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cyanide process
noun
- 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 from the solution.
cyanide process
noun
- a process for recovering gold and silver from ores by treatment with a weak solution of sodium cyanide Also calledcyaniding
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Word History and Origins
Origin of cyanide process1
First recorded in 1885–90
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Example Sentences
Including the most recent Improvements in the Cyanide Process.
From Project Gutenberg
The dirt is now treated by what is termed the cyanide process.
From Project Gutenberg
Jack was no longer Jack, but a mixture of Alington, deep levels, and cyanide process.
From Project Gutenberg
Again the milling results were not good, and what it demanded was the cyanide process.
From Project Gutenberg
The improved dioxide cyanide process was adopted about 1895.
From Project Gutenberg
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