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    • 63. 发明专利
    • SEPARATION OF GAS OR LIQUID
    • JPH06128816A
    • 1994-05-10
    • JP22463391
    • 1991-08-10
    • KURARAY COKURARAY CHEMICAL KK
    • TANAKA EIJIHAMADA TOSHIHIRO
    • B01D15/00B01D53/04C02F1/28D01F9/14D01F9/21
    • PURPOSE:To efficiently separate components contained in a gas or a liquid by applying a dehydration agent to the surface layer of e PVA-based fiber, subsequently heat treating the fiber till it becomes black, further dry distilling it at high temperatures, activating the fiber and treating a mixture gas or liquid with the resultant activated hollow carbon fiber. CONSTITUTION:An activated hollow carbon fiber is prepared by applying a dehydration agent to the surface of a polyvinyl alcohol-based fiber, subsequently heat treating it until it becomes brown black or black while preventing the fiber from melting, further dry distilling it by heating from 400 deg.C to 1000 deg.C within 5min and furthermore activating it. A gas or a liquid containing plural components is supplied from the outside or the inside of the fiber so as to make the contained components permeate the fiber wall and to separate them. By utilizing its high adsorption and molecular sieve performances, this method is widely applicable to, e.g. separation of nitrogen or oxygen from the air, separation of ethanol from water, decomposition of ozon decoloring-purification of a sugar solution or deodorizing. The components contained in the gas or the liquid can be efficiently separated.