专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO1996007470A1 CLEANING OF HOLLOW FIBRE MEMBRANES 审中-公开
标题翻译：中空纤维膜的清洁
公开(公告)号：WO1996007470A1
公开(公告)日：1996-03-14
申请号：PCT/AU1995000587
申请日：1995-09-08
申请人： MEMTEC LIMITED , BECK, Thomas, William , DRUMMOND, Humphrey, John, Jardine , LEE, Matthew, Brian , KOPP, Clint, Virgil , JOHNSON, Warren, Thomas
发明人： MEMTEC LIMITED
IPC分类号： B01D65/02
CPC分类号： B01D65/02 , B01D29/115 , B01D29/52 , B01D29/6438 , B01D29/66 , B01D2321/04 , B01D2321/185 , B01D2321/2066
摘要： A method and apparatus for recovering fine solids from a liquid feed suspension is disclosed. The apparatus has an operating cycle including a concentration part of the cycle in which solids present in the feed suspension are concentrated and a backwash part of the cycle in which supply of feed suspension to the concentrator is interrupted, the concentrator comprises a shell (11), and a plurality of elastic, hollow, microporous, polymer fibres (12) being fixed at their ends within the shell (11). Pressurized feed suspension is supplied to the outside of the fibres during said concentration part of the cycle and the filtrate may be withdrawn from the fibre lumens during the operating cycle. During the backwash cycle the concentration part of the cycle is terminated by ceasing supply of feed to said exterior surface of the fibres (12). The shell (11) is then sealed and the remaining filtrate removed from the lumens. A source of fluid under pressure is then applied to said lumens before, at the same time as, or just after opening the shell (11) to atmosphere, to cause explosive decompression through the walls of the fibres (12) whereby the fluid under pressure passes through said walls. The pressure level in said lumens is maintained at a predetermined value for a sufficient time following said decompression to cause substantial portions of solids lodged within and/or on the fibre walls to be dislodged. The dislodged contaminant matter is then washed away by the application of a flow of liquid over the surface of the fibre walls; and the concentration part of the operating cycle is recommenced by introducing the supply of feed suspension to said exterior surface of said fibres (12).
摘要翻译：公开了一种用于从液体进料悬浮液中回收细小固体的方法和装置。该装置具有操作循环，该操作循环包括在进料悬浮液中存在的固体浓缩的循环的浓缩部分以及中断供给到浓缩器的进料悬浮液的循环的回洗部分，该浓缩器包括壳体（11），以及多个弹性中空微孔聚合物纤维（12），其端部固定在壳体（11）内。加压进料悬浮液在循环的所述浓缩部分期间供应到纤维的外部，并且在操作循环期间，滤液可以从纤维流明中排出。在回洗循环期间，循环的浓度部分通过停止向纤维（12）的所述外表面的供给供给来终止。然后将壳体（11）密封，并将剩余的滤液从管腔中移出。然后在将壳体（11）打开到大气之前，同时或刚刚打开壳体（11）之后，将压力下的流体源施加到所述内腔，以通过纤维（12）的壁引起爆炸性减压，从而使压力下的流体穿过所述墙壁。在所述减压之后，所述内腔中的压力水平保持在预定值足够的时间，以使得在纤维壁内和/或纤维壁上滞留的大部分固体被移除。然后通过在纤维壁的表面上施加液体流将洗脱的污染物质洗掉; 并且通过将供给悬浮液的供应引入所述纤维（12）的所述外表面来重新开始操作循环的浓度部分。

2. 发明申请

WO1991017204A1 POLYVINYLIDENE FLUORIDE MEMBRANE 审中-公开
标题翻译：聚乙烯氟化物膜
公开(公告)号：WO1991017204A1
公开(公告)日：1991-11-14
申请号：PCT/AU1991000198
申请日：1991-05-09
申请人： MEMTEC LIMITED , BECK, Thomas, William , LEE, Matthew, Brian , GRANT, Richard, David , STREETON, Robert, John, William
发明人： MEMTEC LIMITED
IPC分类号： C08J09/28
CPC分类号： C08J9/28 , B01D67/0011 , B01D67/0018 , B01D67/0027 , B01D67/003 , B01D69/02 , B01D69/08 , B01D71/34 , B01D2323/08 , B01D2323/12 , C08J2327/16
摘要： A method of making a porous polymeric material by heating a mixture comprising polyvinylidene fluoride and a solvent system initially comprising a first component that is a latent solvent for polyvinylidene fluoride and a second component that is a non-solvent for polyvinylidene fluoride wherein, at elevated temperature, polyvinylidene fluoride dissolves in the solven system to provide an optically clear solution. The solution is then rapidly cooled so that non-equilibrium liquid-liquid phase separation takes place to form a continuous polymer rich phase and a continuous polymer lean phase with the two phases being intermingled in the form of bicontinuous matrix of large interfacial area, and cooling is continued until the polymer rich phase solidifies. The polymer lean phase is removed from the solid polymeric material. A porous material so prepared is characterised by a lacey or filamentous structure consisting of a plurality of polymer strands (1) connected together at a number of locations (2) spaced apart along each strand.
摘要翻译：一种通过加热包含聚偏二氟乙烯和溶剂系统的混合物制备多孔聚合材料的方法，该溶剂体系最初包含作为聚偏二氟乙烯的潜溶剂的第一组分和作为聚偏氟乙烯的非溶剂的第二组分，其中在高温下，聚偏二氟乙烯溶解在溶剂系统中以提供光学透明的溶液。然后将溶液快速冷却，使得发生非平衡液 - 液相分离以形成连续聚合物富相和连续的聚合物贫相，其中两相以大界面积的双连续基体的形式混合，并且冷却继续进行，直到聚合物富集相凝固。从固体聚合物材料中除去聚合物贫相。如此制备的多孔材料的特征在于由沿着每条链间隔开的多个位置（2）连接在一起的多个聚合物股线（1）组成的花边或丝状结构。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式