JP7461341B2 - ブラウンミラライト系多結晶溶融生成物 - Google Patents
ブラウンミラライト系多結晶溶融生成物 Download PDFInfo
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- JP7461341B2 JP7461341B2 JP2021512865A JP2021512865A JP7461341B2 JP 7461341 B2 JP7461341 B2 JP 7461341B2 JP 2021512865 A JP2021512865 A JP 2021512865A JP 2021512865 A JP2021512865 A JP 2021512865A JP 7461341 B2 JP7461341 B2 JP 7461341B2
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- 239000000843 powder Substances 0.000 claims description 53
- 229910052791 calcium Inorganic materials 0.000 claims description 46
- 229910052760 oxygen Inorganic materials 0.000 claims description 43
- 229910052712 strontium Inorganic materials 0.000 claims description 43
- 229910052742 iron Inorganic materials 0.000 claims description 40
- 239000007858 starting material Substances 0.000 claims description 36
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 32
- 239000001301 oxygen Substances 0.000 claims description 32
- 239000002245 particle Substances 0.000 claims description 31
- 239000007788 liquid Substances 0.000 claims description 29
- 239000003054 catalyst Substances 0.000 claims description 27
- 239000000203 mixture Substances 0.000 claims description 27
- 239000000155 melt Substances 0.000 claims description 21
- 238000002844 melting Methods 0.000 claims description 17
- 230000008018 melting Effects 0.000 claims description 17
- 239000007787 solid Substances 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims description 8
- 239000000446 fuel Substances 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 229910052738 indium Inorganic materials 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 65
- 239000011575 calcium Substances 0.000 description 58
- 238000000034 method Methods 0.000 description 33
- 239000012530 fluid Substances 0.000 description 18
- 230000003197 catalytic effect Effects 0.000 description 14
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 12
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 11
- 229910052802 copper Inorganic materials 0.000 description 11
- 239000010949 copper Substances 0.000 description 11
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 11
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 10
- 150000001875 compounds Chemical class 0.000 description 10
- 229910052719 titanium Inorganic materials 0.000 description 10
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 8
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 8
- 229910002091 carbon monoxide Inorganic materials 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 7
- 238000002441 X-ray diffraction Methods 0.000 description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 description 6
- 229910052748 manganese Inorganic materials 0.000 description 6
- 229910052759 nickel Inorganic materials 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 description 5
- 235000010216 calcium carbonate Nutrition 0.000 description 5
- 238000005266 casting Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000007711 solidification Methods 0.000 description 5
- 230000008023 solidification Effects 0.000 description 5
- 229910000018 strontium carbonate Inorganic materials 0.000 description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 4
- 239000000499 gel Substances 0.000 description 4
- 239000001307 helium Substances 0.000 description 4
- 229910052734 helium Inorganic materials 0.000 description 4
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 229910052697 platinum Inorganic materials 0.000 description 4
- 239000002243 precursor Substances 0.000 description 4
- LEDMRZGFZIAGGB-UHFFFAOYSA-L strontium carbonate Chemical compound [Sr+2].[O-]C([O-])=O LEDMRZGFZIAGGB-UHFFFAOYSA-L 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 229910052688 Gadolinium Inorganic materials 0.000 description 3
- 229910052777 Praseodymium Inorganic materials 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 239000010431 corundum Substances 0.000 description 3
- 229910052593 corundum Inorganic materials 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 239000002019 doping agent Substances 0.000 description 3
- 229910052733 gallium Inorganic materials 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 229910052746 lanthanum Inorganic materials 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- NWAHZABTSDUXMJ-UHFFFAOYSA-N platinum(2+);dinitrate Chemical compound [Pt+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O NWAHZABTSDUXMJ-UHFFFAOYSA-N 0.000 description 3
- 229910052706 scandium Inorganic materials 0.000 description 3
- 238000001694 spray drying Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 150000004679 hydroxides Chemical class 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- IATRAKWUXMZMIY-UHFFFAOYSA-N strontium oxide Inorganic materials [O-2].[Sr+2] IATRAKWUXMZMIY-UHFFFAOYSA-N 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 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 1
- -1 M and M' Chemical compound 0.000 description 1
- 229910002406 SrFeO2.5 Inorganic materials 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 229960004543 anhydrous citric acid Drugs 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000002447 crystallographic data Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010130 dispersion processing Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009837 dry grinding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 125000001475 halogen functional group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- BDAGIHXWWSANSR-NJFSPNSNSA-N hydroxyformaldehyde Chemical compound O[14CH]=O BDAGIHXWWSANSR-NJFSPNSNSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000009666 routine test Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000007655 standard test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- RIUWBIIVUYSTCN-UHFFFAOYSA-N trilithium borate Chemical compound [Li+].[Li+].[Li+].[O-]B([O-])[O-] RIUWBIIVUYSTCN-UHFFFAOYSA-N 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000004876 x-ray fluorescence Methods 0.000 description 1
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
- C04B35/2683—Other ferrites containing alkaline earth metals or lead
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
- C04B35/2608—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead
- C04B35/2633—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead containing barium, strontium or calcium
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/78—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with alkali- or alkaline earth metals
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- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
- H01M4/9016—Oxides, hydroxides or oxygenated metallic salts
- H01M4/9025—Oxides specially used in fuel cell operating at high temperature, e.g. SOFC
- H01M4/9033—Complex oxides, optionally doped, of the type M1MeO3, M1 being an alkaline earth metal or a rare earth, Me being a metal, e.g. perovskites
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
- H01M4/9075—Catalytic material supported on carriers, e.g. powder carriers
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- C04B2235/3213—Strontium oxides or oxide-forming salts thereof
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- C04B2235/3215—Barium oxides or oxide-forming salts thereof
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Description
ゾル-ゲル、特にPechini法によるゾル-ゲル、
固形焼結合成、
自己燃焼。
-0.85≦y≦1.05、及び/又はz≦0.15、及び/又は0.75≦t≦1.05、及び/又はu≦0.25、
-ブラウンミラライト相の含有量(すなわち、溶融生成物中に存在する結晶相の全てに対するブラウンミラライト相の重量の割合)が、50%超であり、より好ましくは55%超である、
-z=0、
-u=0、
-z=0かつu=0、
-元素M’は、Ti、Cu、Ni、Co、Mn及びそれらの混合物から選択され、
-式XyMzFetM’uO2.5において、(Ca(1-x)Srx)yMzFetM’uO2.5において、xがSrの割合を表し、かつ(1-x)がCaの相対的な割合を表す場合、式中、0<x≦0.1、0.9≦y≦1.05、0.1≧z≧0.01、y+z≦1.10、t≧0.8、0.01≦u≦0.2、t+u≦1.10、かつCa、Sr、Fe、M、M’及びO以外の元素の総重量含有量が、生成物の重量に対する割合として、3%未満である、
-式XyMzFetM’uO2.5において、(Ca(1-x)Srx)yMzFetM’uO2.5において、xがSrの割合を表し、かつ(1-x)がCaの相対的な割合を表す場合、式中、x=0、0.9≦y≦1.05、0.1≧z≧0.01、y+z≦1.10、t≧0.8、0.01≦u≦0.2、t+u≦1.10、かつCa、Sr、Fe、M、M’及びO以外の元素の総重量含有量が、生成物の重量に対する割合として、3%未満である、
-式XyMzFetM’uO2.5において、(Ca(1-x)Srx)yMzFetM’uO2.5において、xがSrの割合を表し、かつ(1-x)がCaの相対的な割合を表す場合、1>x≧0.9、0.9≦y≦1.05、0.1≧z≧0.01、y+z≦1.10、t≧0.8、0.01≦u≦0.2、t+u≦1.10、及びCa、Sr、Fe、M、M’及びO以外の元素の総重量含有量が、生成物の重量に対する割合として、3%未満である、
-式XyMzFetM’uO2.5において、式(Ca(1-x)Srx)yMzFetM’uO2.5において、xがSrの割合を表し、かつ(1-x)がCaの相対的な割合を表す場合、x=1、0.9≦y≦1.05、0.1≧z≧0.01、y+z≦1.10、t≧0.8、0.01≦u≦0.2、t+u≦1.10、及びCa、Sr、Fe、M、M’及びO以外の元素の総重量含有量が、生成物の重量に対する割合として、3%未満である。
(a)出発材料を混合して、工程(c)の終わりに、本発明による生成物を得るのに適した出発原料を作製するようにすること、
(b)液体塊が得られるまで出発原料を溶融すること、
(c)前記液体塊を完全に固化するまで冷却して、本発明による溶融生成物を得るようにすること。
k1.[(1-x)*y]/(x*y)≦c/s≦k2.[(1-x)*y]/(x*y)、及び/又は
k’1.u/t≦n/f≦k’2.u/t、及び/又は
k”1.z/t≦m/f≦k”2.z/t、及び/又は
k”’1.[(1-x)*y]/t≦c/f≦k”’2.[(1-x)*y]/t、及び/又は
k””1.(x*y)/t≦s/f≦k””2.(x*y)/t、
式中、
x、y、z、t及びuは、本明細書で定義される値をとることができ、特に、0≦x≦1、0.76≦y≦1.10、z≦0.21、0.48≦t≦1.10、u≦0.52、0.95≦y+z≦1.10、及び0.95≦t+u≦1.10であり、
k1≧0.9、好ましくは≧0.95、及び/又は
k’1≧0.9、好ましくは≧0.95、及び/又は
k”1≧0.9、好ましくは≧0.95、及び/又は
k”’1≧0.9、好ましくは≧0.95、及び/又は
k””1≧0.9、好ましくは≧0.95、及び/又は
k2≦1.1、好ましくは≦1.05、及び/又は
k’2≦1.1、好ましくは≦1.05、及び/又は
k”2≦1.1、好ましくは≦1.05、及び/又は
k”’2≦1.1、好ましくは≦1.05、及び/又は
k””2≦1.1、好ましくは≦1.05である。
(c1)液体塊を液滴の形態で分散させること、
(c2)これらの液滴を流体、好ましくは酸素含有流体との接触によって凝固させて、溶融粒子を得るようにすること。
(c1’)鋳型で液体塊を鋳造すること;
(c2’)少なくとも部分的に凝固したブロックが得られるまで、鋳型で鋳造した液体塊を冷やすことによって凝固させること;
(c3’)鋳型からブロックを取り外すこと。
好ましくは、ブラウンミラライト相の含有率、すなわち、溶融生成物中に存在する全ての結晶相に対するブラウンミラライト相の重量含有率は、50%を超え、好ましくは55%を超え、好ましくは60%を超え、好ましくは70%を超え、好ましくは80%を超え、好ましくは85%を超え、更には90%を超え、又は更には95%を超え、又は更には98%を超える;
-y≧0.8、好ましくはy≧0.85、好ましくはy≧0.9及び/又はy≦1.05、好ましくはy≦1である;
-好ましくはz≦0.2、好ましくはz≦0.15、好ましくはz≦0.1及び/又はz≧0.01である;
-一実施形態では、z=0である;
-y+z≦1.1、好ましくはy+z≦1.05である;
-t≧0.5、好ましくはt≧0.55、好ましくはt≧0.6、好ましくはt≧0.65、好ましくはt≧0.7、好ましくはt≧0.75、好ましくはt≧0.8、好ましくはt≧0.85、好ましくはt≧0.90、及び/又はt≦1.05、好ましくはt≦1である;
-好ましくはu≦0.5、好ましくはu≦0.45、好ましくはu≦0.4、好ましくはu≦0.35、好ましくはu≦0.3、好ましくはu≦0.25、好ましくはu≦0.2、好ましくはu≦0.15、好ましくはu≦0.1、好ましくはu≦0.08、好ましくはu≦0.05及び/又はu≧0.01である;
-一実施形態では、u=0である;
-一実施形態では、z=0かつu=0である;
-t+u≦1.1、好ましくはt+u≦1.05である;
-X=Ca(1-x)Srx、0≦x≦1が好ましい。好ましくは、x≦0.1、好ましくはx≦0.05であり、このとき、ブラウンミラライト相の安定性は、特に触媒での使用中において有利に改善され、又は好ましくはx≧0.9、好ましくはx≧0.95であり、その触媒性能品質が有利に改善される。一実施形態では、0<x<1である。代替実施形態では、x=0である。別の実施形態では、x=1である;
-特定の一実施形態において、元素Mの全原子割合zの80%超、好ましくは85%超、好ましくは90%超、好ましくは95%超が、単一の原子種からなる;
-好ましくは、元素M’は、Ti、Cu、Ni、Co、Mn及びそれらの混合物から選択される;
-好ましくは、TiとCuの原子指数の合計が0.08以下、好ましくは0.07以下、好ましくは0.05以下である;
-特定の一実施形態では、元素M’の全原子割合uの80%超、好ましくは85%超、好ましくは90%超が、1種又は2種の原子種、好ましくはただ1種の原子種からなる;
-好ましくは、Ca、Sr、Fe、M、M’及びO以外の元素の総重量含有率は、生成物の重量に対する割合として、4%未満、好ましくは3%未満、好ましくは2%未満、好ましくは1%未満、好ましくは0.7%未満、好ましくは0.4%未満である;
-一実施形態では、x=0、y=1、z=0、t=1及びu=0である;
-一実施形態では、x=1、y=1、z=0、t=1及びu=0である;
-一実施形態では、0<x<1、y=1、z=0、t=1及びu=0である。
-x≦0.1、好ましくは、x≦0.05であり、x>0である
-y≧0.9、y≦1.05、好ましくはy≦1
-z≦0.1、z≧0.01
-y+z≦1.1、好ましくはy+z≦1.05
-t≧0.8、好ましくはt≧0.85、好ましくはt≧0.90かつt≦1.05、好ましくはt≦1
-u≦0.2、好ましくはu≦0.15、好ましくはu≦0.1、好ましくはu≦0.08、好ましくはu≦0.07、好ましくはu≦0.05、かつu≧0.01
-t+u≦1.1、好ましくはy+z≦1.05
-Ca、Sr、Fe、M、M’及びO以外の元素の総重量含有率は、生成物の重量に対する割合として、3%未満、好ましくは2%未満、好ましくは1%未満、好ましくは0.7%未満、好ましくは0.4%未満である。
-x=0、及び
-y≧0.9、y≦1.05、好ましくはy≦1
-z≦0.1、z≧0.01
-y+z≦1.1、好ましくはy+z≦1.05
-t≧0.8、好ましくはt≧0.85、好ましくはt≧0.90、かつt≦1.05、好ましくはt≦1
-u≦0.2、好ましくはu≦0.15、好ましくはu≦0.1、好ましくはu≦0.08、好ましくはu≦0.07、好ましくはu≦0.05、かつu≧0.01
-t+u≦1.1、好ましくはy+z≦1.05
-Ca、Sr、Fe、M、M’及びO以外の元素の全重量含有量は、生成物の重量に対する割合として、3%未満、好ましくは2%未満、好ましくは1%未満、好ましくは0.7%未満、好ましくは0.4%未満である。
-x≧0.9、好ましくは、x≧0.95である
-y≧0.9、y≦1.05、好ましくはy≦1であり、かつ
-z≦0.1、z≧0.01であり、かつ
-y+z≦1.1、好ましくはy+z≦1.05であり、かつ
-t≧0.8、好ましくはt≧0.85、好ましくはt≧0.90及びt≦1.05、好ましくはt≦1であり、かつ
-u≦0.2、好ましくはu≦0.15、好ましくはu≦0.1、好ましくはu≦0.08、好ましくはu≦0.07、好ましくはu≦0.05及びu≧0.01であり、かつ
-t+u≦1.1、好ましくはy+z≦1.05であり、かつ
-Ca、Sr、Fe、M、M’及びO以外の元素の総重量含有率は、生成物の重量に対する割合として、3%未満、好ましくは2%未満、好ましくは1%未満、好ましくは0.7%未満、好ましくは0.4%未満である。
-x=1であり、かつ
-y≧0.9、y≦1.05、好ましくはy≦1であり、かつ
-z≦0.1、z≧0.01であり、かつ
-y+z≦1.1、好ましくはy+z≦1.05であり、かつ
-t≧0.8、好ましくはt≧0.85、好ましくはt≧0.90、かつt≦1.05、好ましくはt≦1であり、かつ
-u≦0.2、好ましくはu≦0.15、好ましくはu≦0.1、好ましくはu≦0.08、好ましくはu≦0.07、好ましくはu≦0.05、かつu≧0.01であり、かつ
-t+u≦1.1、好ましくはy+z≦1.05であり、かつ
-Ca、Sr、Fe、M、M’及びO以外の元素の総重量含有率は、生成物の重量に対する割合として、3%未満、好ましくは2%未満、好ましくは1%未満、好ましくは0.7%未満、好ましくは0.4%未満である。
実施例3及び4について、99%超のFe2O3を含み、Fe2O3のメジアン径が0.34μmである、酸化鉄粉末;
実施例3について3、99質量%超の炭酸カルシウムCaCO3を含み、CaCO3のメジアン径が1.85μmである、粉末;
実施例4について、99質量%超の炭酸ストロンチウムSrCO3を含み、SrCO3のメジアン径が4.3μmである、粉末。
本発明の実施態様の一部を以下の項目1~17に記載する。
〈項目1〉ブラウンミラライトをベースとする多結晶溶融生成物であって、前記多結晶溶融生成物の重量の95%超の元素Ca、Sr、Fe、O、M及びM’で構成されており、前記元素の含有量が、式X y M z Fe t M’ u O 2.5 により定義され、式中、原子指数が、0.76≦y≦1.10、z≦0.21、0.48≦t≦1.10、u≦0.52、0.95≦y+z≦1.10、及び0.95≦t+u≦1.10であるようにされており、XがCa若しくはSr又はCa及びSrの混合物であり、MがLa、Ba及びこれらの混合物からなる群から選択される元素であり、M’がTi、Cu、Gd、Mn、Al、Sc、Ga、Mg、Ni、Zn、Pr、In、Co及びこれらの混合物からなる群から選択される元素であり、TiとCuの原子指数の合計が、0.1以下である、溶融生成物。
〈項目2〉式中、0.85≦y≦1.05及び/又はz≦0.15及び/又は0.75≦t≦1.05及び/又はu≦0.25である、項目1に記載の溶融生成物。
〈項目3〉ブラウンミラライト相の含有率が50%超である、項目1又は2に記載の溶融生成物。
〈項目4〉式中、z=0である、項目1~3のいずれか一項に記載の溶融生成物。
〈項目5〉式中、u=0である、先行する項目1~4のいずれか一項に記載の溶融生成物。
〈項目6〉式中、z=0かつu=0である、項目1~5のいずれか一項に記載の溶融生成物。
〈項目7〉元素M’が、Ti、Cu、Ni、Co、Mn及びそれらの混合物から選択される、項目1~4のいずれか一項に記載の溶融生成物。
〈項目8〉式X y M z Fe t M’ u O 2.5 の溶融生成物であって、式(Ca (1-x) Sr x ) y M z Fe t M’ u O 2.5 において、xがSrの割合を表し、かつ(1-x)がCaの相対的な割合を表す場合、式中、0<x≦0.1、0.9≦y≦1.05、0.1≧z≧0.01、y+z≦1.1、t≧0.8、0.01≦u≦0.2、t+u≦1.1であり、かつCa、Sr、Fe、M、M’及びO以外の元素の総重量含有率が、前記溶融生成物の重量に対する割合として、3%未満である、項目1~3及び7のいずれか一項に記載の溶融生成物。
〈項目9〉式X y M z Fe t M’ u O 2.5 の溶融生成物であって、式(Ca (1-x) Sr x ) y M z Fe t M’ u O 2.5 において、xがSrの割合を表し、かつ(1-x)がCaの相対的な割合を表す場合、式中、x=0、0.9≦y≦1.05、0.1≧z≧0.01、y+z≦1.1、t≧0.8、0.01≦u≦0.2、t+u≦1.1であり、かつCa、Sr、Fe、M、M’、及びO以外の元素の総重量含有率が、前記溶融生成物の重量に対する割合として、3%未満である、項目1から3及び7のいずれか一項に記載の溶融生成物。
〈項目10〉式(Ca (1-x) Sr x ) y M z Fe t M’ u O 2.5 において、xがSrの割合を表し、かつ(1-x)がCaの相対的な割合を表す場合、式中、1>x≧0.9、0.9≦y≦1.05、0.1≧z≧0.01、y+z≦1.1、t≧0.8、0.01≦u≦0.2、t+u≦1.1であり、かつCa、Sr、Fe、M、M’及びO以外の元素の総重量含有率が、前記溶融生成物の重量に対する割合として、3%未満である、項目1~3及び7のいずれか一項に記載の溶融生成物。
〈項目11〉式(Ca (1-x) Sr x ) y M z Fe t M’ u O 2.5 において、xがSrの割合を表し、かつ(1-x)がCaの相対的な割合を表す場合、式中、x=1、0.9≦y≦1.05、0.1≧z≧0.01、y+z≦1.1、t≧0.8、0.01≦u≦0.2、t+u≦1.1であり、かつCa、Sr、Fe、M、M’、O以外の元素の総重量含有率が、前記溶融生成物の重量に対する割合として、3%未満である、項目1~3、及び7のいずれか一項に記載の溶融生成物。
〈項目12〉項目1~11のいずれか一項に記載の溶融生成物である粒子を、90重量%超で含む、粉末。
〈項目13〉0.1μm超4mm未満のメジアン径D 50 を有する、項目12に記載の粉末。
〈項目14〉以下の工程を含む、項目1~11のいずれか一項に記載の溶融生成物の製造方法:
(a)出発材料を混合して、工程(c)の終わりに、本発明の生成物を得るのに適した出発原料を作製するようにすること、
(b)液体塊が得られるまで前記出発原料を溶融すること、
(c)前記液体塊が完全に固化するまで冷却して、本発明の溶融生成物を得るようにすること。
〈項目15〉項目1~11のいずれか一項に記載の溶融生成物を含むか若しくはそれからなるか、項目12若しくは13に記載の粉末を含むか若しくはそれからなるか、又は項目14に記載の方法によって製造された生成物を含むか若しくはそれからなる、触媒担体又は触媒。
〈項目16〉項目1~11のいずれか一項に記載の溶融生成物を含むか若しくはそれからなるか、項目12若しくは13に記載の粉末を含むか若しくはそれからなるか、又は項目14に記載の方法によって製造された生成物を含むか若しくはそれからなる、酸素分離膜。
〈項目17〉項目1~11のいずれか一項に記載の溶融生成物を含むか若しくはそれからなるか、項目12若しくは13に記載の粉末を含むか若しくはそれからなるか、又は項目14に記載の方法によって製造された生成物を含むか若しくはそれからなる、固体酸化物型燃料電池SOFC用電極。
Claims (12)
- ブラウンミラライトをベースとする多結晶溶融生成物であって、前記多結晶溶融生成物の重量の95%超の元素Ca、Sr、Fe、及びOで構成されており、前記元素の含有量が、式X y Fe t O 2.5により定義され、式中、原子指数が、0.96≦y≦1.02、及び0.97≦t≦1.02であるようにされており、XがCa若しくはSr又はCa及びSrの混合物である、溶融生成物。
- ブラウンミラライト相の含有率が50%超である、請求項1に記載の溶融生成物。
- 式X y Fe t O 2.5の溶融生成物であって、式(Ca(1-x)Srx) y Fe t O 2.5において、xがSrの割合を表し、かつ(1-x)がCaの相対的な割合を表す場合、式中、0<x≦0.1、0.96≦y≦1.02、及び0.97≦t≦1.02であり、かつCa、Sr、Fe及びO以外の元素の総重量含有率が、前記溶融生成物の重量に対する割合として、3%未満である、請求項1又は2に記載の溶融生成物。
- 式X y Fe t O 2.5の溶融生成物であって、式(Ca(1-x)Srx) y Fe t O 2.5において、xがSrの割合を表し、かつ(1-x)がCaの相対的な割合を表す場合、式中、x=0、0.96≦y≦1.02、及び0.97≦t≦1.02であり、かつCa、Sr、Fe及びO以外の元素の総重量含有率が、前記溶融生成物の重量に対する割合として、3%未満である、請求項1又は2に記載の溶融生成物。
- 式(Ca(1-x)Srx) y Fe t O 2.5において、xがSrの割合を表し、かつ(1-x)がCaの相対的な割合を表す場合、式中、1>x≧0.9、0.96≦y≦1.02、及び0.97≦t≦1.02であり、かつCa、Sr、Fe及びO以外の元素の総重量含有率が、前記溶融生成物の重量に対する割合として、3%未満である、請求項1又は2に記載の溶融生成物。
- 式(Ca(1-x)Srx)yMzFetM’uO2.5において、xがSrの割合を表し、かつ(1-x)がCaの相対的な割合を表す場合、式中、x=1、0.96≦y≦1.02、及び0.97≦t≦1.02であり、かつCa、Sr、Fe及びO以外の元素の総重量含有率が、前記溶融生成物の重量に対する割合として、3%未満である、請求項1又は2に記載の溶融生成物。
- 請求項1~6のいずれか一項に記載の溶融生成物である粒子を、90重量%超で含む、粉末。
- 0.1μm超4mm未満のメジアン径D50を有する、請求項7に記載の粉末。
- 以下の工程を含む、請求項1~6のいずれか一項に記載の溶融生成物の製造方法:
(a)出発材料を混合して、工程(c)の終わりに、本発明の生成物を得るのに適した出発原料を作製するようにすること、
(b)液体塊が得られるまで前記出発原料を溶融すること、
(c)前記液体塊が完全に固化するまで冷却して、本発明の溶融生成物を得るようにすること。 - 請求項1~6のいずれか一項に記載の溶融生成物を含むか若しくはそれからなるか、請求項7若しくは8に記載の粉末を含むか若しくはそれからなる、触媒担体又は触媒。
- 請求項1~6のいずれか一項に記載の溶融生成物を含むか若しくはそれからなるか、請求項7若しくは8に記載の粉末を含むか若しくはそれからなる、酸素分離膜。
- 請求項1~6のいずれか一項に記載の溶融生成物を含むか若しくはそれからなるか、請求項7若しくは8に記載の粉末を含むか若しくはそれからなる、固体酸化物型燃料電池SOFC用電極。
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CN112955418A (zh) | 2021-06-11 |
WO2020058638A1 (fr) | 2020-03-26 |
FR3086282A1 (fr) | 2020-03-27 |
EP3853188A1 (fr) | 2021-07-28 |
US20220033310A1 (en) | 2022-02-03 |
JP2022501294A (ja) | 2022-01-06 |
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US11912626B2 (en) | 2024-02-27 |
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