TY - GEN
T1 - FEM simulation of nodulation in copper electro-refining
AU - Adachi, Ken
AU - Nakai, Yuya
AU - Kitada, Atsushi
AU - Fukami, Kazuhiro
AU - Murase, Kuniaki
N1 - Publisher Copyright:
© The Minerals, Metals & Materials Society 2018.
PY - 2018
Y1 - 2018
N2 - In the copper electro-refining process, short circuiting between the cathode and anode caused by nodulation has the largest impact on the loss of current efficiency. In order to improve current efficiency, it is critically important to study the mechanism of the growth of the nodule. In this study, the nodulation was modeled using the finite element method to simulate the growth of copper bumps attached to the cathode. By considering the scale of the electrodes and their pitch, the relationship between the height of the nodule and its growth rate is investigated. In particular, a threshold height of the nodule that determines whether the nodule will rapidly grow to come in contact with the adjacent anode is identified. By comparing the result of the simulation and the experiments, the effect of leveling additives and the generation of dendritic growth are discussed.
AB - In the copper electro-refining process, short circuiting between the cathode and anode caused by nodulation has the largest impact on the loss of current efficiency. In order to improve current efficiency, it is critically important to study the mechanism of the growth of the nodule. In this study, the nodulation was modeled using the finite element method to simulate the growth of copper bumps attached to the cathode. By considering the scale of the electrodes and their pitch, the relationship between the height of the nodule and its growth rate is investigated. In particular, a threshold height of the nodule that determines whether the nodule will rapidly grow to come in contact with the adjacent anode is identified. By comparing the result of the simulation and the experiments, the effect of leveling additives and the generation of dendritic growth are discussed.
KW - Copper
KW - Electro-refining
KW - FEM
KW - Nodulation
KW - Simulation
UR - http://www.scopus.com/inward/record.url?scp=85042415808&partnerID=8YFLogxK
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U2 - 10.1007/978-3-319-72350-1_20
DO - 10.1007/978-3-319-72350-1_20
M3 - Conference contribution
AN - SCOPUS:85042415808
SN - 9783319723495
T3 - Minerals, Metals and Materials Series
SP - 215
EP - 222
BT - Rare Metal Technology 2018
A2 - Ouchi, Takanari
A2 - Neelameggham, Neale R.
A2 - Wang, Shijie
A2 - Guan, Xiaofei
A2 - Wesstrom, Bradford
A2 - Alam, Shafiq
A2 - Kim, Hojong
A2 - Azimi, Gisele
PB - Springer International Publishing
T2 - International Symposium on Rare Metal Technology, 2018
Y2 - 11 March 2018 through 15 March 2018
ER -