A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
MOLDED BODY OF α-ALUMINA, AND METHO OF PRODUCING THE SAME
To provide a molded body of α-alumina of a large pore volume and a large pore diameter.SOLUTION: The molded body according to the present invention, containing α-alumina in an amount of not less than 80%, is characterized in that a pore diameter ratio D10/D90 is higher than 2.0, with the pore diameter D10 being a pore diameter at which the integrated pore volume reaches 10% of the total pore volume and the pore diameter D90 being a pore diameter at which the integrated pore volume reaches 90% of the total pore volume, provided that the total pore volume obtained by integrating pore volumes from a pore diameter of 5000 nm to a pore diameter of 5 nm by mercury porosimetry is indexed as 100%, the pore diameter D10 is larger than 200 nm, and the total pore volume is in a range of from 0.3 mL/g or larger and to 0.5 mL/g or smaller.SELECTED DRAWING: Figure 1
【課題】細孔容積と細孔径が大きいαアルミナの成型体を提供すること。【解決手段】本発明による成型体は、αアルミナを８０％以上含む成型体であって、水銀圧入法で５０００ｎｍの細孔径から５ｎｍの細孔径へ細孔容積を積分して得られる全細孔容積を１００％としたとき、積分された細孔容積が全細孔容積の１０％となる細孔径Ｄ１０と積分された細孔容積が全細孔容積の９０％となる細孔径Ｄ９０との細孔径比Ｄ１０／Ｄ９０が２．０超であり、細孔径Ｄ１０が２００ｎｍより大きく、全細孔容積が０．３ｍＬ／ｇ以上０．５ｍＬ／ｇ以下の範囲にあることを特徴とする。【選択図】図１
MOLDED BODY OF α-ALUMINA, AND METHO OF PRODUCING THE SAME
To provide a molded body of α-alumina of a large pore volume and a large pore diameter.SOLUTION: The molded body according to the present invention, containing α-alumina in an amount of not less than 80%, is characterized in that a pore diameter ratio D10/D90 is higher than 2.0, with the pore diameter D10 being a pore diameter at which the integrated pore volume reaches 10% of the total pore volume and the pore diameter D90 being a pore diameter at which the integrated pore volume reaches 90% of the total pore volume, provided that the total pore volume obtained by integrating pore volumes from a pore diameter of 5000 nm to a pore diameter of 5 nm by mercury porosimetry is indexed as 100%, the pore diameter D10 is larger than 200 nm, and the total pore volume is in a range of from 0.3 mL/g or larger and to 0.5 mL/g or smaller.SELECTED DRAWING: Figure 1
【課題】細孔容積と細孔径が大きいαアルミナの成型体を提供すること。【解決手段】本発明による成型体は、αアルミナを８０％以上含む成型体であって、水銀圧入法で５０００ｎｍの細孔径から５ｎｍの細孔径へ細孔容積を積分して得られる全細孔容積を１００％としたとき、積分された細孔容積が全細孔容積の１０％となる細孔径Ｄ１０と積分された細孔容積が全細孔容積の９０％となる細孔径Ｄ９０との細孔径比Ｄ１０／Ｄ９０が２．０超であり、細孔径Ｄ１０が２００ｎｍより大きく、全細孔容積が０．３ｍＬ／ｇ以上０．５ｍＬ／ｇ以下の範囲にあることを特徴とする。【選択図】図１
MOLDED BODY OF α-ALUMINA, AND METHO OF PRODUCING THE SAME
αアルミナの成型体及びその製造方法
TAGAWA SHOGO (author) / SHIMOMURA KAZUYOSHI (author) / TAKASE MASAHIRO (author)
2022-03-04
Patent
Electronic Resource
Japanese
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