公开(公告)号：US20190009267A1

公开(公告)日：2019-01-10

申请号：US16067041

申请日：2016-12-16

Applicant: Dow Global Technologies LLC

Inventor： Kaoru Ohba ,  Kenji Takano ,  Masonori Iida ,  Shinnosuke Abe ,  Takashi Masudo ,  Osamu Kishizaki ,  Ryo Ishibashi ,  Yusuke Yamashita

IPC: B01J47/04 ,  B01J41/07 ,  B01J41/12 ,  B01J39/07 ,  B01J39/05 ,  B01J39/18 ,  C07C67/56 ,  B01D15/36

Abstract: Methods for the removal of ionic contaminants from hydrolysable organic solvent by ion exchange resins are described. A mixed bed of ion exchange resin with cationic ion exchange resin and weak-base anionic ion exchange resin is used in such methods.

公开(公告)号：US10913058B2

公开(公告)日：2021-02-09

申请号：US16067041

申请日：2016-12-16

Applicant: Dow Global Technologies LLC

Inventor： Kaoru Ohba ,  Kenji Takano ,  Masonori Iida ,  Shinnosuke Abe ,  Takashi Masudo ,  Osamu Kishizaki ,  Ryo Ishibashi ,  Yusuke Yamashita

IPC: C07C67/56 ,  B01J47/04 ,  B01J41/07 ,  B01D15/00 ,  B01J39/05 ,  B01J39/07 ,  B01D15/36 ,  B01J39/18 ,  B01J41/12

Abstract: Methods for the removal of ionic contaminants from hydrolysable organic solvent by ion exchange resins are described. A mixed bed of ion exchange resin with cationic ion exchange resin and weak-base anionic ion exchange resin is used in such methods.

公开(公告)号：US20190009266A1

公开(公告)日：2019-01-10

申请号：US16067031

申请日：2016-12-16

Applicant: Dow Global Technologies LLC

Inventor： Kaoru Ohba ,  Kenji Takano ,  Masonori Iida ,  Shinnosuke Abe ,  Takashi Masudo ,  Osamu Kishizaki ,  Ryo Ishibashi ,  Yusuke Yamashita

IPC: B01J47/04 ,  B01J39/05 ,  B01J39/18 ,  B01J41/05 ,  B01J41/12 ,  C07C41/36 ,  B01D15/36

Abstract: Methods for the removal of ionic contaminants from a hydrophilic organic solvent by a mixed bed of ion exchange resins are described. A mixed bed of ion exchange resins with gel-type strong-acid cationic ion exchange resin with a specific moisture holding capacity and gel-type anionic ion exchange resin is used in some embodiments of such methods.

公开(公告)号：US11759774B2

公开(公告)日：2023-09-19

申请号：US16067031

申请日：2016-12-16

Applicant: Dow Global Technologies LLC

Inventor： Kaoru Ohba ,  Kenji Takano ,  Masonori Iida ,  Shinnosuke Abe ,  Takashi Masudo ,  Osamu Kishizaki ,  Ryo Ishibashi ,  Yusuke Yamashita

IPC: B01J47/04 ,  B01J39/05 ,  B01J41/05 ,  B01D15/36 ,  B01J39/18 ,  B01J41/12 ,  C07C41/36

CPC classification number: B01J47/04 ,  B01D15/362 ,  B01D15/363 ,  B01J39/05 ,  B01J39/18 ,  B01J41/05 ,  B01J41/12 ,  C07C41/36

Abstract: Methods for the removal of ionic contaminants from a hydrophilic organic solvent by a mixed bed of ion exchange resins are described. A mixed bed of ion exchange resins with gel-type strong-acid cationic ion exchange resin with a specific moisture holding capacity and gel-type anionic ion exchange resin is used in some embodiments of such methods.