Ukoresheje sulfate ya ferrous gufata umurizo muri mine ya zahabu

Umurizo wa mine ya zahabu urimo umubare munini wa cyanide. Ariko, ions ferrous muri sulfate ya ferrous irashobora kwitwara imvi hamwe numudendede yubusa murwego, hanyuma utanga cyanide ya ferrous nibindi bintu. Iyi myitwarire irashobora kugira ingaruka kubijyanye na reactions ibisubizo mubihe bimwe byo hanze. Kurugero, kuvurwa kwa cyanide-birimo amazi ya feri hamwe na sulfate ferrote munsi yubushyuhe bwinshi, agaciro ka PH gake, kandi ultraviolet Imashini zivaho zizagira ingaruka kubisubizo. Umudendekazi wa ferrous ntahungabana cyane, kandi mugihe cyo gusubira inyuma, igisubizo cya ferrous cyanide byoroshye, gitera umwanda mwinshi wamazi yubutaka. Reka dusesengure muburyo bwimyitwarire nibisubizo byo kongeramo cyanide kuri sulfate ferrous. Reka dukore igeragezwa ryo kongeramo cyanide mugihe hari byinshi bya sulfate. Ibyo ni ukuvuga, iyo sulfate ya ferrous yongerewe kumuti wa cyanide, cyanide izahinduka feroni nyinshi [FE (CN) 6] 3, mubisanzwe twita ubururu bwa Prussian. Birumvikana, muburyo bwo gutunganya imiyoboro muri zahabu, ibigo bimwe na bimwe bidahitamo kongeramo sulfate ferrous kugirango wongere sulfide ya ferrous. Amasosiyete amwe ahitamo kongeramo ibyuma numuringa icyarimwe kugirango atange ibihano byera wanide ferrous. Icyuma cya ferrous gikurura ogisijeni kuva mu kirere, gihinduka ubururu bwijimye, kandi ni feri Ferric Ferricananide.

Irashobora kurangizwa binyuze mubushakashatsi bwiza bwo gukuraho cyanide kuva hamwe na sulfate ferrote nugushakisha inzira itanga ibintu byoroshye kandi bidahujwe. Mugihe cyubushakashatsi, twabaze igipimo cyimiterere yimyitwarire yimyitwarire ya sulfate fer na cn-. Ubwa mbere, igipimo kibarwa ukurikije Stoichiometrie yari 0.39, ariko igipimo cyimuka cyiza twabonye binyuze mu kubara hari 0.5. . Ph ya Optimal yo guciriritse ubururu bwa Prussian ni 5.5 kugeza 6.5. Muri rusange, ogisijeni irashobora kuri oxyen irashobora kunyeganyega ion ferririyanide na veon ferririkide ion, bitameze neza kugirango ikureho ya Cyanide. Kuberako ferricyanate ion idahungabana munsi ya acide, izakira kugirango ikore pentacyano fer-fe (cn) 5h2o] 3-, nikihe buryo bwihuse kuri ferriritaniete ion Fe (CN). ) 63-. Ibi bitekerezo bikunze kugaragara kuri PH indangagaciro ziri munsi ya 4. Nyuma yubushakashatsi, amaherezo tumenyereye kuri zahabu imiyoboro minini yo gukoresha sulfate ya ferrous kugirango tukureho cyanide ni agaciro cya 5.5 kugeza 6.5. Umubare wumubare nicyo gikwiye cyane, kandi igipimo cya FE kuri CN-0.5 nicyo gikwiye gutunganya.