cyanide process
The "cyanide process" is a pivotal method in metallurgy for extracting precious metals, particularly gold and silver, from their ores using cyanide solutions.
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Definition
C1Metallurgy
(technical, industrial)A method for extracting gold and silver from ores by dissolving them in a cyanide solution, typically sodium cyanide or potassium cyanide.
Example
- The cyanide process is widely used in the mining industry for gold extraction.
- This technique allows for the efficient recovery of precious metals from low-grade ores.
C2Metallurgy
(technical, industrial)A technique for case-hardening iron or steel by immersing it in molten cyanide and then quenching in water or oil.
Example
- Case-hardening steel using the cyanide process improves its surface hardness and wear resistance.