Activated carbon by high strength molding

Abstract

PURPOSE: To obtain activated carbon by molding having significantly improved strength such as collapsing strength and wear resistance strength by kneading granular activated carbon, bentonite clay, and phospher compd., granulating, and sintering the granules. CONSTITUTION: 5-75 pts.wt. of bentonite clay, and 1-35 pts.wt. of phospher compd. per 100 pts.wt. of granular active carbon are kneaded, granulated and then sintered at 400-1000°C to obtain activated carbon by molding. As for the granular activated carbon, various kinds of the activated carbon such as coal, coconut shell, charcoal, and lignin can be used. The grain size of the granular activated carbon is preferably ≤0.5mm, and more preferably, about 90% of the carbon can pass through a 200 mesh sieve. Sodium bentonite or calcium bentonite can be used as the bentonite clay, and sodium bentonite is more preferable. As for the phospher compd., it is preferable to use phosphoric acid (orthophosphoric acid, condensed phosphoric acid), sodium phosphide, calcium phosphide, etc. COPYRIGHT: (C)1991,JPO&Japio

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Cited By (4)

    Publication numberPublication dateAssigneeTitle
    JP-H08173800-AJuly 09, 1996Noritake Co Ltd, 株式会社ノリタケカンパニーリミテドAdsorption material and manufacture thereof
    KR-100895867-B1April 30, 2009(주)동화라이징다공성 복합소결체의 제조방법
    US-5972525-AOctober 26, 1999Jgc Corporation, Catalysts & Chemicals Industries Co., Ltd.Solid particle containing active carbon, support and catalyst
    US-6599856-B1July 29, 2003Tennex Corporation, Mitsubishi Chemical CorporationFormed activated carbon and process for producing the same