Ngk Insulators, Inc.

Masaaki Kawai

Shinji Kawasaki

Nobuhiko Mori

Kenji Morimoto

Aya Satoh

Kenichi Noda

Takahiro Tomita

Yoshio Kikuchi

Katsuhiro Inoue

Toshihiro Tomita

Takuya Hiramatsu

Suguru Kodama

Aya Miura

Mariko Takagi

A method for manufacturing a silica membrane filter includes performing, at least once, a fired membrane forming operation having a membrane forming step of applying, to a porous substrate, a precursor sol which is a sol of a silicon alcoxide including a p-tolyl group to form a precursor sol membrane, a drying step of drying the precursor sol membrane formed in the porous substrate to form a dried membrane, and a firing step of firing the dried membrane formed in the porous substrate to form a fired membrane, thereby preparing the silica membrane filter including the porous substrate and a silica membrane which is the fired membrane formed in the porous substrate, and a ratio of a total mass of the silica membrane to a total mass of the dried membrane is 38 mass % or more and 85 mass % or less.

Method for manufacturing silica membrane filter, and silica membrane filter

A silicon carbide-based porous body comprising a plurality of silicon carbide (SiC) particles as an aggregate and a binder which binds the silicon carbide particles to each other, wherein

Silicon carbide-based porous body

There is provided a silica membrane filter having performance of selectively separating an aromatic compound and performance of selectively separating an alcohol. The silica membrane filter is provided with a porous substrate and a silica membrane. The ratio of a He gas permeation amount to an Ngas permeation amount (He gas permeation amount/Ngas permeation amount) is 7 or less, and the ratio of the Ngas permeation amount to a SFgas permeation amount (Ngas permeation amount/SFgas permeation amount) is 1.5 or more.

Silica film filter and process for producing silica film filter

There is provided a silicon carbide-based porous body which can avoid excessive temperature elevation when it is used as a filter and the captured particulate matter (PM) is burnt for removal and which is low in strength reduction caused by heat cycle. The silicon carbide-based porous body comprises a plurality of silicon carbide (SiC) particles as an aggregate and a plurality of binding phases which bind the silicon carbide particles to each other, wherein

There is provided a zeolite separation membrane-provided article having gaps or pores larger than pores inherent to zeolite crystals and controlled within an appropriate range and being capable of achieving both high permeability and high separability for components with small difference in adsorption properties or a component having a smaller molecular diameter than the diameter of the pores, a method for producing the same, a method for separating mixed fluids, and a device for separating mixed fluids. The zeolite separation membrane-provided article is provided with a zeolite membrane having an Ngas permeation speed at room temperature of 1.0&#xd7;10mol&#xb7;m&#xb7;s&#xb7;Paor more and a permeation speed ratio of 1,3,5-trimethylbenzene/Nat room temperature of 0.17 or more and being free from dyeing caused by the impregnation with Rhodamine B.

Structure provided with zeolite separation membrane, method for producing same, method for separating mixed fluids and device for separating mixed fluids

A porous fired body including a structure that aggregates are bonded by a bonding material, wherein the aggregates include oxide particles having a larger thermal capacity per unit volume than an SiC particle and SiC, the bonding material includes metallic Si, volume ratio of the metallic Si in the whole porous fired body is between 8 and 43% by volume, volume ratio of the particles of the oxide in the whole aggregates is between 14 and 55% by volume, the SiC particles and the oxide particles respectively include one or more particle groups, and an average particle size of each particle group is within a range of between 5 and 100 &#x3bc;m.

Porous fired body and manufacturing method thereof

There is provided a bonding material composition for obtaining a joined body by unitarily joining two or more members to be joined by means of a bonding material layer, wherein the bonding material composition contains flat particles, non-flat particles, smectite-based clay, and an inorganic adhesive as main components. The bonding material composition costs little, can relax thermal stress generated in the joined body without using fibers which may do harm to a human body, and can reduce defects such as a crack and a void upon drying or a thermal treatment.

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Nagoya, Japan

Masaaki Kawai