For example, the following reaction occurs: The smelting method of gold and silver ores using a dilute solution of cyanide such as sodium cyanide (NaCN) as a solvent has been widely used for a long time as the cyanidation process. This is due to the following reaction: 4Au + O 2 + 8CN - + 2H 2 O - → 4Au(CN) 2 - + 4OH - 4Ag + O 2 + 8CN - + 2H 2 O - → 4Ag(CN) 2 - + 4OH - . *Some of the terminology that refers to the "cyanidation process" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…例えば,のようなぐあいである。 シアン化ナトリウムNaCNなどのシアン化合物の希薄溶液を溶媒とする金・銀鉱の製錬法は青化製錬法cyanidation processとして古くから広く行われている。これらは, 4Au+O2+8CN-+2H2O ―→4Au(CN)2-+4OH- 4Ag+O2+8CN-+2H2O ―→4Ag(CN)2-+4OH-の反応による。… ※「cyanidation process」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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