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：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：US11918958B2

公开(公告)日：2024-03-05

申请号：US17791497

申请日：2020-06-04

申请人： AT&M ENVIRONMENTAL ENGINEERING TECHNOLOGY CO., LTD.

发明人： Hu Gu ,  Junjun Yang ,  Fan Wang ,  Guanying Liu ,  Yu Zhang ,  Ying Dai ,  Xuan Yang ,  Kun Wang ,  Shiyu Lin

IPC分类号： B01D71/02 ,  B01D39/20 ,  B01D67/00 ,  B01D69/10

CPC分类号： B01D71/0223 ,  B01D39/2034 ,  B01D39/2044 ,  B01D67/00411 ,  B01D67/00412 ,  B01D67/0046 ,  B01D67/0069 ,  B01D69/108 ,  B01D2239/0654 ,  B01D2323/081 ,  B01D2323/12 ,  B01D2323/20 ,  B01D2323/2182 ,  B01D2323/2185 ,  B01D2325/22

摘要： The present invention discloses a Fe—Al-based metal porous membrane and a preparation method thereof, which relate to the technical field of industrial gas-solid and liquid-solid separation and purification, and mainly address problems in the prior art, such as cracking-prone and peeling of a membrane layer of an existing Fe—Al-based metal porous membrane during its preparation and use. The preparation method of the present invention comprises the steps of: adding a Fe—Al-based metal powder and a metal fiber powder into an organic-additive-added water-based solvent, and mixing them into a slurry; casting the slurry, through a casting machine, to form a membrane green body on a metal substrate layer, and letting it dry; and placing the dried membrane green body in a sintering furnace, to remove organic substances and perform high-temperature sintering and predetermined-temperature reaction synthesis.