公开(公告)号：US20230347295A1

公开(公告)日：2023-11-02

申请号：US17637169

申请日：2021-11-18

申请人： ARUN CO., LTD.

发明人： Soon Bong OH ,  Jun Won OH

IPC分类号： B01D67/00 ,  B01D69/14 ,  B01D71/34 ,  B01D71/02 ,  B01D69/10 ,  B01D69/02 ,  B01D69/12

CPC分类号： B01D67/00793 ,  B01D69/148 ,  B01D71/34 ,  B01D71/0211 ,  B01D71/0212 ,  B01D71/024 ,  B01D69/10 ,  B01D69/02 ,  B01D69/1213 ,  B01D2325/02834 ,  B01D2325/24 ,  B01D2325/20 ,  B01D2323/081 ,  B01D2323/082 ,  B01D2323/18 ,  B01D2323/2185 ,  B01D2323/2187 ,  B01D2323/21819 ,  B01D2323/56

摘要： A method of manufacturing a PVDF composite separation membrane according to an embodiment of the present disclosure has advantages in that it is possible to control the size of pores in various ways based on the nonsolvent-induced phase transition process and calcination process, and manufacture a porous high-strength PVDF composite separation membrane having high water permeability, and it is possible to manufacture a PVDF composite separation membrane which may exhibit durability that does not damage the membrane even under high pressure, while having heat resistance applicable even at a high temperature of 150° C., and excellent chemical resistance to acids and alkalis, and suppress heavy metal adsorption and biofouling phenomenon, and may allow an organic material to be decomposed by ultrasonic waves or UV photocatalysts. In addition, the PVDF composite separation membrane has excellent mechanical, thermal and chemical resistance properties, suppresses the biofouling phenomenon, and exhibits high ultrasonic reactivity.

公开(公告)号：US20230191338A1

公开(公告)日：2023-06-22

申请号：US18083155

申请日：2022-12-16

申请人： Dalian University of Technology

发明人： Shuo CHEN ,  Chengyu YUAN ,  Qi ZHANG ,  Gaoliang WEI ,  Xie QUAN

IPC分类号： B01D71/02 ,  B01D69/02 ,  B01D67/00 ,  C01B32/907 ,  C01B32/921

CPC分类号： B01D71/0221 ,  B01D69/02 ,  B01D67/00416 ,  B01D67/006 ,  B01D67/0058 ,  B01D67/0076 ,  C01B32/907 ,  B01D71/021 ,  C01B32/921 ,  B01D2325/36 ,  B01D2325/26 ,  B01D2325/28 ,  B01D2323/08 ,  B01D2323/12 ,  B01D2323/10 ,  B01D2323/21817 ,  B01D2323/21815 ,  B01D2323/28 ,  B01D2323/36 ,  B01D2323/56

摘要： The present disclosure provides a rigid self-supporting MXene separation membrane and a preparation method and use thereof, belonging to the technical field of membranes. In the present disclosure, a MXene material is mixed with an aluminum salt powder to conduct one-step membrane formation by hot-pressing. The pressure forms the powder into a membrane and imparts rigidity, enabling a self-supporting structure; the heating breaks an ionic bond of an inorganic metal salt to reach a molten ionic state, and free metal cations react with active oxygen-containing functional groups on the surface of the MXene to form new chemical bonds (such as an Al—O bond); such a chemical bond has higher energy, achieving a desirable anti-swelling effect to improve the membrane stability. The separation membrane further has excellent conductivity and hydrophilicity.

公开(公告)号：US20240335795A1

公开(公告)日：2024-10-10

申请号：US18731315

申请日：2024-06-02

申请人： Northeast Normal University

发明人： Yuyang Tian ,  Mengxiao Sun ,  Guangshan Zhu

IPC分类号： B01D67/00 ,  B01D71/60 ,  B82B3/00 ,  C07C211/54 ,  C07C215/74 ,  C07D231/12

CPC分类号： B01D67/0006 ,  B01D71/60 ,  C07C211/54 ,  C07C215/74 ,  C07D231/12 ,  B01D2323/081 ,  B01D2323/12 ,  B01D2323/219 ,  B01D2323/24 ,  B01D2323/56 ,  B82B3/0033

摘要： The present disclosure relates to the field of porous material synthesis, and particularly to a method for preparing porous aromatic framework membranes based on an inorganic salt template method. It aims at the problem of difficulty of preparation of porous aromatic framework membranes in large scale and large size. It uses alkynyl-containing building units and bromine-containing building units as raw materials and obtains continuous, dense, defect-free porous aromatic framework membranes through Sonogashira-Hagihara coupling polymerization. It specifically successfully prepares porous aromatic framework nanosheets on an inorganic salt substrate, and then produces a centimeter-scale large size continuous porous aromatic framework membrane through self-assembly. The method has mild conditions, a simple preparation process, and it is easy to operate. The prepared membranes have high yield and large area, and meet the requirements of actual industrial production.

公开(公告)号：US20240246039A1

公开(公告)日：2024-07-25

申请号：US18417576

申请日：2024-01-19

申请人： ENTEGRIS, INC.

发明人： Mahesh Narkhede ,  Vinay Kalyani

IPC分类号： B01D69/12 ,  B01D67/00 ,  B01D69/02 ,  B01D71/26

CPC分类号： B01D69/1213 ,  B01D67/0083 ,  B01D67/0086 ,  B01D67/009 ,  B01D69/02 ,  B01D69/1214 ,  B01D69/1216 ,  B01D71/261 ,  B01D71/262 ,  B01D2323/56 ,  B01D2323/58 ,  B01D2325/02 ,  B01D2325/04

摘要： Described are porous membrane products that contain two or more membrane layers bonded together at a portion of the area of the membranes, methods and system for preparing the porous membrane products, and methods of using the porous membrane products.

公开(公告)号：US11951445B2

公开(公告)日：2024-04-09

申请号：US18195735

申请日：2023-05-10

申请人： Harbin Engineering University

发明人： Jun Wang ,  Bingtao Zhang ,  Hongsen Zhang ,  Qi Liu ,  Jiahui Zhu ,  Jingyuan Liu ,  Jing Yu ,  Rongrong Chen ,  Lele Wang

IPC分类号： B01D69/14 ,  B01D61/02 ,  B01D67/00 ,  B01D69/02 ,  B01D69/10 ,  B01D71/42 ,  C02F1/30 ,  C02F1/44 ,  C02F1/70 ,  C02F101/20 ,  C02F103/08

CPC分类号： B01D69/145 ,  B01D67/00113 ,  B01D67/0013 ,  B01D67/0016 ,  B01D67/00793 ,  B01D69/02 ,  B01D69/105 ,  B01D69/108 ,  B01D69/14111 ,  B01D71/421 ,  B01D61/025 ,  B01D2323/081 ,  B01D2323/12 ,  B01D2323/21 ,  B01D2323/21813 ,  B01D2323/21817 ,  B01D2323/2185 ,  B01D2323/2187 ,  B01D2323/22 ,  B01D2323/56 ,  B01D2325/025 ,  B01D2325/34 ,  C02F1/30 ,  C02F1/441 ,  C02F1/70 ,  C02F2101/20 ,  C02F2103/08

摘要： The present disclosure relates to the field of materials for uranium extraction from seawater (UES), and in particular, to a photothermal photocatalytic membrane for seawater desalination and uranium extraction and a preparation method therefor. The present disclosure provides a photothermal photocatalytic membrane for seawater desalination and uranium extraction and a preparation method therefor. The preparation method includes: fixing a treated carbon cloth to a glass plate, pouring a casting solution 1 onto the carbon cloth to form a first layer of film, forming a second layer of film using a casting solution 2, and putting the second layer of film into a first coagulation bath and a second coagulation bath in sequence to form the photothermal photocatalytic membrane. The photothermal photocatalytic membrane is supported by the carbon cloth, and a surface of the photothermal photocatalytic membrane is of a micro-nano structure.

公开(公告)号：US11766643B1

公开(公告)日：2023-09-26

申请号：US18134194

申请日：2023-04-13

申请人： KING FAISAL UNIVERSITY

发明人： Khaled Mohamed Amen Ramadan ,  Hani Saber Sayed Saudy ,  Sameh Ahmed Rizk

IPC分类号： B01D61/02 ,  B01D61/36 ,  B01D69/02 ,  B01D71/10 ,  B01D71/54 ,  B01D71/82 ,  C02F1/44 ,  C02F103/08 ,  B01D67/00 ,  B01D69/12 ,  B01D71/56

CPC分类号： B01D71/82 ,  B01D61/025 ,  B01D61/364 ,  B01D67/0018 ,  B01D69/02 ,  B01D69/1251 ,  B01D71/10 ,  B01D71/54 ,  B01D71/56 ,  C02F1/441 ,  C02F1/447 ,  B01D2323/36 ,  B01D2323/39 ,  B01D2323/46 ,  B01D2323/56 ,  B01D2325/026 ,  B01D2325/02831 ,  B01D2325/06 ,  B01D2325/26 ,  B01D2325/38 ,  C02F2103/08

摘要： A hydrophobic biofilm membrane modified with a spiropolyurethane may be used for desalination of salt water to fresh water. The spiropolyurethane component of the membrane can produce a hydrophobic spin membrane boundary which attracts saline water, and where the hydrophobic spin membrane boundary can comprise a hinge-like motion for capture of salt molecules via a loose pore-gate spongy membrane surface texture while allowing desalinated water to flow through the porous membrane. The membrane is useful in both reverse osmosis (RO) and membrane distillation (MD) separations, including the desalination.