发明授权
- 专利标题: Process for removing colored components from solvent for polyacrylonitrile
- 专利标题(中): 从聚丙烯腈溶剂中除去有色成分的方法
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申请号: US9940申请日: 1993-01-27
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公开(公告)号: US5300229A公开(公告)日: 1994-04-05
- 发明人: Shiro Kawasaki , Noriyuki Kohara
- 申请人: Shiro Kawasaki , Noriyuki Kohara
- 申请人地址: JPX Osaka
- 专利权人: Japan Exlan Company Limited
- 当前专利权人: Japan Exlan Company Limited
- 当前专利权人地址: JPX Osaka
- 优先权: JPX4-061253 19920214
- 主分类号: B01D61/02
- IPC分类号: B01D61/02 ; C02F1/44 ; C08J11/02 ; D01F6/18 ; D01F13/04 ; B01D61/00
摘要:
A process for removing colored components from a recovered inorganic solvent of polyacrylonitrile, without an appreciable decrease in the concentration of active components, using a reverse osmosis membrane whose NaCl rejection is in the range of 10% to 97%, under a permeation pressure lower than 20 kg/cm.sup.2.
公开/授权文献
- USD360487S Cosmetic kit 公开/授权日:1995-07-18
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