Search International and National Patent Collections

1. (WO2018123482) METHOD AND DEVICE FOR RECOVERING MOLTEN-SALT ELECTROLYTE

Pub. No.:    WO/2018/123482    International Application No.:    PCT/JP2017/043808
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Thu Dec 07 00:59:59 CET 2017
IPC: C25C 7/06
C25C 3/34
Applicants: HITACHI METALS, LTD.
日立金属株式会社
Inventors: HARA Kenichiro
原 顕一郎
ISHIMOTO Yasushi
石本 靖
MIYAMOTO Yu
宮本 雄
Title: METHOD AND DEVICE FOR RECOVERING MOLTEN-SALT ELECTROLYTE
Abstract:
The present invention addresses the problem of providing a method for recovering a molten-salt electrolyte such as a liquid rare earth metal or an iron alloy thereof accumulated inside an electrolysis tank of a molten-salt electrolysis device in which a molten salt is retained, by drawing up the molten-salt electrolyte using a suction nozzle so that the molten-salt electrolyte is not oxidized, and of providing a device for performing this method. As a solution to the abovementioned problem, this method comprises introducing a non-oxidizing gas into a suction recovery chamber to which a suction nozzle is connected, and immersing the distal end of the suction nozzle in the electrolysis tank in a state in which the introduced non-oxidizing gas is being discharged from the distal end of the suction nozzle, then discontinuing introduction of the non-oxidizing gas into the suction recovery chamber and depressurizing the inside of the suction recovery chamber, and thereby drawing up the liquid molten-salt electrolyte accumulated inside the electrolysis tank using the suction nozzle and recovering the molten-salt electrolyte into the suction recovery chamber. This device is provided with at least a suction recovery chamber and a suction nozzle for performing this method.