| 发明名称 |
REMOVAL OF COLORING COMPONENT IN SOLVENT FOR POLYACRYLONITRILE |
| 摘要 |
<p>PURPOSE:To provide a method for performing the removal of the coloring component in an inorganic recovering solvent for PAN without causing the substantial lowering in the concentration of an effective component. CONSTITUTION:An inorganic recovering solvent for PAN is filtered through a RO membrane having a NaCl inhibiting rate of 10-97%. A coloring component can be removed by a low pressure operation of <=20kg/cm<2> without causing the substantial lowering in the concentration of the effective component.</p> |
| 申请公布号 |
JPH05230721(A) |
申请公布日期 |
1993.09.07 |
| 申请号 |
JP19920061253 |
申请日期 |
1992.02.14 |
| 申请人 |
JAPAN EXLAN CO LTD |
发明人 |
KAWASAKI SHIRO;OBARA NORIYUKI |
| 分类号 |
B01D61/02;C02F1/44;C08J11/02;D01F6/18;D01F13/04 |
主分类号 |
B01D61/02 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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