公开(公告)号：US20250058285A1

公开(公告)日：2025-02-20

申请号：US18451389

申请日：2023-08-17

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Umair BAIG ,  Abdul WAHEED

IPC: B01D69/14 ,  B01D17/04 ,  B01D65/02 ,  B01D67/00 ,  B01D69/02 ,  B01D71/34 ,  B01D71/48 ,  B01D71/62 ,  C02F1/32 ,  C02F1/44 ,  C02F1/72

Abstract: A filtration membrane including a first layer comprising a polyester terephthalate nonwoven fabric, a second layer comprising a polyvinylidene fluoride matrix doped with a polyvinylpyrrolidone and titanium dioxide nanoparticles, and a third layer comprising a polypyrrole polymer. A method of making the membrane is also described. The membrane of the present disclosure is self-cleaning under visible light irradiation conditions.

公开(公告)号：US12227627B2

公开(公告)日：2025-02-18

申请号：US18535450

申请日：2023-12-11

Applicant: UNIVERSITY OF SOUTH CAROLINA

Inventor： Laura A. Murdock ,  Lihui Wang ,  Fei Huang ,  Brian C. Benicewicz

IPC: C08J5/22 ,  B01D67/00 ,  B01D69/10

Abstract: Novel PBI films which may be used in electrochemical cells, such as redox flow batteries, are disclosed. Additionally, disclosed herein are membranes which comprise the novel PBI films which may be free from an organic solvent, and have a tensile strength at break of at least 25 MPa after drying.

公开(公告)号：US12226742B2

公开(公告)日：2025-02-18

申请号：US17319730

申请日：2021-05-13

Applicant: FUJIFILM Corporation

Inventor： Akihiro Ikeyama

IPC: B01D71/68 ,  B01D67/00 ,  B01D69/10 ,  B01D69/12 ,  B01D71/38 ,  B01D71/44

Abstract: The present invention provides a method for manufacturing a porous membrane having high water permeability and hydrophilicity, which is not easily affected by a treatment such as washing, the method including: preparing, as a substrate, a membrane having a plurality of pores, which includes a water-insoluble resin such as polysulfone and a water-soluble resin including a monomer unit of polyvinylpyrrolidone or a monomer unit of polyvinyl alcohol; and irradiating the substrate with an electron beam in the presence of an aqueous solvent to crosslink at least a part of the water-soluble resin.

公开(公告)号：US12226739B2

公开(公告)日：2025-02-18

申请号：US16803291

申请日：2020-02-27

Applicant: Phillips 66 Company ,  Georgia Tech Research Corporation

Inventor： Kiwon Eum ,  Shaowei Yang ,  Byunghyun Min ,  Chen Ma ,  Jeffrey H. Drese ,  Yash Tamhankar ,  Ryan P. Lively ,  Sankar Nair

IPC: B01D67/00 ,  B01D69/12 ,  B01D69/14 ,  B01D71/02 ,  B01D71/62

Abstract: A method of forming a molecular separation device is provided. The method comprises growing or depositing a silica MFI zeolite coating on a ceramic support. The method further comprises growing a ZIF-8 coating on the silica MFI zeolite coating. Growing the ZIF-8 coating on the silica MFI zeolite comprises applying a first reactant fluid including a metal salt and a second reactant fluid including an imidazole reactant to the silica MFI zeolite coating. Growing the ZIF-8 coating on the silica MFI zeolite further comprises reacting the first and second reactant fluid with the silica MFI zeolite coating to produce the ZIF-8 coating. In certain implementations, at least a portion of the ZIF-8 coating is interspersed with a portion of the silica MFI coating. A molecular separation device including the ZIF-8 coating and the silica MFI zeolite is also disclosed.

公开(公告)号：US20250050284A1

公开(公告)日：2025-02-13

申请号：US18719644

申请日：2022-12-16

Applicant: GAMBRO LUNDIA AB

Inventor： Jan J.T.M. SWARTJES ,  Stefanie VOTTELER ,  Markus STORR ,  Markus HORNUNG

IPC: B01D71/68 ,  A61M1/16 ,  A61M1/34 ,  A61M1/36 ,  B01D67/00 ,  B01D69/06 ,  B01D69/08 ,  B01D71/44

Abstract: The present disclosure relates to a membrane prepared from a blend comprising i) a polysulfone, polyether sulf one or polyarylethersulfone and ii) polyvinylpyrrolidone, characterized in that the membrane is coated with polydopamine and chon-droitin. Optionally the coating further comprises heparin. The disclosure further relates to a process for producing the coated membrane, a method of increasing the selectivity of a membrane, and to a filtration/diffusion device comprising the membrane which can be used, for example, in hemodialysis applications.

公开(公告)号：US12220668B2

公开(公告)日：2025-02-11

申请号：US18280280

申请日：2022-04-20

Applicant: Nanjing Hanssen Material Technology Co., Ltd.

Inventor： Linfeng Yuan ,  Johnny Marcher

IPC: B01D67/00 ,  B01D63/06 ,  B01D69/02 ,  B01D71/02 ,  C04B35/565 ,  C04B35/626 ,  C04B35/634 ,  C04B35/638 ,  C04B35/64 ,  C04B38/00 ,  C04B41/00 ,  C04B41/45 ,  C04B41/50 ,  C04B41/87

Abstract: A high-flux silicon carbide ceramic filter membrane and a preparation method thereof are provided. In the preparation method, a separation layer is directly coated at a time on the basis of a support, that is, after the support is sintered, the separation layer is directly coated and then sintered for carbon removal. In the present disclosure, a sintering process and a coating formula are optimized to prevent fine silicon carbide particles from entering micropores of a support due to capillary filtration and film formation during coating, such that a separation layer with an average pore size of 0.2 μm or less can be directly coated on a silicon carbide support with an average pore size of 10 μm or more, and fine silicon carbide particles can be effectively prevented from entering micropores of the support during the coating.

公开(公告)号：US12220666B2

公开(公告)日：2025-02-11

申请号：US17147330

申请日：2021-01-12

Applicant: Saudi Arabian Oil Company

Inventor： Stephen N. Paglieri ,  Zainb S. Alismail ,  Aadesh Harale

IPC: B01D71/00 ,  B01D53/22 ,  B01D65/10 ,  B01D67/00 ,  B01D69/02 ,  B01D69/04 ,  B01D69/10 ,  B01D69/12 ,  B01D71/02 ,  C01B3/50 ,  G01M3/06

Abstract: A hydrogen-selective membrane including a metal leaf applied to a substrate. A system and method for fabricating a hydrogen-selective membrane, including applying a metal leaf to a substrate, annealing the metal leaf, applying a hydrogen-permeable metal to the annealed metal leaf on the substrate, and annealing the hydrogen-permeable metal and the annealed metal leaf to give an alloy of the hydrogen-permeable metal and the metal leaf. A system and method for repairing a hydrogen-selective membrane having defects including applying a metal leaf to an external surface of membrane material of the hydrogen-selective membrane, annealing the metal leaf and metal of the membrane material to form an alloy of the metal leaf and the metal to repair the defects.

公开(公告)号：US12214320B2

公开(公告)日：2025-02-04

申请号：US17763628

申请日：2020-09-24

Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

Inventor： Jungkyu Choi ,  Kwan-Young Lee ,  Sungwon Hong

IPC: B01D71/02 ,  B01D67/00 ,  B01D69/02 ,  B01D69/10

Abstract: The present invention relates to a separator membrane having a hierarchical structure, a production method therefor and a xylene separation method using same, and to: a separator membrane having a hierarchical structure comprising mesopores, the separator membrane having mesopores introduced inside a microporous zeolite separator membrane, thereby being thin, having less defects and exhibiting high xylene permeation and separation performance; a production method therefor; and a xylene separation method using same.

公开(公告)号：US12214315B2

公开(公告)日：2025-02-04

申请号：US18382884

申请日：2023-10-23

Applicant: SiTration, Inc.

Inventor： Brendan D. Smith ,  Jatin Patil ,  Daniel Bregante ,  Ahmed Helal ,  Hee Yun Choi Kim ,  Morgan Baima ,  Jeffrey C. Grossman ,  Noah Letwat

IPC: B01D61/08 ,  B01D61/02 ,  B01D67/00 ,  B01D69/02 ,  B01D71/02 ,  C23C16/24 ,  C23C16/50 ,  C23C16/56 ,  G03F7/30 ,  H01M10/54

Abstract: The present disclosure relates to systems and methods for electrically conductive membrane separation from a mixture solution via membrane nanofiltration, electro-filtration, or electro-extraction by: generating an electric field at the membrane filter, holding the membrane filter at a constant electric potential, or driving a constant current through the membrane filter; feeding a mixture solution through the membrane nanofiltration system; and separating a component from the mixture solution into a permeate solution.

公开(公告)号：US20250032996A1

公开(公告)日：2025-01-30

申请号：US18886995

申请日：2024-09-16

Applicant: Matregenix, Inc.

Inventor： Sherif Soliman ,  Feng Guo

IPC: B01D69/02 ,  B01D67/00 ,  B01D69/12 ,  B01D71/38 ,  B01D71/40 ,  C02F1/00 ,  C02F101/20

Abstract: Electrospun poly(acrylic) acid (PAA)/poly(vinyl) alcohol PVA nanofibers and integrated filtration membranes generated therefrom are disclosed herein. The membranes are suitable for use in selectively removing heavy metals such as lead and cadmium from water. The surface of the nanofibers is preferably functionalized with one or more chelating agents. The membranes have a high removal efficiency and adsorption capacity with well-distributed high-density heavy metal adsorption sites with strong binding affinities for targeted heavy metals.