Kazhinji, goridhe hariwanikwe zvakananga. Asi, simbi inopwanywa kuti ibudise goridhe, iyo inobva yasangana neSodium Cyanide mukuita kunonzi cyanidation. Maitiro aya anoratidzwa nekuita kwemakemikari kunotevera: Mushure mekunge simbi (NaAu(CN)2) yagadzirwa, activated carbon inosveta gold cyanide complex kubva murwizi rwegoridhe ( pregnant liquor ).
4 Au + 8(NaCN) + O 2 + H 2 O = 4 NaAu(CN) 2 + 4 NaOH
Dhayagiramu iri pamusoro inoratidza goridhe rinonyungudika pamaplate egirafiti ekabhoni yakakangwa . Goridhe rega harinyungudike, uye harizonyungudike nyore nyore nekabhoni yakakangwa kusvika yasvibiswa, zvichigadzira gold- cyanide coordination complex inonzi dicyanoaurate. Ndiyo gold-cyanide complex iyi inokwezvwa nenzvimbo yakakura inowanikwa pakabhoni yakakangwa, zvichibvumira nzira dzakasiyana-siyana dzekudzoreredza.
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