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Method for Eliminating Solution-level Attack on Cathodes During Electrolysis.

Authors
Cole-ER Jr.
Source
U S Pat 4 104 132 1978 Aug; :
Link
NIOSHTIC No.
10011921
Abstract
The title invention relates to the attack of a cathode by oxygen in the winning of a metal such as zinc. The essence of this invention is the placing of a barrier between the anode and the cathode. Thus, a znso4 solution was made up by dissolving zno in h2so4 (zn2+ 65 and h2so4 200 g/l). This solution was placed in a 4-l cell containing a pbo2-coated ti anode and a rolled zn cathode. A current density of 50 a/ft2 was used at 35 deg-45 deg c for 24 h. Before electrolysis, plexiglas strips were placed between the anode and cathode, extending across the width of the cell and being approximately 1 cm above and approximately 1 cm below the level of the solution. After 24 h there was no attack on the zn cathode at the solution level.
Publication Date
19780801
Document Type
PA;
Fiscal Year
1978
NTIS Accession No.
NTIS Price
Identifying No.
PAT 4,104,132
NIOSH Division
RORC;
Source Name
U.S. Pat. 4,104,132; Aug. 1, 1978; Chem. Abstr. 89:33,290K
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