公开(公告)号：US20200048421A1

公开(公告)日：2020-02-13

申请号：US16344882

申请日：2016-11-01

Applicant: BL Technologies, Inc.

Inventor： Kai ZHANG ,  Li May GOH ,  Seng Yong GOH ,  John H. BARBER ,  Russell James MACDONALD ,  Yongchang ZHENG ,  Yonghong ZHAO

IPC: C08J5/22 ,  B01J39/20 ,  B01D61/46 ,  B01D69/02 ,  B01D71/40

Abstract: The present disclosure provides a method of producing a cation exchange polymer, the method includes polymerizing an anionic monomer in the presence of a polymerizable crosslinker having a cationic functional group. A sufficient amount of anionic monomer is used to provide both the anionic charges necessary for cation exchange, and the anionic charges necessary to pair with the cationic functional groups in the crosslinker.

公开(公告)号：US20230017973A1

公开(公告)日：2023-01-19

申请号：US17955445

申请日：2022-09-28

Applicant: BL Technologies, Inc.

Inventor： John H. BARBER ,  Wojciech GUTOWSKI ,  Yongchang ZHENG ,  Russell James MACDONALD

IPC: B01D61/50 ,  B01D63/08

Abstract: The present disclosure provides an electrodialysis stack that may be used for the treatment of an electrically conductive solution. The stack includes two electrodes (at least one is a recessed electrode), a plurality of ion-transport membranes and stack spacers. The membranes and spacers are arranged between the electrodes to define electrodialysis cell pairs. The stack includes an electrically insulated zone that extends substantially from a distribution manifold past the recessed edge of the electrode and substantially from the recessed electrode to the opposite electrode for a distance that is about 8% to 100% of the total distance between the electrodes. The overlap distance that the electrically insulated zone extends past the recessed edge of the electrode is calculated as: distance in cm=(0.062 cm−1)*(exp(−60/total cp)*(area in cm2 of the manifold ducts of the concentrated stream at the recessed edge)+/−10%.

公开(公告)号：US20240139684A1

公开(公告)日：2024-05-02

申请号：US18408133

申请日：2024-01-09

Applicant: BL TECHNOLOGIES, INC.

Inventor： John H. BARBER ,  Wojciech GUTOWSKI ,  Yongchang ZHENG ,  Russell James MACDONALD

IPC: B01D61/50 ,  B01D63/08

CPC classification number: B01D61/50 ,  B01D63/085 ,  B01D2313/14 ,  B01D2325/42

Abstract: The present disclosure provides an electrodialysis stack that may be used for the treatment of an electrically conductive solution. The stack includes two electrodes (at least one is a recessed electrode), a plurality of ion-transport membranes and stack spacers. The membranes and spacers are arranged between the electrodes to define electrodialysis cell pairs. The stack includes an electrically insulated zone that extends substantially from a distribution manifold past the recessed edge of the electrode and substantially from the recessed electrode to the opposite electrode for a distance that is about 8% to 100% of the total distance between the electrodes. The overlap distance that the electrically insulated zone extends past the recessed edge of the electrode is calculated as:


distance in cm=(0.062 cm−1)*(exp(−60/total cp)*(area in cm2 of the manifold ducts of the concentrated stream at the recessed edge)+/−10%.

公开(公告)号：US20200156007A1

公开(公告)日：2020-05-21

申请号：US16750338

申请日：2020-01-23

Applicant: BL TECHNOLOGIES, INC.

Inventor： Yan GAO ,  Russell James MACDONALD ,  Kai ZHANG ,  Yonghong ZHAO

IPC: B01D61/44 ,  B01J41/13 ,  B01J47/12 ,  C08J5/22

Abstract: An ion exchange polymer is provided. The ion exchange polymer is a reaction product of a reaction between a crosslinker monomer and a cationic monomer. The crosslinker monomer is a reaction product of a reaction between a first crosslinking monomer and a second crosslinking monomer. Further, the cationic monomer comprises a quaternary ammonium group. A method for making an ion exchange polymer is also provided. The method comprises a step of preparing a curable solution and a step of curing the curable solution. The step of preparing the curable solution comprises mixing a pair of crosslinking monomers, a cationic monomer that comprises a quaternary ammonium group and an acid. A membrane is also provided. The membrane comprises the ion exchange polymer made by the method provided.

公开(公告)号：US20200070095A1

公开(公告)日：2020-03-05

申请号：US16609406

申请日：2017-05-04

Applicant: BL Technologies, Inc.

Inventor： John H. BARBER ,  Wojciech GUTOWSKI ,  Yongchang ZHENG ,  Russell James MACDONALD

IPC: B01D61/50 ,  B01D63/08

Abstract: The present disclosure provides an electrodialysis stack that may be used for the treatment of an electrically conductive solution. The stack includes two electrodes (at least one is a recessed electrode), a plurality of ion-transport membranes and stack spacers. The membranes and spacers are arranged between the electrodes to define electrodialysis cell pairs. The stack includes an electrically insulated zone that extends substantially from a distribution manifold past the recessed edge of the electrode and substantially from the recessed electrode to the opposite electrode for a distance that is about 8% to 100% of the total distance between the electrodes. The overlap distance that the electrically insulated zone extends past the recessed edge of the electrode is calculated as: distance in cm=(0.062 cm−1)*(exp(−60/total cp)*(area in cm2 of the manifold ducts of the concentrated stream at the recessed edge) +/−10%.