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31. 发明专利

JP2003210953A METHOD OF MANUFACTURING ZEOLITE MEMBRANE 审中-公开
公开(公告)号：JP2003210953A
公开(公告)日：2003-07-29
申请号：JP2002334242
申请日：2002-11-18
申请人： NORITAKE CO LTD
发明人： ANDO TAISUKE , KATO MASAKI , KAMEI YUJI , TAGUCHI HISATOMI , HIRANO YUJI
IPC分类号： B01D71/02 , B01D69/10 , C01B39/02
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a zeolite membrane which hardly causes faults during membrane production or heat treatment. SOLUTION: The method of manufacturing the zeolite membrane comprises the steps of: impregnating into the inside of a porous supporter 1 with fine pores of 0.03 to 20 μm in size a sol 3 for synthesizing enough amount of zeolite membrane to form the zeolite membrane of 5 μm or more in thickness; forming crystals by hydrothermal treatment of the porous supporter 1; and forming the zeolite membrane 5 having gas separability and a thickness of 5 μm or more in the porous supporter 1, wherein the zeolite membrane 5 is formed as a continuous membrane composed of zeolite crystals crystallized and grown by hydrothermal treatment from the sol 3 for synthesizing zeolite membrane in the fine pores 2 inside the porous supporter 1. COPYRIGHT: (C)2003,JPO

32. 发明专利

JP2000109690A HEAT-RESISTANT RESIN SEALING MEDIUM FOR ZEOLITE MEMBRANE 失效
公开(公告)号：JP2000109690A
公开(公告)日：2000-04-18
申请号：JP28404598
申请日：1998-10-06
申请人： NORITAKE CO LTD
发明人： HIRANO YUJI , ANDO TAISUKE , TAGUCHI HISATOMI
IPC分类号： B01D63/00 , B01D71/02 , C08K3/22 , C08L79/08 , C09K3/10
摘要： PROBLEM TO BE SOLVED: To provide a sealing medium having a reduced influence on the human body and environments and an excellent airtightness and mechanical strength at high temperatures and capable of providing a good seal between a high temperature gas separation zeolite membrane and a member to be joined therewith without leakage of a gas from the seal even a high temperatures. SOLUTION: A heat-resistant resin sealing medium for a zeolite membrane is obtained by dispersing alumina powder having an average particle diameter of 2.5 μm as the filler into a polyimide resin dispersion containing 25 wt.% heat-resistant polyimide resin having a thermal decomposition initiation temperature of not lower than 400 deg.C at a weight ratio of the polyimide resin dispersion to the alumina powder of 85:15. The polyimide resin dispersion preferably contains 5-50 wt.% heat-resistant polyimide resin.

33. 发明专利

JP2002201020A ZEOLITE SEED CRYSTAL, AND METHOD FOR PRODUCING ZEOLITE MEMBRANE USING THE SEED CRYSTAL 失效
公开(公告)号：JP2002201020A
公开(公告)日：2002-07-16
申请号：JP2000399683
申请日：2000-12-28
申请人： NORITAKE CO LTD
发明人： ANDO TAISUKE
IPC分类号： B01D53/22 , B01D71/02 , C01B39/02
摘要： PROBLEM TO BE SOLVED: To obtain a fine particulate zeolite seed crystal having improved function as a crystallization nucleus on a support. SOLUTION: This zeolite seed crystal is obtained by roughening treatment of a fine particulate zeolite grown by crystallization and having an average particle size of 0.5 μm or less. By attaching this zeolite seed crystal onto a support to synthesize a zeolite membrane, a zeolite membrane dense and free of notable defect is efficiently produced for high performance gas separation use or filtration use.

34. 发明专利

JPH11137981A BASE BODY TO CARRY ZEOLITE MEMBRANE 失效
公开(公告)号：JPH11137981A
公开(公告)日：1999-05-25
申请号：JP32040297
申请日：1997-11-06
申请人： NORITAKE CO LTD
发明人： ANDO TAISUKE , TAGUCHI HISATOMI , YAMADA SEIJI
IPC分类号： B01D69/10 , B01D53/04
摘要： PROBLEM TO BE SOLVED: To prevent peeling of a zeolite film and generation of film defects and to obtain high separation performance by increasing alkali resistance of a base body which carries the zeolite film. SOLUTION: A porous base body which carries a zeolite film is used for a separation membrane for pervaporation or the like, a membrane reactor or a gas sensor. By increasing the alkali resistance of the base body, film defects or film peeling due to the difference in thermal expansion between the film and the base body in a calcining process to remove a crystallizing agent can be prevented and thereby, decrease in the film performance can be prevented. For example, as for the base body having high alkali resistance, zirconium oxide, titanium oxide, tantalum oxide or niobium oxide is used. Moreover, a material having / deg.C coefft. of thermal expansion is used. As for the base body to carry a zeolite film having high alkali resistance and

35. 发明专利

JPH10114516A PRODUCTION OF ZEOLITE FILM 失效
公开(公告)号：JPH10114516A
公开(公告)日：1998-05-06
申请号：JP28472496
申请日：1996-10-07
申请人： NORITAKE CO LTD
发明人： ANDO TAISUKE , KATO MASAKI
IPC分类号： B01D71/02 , B01J20/18 , C01B39/02 , C04B41/85
摘要： PROBLEM TO BE SOLVED: To obtain a uniform zeolite film a almost free from defects and having superior separating performance by forming a zeolite film on a porous substrate by hydrothermal synthesis using a sol of composite colloid consisting of silica and a metal oxide other than silica in a stock soln. SOLUTION: A stock soln. is prepd. by mixing NaOH with tetrapropylammonium bromide(TPABr), distilled water, a sol of alumina-silica composite colloid and a silica sol so that the molar ratio of TPABr:Na2 O:Al2 O3 : SiO2 :H2 O is regulated to 0.1:0.05:0.01:1:80. A cylindrical porous alumina substrate 3 is put in an autoclave, this autoclave is evacuated to expel bubbles from the substrate 3 and the ports in the substrate 3 are filled with the stock soln. A zeolite film 2 is formed on the substrate 3 by hydrothermal synthesis by holding at 170 deg.C under 8atm for 72hr and the substrate 3 is subjected to ultrasonic cleaning in hot water at 80 deg.C. Distilled water at ordinary temp. is substd. for the hot water and the substrate 3 is dried at 100 deg.C for 24hr and heat-treated at 600 deg.C for 2hr to remove the residual TPABr in the film.

36. 发明专利

JP2001097715A METHOD FOR FORMING ZEOLITE FILM 失效
公开(公告)号：JP2001097715A
公开(公告)日：2001-04-10
申请号：JP27704299
申请日：1999-09-29
申请人： NAKAO SHINICHI , NORITAKE CO LTD
发明人： NAKAO SHINICHI , KUMAKIRI IZUMI , YAMAGUCHI TAKEHISA , ANDO TAISUKE
IPC分类号： B01D71/02 , C01B21/04 , C01B32/50 , C01B39/02
摘要： PROBLEM TO BE SOLVED: To provide a method for efficiently producing a zeolite film having no defect and a uniform thickness on a supporter having complicated shape or a supporter having a large area. SOLUTION: This method for producing the zeolite film comprises subjecting a slurry containing seed crystals to crossflow filtration by an alumina porous supporter having 1 μm average pore diameter to make the porous supporter carry a seed crystal layer having 6 μm thickness in the interior of the pore or the surface of the supporter, and growing the seed crystal in the seed crystal layer by hydrothermal synthesis to provide the objective zeolite film having 7 μm thickness.

37. 发明专利

JP2000007324A ZEOLITE FILM ELEMENT AND ITS PRODUCTION 失效
公开(公告)号：JP2000007324A
公开(公告)日：2000-01-11
申请号：JP17111598
申请日：1998-06-18
申请人： NORITAKE CO LTD
发明人： ANDO TAISUKE , HIRANO YUJI , MASE SHIGEKAZU , TAGUCHI YUMITOMI
IPC分类号： B01D71/02 , C01B39/02
摘要： PROBLEM TO BE SOLVED: To provide improved separating performances for a gas with slight defects by removing a zeolite film formed on a substrate and containing the defects. SOLUTION: A zeolite film is composed of a zeolite internal growth layer 3 formed into a layer state by growing a crystal of a zeolite nucleus in the interior of pores 2 of a substrate 1 and a zeolite interfacial growth layer 4 formed into an ultrathin filmy state by growing a crystal of the zeolite nucleus on the substrate surface. In order to produce a zeolite film element capable of stably manifesting high performances, an element in the absence of a coarse zeolite deposition layer on the substrate 1 may be prepared. Thereby, the coarse zeolite deposition layer formed simply by depositing the crystal is removed after forming the film. The coarse deposition layer is preferably removed to a thickness of >=40 μm or the zeolite film formed on the substrate 1 is removed by a thickness of >=1/3 of the thickness thereof. Thereby, the permeability can be improved to 2 times or above.

38. 发明专利

JP2002348579A METHOD FOR HYDROCARBON MIXTURE SEPARATION USING ZEOLITE-BASED SEPARATION MEMBRANE AND METHOD FOR OBTAINING SEPARATED HYDROCARBON BY SEPARATION 失效
公开(公告)号：JP2002348579A
公开(公告)日：2002-12-04
申请号：JP2001154518
申请日：2001-05-23
申请人： NARD INSTITUTE LTD , NORITAKE CO LTD
发明人： ARAKAWA MORIMASA , ABE SATORU , ANDO TAISUKE , TAGUCHI HISATOMI
IPC分类号： B01D71/02 , C07C7/144 , C07C9/15 , C07C9/18 , C07C11/10 , C07C11/18 , C10G31/09 , C10G55/04
摘要： PROBLEM TO BE SOLVED: To provide a method for a hydrocarbon mixture separation, by which a zeolite-based separation membrane is used, the hydrocarbon mixture is stably and efficiently separated into a component rich in a straight-chain hydrocarbon and a component rich in a branched hydrocarbon without causing a decomposition and a chemical reaction and the hydrocarbons are obtained. SOLUTION: This method for hydrocarbon mixture separation using a zeolite- based separation membrane is characterized in that the zeolite-based separation membrane is provided with a zeolite thin film layer on the surface part of a porous substrate, the zeolite thin film layer has pores characteristic of zeolite crystal and pores with

39. 发明专利

JP2002045637A ZEOLITE MEMBRANE, METHOD FOR PRODUCING THE SAME, AND MEMBRANE REACTOR 失效
公开(公告)号：JP2002045637A
公开(公告)日：2002-02-12
申请号：JP2000238704
申请日：2000-08-07
申请人： NORITAKE CO LTD , KUSAKABE KATSUMI
发明人： KUSAKABE KATSUMI , ANDO TAISUKE
IPC分类号： B01D53/22 , B01D53/86 , B01D71/02 , B01J19/24 , B01J29/12 , B01J32/00 , B01J35/02 , B01J35/06 , B01J35/10 , B01J37/02 , C01B3/50 , C01B3/56 , C01B3/58 , H01M8/06
摘要： PROBLEM TO BE SOLVED: To provide a membrane reactor capable of realizing both of a high permeation flow rate and a high separation selectivity (permeation specificity) in a practical level. SOLUTION: The membrane reactor is a molecule-selective permeation membrane reactor having, as main constitutive elements, a porous membrane with gas-permeable fine pores and one or more kinds of metals which are loaded on the porous membrane and function as oxidation catalysts.

40. 发明专利

JP2000126564A PRODUCTION OF ZEOLITE MEMBRANE ELEMENT 失效
公开(公告)号：JP2000126564A
公开(公告)日：2000-05-09
申请号：JP30717798
申请日：1998-10-28
申请人： NORITAKE CO LTD
发明人： ANDO TAISUKE , TAGUCHI HISATOMI
IPC分类号： B01D71/02 , C01B39/14 , C01B39/24 , C01B39/46
摘要： PROBLEM TO BE SOLVED: To produce a zeolite membrane element having good properties stably by forming a strict zeolite membrane on a porous α-alumina base material whose average pore diameter is in a specified range and obtaining the porous α-alumina base material coated with the zeolite membrane having a specified helium gas permeability. SOLUTION: In the production of a zeolite membrane element having a zeolite membrane suitable for separating a mixed gas, a porous α-alumina base material of 0.05-20 μm average pore diameter is used as a base material, a strict zeolite membrane is formed on the base material, and the porous α-alumina base material coated with the zeolite membrane of 10-5 mole/sec.m2.Pa or below helium gas permeability is obtained. As a method for making a zeolite membrane, various membrane making methods in which a zeolite skeleton metal source, an alkali metal source, and water are preferably used as starting raw materials, and a crystallization accelerator is added as required are applicable, and for example, a silica source and an alumina source are used as the zeolite skeleton metal source.

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