Mkpụcha ọla kọpa, nke a yiri ka ọ dị mfe nke ukwuu, nwere usoro nrụpụta dị nro ma dị mgbagwoju anya. Usoro a gụnyere iwepụ na ime ka ọla kọpa dị ọcha, imepụta mkpụcha ọla kọpa, na usoro nhazi mgbe emechara ya.
Nzọụkwụ mbụ bụ mwepụta na ime ka ọla kọpa dị ọcha. Dịka data sitere na United States Geological Survey (USGS) si kwuo, mmepụta ọla kọpa zuru ụwa ọnụ ruru tọn nde iri abụọ na 20 na 2021 (USGS, 2021). Mgbe ewepụtara ọla kọpa ahụ, site na usoro dị ka ịpịpịa, ịkpụcha, na flotation, enwere ike nweta copper concentration nwere ihe dị ka 30% copper ọdịnaya. Ihe copper concentrations ndị a na-aga usoro nchacha, gụnyere ịgbaze, ntụgharị ihe, na electrolysis, na-emesịa na-emepụta copper electrolytic dị ọcha ruo 99.99%.
Ihe na-esote bụ usoro mmepụta nke foil ọla kọpa, nke enwere ike kewaa n'ụdị abụọ dabere na usoro nrụpụta: foil ọla kọpa electrolytic na foil ọla kọpa a kpụgharịrị.
A na-eme foil ọla kọpa Electrolytic site na usoro electrolytic. N'ime sel electrolytic, anode ọla kọpa na-agbaze nwayọ nwayọ n'okpuru ọrụ nke electrolyte, ion ọla kọpa, nke ugbu a na-akwali, na-aga n'ihu na kathode ma mepụta nkwụnye ọla kọpa n'elu kathode. Ọkpụrụkpụ nke foil ọla kọpa electrolytic na-abụkarị site na micromita 5 ruo 200, nke enwere ike ijikwa kpọmkwem dịka mkpa nke teknụzụ sekit sekit (PCB) ebipụtara (Yu, 1988).
N'aka nke ọzọ, a na-eji ígwè arụ ọrụ nke e ji ígwè rụọ. Malite na mpempe ọla kọpa dị milimita ole na ole n'ọkpụrụkpụ, a na-eji nwayọọ nwayọọ eme ya ka ọ dị gịrịgịrị site na ịpịgharị ya, na-emecha mepụta mpempe ọla kọpa nke nwere ọkpụrụkpụ na ọkwa micrometer (Coombs Jr., 2007). Ụdị mpempe ọla kọpa a nwere elu dị nro karịa mpempe ọla kọpa electrolytic, mana usoro mmepụta ya na-eri ike karịa.
Mgbe e mepụtara foil ọla kọpa ahụ, ọ na-abụkarị mgbe e mechara nhazi ya, gụnyere annealing, ọgwụgwọ elu, wdg, iji melite arụmọrụ ya. Dịka ọmụmaatụ, annealing nwere ike ime ka ike na ịdị ike nke foil ọla kọpa dịkwuo elu, ebe ọgwụgwọ elu (dịka oxidation ma ọ bụ mkpuchi) nwere ike ime ka iguzogide nchara na njikọta nke foil ọla kọpa dịkwuo mma.
Na nchịkọta, ọ bụ ezie na usoro mmepụta na nrụpụta nke foil ọla kọpa dị mgbagwoju anya, mmepụta ngwaahịa nwere mmetụta dị ukwuu na ndụ anyị nke oge a. Nke a bụ ngosipụta nke ọganihu teknụzụ, na-agbanwe akụrụngwa okike ka ọ bụrụ ngwaahịa teknụzụ dị elu site na usoro nrụpụta ziri ezi.
Agbanyeghị, usoro imepụta foil ọla kọpa na-ewetakwa ụfọdụ ihe ịma aka, gụnyere oriri ike, mmetụta gburugburu ebe obibi, wdg. Dịka akụkọ si kwuo, mmepụta nke otu tọn ọla kọpa chọrọ ihe dị ka 220GJ nke ike, ma na-emepụta tọn 2.2 nke ikuku carbon dioxide (Nortey et al., 2014). Ya mere, anyị kwesịrị ịchọta ụzọ ndị ka mma isi mepụta foil ọla kọpa.
Otu ihe ngwọta nwere ike ịbụ iji ọla kọpa emegharịrị emepụta foil ọla kọpa. A kọrọ na oriri ike nke imepụta ọla kọpa emegharịrị bụ naanị pasentị iri abụọ nke ọla kọpa mbụ, ọ na-ebelatakwa mmegbu nke akụrụngwa ọla kọpa (UNEP, 2011). Na mgbakwunye, site na mmepe nke teknụzụ, anyị nwere ike ịmepụta usoro nrụpụta foil ọla kọpa dị irè karị ma na-echekwa ike, na-ebelata mmetụta gburugburu ebe obibi ha.
Na mmechi, usoro mmepụta na nrụpụta nke foil ọla kọpa bụ mpaghara teknụzụ juputara na ihe ịma aka na ohere. Ọ bụ ezie na anyị enweela ọganihu dị ukwuu, a ka nwere ọtụtụ ọrụ a ga-arụ iji hụ na foil ọla kọpa nwere ike igbo mkpa anyị kwa ụbọchị ma na-echebe gburugburu ebe obibi anyị.
Oge ozi: Julaị-08-2023