| 释义 |
cyanicide Metallurgy.|saɪˈænɪsaɪd|
[f. cyanide + -cide 1.]
Any substance present in an ore or in tailings which consumes the cyanide in the solution used for cyaniding gold or silver, so reducing its effectiveness as a solvent for those metals.
1894Jrnl. Soc. Chem. Industry 31 Oct. 951/2 To overcome the cyanide-destroying qualities of the acid or iron salts present it is necessary to have recourse to neutralisation.., with or without a preliminary water washing to remove such soluble ‘cyanicides’ as may be present. 1904Julian & Smart Cyaniding xxviii. 202 The principal cyanicide remaining in the Rand concentrates is the basic ferric sulphate. 1936J. 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. 1966McGraw-Hill Encycl. Sci. & Technol. VI. 233/1 Sulfides of copper, iron, antimony, and arsenic (cyanicides)..consume cyanide and oxygen, thus causing poor gold recoveries. |