公开(公告)号：US20240149220A1

公开(公告)日：2024-05-09

申请号：US18281533

申请日：2022-03-15

申请人： Asahi Kasei Kabushiki Kaisha

发明人： Ryoichi Takada ,  Yuki Suga ,  Takahiro Osaki ,  Keitaro Suzumura

IPC分类号： B01D61/58 ,  B01D61/00 ,  B01D61/24 ,  B01D61/32 ,  B01D71/02

CPC分类号： B01D61/58 ,  B01D61/0024 ,  B01D61/32 ,  B01D71/028 ,  B01D61/002 ,  B01D61/243 ,  B01D2317/02 ,  B01D2317/04

摘要： A method for reducing the volume of a raw material liquid, the raw material liquid containing at least a valuable and a first solvent, wherein the raw material liquid further contains an accessory component other than the valuable and the first solvent, or contains a mixed solvent including the first solvent and a second solvent as a solvent, and the method for reducing the volume of the raw material liquid is performed by combining a first process in which the first solvent is removed from the raw material liquid and a second process in which the concentration of the second solvent or the accessory component is adjusted from the raw material liquid using a dialysis method with a dialysis membrane.

公开(公告)号：US20220001331A1

公开(公告)日：2022-01-06

申请号：US17296595

申请日：2019-11-27

申请人： Asahi Kasei Kabushiki Kaisha

发明人： Yuki Suga ,  Hiroyuki Arai ,  Tomotaka Hashimoto

IPC分类号： B01D61/36 ,  B01D69/02 ,  B01D63/04 ,  B01D63/14 ,  C02F1/44

摘要： Provided is a membrane distillation module 100 comprising a membrane distillation membrane cartridge 10 and a membrane distillation housing 20, wherein: the membrane cartridge 10 comprises a membrane anchoring part 12 in which porous membranes 11 are anchored by anchoring resin; the housing 20 comprises a housing body 30 and a housing lid 40; the membrane distillation module 100 comprises a support part 60 where the outer surface of the membrane anchoring part 12 is supported by the inner surface of the housing 20 with a seal member 50 interposed therebetween; and a value C in the cross section of the support part 60 is at least 30° C. as represented by the following formula, where dF is the equivalent circular diameter (mm) of the outer circumference of the membrane anchoring part 12, kF is the linear expansion coefficient (1/° C.) of the anchoring resin, dE is the equivalent circular diameter (mm) of the inner circumference of the housing 20; and kE is the linear expansion coefficient (1/° C.) of a portion where the housing 20 contacts the seal member 50.

公开(公告)号：US20240050897A1

公开(公告)日：2024-02-15

申请号：US17641207

申请日：2020-09-17

申请人： Asahi Kasei Kabushiki Kaisha

发明人： Tomotaka Hashimoto ,  Yuki Suga ,  Masato Mikawa ,  Ryoichi Takada

IPC分类号： B01D61/58 ,  C07D209/20 ,  C07C253/34 ,  C07C29/86 ,  C07K1/14 ,  C07K14/62

CPC分类号： B01D61/58 ,  C07D209/20 ,  C07C253/34 ,  C07C29/86 ,  C07K1/145 ,  C07K14/62 ,  B01D61/0022

摘要： Provided are a concentration method and system for concentrating a raw material solution, and in which a raw material solution containing a solute and a solvent is concentrated to obtain a concentrate of the raw material solution, wherein the solvent contains water and an organic solvent. In the method and system for concentrating a raw material solution, the system includes a combination of: a first concentrating means for removing water in the raw material solution by means of a forward osmosis method; and a second concentrating means for evaporating and removing water and an organic solvent in the raw material solution.

公开(公告)号：US20240091709A1

公开(公告)日：2024-03-21

申请号：US17768018

申请日：2020-10-09

申请人： Asahi Kasei Kabushiki Kaisha

发明人： Tomotaka Hashimoto ,  Yuki Suga

IPC分类号： B01D61/36

CPC分类号： B01D61/364 ,  B01D2323/02 ,  B01D2323/21839 ,  B01D2325/02833

摘要： This raw-material liquid concentration system is for use in a pharmaceutical product manufacturing process, and employs a membrane-distillation method involving: bringing a raw-material liquid containing a solvent and a solute into contact with cooling water through a membrane-distillation membrane; passing the solvent in the raw-material liquid through the membrane-distillation membrane in the form of vapor; and causing the solvent to move toward the side of the cooling water, wherein the membrane-distillation membrane is a porous membrane that has a water contact angle of at least 90° at the surface thereof, has an average pore diameter of 0.02-0.5 μm, and has a porosity of 60-90%.

公开(公告)号：US20230398471A1

公开(公告)日：2023-12-14

申请号：US18209048

申请日：2023-06-13

申请人： Asahi Kasei Kabushiki Kaisha

发明人： Akira Kiguchi ,  Yuki Suga ,  Mitsuru Fujita

IPC分类号： B01D17/06

CPC分类号： B01D17/06

摘要： An ammonia recovery method which includes electrodialysis of a treatment liquid comprising an ammonium salt and an acid to obtain a recovered acid solution including ammonia-containing recovered ammonia water and an acid, wherein the electrodialysis is carried out by a two-chamber method using a bipolar membrane and an anion exchange membrane.