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公开(公告)号:US20180195189A1
公开(公告)日:2018-07-12
申请号:US15917847
申请日:2018-03-12
发明人: KENICHIRO SUYAMA , KAZUHIRO KUROSU , MASAAKI KATO , HIDEO OTSU
IPC分类号: C25B15/02 , D21C11/00 , D21C3/02 , C25B15/08 , C25B9/08 , C02F1/46 , C25B1/00 , C25B1/14 , C02F1/461
CPC分类号: C25B15/02 , C02F1/4602 , C02F1/46109 , C02F2001/46119 , C02F2201/4611 , C25B1/00 , C25B1/14 , C25B9/08 , C25B15/08 , D21C3/02 , D21C11/0042
摘要: An electrolysis method of preventing the voltage of an electrolytic bath from rising over time without halting electrolysis and an electrolysis device for executing the method are provided such that: in operation of a two-compartment electrolytic bath, which has a membrane partitioning an anode compartment from a cathode compartment and in which a sulfide ion-containing white liquor for use in a pulp production process is fed into the anode compartment while direct current is supplied to the electrolytic bath to produce polysulfide in the anode compartment through electrolysis, and a sulfide ion-containing white liquor for use in a pulp production process that contains at least one of a scale cleaning agent and a scale inhibitor is fed to the anode compartment.