公开(公告)号：US20240157354A1

公开(公告)日：2024-05-16

申请号：US18284351

申请日：2022-01-27

Applicant: ORGANO CORPORATION

Inventor： Noriko TAKADA ,  Kaoru NUKUI

IPC: B01J47/016 ,  B01J39/05 ,  B01J39/07 ,  B01J45/00

CPC classification number: B01J47/016 ,  B01J39/05 ,  B01J39/07 ,  B01J45/00

Abstract: A dry ion exchange resin manufacturing method includes: obtaining a purified cation exchange resin by bringing a cation exchange resin to be purified into contact with a mineral acid solution having a metal impurity content of 1 mg/L, or less and a concentration of 5% by weight or more, to purify the cation exchange resin, wherein a total metal impurity elution amount eluted when hydrochloric acid having a concentration of 3% by weight is passed through the purified cation exchange resin with a volume ratio of 25 times is at most equal to 5 μg/mL-R; and a drying step of drying the purified cation exchange resin under reduced pressure at 80° C. or lower until the moisture content is at most equal to 5% by weight.

公开(公告)号：US20240140899A1

公开(公告)日：2024-05-02

申请号：US18499697

申请日：2023-11-01

Applicant: AMALGAMATED RESEARCH LLC

Inventor： Lily Crane ,  Peter V. Ferrero

IPC: C07C51/47 ,  B01D15/18 ,  B01D15/36 ,  B01J39/05 ,  B01J39/18 ,  B01J47/10

CPC classification number: C07C51/47 ,  B01D15/1828 ,  B01D15/1842 ,  B01D15/362 ,  B01J39/05 ,  B01J39/18 ,  B01J47/10

Abstract: Systems and methods for enriching an organic acid from a fermentation broth containing residual color, salts, and carbohydrates using simulated moving bed (“SMB”) chromatography to produce a high purity organic acid extract is disclosed. One embodiment of the method purifies citric acid from a fermentation broth into two product streams: a first product stream rich in salt, color, and carbohydrate impurities, and a second product stream comprising an extract enriched in organic acid.

公开(公告)号：US20240117133A1

公开(公告)日：2024-04-11

申请号：US18271547

申请日：2022-01-27

Applicant: Fujifilm Manufacturing Europe B.V. ,  Fujifilm Corporation

Inventor： Jacko Hessing ,  Elisa Huerta Martinez ,  Adrianus Jacobus Van Rijen ,  Renée Maria Ripken ,  Takeshi Narita

IPC: C08J5/22 ,  B01D67/00 ,  B01D69/02 ,  B01D71/66 ,  B01J39/05 ,  B01J39/19 ,  B01J39/20 ,  B01J47/12 ,  C02F1/42 ,  C02F1/469 ,  C08F212/34 ,  C08F212/36 ,  C08G75/045 ,  C09D4/00 ,  C09D125/18 ,  C09D181/02 ,  H01M8/103 ,  H01M8/1032 ,  H01M8/22

CPC classification number: C08J5/2275 ,  B01D67/0006 ,  B01D69/02 ,  B01D71/69 ,  B01J39/05 ,  B01J39/19 ,  B01J39/20 ,  B01J47/12 ,  C02F1/42 ,  C02F1/4693 ,  C08F212/34 ,  C08F212/36 ,  C08G75/045 ,  C09D4/00 ,  C09D125/18 ,  C09D181/02 ,  H01M8/103 ,  H01M8/1032 ,  H01M8/227 ,  B01D2323/30 ,  B01D2323/345 ,  B01D2325/42 ,  C02F2001/425 ,  C08F2800/20 ,  C08J2325/18 ,  C08J2381/02 ,  H01M2008/1095

Abstract: A polymer film comprising anionic groups and 0.008 to 25 mg/g of each of components (a) and (b): (a) a crosslinking agent which is free from fluoro groups and comprises a group of Formula (I); and (b) a non-ionic crosslinking agent; Formula (I) wherein M+ is a cation and * indicates the attachment points to other elements of the crosslinking agent.

公开(公告)号：US20240018020A1

公开(公告)日：2024-01-18

申请号：US18036043

申请日：2021-09-27

Applicant: ORGANO CORPORATION

Inventor： Noriko TAKADA ,  Kaoru NUKUI ,  Haruo YOKOTA

IPC: C02F1/42 ,  B01J39/05 ,  B01J49/53 ,  C07C211/63

CPC classification number: C02F1/42 ,  B01J39/05 ,  B01J49/53 ,  C07C211/63 ,  C02F2101/38

Abstract: The present invention provides a method for purifying a liquid to be treated, the method being capable of reducing the content of metal impurities in the liquid to be treated containing tetraalkylammonium ions, and further, being capable of suppressing cracking of the resin even when a strongly acidic cation exchange resin is used. The method includes: an impurity removal step of passing a liquid to be treated that contains tetraalkylammonium ions and metal impurities through a container filled with a cation exchange resin of a hydrogen ion form or a tetraalkylammonium ion form to reduce the content of the metal impurities in the liquid to be treated, wherein the degree of cross-linking of the cation exchange resin is from 16% to 24%.

公开(公告)号：US11767239B2

公开(公告)日：2023-09-26

申请号：US17053479

申请日：2019-05-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Mitsuaki Kobayashi ,  Hideyuki Okada ,  Yukihisa Okada ,  Takaaki Shirai

IPC: C02F1/42 ,  B01J39/05 ,  B01J47/018 ,  B01D39/16 ,  B01J45/00 ,  B01J47/026 ,  B01J47/04 ,  C02F101/20 ,  C02F103/04

CPC classification number: C02F1/42 ,  B01D39/16 ,  B01D39/1661 ,  B01J39/05 ,  B01J45/00 ,  B01J47/018 ,  B01J47/026 ,  B01J47/04 ,  B01D2201/182 ,  B01D2239/0414 ,  B01D2239/1291 ,  C02F2001/425 ,  C02F2101/203 ,  C02F2103/04

Abstract: To provide a filter capable of efficiently removing metal ions in a treatment liquid, and capable of easily obtaining a solution having an extremely low metal ion content. A depth filter includes a porous molded article. The porous molded article is a sintered material of mixed powder or a swollen material of the sintered material. The mixed powder contains dried gel powder and thermoplastic resin powder. The dried gel powder contains an ion exchange resin including a sulfonic acid group, and a nitrogen-containing chelating resin.

公开(公告)号：US20230166219A1

公开(公告)日：2023-06-01

申请号：US17912469

申请日：2021-03-08

Applicant: ASTOM CORPORATION

Inventor： Naoto TAKASHINA ,  Masayuki KISHINO ,  Kenji FUKUTA

IPC: B01D67/00 ,  B01D69/10 ,  B01D71/30 ,  B01D69/02 ,  B01D71/28 ,  C08J5/22 ,  B01J39/05 ,  B01J39/20 ,  B01J47/127

CPC classification number: B01D67/0006 ,  B01D69/1071 ,  B01D71/301 ,  B01D69/02 ,  B01D71/281 ,  C08J5/2243 ,  B01J39/05 ,  B01J39/20 ,  B01J47/127 ,  B01D2325/24 ,  B01D2325/26 ,  B01D2325/42 ,  B01D2325/22 ,  C08J2325/12 ,  C08J2427/06 ,  C08J2423/06

Abstract: A cation-exchange membrane using a polyolefin-based substrate with reduced swelling of an ion-exchange resin and a low electrical resistance is provided. The cation-exchange membrane of the present invention includes a substrate made of polyolefin-based woven fabric, and a sulfonic acid group-containing cation-exchange resin. A portion of the cation-exchange membrane other than the substrate has 23 mass % or more to 35 mass % or less of polyvinyl chloride.

公开(公告)号：US20230123364A1

公开(公告)日：2023-04-20

申请号：US17913973

申请日：2021-03-22

Applicant: DAICEL CORPORATION

Inventor： Yasuhiro KIKUCHI ,  Takahito MITOME ,  Naoyuki FUKUI ,  Kazuhito TAKEDA

IPC: C07C51/47 ,  B01J39/05 ,  B01J39/20

Abstract: Provided is a method for producing purified acetic acid with a good hue. A method for producing purified acetic acid, including treating acetic acid having a poor hue with a synthetic adsorbent to obtain acetic acid with an improved hue. The acetic acid to be treated is, for example, acetic acid having an absorbance of 0.01 or greater at a wavelength of 430 nm. The acetic acid to be treated may be acetic acid recovered from an acetic acid-containing solution that is discharged in a cellulose acetate production process. The synthetic adsorbent may have a cation exchange group on a resin surface. The synthetic adsorbent may have a pore structure.

公开(公告)号：US11604123B2

公开(公告)日：2023-03-14

申请号：US16230567

申请日：2018-12-21

Applicant: WATERS TECHNOLOGIES CORPORATION

Inventor： Bonnie A. Alden ,  Kenneth Berthelette ,  Jon Finch ,  Donna Osterman ,  Thomas Swann ,  Thomas H. Walter

IPC: G01N1/40 ,  B01D15/38 ,  B01D15/42 ,  B01D15/36 ,  B01J39/26 ,  B01J39/05 ,  B01D15/32 ,  G01N33/92 ,  G01N30/06 ,  G01N30/00

Abstract: In various aspects, the present disclosure pertains to methods of performing a sample enrichment procedure, which comprise: adding a sample fluid that comprises at least one phospholipid and at least one target analyte to a sorbent that comprises a hydrophobic component and a cation exchange component, thereby resulting in sorbent with bound phospholipid and bound target analyte; adding an aqueous solution comprising an acidic compound and a salt; adding an organic solution to the sorbent thereby desorbing at least a portion of the bound phospholipid from the sorbent; and adding an elution solution to the sorbent, thereby desorbing at least a portion of the bound target analyte from the sorbent and forming a solution of the target analyte in the elution solution. In other aspects, the present disclosure pertains to kits, which may be used in conjunction with such methods.

公开(公告)号：US11603576B2

公开(公告)日：2023-03-14

申请号：US16573034

申请日：2019-09-17

Applicant: Novamont S.p.A.

Inventor： Giampietro Borsotti ,  Francesca Digioia

IPC: B01J47/02 ,  C22B3/42 ,  C22B34/36 ,  B01J39/04 ,  C22B3/00 ,  B01J39/05 ,  C02F1/26 ,  C02F1/42 ,  B01J39/20 ,  C02F101/32 ,  C02F101/20 ,  C02F103/32

Abstract: This invention relates to a process for the recovery of cobalt ions and tungstic acid and/or its derivatives from aqueous solutions, such as in particular the spent catalytic waters deriving from processes for the oxidative cleavage of vegetable oils. In particular this invention relates to a process for the recovery of cobalt ions and tungstic acid and/or its derivatives which provides for the use of cation-exchange resins.

公开(公告)号：US20230074483A1

公开(公告)日：2023-03-09

申请号：US17903567

申请日：2022-09-06

Applicant: The Regents of the University of California

Inventor： David Jassby ,  Arpita Iddya ,  Eric M.V. Hoek

IPC: B01J47/12 ,  B01J39/18 ,  B01J39/05 ,  B01J47/018

Abstract: An ion exchange membrane includes nanoparticulate hydrous manganese oxide, wherein, the ion exchangemembrane is selective for the passage of phosphate ion. Methods of preparing ion exchange membranes and methods of seprating phosate also are described.