims description 5
- 239000001630 malic acid Substances 0.000 claims description 5
- 235000011090 malic acid Nutrition 0.000 claims description 5
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- 229910052709 silver Inorganic materials 0.000 claims description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 4
- 238000005470 impregnation Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910021645 metal ion Inorganic materials 0.000 claims description 4
- 229910052763 palladium Inorganic materials 0.000 claims description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 claims description 2
- 229910052684 Cerium Inorganic materials 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 2
- 229910052779 Neodymium Inorganic materials 0.000 claims description 2
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 2
- 229910052772 Samarium Inorganic materials 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 2
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 2
- 239000001099 ammonium carbonate Substances 0.000 claims description 2
- 235000012501 ammonium carbonate Nutrition 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000004310 lactic acid Substances 0.000 claims description 2
- 235000014655 lactic acid Nutrition 0.000 claims description 2
- 229910052746 lanthanum Inorganic materials 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 150000003891 oxalate salts Chemical class 0.000 claims description 2
- 235000006408 oxalic acid Nutrition 0.000 claims description 2
- 229940072033 potash Drugs 0.000 claims description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 2
- 235000015320 potassium carbonate Nutrition 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 239000011975 tartaric acid Substances 0.000 claims description 2
- 235000002906 tartaric acid Nutrition 0.000 claims description 2
- 229910052727 yttrium Inorganic materials 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 27
- 238000002360 preparation method Methods 0.000 abstract description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 6
- 239000001569 carbon dioxide Substances 0.000 abstract description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 3
- 238000011109 contamination Methods 0.000 abstract description 3
- 239000000706 filtrate Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 150000003839 salts Chemical class 0.000 abstract description 3
- 239000002341 toxic gas Substances 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 38
- 239000010949 copper Substances 0.000 description 37
- 239000011572 manganese Substances 0.000 description 37
- 229910052878 cordierite Inorganic materials 0.000 description 15
- 239000008367 deionised water Substances 0.000 description 15
- 229910021641 deionized water Inorganic materials 0.000 description 15
- 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 15
- 238000005303 weighing Methods 0.000 description 15
- 229910052751 metal Inorganic materials 0.000 description 14
- 239000002184 metal Substances 0.000 description 14
- 239000007864 aqueous solution Substances 0.000 description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 12
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 9
- 239000002243 precursor Substances 0.000 description 8
- 239000011734 sodium Substances 0.000 description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 239000002912 waste gas Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000007084 catalytic combustion reaction Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 229910052700 potassium Inorganic materials 0.000 description 3
- 101710134784 Agnoprotein Proteins 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 101150003085 Pdcl gene Proteins 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- -1 containing K Chemical class 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000003348 petrochemical agent Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The present invention relates to the environmental friendliness manufacture method of catalyst manufacture method technical field, particularly a kind of catalyst.The objective of the invention is in processes such as the drying of making catalyst, roasting, to emit the existing drawbacks of toxic gas contaminated environment such as nitrogen oxide thus because of using materials such as nitrate, a kind of environmental friendliness manufacture method of catalyst is provided at existing method for preparing catalyst.The environmental friendliness manufacture method of catalyst of the present invention is: with the active constituent predecessor water dissolving of certain proportioning, add the precipitating reagent co-precipitation, the filtration washing precipitation will precipitate and organic acid soln mixes, be impregnated on the carrier, drying, roasting make catalyst then.Can not produce nitrogen oxide in the Preparation of catalysts process of the present invention, have only water and carbon dioxide to discharge; The recyclable utilization of contained salt in the filtrate after precipitation is washed after filtration can not cause severe contamination to environment, has eco-friendly characteristics.
Description
Technical field
The present invention relates to the environmental friendliness manufacture method of catalyst manufacture method technical field, particularly a kind of catalyst.
Background technology
All relate to using and discharging of organic volatile compound (VOCs) in the production process of industry such as petrochemical industry, plating, printing, coating, tire manufacturing.In addition, along with the increase of automobile quantity, the emission of automobile wastes amount also increases greatly.Waste gas such as these industrial waste gases and vehicle exhaust can cause serious environmental to pollute as the not treated atmosphere that directly enters.The key of the purified treatment of these waste gas is preparations of exhaust gas catalyst.Numerous by the disclosed catalyst amounts of Chinese patent literature at present, for example:
The patent No. be 90105061.X with molecular sieve and Al
2O
3Mixture is a carrier, is the catalyst for purification of nitrogen oxides of active component with iron, copper, alum and/or trace platinum element, uses this catalyst at 30000～80000 o'clock
-1Under the air speed, NH
3/ NO
xBe can efficiently purify in 0.9～1.2 o'clock, advantages such as that catalyst has is nontoxic, the ammonia consumption is low, the life-span is long.
The patent No. be 02136342.0 be used for catalyst for purifying exhaust gases from diesel engine and preparation method thereof, its carrier is spherical porous activated alumina, active constituent is made up of compounds such as containing K, La, Cu, Co, Fe, this catalyst can promote the oxidation-reduction reaction each other of particulate and nitrogen oxide in the diesel engine vent gas, thus catalysis when realizing particulate and nitrogen oxide.
Number of patent application be 02133123.5 by the honeycomb ceramic carrier skeleton of bulk with apply catalyst for catalytic combustion that is used for the organic waste-gas purification processing that coating on it and noble metal active component form and preparation method thereof, combine between its coating and honeycomb ceramic carrier skeleton firmly, difficult drop-off during use, noble metal supports with infusion process and has put forward its effective rate of utilization, this catalyst is used for organic waste-gas purification to be handled, and has resistance to elevated temperatures and thermal shock resistance preferably.
In addition, in the Speciality Petrochemicals production field, also be extensive use of various catalyst.
Materials such as nitrate in existing all kinds of Preparation of catalysts processes, have been used usually, in processes such as the drying of making catalyst, roasting, can emit a large amount of toxic gases such as nitrogen oxide, this will can cause severe contamination to environment, and this is existing method for preparing catalyst existing one big drawback.
Summary of the invention
The objective of the invention is in processes such as the drying of making catalyst, roasting, to emit the existing drawbacks of toxic gas contaminated environment such as nitrogen oxide thus because of using materials such as nitrate, a kind of environmental friendliness manufacture method of catalyst is provided at existing method for preparing catalyst.
The environmental friendliness manufacture method of catalyst of the present invention is: with the active constituent predecessor water dissolving of certain proportioning, add the precipitating reagent co-precipitation, the filtration washing precipitation will precipitate and organic acid soln mixes, be impregnated on the carrier, drying, roasting make catalyst then.
Wherein, carrier can be selected ceramic honeycomb carrier, soild oxide etc. for use.
The active constituent predecessor that is adopted can be selected more than one in the sulfate, nitrate, acetate, oxalates, bromide, chloride of Cr, Mn, Fe, Co, Ni, Cu, Pd, Pt, Au, Ag, Y, La, Ce, Pr, Nd, Sm for use.
The precipitating reagent that is adopted is more than one in sodium carbonate, potash, sodium acid carbonate, saleratus, NaOH, potassium hydroxide, ammonium carbonate, the carbonic hydroammonium.The amount of used precipitating reagent is 0.5～4 times of the total amount of substance of metal ion in the active constituent predecessor.
The organic acid that is adopted is more than one in citric acid, malic acid, tartaric acid, lactic acid and the oxalic acid.The total amount of substance of used organic acid is 0.5～4 times of the total amount of substance of metal ion in the active constituent predecessor.
The environmental friendliness preparation process of catalyst of the present invention is as follows:
(1) with the dissolving of catalyst activity component predecessor, adds precipitating reagent, filtration, washing precipitation;
(2) will precipitate and organic acid soln mixes, wherein, take out dipping back carrier, and ℃ place down in room temperature to 50 and dried in 0.5～24 hour carrier impregnation, again in 80～140 ℃ of dryings 0.5～24 hour, carrier behind the dry dipping;
(3) with 400～800 ℃ of roastings 0.5～8 hour in high temperature furnace of carrier behind the dipping of drying, promptly make catalyst.
Can not produce nitrogen oxide in the Preparation of catalysts process of the present invention, have only water and carbon dioxide to discharge; The recyclable utilization of contained salt in the filtrate after precipitation is washed after filtration can not cause severe contamination to environment, has eco-friendly characteristics.
The specific embodiment
Below by embodiment the environmental friendliness manufacture method of catalyst of the present invention is described further, but the present invention is not limited to these embodiment.
Embodiment 1
Take by weighing 0.74g Cu (NO
3)
23H
2Mn (the NO of O and 5.14g 50%
3)
2Solution mixes the back and adds the proper amount of deionized water dissolving, adds and contains 1.85g Na
2CO
3The aqueous solution carry out co-precipitation, filter, washing precipitation, precipitation is dissolved in the solution that contains the 3.65g citric acid, impregnated in again on the 29.48g cordierite ceramic honeycomb carrier, under room temperature to 50 ℃, dry in the air to dry tack free, again in 120 ℃ of dryings 1 hour, 500 ℃ of roastings 1 hour in Muffle furnace then.Repeat said process 2 times, catalyst is promptly made in 500 ℃ of roastings 4 hours in Muffle furnace for the last time.The load capacity of the oxide of this catalyst activity component copper, manganese by the percentage that metal accounts for the carrier quality is: Cu 2%, Mn 8%.
Embodiment 2
Take by weighing 0.78g Cu (NO
3)
23H
2Mn (the NO of O and 5.28g 50%
3)
2Solution mixes the back and adds the proper amount of deionized water dissolving, adds and contains 3.82g Na
2CO
3The aqueous solution carry out co-precipitation, filter, washing precipitation, precipitation is dissolved in the solution that contains the 3.78g citric acid, impregnated in again on the 30.44g cordierite ceramic honeycomb carrier, under room temperature to 50 ℃, dry in the air to dry tack free, again in 120 ℃ of dryings 1 hour, 500 ℃ of roastings 1 hour in Muffle furnace then.Repeat said process 2 times, catalyst is promptly made in 500 ℃ of roastings 4 hours in Muffle furnace for the last time.The load capacity of the oxide of this catalyst activity component copper, manganese by the percentage that metal accounts for the carrier quality is: Cu 2%, Mn 8%.
Embodiment 3
Take by weighing 0.73g Cu (NO
3)
23H
2Mn (the NO of O and 2.01g 50%
3)
2Solution mixes the back and adds the proper amount of deionized water dissolving, adds and contains 2.35g K
2CO
3The aqueous solution carry out co-precipitation, filter, washing precipitation, precipitation is dissolved in the solution that contains the 3.58g citric acid, impregnated in again on the 28.85g cordierite ceramic honeycomb carrier, under room temperature to 50 ℃, dry in the air to dry tack free, again in 120 ℃ of dryings 1 hour, 500 ℃ of roastings 1 hour in Muffle furnace then.Repeat said process 2 times, catalyst is promptly made in 500 ℃ of roastings 4 hours in Muffle furnace for the last time.The load capacity of the oxide of this catalyst activity component copper, manganese by the percentage that metal accounts for the carrier quality is: Cu 2%, Mn 8%.
Embodiment 4
Take by weighing 0.73g Cu (NO
3)
23H
2Mn (the NO of O and 5.02g 50%
3)
2Solution mixes the back and adds the proper amount of deionized water dissolving, adds and contains 1.64g (NH
4)
2CO
3The aqueous solution carry out co-precipitation, filter, washing precipitation, precipitation is dissolved in the solution that contains the 3.58g citric acid, impregnated in again on the 28.89g cordierite ceramic honeycomb carrier, under room temperature to 50 ℃, dry in the air to dry tack free, again in 120 ℃ of dryings 1 hour, 500 ℃ of roastings 1 hour in Muffle furnace then.Repeat said process 2 times, catalyst is promptly made in 500 ℃ of roastings 4 hours in Muffle furnace for the last time.The load capacity of the oxide of this catalyst activity component copper, manganese by the percentage that metal accounts for the carrier quality is: Cu 2%, Mn 8%.
Embodiment 5
Take by weighing 0.77g Cu (NO
3)
23H
2O, 0.32g AgNO
3Mn (NO with 3.91g 50%
3)
2Solution mixes the back and adds the proper amount of deionized water dissolving, adds and contains 1.68g Na
2CO
3The aqueous solution carry out co-precipitation, filter, washing precipitation, precipitation is dissolved in the solution that contains the 3.34g citric acid, impregnated in again on the 29.99g cordierite ceramic honeycomb carrier, under room temperature to 50 ℃, dry in the air to dry tack free, again in 120 ℃ of dryings 1 hour, 500 ℃ of roastings 1 hour in Muffle furnace then.Repeat said process 2 times, catalyst is promptly made in 500 ℃ of roastings 4 hours in Muffle furnace for the last time.The load capacity of this catalyst activity component copper, manganese, silver by the percentage that metal accounts for the carrier quality is: Cu 2%, Mn 6%, Ag 2%.
Embodiment 6
Take by weighing 0.16g PdCl
2, be dissolved in the HCl aqueous solution and 0.73g Cu (NO
3)
23H
2Mn (the NO of O, 4.38g 50%
3)
2Solution mixes the back and adds the proper amount of deionized water dissolving, adds and contains 1.62g Na
2CO
3The aqueous solution carry out co-precipitation, filtration, washing precipitation, precipitation is put into the solution that contains the 2.04g malic acid, mix, impregnated in again on the 28.79g cordierite ceramic honeycomb carrier, under room temperature to 50 ℃, dry in the air to dry tack free, again in 120 ℃ of dryings 1 hour, 500 ℃ of roastings 1 hour in Muffle furnace then.Repeat said process 2 times, catalyst is promptly made in 500 ℃ of roastings 4 hours in Muffle furnace for the last time.The load capacity of this catalyst activity component copper, manganese, palladium by the percentage that metal accounts for the carrier quality is: Cu 2%, Mn 7%, Pd 1%.
Embodiment 7
Take by weighing 0.21g H
2PtCl
6NH
2O, 0.76g Cu (NO
3)
23H
2Mn (the NO of O and 4.58g 50%
3)
2Solution mixes the back and adds the proper amount of deionized water dissolving, adds and contains 2.20g K
2CO
3The aqueous solution carry out co-precipitation, filtration, washing precipitation, precipitation is put into the solution that contains the 2.14g malic acid, mix, impregnated in again on the 30.11g cordierite ceramic honeycomb carrier, under room temperature to 50 ℃, dry in the air to dry tack free, again in 120 ℃ of dryings 1 hour, 500 ℃ of roastings 1 hour in Muffle furnace then.Repeat said process 2 times, catalyst is promptly made in 500 ℃ of roastings 4 hours in Muffle furnace for the last time.The load capacity of this catalyst activity component copper, manganese, platinum by the percentage that metal accounts for the carrier quality is: Cu 2%, Mn 7%, Pt 1%.
Embodiment 8
Take by weighing 0.75g Cu (NO
3)
23H
2Mn (the NO of O and 4.51g 50%
3)
2Solution mixes the back and adds the proper amount of deionized water dissolving, adds and contains 2.17g K
2CO
3The aqueous solution carry out co-precipitation, filtration, washing precipitation, precipitation is dissolved in the solution that contains the 3.30g citric acid, add 0.14g KOH again, impregnated in then on the 29.65g cordierite ceramic honeycomb carrier, under room temperature to 50 ℃, dry in the air to dry tack free, again in 120 ℃ of dryings 1 hour, 500 ℃ of roastings 1 hour in Muffle furnace then.Repeat said process 2 times, catalyst is promptly made in 500 ℃ of roastings 4 hours in Muffle furnace for the last time.The load capacity of this catalyst activity component copper, manganese, potassium by the percentage that metal accounts for the carrier quality is: Cu 2%, Mn 7%, K 1%.
Embodiment 9
Take by weighing 0.70g Cu (NO
3)
23H
2Mn (the NO of O and 4.82g 50%
3)
2Solution mixes the back and adds the proper amount of deionized water dissolving, adds and contains 1.74g Na
2CO
3The aqueous solution carry out co-precipitation, filter, washing precipitation, precipitation is dissolved in the solution that contains the 2.20g malic acid, impregnated in again on the 27.77g cordierite ceramic honeycomb carrier, under room temperature to 50 ℃, dry in the air to dry tack free, again in 120 ℃ of dryings 1 hour, 500 ℃ of roastings 1 hour in Muffle furnace then.Repeat said process 2 times, catalyst is promptly made in 500 ℃ of roastings 4 hours in Muffle furnace for the last time.The load capacity of the oxide of this catalyst activity component copper, manganese by the percentage that metal accounts for the carrier quality is: Cu 2%, Mn 8%.
Embodiment 10
Take by weighing 0.76g Cu (NO
3)
23H
2Mn (the NO of O and 5.19g 50%
3)
2Solution mixes the back and adds the proper amount of deionized water dissolving, adds and contains 1.87g Na
2CO
3The aqueous solution carry out co-precipitation, filter, washing precipitation, precipitation is dissolved in contains in the tartaric solution of 2.64g, impregnated in again on the 29.85g cordierite ceramic honeycomb carrier, under room temperature to 50 ℃, dry in the air to dry tack free, again in 120 ℃ of dryings 1 hour, 500 ℃ of roastings 1 hour in Muffle furnace then.Repeat said process 2 times, catalyst is promptly made in 500 ℃ of roastings 4 hours in Muffle furnace for the last time.The load capacity of the oxide of this catalyst activity component copper, manganese by the percentage that metal accounts for the carrier quality is: Cu 2%, Mn 8%.
Embodiment 11
Take by weighing 0.36g La
2O
3Be dissolved in salpeter solution and 0.97g Ce (NO
3)
36H
2Mn (the NO of O, 1.60g 50%
3)
2Solution mixes the back and adds the proper amount of deionized water dissolving, adds and contains 0.95g Na
2CO
3The aqueous solution carry out co-precipitation, filtration, washing precipitation, precipitation is put into the solution that contains the 1.88g citric acid, mix, impregnated in again on the 32.63g cordierite ceramic honeycomb carrier, under room temperature to 50 ℃, dry in the air to dry tack free, again in 120 ℃ of dryings 1 hour, 500 ℃ of roastings 1 hour in Muffle furnace then.Repeat said process 2 times, catalyst is promptly made in 500 ℃ of roastings 4 hours in Muffle furnace for the last time.The load capacity of this catalyst activity component is pressed La
0.5Ce
0.5MnO
3Meter accounts for 10% of carrier quality.
Embodiment 12
Take by weighing the Mn (NO of 3.33g 50%
3)
2Solution adds proper amount of deionized water, adds and contains 0.99g Na
2CO
3The aqueous solution carry out co-precipitation, filter, washing precipitation, precipitation is dissolved in the solution of 1.96g citric acid, impregnated in again on the 10.23g MgO carrier, at room temperature placed 12 hours, again in 90 ℃ of dryings 2 hours, catalyst is made in 600 ℃ of roastings 4 hours in Muffle furnace at last.The load capacity of this catalyst activity component accounts for 5% of carrier quality by metal Mn.
Comparative Examples 1
Take by weighing 2.30g Cu (NO
3)
23H
2Mn (the NO of O, 15.80g 50%
3)
2Solution and 11.27g citric acid mix the back and add the proper amount of deionized water dissolving, get precursor solution.The 30.27g cordierite honeycomb ceramic is immersed the absorption of precursor solution dipping, take out after 3～5 minutes, blow out residual solution in the honeycomb channel, this moment, precursor solution also had most of residue, cordierite honeycomb ceramic ℃ is dried in the air to dry tack free in room temperature to 50, again in 120 ℃ of dryings 1 hour, 500 ℃ of roastings 1 hour in Muffle furnace then.Repeat said process 2～3 times, can be fully with the absorption of precursor solution dipping, catalyst is promptly made in 500 ℃ of roastings 4 hours in Muffle furnace for the last time.The load capacity of the oxide of this catalyst activity component copper, manganese by the percentage that metal accounts for the carrier quality is: Cu 2%, Mn 8%.
Comparative Examples 5
Take by weighing 2.12g Cu (NO
3)
23H
2Mn (the NO of O, 10.91g 50%
3)
2Solution, 0.88g AgNO
3With the 9.34g citric acid, mix the back and add the proper amount of deionized water dissolving, get precursor solution.The 27.91g cordierite honeycomb ceramic is immersed the absorption of precursor solution dipping, take out after 3～5 minutes, blow out residual solution in the honeycomb channel, this moment, precursor solution also had most of residue, cordierite honeycomb ceramic ℃ is dried in the air to dry tack free in room temperature to 50, again in 120 ℃ of dryings 1 hour, 500 ℃ of roastings 1 hour in Muffle furnace then.Repeat said process 2～3 times, can be fully with the absorption of precursor solution dipping, catalyst is promptly made in 500 ℃ of roastings 4 hours in Muffle furnace for the last time.This catalyst activity component load capacity by the percentage that metal accounts for the carrier quality is: Cu 2%, Mn 6%, Ag 2%.
Comparative Examples 12
Take by weighing the Mn (NO of 3.43g 50%
3)
2Solution adds proper amount of deionized water, adds 10.54g MgO carrier again and floods, and places 12 hours under the room temperature, and again in 90 ℃ of dryings 2 hours, catalyst is made in 600 ℃ of roastings 4 hours in Muffle furnace at last.The load capacity of this catalyst activity component accounts for 5% of carrier quality by metal Mn.
Make prepared catalyst in the above embodiment of the present invention 1～embodiment 11 and Comparative Examples 1, the Comparative Examples 5 cylindrical, fill in the fixed-bed catalytic combustion reactor, with the catalytic combustion of toluene as probe reaction, carry out the exhaust-gas purifying performance evaluation, catalyst filling specification is diameter 20mm, long 40mm, through the air carrying band toluene reactor of flowing through, the aerial content of toluene (4 ± 0.2) gm
-3, air speed 10000h
-1The results are shown in Table 1.
Contrast is found by experiment, when the catalyst that the present invention makes (embodiment 1～embodiment 11) is used for the waste gas purification processing, has and the similar catalytic performance of the catalyst that makes with the roasting of nitrate direct impregnation (Comparative Examples 1, Comparative Examples 5).
Catalyst prepared in the embodiment of the invention 12 and the Comparative Examples 12 is respectively got 0.50g be used for acetonitrile and the synthetic acrylonitrile experiment of methyl alcohol selectivity, be reflected on the atmospheric fixed bed flow reactor and carry out CH
3CN: CH
3OH is that the reaction mixture of 1: 10 (mol ratio) is injected into via a high pressure constant flow pump in 150 ℃ the preheater, and the reaction mixture flow is 0.10mL/min, is that the nitrogen of 70mL/min dilutes catalyst amount 0.5g, tube inner diameter 8mm by flow again.The results are shown in Table 2.
Contrast is found by experiment, when the catalyst that the present invention makes (embodiment 12) is used for the synthetic acrylonitrile of acetonitrile and methyl alcohol selectivity, has and the similar catalytic performance of the catalyst that makes with the roasting of nitrate direct impregnation (Comparative Examples 12).
And the present invention prepares in the process of exhaust gas purifying catalyst does not have nitrogen oxide to emit, and has only water and carbon dioxide to emit, and the recyclable utilization of contained salt has eco-friendly characteristics in the filtrate.
The toluene catalytically combustion efficiency of table 1 catalyst
The acetonitrile of table 2 catalyst and methyl alcohol selectivity are synthesized the acrylonitrile effect
Claims (2)
1, a kind of environmental friendliness manufacture method of catalyst, it is characterized in that active constituent predecessor water dissolving with certain proportioning, add the precipitating reagent co-precipitation, the filtration washing precipitation, to precipitate and the organic acid soln mixing, be impregnated on the carrier, drying, roasting make catalyst then, and wherein: the carrier that is adopted is a ceramic honeycomb carrier; The active constituent predecessor that is adopted is more than one in sulfate, nitrate, acetate, oxalates, bromide and the chloride of Cr, Mn, Fe, Co, Ni, Cu, Pd, Pt, Au, Ag, Y, La, Ce, Pr, Nd and Sm; The precipitating reagent that is adopted is more than one in sodium carbonate, potash, sodium acid carbonate, saleratus, ammonium carbonate, the carbonic hydroammonium, and the amount of used precipitating reagent is 0.5～4 times of the total amount of substance of metal ion in the active constituent predecessor; The organic acid that is adopted is more than one in citric acid, malic acid, tartaric acid, lactic acid and the oxalic acid, and the total amount of substance of used organic acid is 0.5～4 times of the total amount of substance of metal ion in the active constituent predecessor.
2, the environmental friendliness manufacture method of catalyst according to claim 1 is characterized in that the production stage of environmental friendliness manufacture method of catalyst is as follows:
(1) with the dissolving of catalyst activity component predecessor, adds precipitating reagent, filtration, washing precipitation;
(2) will precipitate and organic acid soln mixes, wherein, take out dipping back carrier, and ℃ place down in room temperature to 50 and dried in 0.5～24 hour carrier impregnation, again in 80～140 ℃ of dryings 0.5～24 hour, carrier behind the dry dipping;
(3) with 400～800 ℃ of roastings 0.5～8 hour in high temperature furnace of carrier behind the dipping of drying, promptly make catalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100715081A CN100563830C (en) | 2005-04-30 | 2005-04-30 | The environmental friendliness manufacture method of catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100715081A CN100563830C (en) | 2005-04-30 | 2005-04-30 | The environmental friendliness manufacture method of catalyst |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1857777A CN1857777A (en) | 2006-11-08 |
| CN100563830C true CN100563830C (en) | 2009-12-02 |
Family
ID=37296765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100715081A Expired - Fee Related CN100563830C (en) | 2005-04-30 | 2005-04-30 | The environmental friendliness manufacture method of catalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100563830C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106914272A (en) * | 2017-03-08 | 2017-07-04 | 湖南云平环保科技有限公司 | Desulphurization denitration catalyst of CuMnCePt/ZSM 5 and preparation method thereof |
-
2005
- 2005-04-30 CN CNB2005100715081A patent/CN100563830C/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 陶瓷蜂窝载体表面Ce-Zr-O固溶体涂层的表征. 钟依均等.浙江师范大学学报（自然科学版），第26卷第3期. 2003 |
| 陶瓷蜂窝载体表面Ce-Zr-O固溶体涂层的表征. 钟依均等.浙江师范大学学报（自然科学版），第26卷第3期. 2003 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1857777A (en) | 2006-11-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2883590B1 (en) | Transition-metal vanadate or mixed transition-metal / rare earth vanadate based catalyst composition for selective catalytic reduction of exhaust gases | |
| JP5185942B2 (en) | Vanadium-free catalyst for selective catalytic reduction and process for producing the same | |
| CN100427208C (en) | Method for preparing catalyst to purify automobile tail gas | |
| CN110605114B (en) | Application of mullite oxide supported catalyst in low-temperature selective catalytic reduction denitration | |
| CN101163537A (en) | Catalyst for catalytically reducing nitrogen oxide and catalyst structure | |
| KR20070045899A (en) | Exhaust gas purifying device for diesel engine | |
| CN1830529A (en) | Organic waste gas catalytic combustion catalyst and its manufacturing method | |
| CN109590021A (en) | A kind of NH_3 leakage catalyst of interlayer structure and its preparation method and application | |
| JP3788141B2 (en) | Exhaust gas purification system | |
| CN111054374A (en) | Catalytic combustion catalyst for PTA oxidized tail gas and application thereof | |
| CN113751023B (en) | Bimetallic-based catalyst for low-temperature high-selectivity catalytic oxidation of ammonia, preparation method and application thereof | |
| CN102000600A (en) | Integral normal-temperature micro nitrogen oxide purification material and preparation method thereof | |
| CN110075909A (en) | A kind of purification organic compounds containing nitrogen exhaust gas catalyst | |
| CN106076112B (en) | It is a kind of to remove N simultaneously2O and NOxMethod | |
| CN100563830C (en) | The environmental friendliness manufacture method of catalyst | |
| WO2012160437A1 (en) | Exhaust gas control system, exhaust gas purification catalyst and method for the production of exhaust gas purification catalyst | |
| CN106563467B (en) | A kind of monoblock type scavenging material and preparation and application for eliminating carbon monoxide in surrounding air | |
| JP3251009B2 (en) | Exhaust gas purification catalyst | |
| JP4275801B2 (en) | Exhaust gas purification catalyst | |
| JP2001058130A (en) | Catalyst for nitrogen oxide decomposition | |
| JP3296141B2 (en) | Exhaust gas purification catalyst and method for producing the same | |
| CN113751082A (en) | Coating method of non-noble metal SDPF double-coating catalyst | |
| JP2006341152A (en) | Catalyst carrier manufacturing method and manufacturing method of exhaust gas purifying catalyst | |
| JP4697506B2 (en) | Exhaust gas purification catalyst and method for producing the same | |
| CN106861718A (en) | A kind of cleaning catalyst for tail gases of automobiles and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091202 Termination date: 20120430 |