WO2004011376A1 - マンガン化合物及びその製造方法並びにその利用方法 - Google Patents
マンガン化合物及びその製造方法並びにその利用方法 Download PDFInfo
- Publication number
- WO2004011376A1 WO2004011376A1 PCT/JP2002/007631 JP0207631W WO2004011376A1 WO 2004011376 A1 WO2004011376 A1 WO 2004011376A1 JP 0207631 W JP0207631 W JP 0207631W WO 2004011376 A1 WO2004011376 A1 WO 2004011376A1
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- WIPO (PCT)
- Prior art keywords
- manganese
- manganese compound
- compound
- alkali
- permanganate
- Prior art date
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- 150000002697 manganese compounds Chemical class 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims description 11
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 30
- 239000003513 alkali Substances 0.000 claims abstract description 19
- 239000007864 aqueous solution Substances 0.000 claims abstract description 12
- 150000001875 compounds Chemical class 0.000 claims description 14
- 239000002244 precipitate Substances 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 5
- 150000002696 manganese Chemical class 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- AMWRITDGCCNYAT-UHFFFAOYSA-L manganese oxide Inorganic materials [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 abstract description 24
- 239000000243 solution Substances 0.000 abstract description 10
- 238000002156 mixing Methods 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 229930195733 hydrocarbon Natural products 0.000 abstract description 2
- PPNAOCWZXJOHFK-UHFFFAOYSA-N manganese(2+);oxygen(2-) Chemical class [O-2].[Mn+2] PPNAOCWZXJOHFK-UHFFFAOYSA-N 0.000 abstract 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract 1
- 150000001299 aldehydes Chemical class 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 239000011572 manganese Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 8
- 239000003463 adsorbent Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 235000019645 odor Nutrition 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 6
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 5
- 229910052700 potassium Inorganic materials 0.000 description 5
- 239000011591 potassium Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 229940099596 manganese sulfate Drugs 0.000 description 4
- 235000007079 manganese sulphate Nutrition 0.000 description 4
- 239000011702 manganese sulphate Substances 0.000 description 4
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000012286 potassium permanganate Substances 0.000 description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 239000003518 caustics Substances 0.000 description 3
- -1 hydrocarbon aldehydes Chemical class 0.000 description 3
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 229910002090 carbon oxide Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 235000006748 manganese carbonate Nutrition 0.000 description 2
- 239000011656 manganese carbonate Substances 0.000 description 2
- 229940093474 manganese carbonate Drugs 0.000 description 2
- 229910000016 manganese(II) carbonate Inorganic materials 0.000 description 2
- XMWCXZJXESXBBY-UHFFFAOYSA-L manganese(ii) carbonate Chemical compound [Mn+2].[O-]C([O-])=O XMWCXZJXESXBBY-UHFFFAOYSA-L 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 150000003464 sulfur compounds Chemical class 0.000 description 2
- YIWGJFPJRAEKMK-UHFFFAOYSA-N 1-(2H-benzotriazol-5-yl)-3-methyl-8-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carbonyl]-1,3,8-triazaspiro[4.5]decane-2,4-dione Chemical compound CN1C(=O)N(c2ccc3n[nH]nc3c2)C2(CCN(CC2)C(=O)c2cnc(NCc3cccc(OC(F)(F)F)c3)nc2)C1=O YIWGJFPJRAEKMK-UHFFFAOYSA-N 0.000 description 1
- DEXFNLNNUZKHNO-UHFFFAOYSA-N 6-[3-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperidin-1-yl]-3-oxopropyl]-3H-1,3-benzoxazol-2-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1CCN(CC1)C(CCC1=CC2=C(NC(O2)=O)C=C1)=O DEXFNLNNUZKHNO-UHFFFAOYSA-N 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- FHKPLLOSJHHKNU-INIZCTEOSA-N [(3S)-3-[8-(1-ethyl-5-methylpyrazol-4-yl)-9-methylpurin-6-yl]oxypyrrolidin-1-yl]-(oxan-4-yl)methanone Chemical compound C(C)N1N=CC(=C1C)C=1N(C2=NC=NC(=C2N=1)O[C@@H]1CN(CC1)C(=O)C1CCOCC1)C FHKPLLOSJHHKNU-INIZCTEOSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical group 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 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 1
- CDUFCUKTJFSWPL-UHFFFAOYSA-L manganese(II) sulfate tetrahydrate Chemical compound O.O.O.O.[Mn+2].[O-]S([O-])(=O)=O CDUFCUKTJFSWPL-UHFFFAOYSA-L 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
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- 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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
-
- 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—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
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/32—Manganese, technetium or rhenium
- B01J23/34—Manganese
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
- C01G45/02—Oxides; Hydroxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
- C01G45/12—Manganates manganites or permanganates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/30—Physical properties of adsorbents
- B01D2253/302—Dimensions
- B01D2253/306—Surface area, e.g. BET-specific surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/90—Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/03—Precipitation; Co-precipitation
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Definitions
- the present invention relates to a manganese compound used for removal of environmental pollutants by adsorption or oxidation, a method for producing the same, and use thereof.
- manganese compounds used for adsorption and oxidative removal of odor components, NOx, SOx, VOC, and hydrocarbon aldehydes generated as unburned components due to incomplete combustion of flue gas It relates to its production method and its use. Background art
- adsorbents such as activated carbon and zeolite have been used to remove environmental pollutants, for example, tobacco odor in buildings and car interiors and odors generated from garbage.
- environmental pollutants for example, tobacco odor in buildings and car interiors and odors generated from garbage.
- the removal of odors by these adsorbents has generally been based on physical adsorption due to odor substances being taken into the adsorbents.
- Japanese Unexamined Patent Publication (Kokai) No. 3-186317 discloses a remover containing a manganese compound as a main component.
- a mixture of an aqueous solution of permanganate permeate and an aqueous solution of manganese sulfate containing sulfuric acid are mixed under strong acidic conditions. It is disclosed that manganese oxide (surface area of 240 m 2 / g) by the reaction with sulfide captures and removes sulfur compounds.
- Japanese Patent Application Laid-Open No. Hei 8-173765 discloses that manganese carbonate is thermally decomposed and then treated with nitric acid (manganese oxide surface area 84-185 m 2 / g) and an aqueous solution of potassium permanganate. It is disclosed that manganese oxide (surface area: 204 m 2 / g), which mixes and reacts manganese nitrate and an aqueous solution of manganese nitrate as an adsorbent, removes the odor of sulfur compounds.
- the adsorbent when used for removing environmental pollutants, there is a disadvantage that the adsorbent has a limit in its adsorption capacity, and further steps such as replacement of the adsorbent are required. In addition, there is a disadvantage that the physically adsorbed substance is desorbed due to fluctuations in conditions such as temperature and pressure.
- an object of the present invention is to provide a manganese compound having a significantly higher ability to remove environmental pollutants than before. Disclosure of the invention
- the present inventors have considered that it is necessary to bring manganese oxide into a high surface area state in order to achieve the above object, and have conducted intensive studies on a method for preparing a manganese compound having a high surface area, which has not existed before. Was.
- the manganese compound of the present invention is obtained by mixing an alkali compound and a permanganate with an aqueous solution of a divalent manganese salt under stirring and reacting to form a precipitate, and this precipitate is sufficiently washed.
- a removal test was conducted by a method of removing a gas containing an environmental pollutant by flowing and contacting the obtained manganese compound with the obtained manganese compound, the manganese compound of the present invention showed high removal performance. And found that the present invention was completed.
- the present invention relates to novel manganese compound, the BET surface area of 3 0 O m 2 Roh g or more, preferably manganese compound, characterized in that it is 3 5 O n ⁇ Zg above.
- the content of the alkaline substance in the manganese compound of the present invention is in the range of 1 to 10%, more preferably 3 to 9%, based on the total weight of the compound.
- the present invention relates to a method for producing a manganese compound.
- an alkali compound having a stoichiometric or higher stoichiometric ratio with respect to an aqueous solution (solution A) of a divalent manganese salt and permanganic acid is used.
- Solution A aqueous solution
- Solution B alkali permanganate
- Solution B reacts Solution B with Solution A under stirring to form a precipitate.
- filter the precipitate At 100 ° C. (: up to 200 ° C.).
- nitrate, sulfate, chloride and the like are preferably used as the divalent manganese salt, and sodium and potassium salts are preferably used as the permanganate.
- a hydroxide or carbonate such as sodium, potassium, and lithium.
- the amount of the alkali compound added to the permanganate is preferably in the range of more than 1.0 and not more than 4.0, when expressed as a molar ratio to 1 mol of the alkali permanganate.
- the ratio is less than 1.0, the amount of the alkali compound is too small to finally obtain a manganese compound having a high surface area, and when the ratio is higher than 4, it is also necessary to obtain a compound having a low surface area.
- the drying temperature is preferably from 100 to 200 ° C, and more preferably from 120 to 170 ° C.
- the drying temperature is lower than 100 ° C., it takes a long time for drying, which is not practical.
- the drying temperature is higher than 200 ° C., the surface area of the manganese compound is undesirably reduced.
- the manganese compound thus obtained had a BET surface area of at least 300 m 2 Zg.
- the chemical analysis of the manganese compound of the present invention revealed that a large amount of alkali was contained. Since the manganese compound of the present invention was obtained by thoroughly washing the reaction product with water and then filtering and drying, the alkali was not incorporated as an impurity but was incorporated into the material structure. I understand. Therefore, it is considered that the manganese compound of the present invention is not a manganese oxide but a compound containing a kind of alkali, manganese, and oxygen as components.
- the present invention relates to a method for removing environmental pollutants in a gas by flowing and contacting a gas containing an environmental pollutant with the manganese compound of the present invention.
- the environmental pollutants include ammonia, hydrogen sulfide, mercaptans, aldehydes, carbon monoxide and the like.
- Removal of environmental pollutants may be by force or other methods generally performed by flow reactors. Furthermore, the removal of environmental pollutants is carried out by a method in which the manganese compound of the present invention is charged into a reaction tube, installed in an apparatus, and then a gas containing environmental pollutants is introduced into the reaction tube and contact-removed.
- Environmental pollutant removal performance is calculated by measuring the concentration of environmental pollutants at the outlet of the reaction tube and calculating the rate of decrease relative to the concentration at the inlet.
- the manganese compound of the present invention was measured for its environmental pollutant removal rate, and when compared with the environmental pollutant removal rate of manganese oxide obtained by a known method, showed a significantly higher removal rate than known oxides. Was confirmed, and the present invention was completed.
- BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, examples showing specific configurations and effects of the present invention will be described, but the present invention is not limited thereto.
- Example 1 a manganese compound was obtained in the same manner as in Example 1, except that the amount of the caustic ream added was 230 g.
- the specific surface area of the obtained manganese compound was 350 m 2 Zg, and the content of potassium was 3.1%.
- a manganese compound was obtained in the same manner as in Example 1, except that 900 g of manganese nitrate was used instead of 700 g of manganese sulfate tetrahydrate.
- the specific surface area of the obtained manganese compound was 340 m 2 Zg, and the content of potassium was 3.5%.
- Example 4 A manganese compound was obtained in the same manner as in Example 1, except that 230 g of caustic soda was used instead of 460 g of caustic lium.
- the specific surface area of the obtained manganese compound was 320 m 2 Zg, and the sodium content was 2.2%.
- the reagent manganese carbonate was calcined in air at 350 ° C for 5 hours. 200 g of the obtained calcined product was added to 1 L of 0.1 lmo nitric acid aqueous solution and stirred to perform acid treatment. After filtration and washing with ion exchanged water, the manganese oxide of Comparative Example 1 was obtained. The specific surface area of the obtained manganese oxide was 150 m 2 / g.
- a manganese oxide of Comparative Example 2 was obtained in the same manner as in Example 1 except that caustic lime was not added to the aqueous solution of permanganate lime.
- the specific surface area of the obtained manganese compound was 23 Om 2 ng.
- the performance of the manganese compound of the present invention was evaluated by measuring the performance of removing environmental pollutants from the air. That is, a gas having the following gas composition was measured under the following measurement conditions. The environmental pollutant removal rate was determined by the following equation.
- manganese compounds are; Those sized to 2 mm condyles were used for evaluation.
- Example 1 9 0 7 5 6 0 6 5 8 5 3 5
- Example 2 8 9 7 0 5 7 6 3 8 1 3 2
- Example 3 8 4 7 0 5 5 6 2 7 5 2 8
- Example 4 8 5 6 8 5 3 6 0 7 3 2 4 Comparative example 1 5 0 3 0 2 0 3 5 5 2 9 Comparative example 2 5 8 3 6 2 8 4 1 5 5 4 Industrial potential
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Priority Applications (4)
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JP2004524081A JP4364798B2 (ja) | 2002-07-26 | 2002-07-26 | マンガン化合物の製造方法およびその利用方法 |
CNA028293703A CN1639072A (zh) | 2002-07-26 | 2002-07-26 | 锰化合物、其制备方法及使用方法 |
PCT/JP2002/007631 WO2004011376A1 (ja) | 2002-07-26 | 2002-07-26 | マンガン化合物及びその製造方法並びにその利用方法 |
US10/522,029 US20050214199A1 (en) | 2002-07-26 | 2002-07-26 | Manganese compound, process for producing the same, and method of utilization of the same |
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PCT/JP2002/007631 WO2004011376A1 (ja) | 2002-07-26 | 2002-07-26 | マンガン化合物及びその製造方法並びにその利用方法 |
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US (1) | US20050214199A1 (ja) |
JP (1) | JP4364798B2 (ja) |
CN (1) | CN1639072A (ja) |
WO (1) | WO2004011376A1 (ja) |
Cited By (3)
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WO2010073350A1 (ja) * | 2008-12-25 | 2010-07-01 | ズードケミー触媒株式会社 | NOx吸収剤及びその製造方法並びにその除去方法 |
JP2011045806A (ja) * | 2009-08-25 | 2011-03-10 | Sud-Chemie Catalysts Inc | 金属水銀およびまたは蒸気を含むガス中のガス状水銀除去剤とガス状水銀除去方法 |
JP2013518395A (ja) * | 2010-01-29 | 2013-05-20 | エバレデイ バツテリ カンパニー インコーポレーテツド | 二酸化マンガンを含む触媒電極を有する電気化学電池を製造する方法 |
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CZ301390B6 (cs) * | 2006-08-03 | 2010-02-10 | Dekonta, A. S. | Zpusob sanace horninového prostredí kontaminovaného chlorovanými ethyleny metodou in-situ chemické oxidace s prodlouženým sanacním efektem |
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- 2002-07-26 WO PCT/JP2002/007631 patent/WO2004011376A1/ja active Application Filing
- 2002-07-26 CN CNA028293703A patent/CN1639072A/zh active Pending
- 2002-07-26 US US10/522,029 patent/US20050214199A1/en not_active Abandoned
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JPH0368447A (ja) * | 1989-08-08 | 1991-03-25 | Mitsubishi Gas Chem Co Inc | ニトリル水和触媒の製造方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
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WO2010073350A1 (ja) * | 2008-12-25 | 2010-07-01 | ズードケミー触媒株式会社 | NOx吸収剤及びその製造方法並びにその除去方法 |
JP2011045806A (ja) * | 2009-08-25 | 2011-03-10 | Sud-Chemie Catalysts Inc | 金属水銀およびまたは蒸気を含むガス中のガス状水銀除去剤とガス状水銀除去方法 |
JP2013518395A (ja) * | 2010-01-29 | 2013-05-20 | エバレデイ バツテリ カンパニー インコーポレーテツド | 二酸化マンガンを含む触媒電極を有する電気化学電池を製造する方法 |
Also Published As
Publication number | Publication date |
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JPWO2004011376A1 (ja) | 2005-11-24 |
US20050214199A1 (en) | 2005-09-29 |
CN1639072A (zh) | 2005-07-13 |
JP4364798B2 (ja) | 2009-11-18 |
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