cyanide process


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cyanide process

n.
A process of extracting gold or silver from ores by treating them with a solution of sodium cyanide or calcium cyanide.

cyanide process

n
(Metallurgy) a process for recovering gold and silver from ores by treatment with a weak solution of sodium cyanide. Also called: cyaniding

cy′anide proc`ess


n.
a process for extracting gold or silver from ore by dissolving the ore in an alkaline solution of sodium cyanide or potassium cyanide and precipitating the gold or silver.
[1885–90]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cyanide process - an industrial process for extracting gold and silver by treating ore with a sodium cyanide solution
industrial process - a systematic series of mechanical or chemical operations that produce or manufacture something
References in periodicals archive ?
In Sarawak "where the gold occurs in a condition that is unique," the cyanide process for gold recovery required considerable adaptation, as described in detail in Park's 1906 classic textbook for mining students, metallurgists, and cyanide operators (Park 1906).
Now, due to the expense of bone charcoal color case hardening, many Italian reproduction gun makers employ the cyanide process.
From 1979 through 1982, the Comstock Mill operated without a Plan of Operations or reclamation bond, receiving ore from area mines and extracting gold using the cyanide process and depositing mill tailings in an adjacent 40-acre, unlined, tailings impoundment.
Modern methods of mining and of treating ore were unknown; the cyanide process had not been developed.
9) So far as I can determine, this is the first statewide ban on cyanide process mining in the United States.
Indications are that, when expressed in terms of surface area, the medium is at least as efficient as carbon would be in the cyanide process.