公开(公告)号：US20240287696A1

公开(公告)日：2024-08-29

申请号：US18562695

申请日：2022-05-12

Applicant: BASF SE

Inventor： Si Jun ZHU ,  Jin Bo SONG ,  Jing Cheng XIA ,  Yong Ming CHEN ,  Cong CHANG ,  You Gang LI ,  Chang Liu XIANG ,  Sheng Hai YANG

IPC: C25D3/32 ,  C25D3/36

CPC classification number: C25D3/32 ,  C25D3/36

Abstract: The present invention relates to an electroplating bath comprising (A) an alkane sulfonic acid or alkanol sulfonic acid; (B) a soluble metal salt of alkane sulfonic acid or alkanol sulfonic acid; and (C) at least one additive selected from—polyether derivatives of formula (I),—sulfonated or sulfated polyether derivatives of formula (II) or—any combinations thereof, wherein the groups in formulae (I) and (II) are as defined in the description and claims. The present invention also relates to a process for refining metal and a process for controlling morphology of metal deposited on cathode in electrolytic refining of the metal, which comprise using the electroplating bath according to the present invention.