- 专利标题: Method for producing a carbon hollow fiber membrane
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申请号: US15535256申请日: 2015-12-11
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公开(公告)号: US10150086B2公开(公告)日: 2018-12-11
- 发明人: Kensuke Watanabe , Hirokazu Yamamoto
- 申请人: NOK Corporation
- 申请人地址: JP Tokyo
- 专利权人: NOK Corporation
- 当前专利权人: NOK Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Brinks Gilson & Lione
- 优先权: JP2014-252126 20141212
- 国际申请: PCT/JP2015/084851 WO 20151211
- 国际公布: WO2016/093357 WO 20160616
- 主分类号: B01D53/22
- IPC分类号: B01D53/22 ; B01D69/08 ; D01F9/24 ; B01D67/00 ; B01D71/02 ; B05D1/00 ; D01D1/02 ; D01D5/24 ; D01D10/02 ; B01D69/14
摘要:
A hollow fiber carbon membrane is produced by preparing a membrane-forming dope for carbon membranes by dissolving polyphenylene oxide in an amount giving a concentration of 15 to 40 wt. % in the membrane-forming dope, and sulfur in an amount giving a ratio of 0.2 to 3.0 wt. % based on the polyphenylene oxide, in a solvent capable of dissolving these components; preparing the membrane-forming dope for carbon membranes into a hollow shape by means of a spinning method in accordance with a non-solvent induced separation method using a double annular nozzle; performing a crosslinking treatment at 200 to 240° C. in the air; then performing an infusibilization treatment by heating at 250 to 350° C.; and further performing a carbonization treatment by heating at 450 to 850° C. in an inert atmosphere or under vacuum.
公开/授权文献
- US20170320020A1 METHOD FOR PRODUCING A CARBON HOLLOW FIBER MEMBRANE 公开/授权日:2017-11-09