公开(公告)号：US20190330752A1

公开(公告)日：2019-10-31

申请号：US16506081

申请日：2019-07-09

Applicant: UACJ CORPORATION

Inventor： Junji Nunomura ,  Yukio Honkawa ,  Yoichi Kojima ,  Mikito Ueda

IPC: C25C3/18

Abstract: A method for producing aluminum includes: a dissolution step of dissolving a hydrate containing Al in water to prepare an aqueous solution that contains Al ions; an extraction step of bringing an organic phase that is composed of an extractant into contact with an aqueous phase that is composed of the aqueous solution to extract the Al ions in the aqueous phase into the organic phase; and an electrodeposition step of electrolyzing the organic phase as an electrolytic solution to electrodeposit metallic Al onto a surface of a cathode from the Al ions in the electrolytic solution.

公开(公告)号：US10927469B2

公开(公告)日：2021-02-23

申请号：US16662898

申请日：2019-10-24

Applicant: UACJ CORPORATION

Inventor： Junji Nunomura ,  Yoichi Kojima ,  Mikito Ueda

IPC: C25D3/66 ,  C25D3/44 ,  C25D5/44

Abstract: A production method of aluminum including: a step of synthesizing an aluminum compound from a mixture including a halogenated aluminum hydrate and a perfluoroalkylsulfonimide-type or perfluoroalkylsulfonamide-type ionic liquid represented by general formula (1); a step of dissolving the aluminum compound in a nitrile-based organic solvent to prepare an aluminum electrolyte; a step of adding at least one ligand selected from a phosphorus compound and an organic compound having an amide group to the aluminum electrolyte and dehydrating water molecules from a hydrate included in the aluminum electrolyte; and a step of electrodepositing aluminum on a cathode by allowing electricity to pass between an anode and the cathode in the aluminum electrolyte after the dehydrating step.

公开(公告)号：US11225725B2

公开(公告)日：2022-01-18

申请号：US16506081

申请日：2019-07-09

Applicant: UACJ CORPORATION

Inventor： Junji Nunomura ,  Yukio Honkawa ,  Yoichi Kojima ,  Mikito Ueda

IPC: C25C1/02 ,  C25C1/22 ,  C25C3/18

Abstract: A method for producing aluminum includes: a dissolution step of dissolving a hydrate containing Al in water to prepare an aqueous solution that contains Al ions; an extraction step of bringing an organic phase that is composed of an extractant into contact with an aqueous phase that is composed of the aqueous solution to extract the Al ions in the aqueous phase into the organic phase; and an electrodeposition step of electrolyzing the organic phase as an electrolytic solution to electrodeposit metallic Al onto a surface of a cathode from the Al ions in the electrolytic solution.