Cyanidation bụ otu n'ime ụzọ ndị bụ isi na-erite uru maka ogbunigwe ọla edo, enwere ike kewaa ya ụzọ abụọ: cyanidation na-akpali akpali na cyanidation percolation.N'ime usoro a, usoro mmịpụta ọla edo nke cyanide na-ejikọta tumadi gụnyere usoro nnọchi cyanide-zinc (CCD na CCF) na cyanide carbon slurry na-abụghị nke a na-enyocha (CIP na CIL).Ngwa nkewa ọla edo a na-ejikarị bụ ngwaọrụ nnọchi zinc ntụ ntụ, tank na-akpali akpali, obere oriri ngwa ngwa desorption electrolysis usoro.
1. Zinc ntụ ntụ ntụ ngwaọrụ bụ ụzọ na-eji zinc ntụ ntụ wepụ ọla edo sitere na mmiri mmiri dị oké ọnụ ahịa na usoro ngbanwe cyanide-zinc.Ihe mepụtara ugbu a bụ nke kachasị maka ngwa enyemaka ọla edo nke nwere nnukwu ọla ọcha na ọla ọla edo.Mgbe emechara mmiri mmiri dị oke ọnụ ahịa ma wepụ oxygen, a na-agbakwunye ngwaọrụ dochie ntụ ntụ zinc iji nweta apịtị ọla edo.Mgbe a na-eji zinc ntụ ntụ (silk) dochie mmiri ozuzo ma nwetaghachi ọla edo, a na-eji usoro a na-akpọ cyanide-zinc nnọchi (CCD na CCF) mee ihe na mmepụta ihe, ma ọ bụ zinc ntụ ntụ ntụ nwere ike iji na-emeso ngwọta dị oke ọnụ (leaching solution). ).N'ikwu okwu n'ozuzu, na mgbakwunye na ebe a na-egwupụta ọla edo nwere ọdịnaya ọlaọcha dị elu, a pụkwara iji ngwaọrụ dochie ntụ ntụ zinc iji hazie ihe ntinye ọla edo dị mkpa iji meziwanye ọkwa ha.
2. Ugboro abụọ impeller leaching akpali akpali tank The abụọ impeller leaching edemede tank bụ a na-ejikarị ịnweta nhazi akụrụngwa na carbon slurry gold mmịpụta usoro (CIP usoro na CIL).N'okpuru ịdọrọ na mkpali nke impeller okpukpu abụọ, slurry na-agbada site na etiti, na-agbasa site na efere damping gbara ya gburugburu, na-agbanye ikuku na njedebe nke ogwe ahụ, na-agwakọta ya na slurry ma na-ekesa elu.Ngwọta a dabara adaba maka ngwa nwere obere ike ndọda, obere viscosity na ọnụego mmiri ozuzo nwayọ., mgbe oke urughuru ore dị n'elu -200 ntupu na ntinye ihe ngwọta ọla edo na-erughị 45%, enwere ike ịmepụta ngwakọta edo edo kwụsịtụrụ.Absorption na ọrụ ngwakọta ndị ọzọ.N'ime usoro CIP nke nkwụnye ego ọla edo, leaching na mgbasa ozi bụ ọrụ onwe ha.N'ime ọrụ mmịpụta ahụ, a na-emecha usoro mkpocha ahụ.A na-ekpebi nha, ọnụọgụ, na ọnọdụ ọrụ nke tankị mgbasa ozi site na paramita mgbasa ozi.Usoro CIL nke nkwụnye ego ọla edo na-agụnye ịhịa aka n'otu oge na ọrụ mgbasa ozi.Ebe ọ bụ na ọrụ leaching n'ozuzu na-ewe ogologo oge karịa ọrụ adsorption, a na-ekpebi nha nke tankị na-akpali akpali site na usoro leaching iji chọpụta ọnụọgụ ikuku na dosing.N'ihi na ọnụego nnabata na-emetụta ọrụ nke mgbaze ọla edo gbazere, a na-emekarị ọkwa 1-2 tupu imi mmiri iji mee ka ntinye nke ọla edo gbazere na tankị adsorption dịkwuo elu ma mee ka oge nkwụsị.
3. Obere-eri ngwa ngwa desorption electrolysis usoro.Ngwa ngwa desorption electrolysis nke na-eri obere ihe bụ ihe eji akwa ọla edo nke na-eme ka carbon na-ebu ọla edo na-emepụta na electrolytes iji mepụta apịtị ọla edo n'okpuru oke okpomọkụ na nrụgide dị elu.A na-eziga slurry carbon ọla edo juru na ihuenyo nkewa carbon (na-abụkarị ihuenyo na-ama jijiji) site na mgbapụta carbon ma ọ bụ ihe ebuli elu.A na-eji mmiri dị ọcha na-asa elu ihuenyo iji kewaa carbon na slurry.Carbon a na-etinye ọla edo na-abanye na tankị nchekwa carbon, slurry na mmiri na-asọpụta.Tinye akụkụ mbụ nke tank adsorption.Iji obere ike na ngwa ngwa desorption electrolysis usoro ịgbakwunye anions nwere ike dochie Au (CN) 2- na Au (CN) 2-, na dị oké ọnụ ahịa mmiri mmiri nwetara site desorbing gold-kwajuru carbon nwere ike naghachi siri ike gold site ionization usoro.The obere ume oriri ngwa ngwa desorption electrolysis usoro nwere a desorption ọnụego nke karịa 98% n'okpuru elu okpomọkụ (150 ° C) na elu mgbali (0.5MPa) ọnọdụ, na ike oriri bụ naanị 1/4 ~ 1/2 nke ot. usoro.Ngwakọta na-adịghị egbu egbu na akụkụ-mmetụta nwere carbon activator, nke nwere ike ịmaliteghachi carbon.Carbon dị nro adịghị mkpa ka e megharịa ya site na usoro ọkụ, nke na-echekwa ego nke nrụpụta carbon.Ọla edo slurry bụ ọkwa dị elu, ọ dịghị achọ ntụgharị electrolysis, ọ dịkwa mfe iwepụ.N'otu oge ahụ, ngwa ngwa desorption electrolysis nke dị ala na-anabatakwa usoro nchekwa atọ, ya bụ ọgụgụ isi nke usoro ahụ n'onwe ya, nkwụsị nrụgide akpaka na mbenata usoro, na valvụ nchekwa mkpuchi.
Oge nzipu: Feb-18-2024
