Inqubo eyenza uqweqwe ukuthi akheke ngaphakathi kwamabhodwe etiye ingasiza futhi ukuhlanza ukungcola okuphethwe yi-nickel emanzini olwandle, ngokocwaningo olusha oluvela esiqhingini esiseNingizimu Pacific saseNew Caledonia.
       I-Nickelizimayini ziyimboni eyinhloko eNew Caledonia;isiqhingi esincane singesinye sezimboni ezinkulu zensimbi emhlabeni.Kodwa inhlanganisela yemigodi emikhulu evulekile kanye nemvula enamandla ibangele inani elikhulu le-nickel, i-lead nezinye izinsimbi ezigcina emanzini azungeze iziqhingi.Ukungcoliswa kwe-nickel kungaba yingozi empilweni yomuntu njengoba ukugcwala kwayo ezinhlanzini nasezimbazeni kwanda njengoba unyusa iketango lokudla.
UMarc Jeannin, unjiniyela wezemvelo e-University of La Rochelle eFrance, nozakwabo eNyuvesi YaseNew Caledonia eNouméa bazibuza ukuthi bangakwazi yini ukusebenzisa inqubo yokuvikela i-cathodic, inqubo esetshenziselwa ukulwa nokugqwala kwezakhiwo zensimbi zasolwandle, ukuze bathole okuthile. nickel emanzini.
Uma amandla kagesi abuthakathaka asetshenziswa ezinsimbi emanzini olwandle, i-calcium carbonate ne-magnesium hydroxide iphuma emanzini bese yenza amadiphozi e-lime phezu kwensimbi.Le nqubo ayikaze ifundwe lapho kukhona ukungcola kwensimbi okufana ne-nickel, futhi abacwaningi bazibuza ukuthi ingabe amanye ama-nickel ion angase avaleleke emgwaqeni.
Ithimba lajikijela izintambo zensimbi ebhakedeni lamanzi olwandle okwenziwa enziwe usawoti we-NiCl2 futhi lasebenzisa umsinga kagesi opholile kulo izinsuku eziyisikhombisa.Ngemva kwalesi sikhathi esifushane, bathola ukuthi cishe amaphesenti angu-24 e-nickel ayekhona ekuqaleni ayevaleleke esikalini.
U-Jannen uthi kungaba yindlela engabizi futhi elula yokususai-nickelukungcola.“Asikwazi ukukuqeda ngokuphelele ukungcola, kodwa lokho kungaba enye yezindlela zokukunqanda,” kusho yena.
Imiphumela yayingahleliwe ngandlela thize, njengoba ukuqedwa kokungcola kwakungeyona enye yezinhloso zohlelo lokuqala locwaningo.Ucwaningo oluyinhloko luka-Janine lugxile ekuthuthukiseni izindlela zokulwa nokuguguleka kogu: ufunda ukuthi amadiphozi e-lime agqitshwe enezintambo zocingo phansi olwandle angasebenza kanjani njengohlobo lukasimende wemvelo, okusiza ukusimamisa amadiphozi ngaphansi kwama-dykes noma ogwini olunesihlabathi.
U-Jannin waqala iphrojekthi eNew Caledonia ukuze anqume ukuthi inethiwekhi ingathwebula yini ukungcoliswa kwensimbi okwanele ukusiza ukutadisha umlando wesayithi wokungcoliswa kwe-nickel.“Kodwa lapho sithola ukuthi singathwebula inqwaba ye-nickel, saqala ukucabanga ngezinto ezingase zisetshenziswe ezimbonini,” uyakhumbula.
Le ndlela ayikhiphi nje i-nickel, kodwa nenqwaba yezinye izinsimbi, kusho usokhemisi wemvelo uChristine Orians wase-University of British Columbia eVancouver."Ukuna kwemvula ngokubambisana akukhethi kakhulu," utshele iChemistry World.“Angazi ukuthi kuzosebenza kahle yini ekukhipheni izinsimbi ezinobuthi okwanele ngaphandle kokukhipha izinsimbi ezingase zibe usizo njenge-ayoni.”
UJeanning, nokho, akanandaba nokuthi uhlelo, uma lusatshalaliswa ngezinga elikhulu, luzosusa amaminerali abalulekile olwandle.Ezivivinyweni ezisuse kuphela amaphesenti angu-3 e-calcium namaphesenti angu-0.4 e-magnesium emanzini, okuqukethwe kwe-iron olwandle kuphakeme ngokwanele ukuba kungabi nomthelela omningi, esho.
Ngokuqondile, uJeannin uphakamise ukuthi uhlelo olunjalo lungasatshalaliswa ezindaweni ezilahlekayo kakhulu njengechweba laseNoumea ukusiza ukunciphisa inani le-nickel.i-nickelegcina olwandle.Ayidingi ukulawula okuningi futhi ingaxhunywa emithonjeni yamandla avuselelekayo njengamaphaneli elanga.I-nickel nokunye ukungcola okubanjwe esikalini kungatholwa futhi kusetshenziswe kabusha.
UJeanning uthe yena nozakwabo basebenzisana nezinkampani zaseFrance naseNew Caledonia ukuthuthukisa iphrojekthi yokuhlola ukusiza ukunquma ukuthi uhlelo lungasatshalaliswa yini ngezimboni.
© I-Royal Society of Chemistry document.write(idethi entsha().getFullYear());Inombolo yomthetho: 207890