University of Nevada, Reno
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Solubility of zinc in the Merrill-Crowe process
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Mackay195_FangM.pdf (1.080Mb)
Date
1992Type
ThesisDepartment
Mining and Metallurgical Engineering
Degree Level
Master's Degree
Degree Name
Metallurgical Engineering
Abstract
The solubility of metallic of zinc occurring in the cementation of gold and silver has been established in a laboratory-size Merrill-Crowe apparatus. The effect of several parameters, namely, cyanide, oxygen, gold, silver, and lead nitrate concentrations on the solubility of zinc were determined. In this system, an increase in concentration of cyanide, oxygen and gold or silver increases zinc solubility but does not always promote the efficiency of gold and silver precipitation. Zinc is consumed largely by oxygen and water. A single mechanism of the enhancement of precious metal cementation in the presence of lead nitrate does not appear to be operative. The enhancement is probably due to several phenomena.
Description
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Permanent link
http://hdl.handle.net/11714/1276Additional Information
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