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单词 cyanidation
释义

cyanidationn.

Etymology: < cyanide v.: see -ation suffix.Previous versions of the OED give the stress as: ˌcyaniˈdation.
Metallurgy.
The process of cyaniding gold or silver ores; the extraction of these metals from their ores by means of the cyanide process.
ΘΚΠ
society > occupation and work > industry > working with specific materials > working with metal > [noun] > extraction from ore > extraction of silver or gold
cyanide process1890
cyaniding1894
cyanidation1896
1896 N. Amer. Rev. Apr. 479 The development of certain wet processes, cyanidation..has supplemented the work.
1900 J. Park Cyanide Process vi. 73 Dry-crushing with cyanidation will soon be entirely displaced by wet-crushing with cyanide.
1915 T. K. Rose Metall. Gold (ed. 6) xiii. 281 The roasting of gold ores as a preliminary to chlorination or cyanidation.
1936 J. V. N. Dorr Cyanidation Gold & Silver Ores ix. 152 If precious-metal ores contain cyanicides, which preclude the use of cyanidation, flotation may be the only solution.
1959 J. Newton Extractive Metall. vii. 431 Cyanidation is the most important for recovering gold, but it is often used in conjunction with other processes.
This entry has not yet been fully updated (first published 1972; most recently modified version published online June 2019).
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n.1896
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