| 发明名称 |
NF MEMBRANE, AND METHOD FOR MANUFACTURING THE SAME |
| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an NF membrane with high salt rejection. <P>SOLUTION: The NF membrane is composed of a dehydrochlorination condensate of a chlorine-contained polymer and a multivalent amino group-contained compound. Zeta potential of the surface is positive in a range that a pH is 6 to 7. A Ca removal rate obtained by the following formula is equal to or larger than 70%. Ca removal rate=[1-(Ca amount in permeate)/ä(Ca amount in feeding liquid+Ca amount in concentrate)/2}]. <P>COPYRIGHT: (C)2013,JPO&INPIT |
| 申请公布号 |
JP2013022580(A) |
申请公布日期 |
2013.02.04 |
| 申请号 |
JP20110163292 |
申请日期 |
2011.07.26 |
| 申请人 |
DAICEN MEMBRANE SYSTEMS LTD |
发明人 |
WATABE TOMOKAZU |
| 分类号 |
B01D71/30;B01D61/02;B01D63/02;B01D63/08;B01D69/06;B01D69/08;B01D71/82;C02F1/44;C08J7/00;D01F6/04;D01F6/10;D06M15/61;D06M101/22 |
主分类号 |
B01D71/30 |
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