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Electrorefining copper at high current densities.

Authors
Smith-GR; McCawley-FX; Needham-PB Jr.; Richardson-PE
Source
Avondale, MD: U.S. Department of the Interior, Bureau of Mines, RI 8397, 1979 Jan; :1-30
Link
NIOSHTIC No.
10007956
Abstract
This report describes research carried out by the Bureau of Mines to develop new technology for electrorefining metals at much higher current densities than those normally used in commercial practice. Preliminary studies using rotating-ring and cylinder electrodes to increase the mass transport of copper are discussed. Following this work, single- and multichannel cells were developed that utilized a high electrolyte flow in the channels formed by the anode-cathode pairs. Using these cells, copper was successfully refined at current densities in the range of 70 to 300 amp/ft3. The effects of flow rate, electrolyte composition, and grain-refining and leveling agents on the morphology and purity of electrodeposited copper were determined.
Publication Date
19790101
Document Type
IH; Report of Investigations
Fiscal Year
1979
NTIS Accession No.
PB80-133945
NTIS Price
A03
Identifying No.
RI-8397
NIOSH Division
AVRC
Source Name
Avondale, MD: U.S. Department of the Interior, Bureau of Mines, RI 8397
State
MD
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