公开(公告)号：US08915378B2

公开(公告)日：2014-12-23

申请号：US13805227

申请日：2011-08-17

申请人： Shinobu Tokimi ,  Toshiyuki Yagi ,  Yuji Ito

发明人： Shinobu Tokimi ,  Toshiyuki Yagi ,  Yuji Ito

IPC分类号： B01D69/08 ,  B01D63/02 ,  B01D71/16 ,  C02F1/44 ,  B01D69/02 ,  B01D61/02 ,  C02F103/08

CPC分类号： B01D69/087 ,  B01D61/025 ,  B01D63/02 ,  B01D63/021 ,  B01D69/02 ,  B01D69/08 ,  B01D71/16 ,  B01D2325/20 ,  C02F1/441 ,  C02F2103/08 ,  Y02A20/131

摘要： A hollow fiber type reverse osmosis membrane including cellulose acetate, characterized in that the filtration rate and the salt rejection rate when an aqueous solution having sodium chloride concentration of 1,500 mg/L is filtered from outer side to inner side of the hollow fiber type reverse osmosis membrane at 25° C. and 1.5 MPa pressure are 180 to 350 L/m2/day and 90.0 to 99.0%, respectively and the outer diameter, the inner diameter and the hollow rate of the hollow fiber type reverse osmosis membrane are 100 to 280 μm, 50 to 200 μm and 24 to 42%, respectively. The hollow fiber type reverse osmosis membrane preferably has a dense layer near the outer surface, and thickness of the dense layer is 0.1 to 7 μm.

摘要翻译： 一种中空纤维型反渗透膜，其包括醋酸纤维素，其特征在于，当氯化钠浓度为1,500mg / L的水溶液从中空纤维型反渗透的外侧向内侧过滤时的过滤速度和脱盐率 25℃和1.5MPa压力下的膜分别为180〜350L / m 2 /天和90.0〜99.0％，中空纤维型反渗透膜的外径，内径和中空率分别为100〜280 μm，50〜200μm，24〜42％。 中空纤维型反渗透膜优选在外表面附近具有致密层，致密层的厚度为0.1〜7μm。

公开(公告)号：US20130140236A1

公开(公告)日：2013-06-06

申请号：US13805227

申请日：2011-08-17

申请人： Shinobu Tokimi ,  Toshiyuki Yagi ,  Yuji Ito

发明人： Shinobu Tokimi ,  Toshiyuki Yagi ,  Yuji Ito

IPC分类号： B01D69/08 ,  C02F1/44 ,  B01D71/16 ,  B01D63/02

CPC分类号： B01D69/087 ,  B01D61/025 ,  B01D63/02 ,  B01D63/021 ,  B01D69/02 ,  B01D69/08 ,  B01D71/16 ,  B01D2325/20 ,  C02F1/441 ,  C02F2103/08 ,  Y02A20/131

摘要： A hollow fiber type reverse osmosis membrane including cellulose acetate, characterized in that the filtration rate and the salt rejection rate when an aqueous solution having sodium chloride concentration of 1,500 mg/L is filtered from outer side to inner side of the hollow fiber type reverse osmosis membrane at 25° C. and 1.5 MPa pressure are 180 to 350 L/m2/day and 90.0 to 99.0%, respectively and the outer diameter, the inner diameter and the hollow rate of the hollow fiber type reverse osmosis membrane are 100 to 280 μm, 50 to 200 μm and 24 to 42%, respectively. The hollow fiber type reverse osmosis membrane preferably has a dense layer near the outer surface, and thickness of the dense layer is 0.1 to 7 μm.

摘要翻译： 一种中空纤维型反渗透膜，其包括醋酸纤维素，其特征在于，当氯化钠浓度为1,500mg / L的水溶液从中空纤维型反渗透的外侧向内侧过滤时的过滤速度和脱盐率 25℃和1.5MPa压力下的膜分别为180〜350L / m 2 /天和90.0〜99.0％，中空纤维型反渗透膜的外径，内径和中空率分别为100〜280 妈妈分别是50到200个妈妈和24到42％。 中空纤维型反渗透膜优选在外表面附近具有致密层，致密层的厚度为0.1〜7μm。