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1. 发明专利

JPH1111928A PRODUCTION OF SILICA GEL AND PRODUCTION OF DEHUMIDIFYING ELEMENT 失效
公开(公告)号：JPH1111928A
公开(公告)日：1999-01-19
申请号：JP15988697
申请日：1997-06-17
申请人： NICHIAS CORP
发明人： TANABE ATSUSHI , FURUYA YUMIKO
IPC分类号： B31D3/02 , B01D53/26 , B01D53/28 , B01J20/10 , B01J20/28 , C01B33/154 , C01B33/16
摘要： PROBLEM TO BE SOLVED: To produce a silica gel in a significantly large amt. in one series of treatment processes compared to a conventional method, and to produce a silica gel in a practically enough amt. as a dehumidifying element in one series of treatment by dipping a base body in a silica sol, drying, dipping in a mixture soln. of alkali silicate and alkali hydroxide, taking out from the soln., heating, and treating with an acid. SOLUTION: It is preferable to use a silica sol having

2. 发明专利

JPH10272365A DEDORIZATION CATALYST AND ELEMENT FOR DEODORIZATION 失效
公开(公告)号：JPH10272365A
公开(公告)日：1998-10-13
申请号：JP9273597
申请日：1997-03-28
申请人： NICHIAS CORP
发明人： TANABE ATSUSHI , FURUYA YUMIKO
IPC分类号： B01D53/86 , A61L9/01 , B01J29/44 , B01J29/48
摘要： PROBLEM TO BE SOLVED: To provide a catalyst that can effectively remove sulfur-containing compounds, which are compounds causing malodor in living environments, by coating a zeolite, to which silver ion is joined by an ion exchange reaction, with a metal oxide catalyst, which can convert mercaptanes in the air into alkyl disulfide. SOLUTION: To produce the catalyst to be used for deodorization of air containing sulfur-containing compounds such as mercaptanes, methyl sulfide, etc., zeolite to which silver ion is joined by an ion exchange reaction (hereafter called as silver ion-exchanged zeolite) is so treated as to be coated with a coating of a metal oxide catalyst which can convert mercaptanes in air into alkyl disulfide. Alternatively, silver ion-exchanged zeolite is deposited on a honeycomb structure body and the surface is coated with a metal oxide catalyst which can convert mercaptanes in air into alkyl disulfide to produced an deodorization element. Manganese oxide, iron oxide, cobalt oxide, etc., in fine powder state with high specific surface area are preferably used as the metal oxide catalyst.

3. 发明专利

JPH10272334A MANUFACTURE OF DEHUMIDIFYING ELEMENT 失效
公开(公告)号：JPH10272334A
公开(公告)日：1998-10-13
申请号：JP8098597
申请日：1997-03-31
申请人： NICHIAS CORP
发明人： TANABE ATSUSHI , FURUYA YUMIKO
IPC分类号： B01D53/26 , B01D53/28 , F24F3/14
摘要： PROBLEM TO BE SOLVED: To manufacture a dehumidifying element that has a sufficient dehumidifying function in even one treating process by a method wherein an inorganic fiber paper, in which inorganic fibers are coated with silica gel, is formed into a honeycomb-shape and the honeycomb-shaped material is dipped in an aqueous solution of alkali silicate, acid-treated, and then burnt. SOLUTION: For providing an inorganic fiber paper, glass fibers are collected and formed into a paper-shape, and the inorganic fiber paper is coated with silica gel in such a manner that a coating liquid comprising a slurry prepared by mixing silica gel, polyvinyl alcohol or organic emulsion of acrylic or vinylidene chloride, and water is provided, which liquid is applied to the surface of the inorganic fiber paper using a spray or brush. And the paper is dried and formed into a honeycomb structure. The structure is dipped into an aqueous solution of alkali silicate and subjected to an acid treatment to turn alkali silicate into a silicic acid gel, which is then burnt to provide a required dehumidifying element.

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