The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 02, 2024
Filed:
Nov. 07, 2021
Toagosei Co., Ltd., Tokyo, JP;
Kaneka Corporation, Osaka, JP;
Tsutomu Ohnishi, Aichi, JP;
Tsugiyoshi Osakabe, Aichi, JP;
Tatsurou Yamashita, Tokushima, JP;
Takuya Shimura, Aichi, JP;
Mikihito Sugiyama, Hyogo, JP;
Yukinori Iguchi, Okayama, JP;
TOAGOSEI CO., LTD., Tokyo, JP;
KANEKA CORPORATION, Osaka, JP;
Abstract
Apparatus for producing alkali hydroxide and method for operating apparatus for producing alkali hydroxide are provided. A cooling chamber through which a coolant can pass is constructed by placing a separation wall in a cathode chamber on a side opposite to an ion-exchange membrane, and a flow rate adjuster, such as manual valves, which can adjust the supply flow rate of the coolant is placed in each unit cell. The electrolytic temperature of each unit cell is regulated at an optimum operating temperature depending on the current density by adjusting the flow rate of the coolant without individually adjusting the flow rate of salt water supplied to the unit cell or the concentration of the salt water.