-
公开(公告)号：US10569234B2
公开(公告)日：2020-02-25
申请号：US15342370
申请日：2016-11-03
Applicant: BL TECHNOLOGIES, INC.
Inventor： Louisa Ruth Carr , Paul Michael Smigelski, Jr. , Jason Michael Nichols , James Manio Silva
IPC: C08J7/04 , C08J9/36 , B01D61/14 , B01D71/40 , B01D71/76 , B01D71/82 , C08F220/24 , C08F220/28 , C02F1/44 , C08F220/38 , C02F1/58 , C09D133/14 , C02F101/32
Abstract: Provided herein are copolymers and copolymer compositions that are both hydrophilic and oleophobic. The copolymers include structural units derived from a fluoroalkyl monomer and a zwitterionic monomer. It further relates to membranes formed by coating a porous substrate with the copolymeric compositions. The copolymeric coating imparts hydrophilicity and oleophobicity/oil-tolerance to the membranes. The uses of such membranes as microfiltration membrane or ultrafiltration membrane are also provided.
-
公开(公告)号：US11607649B2
公开(公告)日：2023-03-21
申请号：US16961906
申请日：2019-02-08
Applicant: BL TECHNOLOGIES, INC.
Inventor： Paul Michael Smigelski, Jr. , David Olson , Rachel Gettings , Jack Howson , David Moore , Deborah De La Cruz , Hua Wang , Joel Caraher
Abstract: A spiral wound membrane module is suitable for use with high temperature water that may also have a high pH, for example steam injection produced water. The module uses a membrane with a polyphenylene sulfide (PPS) backing material. The feed spacer of the module may be made from polyphenylene sulfide (PPS) or ethylene chlorotrifluoroethylene (ECTFE). The permeate carrier may be made of a woven nylon (i.e. nylon 6, 6) fabric coated with high temperature epoxy. The core tube and anti-telescoping device may be made of polysulfone. In some examples, the module may be used at a temperature of up to 130° C. Optionally, the module may be used at a pH of 9.5 or more. In a filtration method, the module may be operated at a pressure in the range of 150 to 450 psi. The module may be operated at a generally constant pressure.
-
Search Results
2
records
(took 0.01 seconds)
