
Okwu Mmalite
N'ihe gbasara mwepụta ọlaedo, usoro cyanidation abụrụla isi ihe dị mkpa kemgbe n'ihi nhọrọ ya na ohere ya. Agbanyeghị, mgbe a na-emeso ọla edo nwere ọla kọpa, mgbagwoju anya nke mineralology na-eweta ihe ịma aka pụrụ iche. Ka ọkwa ọla kọpa, ọlaọcha, na ọlaedo nke ihe ndị mmadụ na-eme n'ụwa niile na-aga n'ihu na-ebelata, na mineralology gbara ya gburugburu na-aghọwanye ihe dị iche iche, ọ dị mkpa ime ka usoro cyanidation ka mma maka mineral ndị a dị mgbagwoju anya. Edemede blọgụ a na-enyocha ojiji na nyocha nke cyanidation maka ọla kọpa nwere ọla kọpa, na-achọ inye nghọta n'ime ụzọ ọgwụgwọ dị irè.
Ihe ịma aka dị na Cyanidating Copper-Bearing Gold Ores
Ihe mgbagwoju anya nke mineral
Ọla edo ndị nwere ọla kọpa na-enwekarị ọtụtụ mineral dị iche iche, gụnyere mineral ígwè sulfide dịka pyrite, pyrrhotite, chalcopyrite, na sphalerite. Na mgbakwunye, ha nwere ike ịnwe ion dị ka Fe²⁺, Cu²⁺, Zn²⁺, S²⁻, na Fe³⁺ na pulp ọla ahụ. N'oge usoro cyanidation leaching, ihe ndị a nwere ike iri nnukwu cyanide na oxygen agbazere agbaze. Dịka ọmụmaatụ, ọnụnọ nke Cu²⁺ nwere ike imeghachi omume na cyanide, na-emepụta ihe mgbagwoju anya kwụsiri ike, si otú a na-ebelata cyanide efu dị maka ịgbaze ọlaedo. Nke a abụghị naanị na ọ na-eme ka oriri cyanide dịkwuo elu kamakwa ọ na-ebelata arụmọrụ nke ịcha ọlaedo.
Oriri Cyanide
Oke ọla kọpa dị n'ime ihe ndị a na-eme ka ọ ghara ịdị oke mma . Ọla kọpa a na-agbaze n'ime ihe ndị a na-aṅụ na-emeghachi omume na cyanide, na-akpata nnukwu ọnụ ahịa ọrụ a na-anabataghị. N'ọnọdụ ụfọdụ, ọkwa ọla kọpa dị na ihe oriri ahụ nwere ike ịgbanwe ka oge na-aga, dịka a hụrụ na ebe a na-egwupụta ihe n'ime Geda Bek nke Anglo Asian Mining na Azerbaijan. Mgbe e guzobere ụlọ ọrụ nhazi ihe na-eme ka mmiri na resin dị n'ime ihe ndị a na-akpọ pulp gold ore, ọkwa ọla kọpa dị elu karịa ka a tụrụ anya ya butere mmụba nke oriri cyanide, n'agbanyeghị ikike ụlọ ọrụ ahụ nwere ijikwa oke ọla kọpa dị na ihe ndị a na-aṅụ na-enweghị mmetụta nke mmepụta ọlaedo nke ukwuu.
Ngwa nke Usoro Cyanidation maka ọla ọla edo na-ebu ọla
Amonia - Cyanide Leaching na-enyere aka
Otu ụzọ a ga-esi dozie ihe ịma aka ndị dị na cyaniding ọla ọla edo na-ebu ọla bụ iji amonia - cyanide leaching na-enyere aka. N'ebe a na-egwupụta ihe nke Geda Bek, a kpọbatara amonia n'ime sekit na-eri nri iji belata oriri cyanide. Achọpụtara na usoro a dị irè n'ibelata mmịpụta ọla kọpa, si otú a na-ebute mbelata dị ukwuu na oriri cyanide n'ime usoro leaching zuru oke. Ojiji nke amonia na ọla kọpa - gold cyanide leach sistemu nwere ogologo akụkọ ihe mere eme, malite na 1902 mgbe Hunt kwadoro iji ya belata oriri cyanide n'oge ọla edo na-esi na ọla kọpa - na-ebu orres. A na-eji usoro cyanide amonia mee ihe n'ahịa iji gwọọ ọdụdụ sitere na Comstock Lode na Nevada na ọla edo cupriferous na Dale, California.
Ngwọta nke Ore Pulp
Idozi ebe a na-eme ahịhịa bụ ihe ọzọ dị mkpa na usoro cyanidation maka ọla ọla edo na-ebu ọla. Pretreatment alkaline nwere ike ibelata oriri cyanide ma melite ogo cyanide leaching nke ọla edo. Mgbe a naghị emepụta pulp ore, CN n'efu na ya bụ nke kacha nta, na-egosi na Fe²⁺, Zn²⁺, S²⁻ na ion ndị ọzọ na-eri CN, yana ọdịnaya nke Cu²⁺, Fe³⁺, Zn²⁺ ions bụkwa nke kacha ala. Mgbe pretreatment, na free CN⁻ na ore pulp bụ dịtụ elu, na Cu²⁺, Fe³⁺, Zn²⁺ ion dị elu karịa ndị na-enweghị pretreatment, nke pụtara na oriri nke free CN⁻ mgbe pretreatment na-ebelata, na ndị na-emerụ ions na-adịghị eri site CN⁻. Ya mere, pretreatment alkaline tupu cyanide leaching nwere ike ịba uru.
Ntuziaka na njikarịcha
Mmepe nke New Reagents na Usoro
Ndị na-eme nchọpụta na-enyocha ihe ọhụrụ na usoro ọhụrụ iji meziwanye usoro cyanidation maka ọla ọla edo na-ebu ọla kọpa. Dịka ọmụmaatụ, iji oxidants inyeaka bụ mpaghara elekwasị anya. Ịgbakwunye oxidants (dị ka oxygen dị ọcha ma ọ bụ oxides ndị ọzọ) n'oge usoro ịhịa aka n'ahụ nwere ike ịbawanye ọdịnaya "oxygen na-arụ ọrụ nke ọma" na pulp ore, meziwanye gburugburu ebe obibi nke cyanidation, mee ka ọsọ ntanaka dịkwuo elu, belata oge nkwụsịtụ, ma belata oriri cyanide. A na-akwalite ojiji nke oxidants inyeaka na gburugburu ụwa dịka teknụzụ kachasị mma maka ịkwalite usoro cyanidation. Tụkwasị na nke ahụ, mmepe nke ndị na-emepụta ihe ọhụrụ, dị ka thiosulfate, bụ nke gosipụtara ike ịwepụ ọla edo site na ọla kọpa na-ebu ọla edo na-arụ ọrụ nke ọma, bụkwa ntụziaka nyocha dị mkpa.
Usoro njikọta na njikarịcha
Ịmekọrịta usoro dị iche iche nwekwara ike ime ka ọ dị mma. Dịka ọmụmaatụ, ijikọ osisi leach mkpasu iwe na arụ ọrụ heap leach/ADR/SART dị ugbu a, dịka a na-eme na ogbunigwe Geda Bek, nwere ike ime ka usoro a na-arụ ọrụ nke ọma karị. Usoro resin-in-pulp, ebe a na-enweta ọla edo site na kọntaktị na resin mgbanwe ion kpọmkwem, bụ akụkụ dị mkpa nke njikọ a. Site n'ịkwalite nchikota nke usoro na akụrụngwa ndị a, enwere ike ịkwalite arụmọrụ nke usoro cyanidation maka ọla ọla edo na-ebu ọla kọpa.
mmechi
Usoro cyanidation maka ọla ọla edo na-ebu ọla ka bụ ụzọ dị mkpa na ụlọ ọrụ Ngwuputa n'agbanyeghị ihe ịma aka ya. Site na atumatu dị ka amonia - enyemaka cyanide leaching, ore pulp pretreatment, na-aga n'ihu na nyocha na mmepe nke ọhụrụ reagents na nhazi nhazi, arụmọrụ na ike akụ na ụba nke usoro cyanidation nwere ike imeziwanye. Ka ụlọ ọrụ na-egwuputa ihe na-aga n'ihu na-eche ihe ịma aka nke ibelata akara ogo ore na mgbagwoju anya mineralogy, ihe ọhụrụ na-aga n'ihu na usoro cyanidation maka ọla kọpa na-ebu ọla edo ga-adị mkpa iji hụ na mmepụta ọla edo na-adịgide adịgide.
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