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Gold Dissolution in Chloride Solutions.

Authors
Langhans-JW; Lei-KPV
Source
Metall Soc AIME Warrendale, Pennsylvania, 1986 :259-271
Link
NIOSHTIC No.
10005502
Abstract
The Bureau of Mines investigated the dissolution of gold in chloride solutions by cyclic voltammetry. Voltammograms of gold were obtained and provided a means of determining the effects of chloride concentration and different ionic species on the redox potentials and reaction rates for dissolving gold in cacl2 solutions. The potentials for gold dissolution ranged for 1.102 to 0.880 V standard hydrogen electrode in 0.01 to 8.0N cacl2 solutions, respectively. The dissolution rate was increased by increasing the chloride concentration and was further enhanced in chloride solutions containing hydrochloric acid, cupric, ferric, or cobaltic chlorides. The cyclic voltammetry data correlated to the results in the actual leaching of gold from a complex sulfide concentrate and a hydrometallurgical process residue in a chloride system.
Publication Date
19860101
Document Type
OP;
Fiscal Year
1986
NTIS Accession No.
NTIS Price
Identifying No.
OP 5-87
NIOSH Division
RERC;
Source Name
Metall. Soc. AIME, Warrendale, Pennsylvania, 1986, PP. 259-271
State
PA;
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