Iindlela kunye neeNkqubo zokuSusa i-Cyanide kwi-Surface ye-Sulfida Ores

Ukutsalwa kwe-cyanidation yinkqubo esetyenziswa kakhulu kushishino lwemigodi yegolide. Nangona kunjalo, ukutsalwa kwe-cyanidation tailings kudla ngokuba yimingeni emikhulu. Ezi tailings zihlala ziqulathe i- cyanides enomlinganiselo ophantsi , igolide nesilivere engakhutshwanga, kunye neeminerali ezithwala izinto ezifana ne-chalcopyrite kunye ne-pyrite. Imiphezulu yee -sulfide ores kwezi tailings ithintelwa yi -Sodium cyanide ngexesha lenkqubo ye-cyanidation. Nangona umgangatho we-ore uphantsi kwaye uxinzelelo lwe -cyanide lungaphezulu kakhulu, umthamo omkhulu wee-tailings uzenza zibe yingxaki enkulu.

Okwangoku, kukho iindlela ezintathu zonyango eziqhelekileyo ze-cyanidation leaching tailings: ukusebenza kweasidi, ukusebenza kwe-oxidant, kunye nobhedu - unyango lwetyuwa.

Indlela yokwenza iAcid

Indlela yokuvula i-asidi ibandakanya ukongeza i-asidi ye-sulfuric okanye i-oxalic acid ukuze kusebenze i-tailings. Nangona le ndlela inokuthi isebenze ngokufanelekileyo i-tailings, inezithintelo ezininzi. Okokuqala, ithanda ukuvelisa igesi eyityhefu neyingozi yehydrogen cyanide. Nangona irhasi yehydrogen cyanide efunyenweyo inokuphinda isetyenziswe, umsebenzi ubeka umngcipheko omkhulu. Okwesibini, indawo eneasidi inokonakalisa ngokulula izixhobo kunye nemibhobho, ifuna amanyathelo akwinqanaba eliphezulu lokuchasa umhlwa.

Indlela ye-Oxidant Activation

Kwindlela yokwenza i-oxidant activation, i-hydrogen peroxide okanye i-hypochlorite yongezwa ukuze kusebenze i-tailings. Nangona kunjalo, kunzima ukulawula ngokuchanekileyo umthamo we-oxidant. Izixa ezigqithise kancinci zinokwenza i-oxidize ores yesulfide, ukunciphisa ukubuyiswa kwazo. Ngaphezu koko, ii-oxidants ezininzi ziyawonakalisa umzimba womntu, nto leyo ebeka umngcipheko kwimpilo yabasebenzi.

Ubhedu - Indlela yoNyango lweTyuwa

Indlela yokunyanga icopper - ityuwa isebenzisa iityuwa ezingaphiliyo ezifana ne-copper sulfate okanye iityuwa zentsimbi ukuze kusebenze iintsalela. Nangona kunjalo, imimiselo yokusingqongileyo ineemfuno ezingqongqo zokukhutshwa kweeyoni zethusi kumanzi amdaka. Ukongezelela, ii-ion zobhedu zi-activators ze-sphalerite kunye ne-pyrite. Ngoko ke, le ndlela ayifanelekanga kwimisila ye-cyanidation equkethe zombini i-sphalerite kunye ne-pyrite, kwaye ayihambelani nokusingqongileyo.

Ukuqukumbela, unyango lwe-cyanidation leaching tailings lunika imingeni enzima. Ngaphandle komxholo wecyanide ophantsi, iindleko eziphezulu zotyalo-mali kunye nokhuseleko olungqongqo kunye neemfuno zokusingqongileyo zenza kube yimfuneko ukuhlola iindlela ezintsha, ezisebenzayo, kunye nezizinzileyo zonyango. Oku kunokubanakho ukubandakanya indibaniselwano yobuchule obukhoyo okanye uphuhliso lweendlela ezintsha ngokupheleleyo zokujongana neenkxalabo zokusingqongileyo nezoqoqosho ezinxulumene nale misila.