Inqubo efanayo eyenza ama-crusts akhe ngaphakathi kwama-teapot angasiza ukusulai-nickelukungcoliswa kwamanzi olwandle, ngokocwaningo olusha olwenziwa esiqhingini saseNingizimu Pacific saseNew Caledonia.
Imayini ye-nickel iyimboni eyinhloko yaseNew Caledonia, futhi isiqhingi esincane singesinye sabakhiqizi abakhulu bensimbi emhlabeni.Kodwa inhlanganisela yezinkwali ezinkulu kanye nemvula enamandla kusho ukuthi inani elikhulu le-nickel, kanye nomthofu nezinye izinsimbi, ziphelela emanzini azungeze isiqhingi.Ukungcoliswa kwe-nickel kungaba yingozi empilweni yomuntu njengoba ukugcwala kwayo ezinhlanzini nasezimbazeni kwanda njengoba kwenyusa iketango lokudla.
UMarc Jeannin, unjiniyela wezemvelo e-University of La Rochelle eFrance, nozakwabo eNyuvesi YaseNew Caledonia eNoumea bazibuza ukuthi bangakwazi yini ukusebenzisa inqubo yokuvikela i-cathodic, inqubo esetshenziselwa ukulawula ukugqwala kwezakhiwo zensimbi zasolwandle, ukuze badonse ezinye. i-nickel emanzini..
Uma amandla kagesi abuthakathaka asetshenziswa ezinsimbi emanzini olwandle, kubangela i-calcium carbonate ne-magnesium hydroxide ukuthi iphume emanzini bese kwakheka amadiphozi e-lime ebusweni bensimbi.Le nqubo ayikaze ifundwe lapho kukhona ukungcola kwe-metallic njenge-nickel, futhi abacwaningi bazibuza ukuthi amanye ama-nickel ion angancipha yini.
Ithimba lajikijela izintambo zensimbi ebhakedeni lamanzi olwandle okwenziwa ahlanganiswe nosawoti we-NiCl2 futhi lasebenzisa umsinga kagesi opholile kulo izinsuku eziyisikhombisa.Ekupheleni kwalesi sikhathi esifushane, bathola ukuthi cishe amaphesenti angama-24 e-nickel ayekhona ekuqaleni ayevaleleke ezilinganisweni zesilinganiso.
UJeannine uthi lokhu kungaba indlela eshibhile futhi elula yokuqeda lei-nickel.“Asikwazi ukukuqeda konke ukungcola, kodwa lokhu kungaba yindlela yokukunqanda,” usho kanje.
Imiphumela yayingalindelekile ngandlela-thile, njengoba ukuqedwa kokungcola kwakungekho phakathi kwemigomo yohlelo lokuqala lokucwaninga.Ucwaningo oluyinhloko lukaJeannin lugxile ekuthuthukiseni izindlela zokulwa nokuguguleka kogu—uhlola indlela amatshe e-limestone agqitshwe enethale locingo phansi olwandle angakwazi ukusebenza njengosimende wemvelo, okusiza ukusimamisa inzika ngaphansi kwamadamu noma ogwini olunesihlabathi.
UJeannin waqala iphrojekthi eNew Caledonia ukuze anqume ukuthi i-mesh ingabamba ukungcola kwensimbi okwanele ukusiza ukufunda umlando wei-nickelukungcola endaweni.“Kodwa lapho sithola ukuthi singabamba inani elikhulu le-nickel, saqala ukucabanga mayelana nezinhlelo ezingase zisetshenziswe ezimbonini,” uyakhumbula.
UChristine Orian, usokhemisi wezemvelo eNyuvesi yaseBritish Columbia eVancouver, uthi le ndlela ayikwazi ukususa i-nickel kuphela, kodwa inqwaba yezinye izinsimbi."Ukuna kwemvula ngokubambisana akukhethi kakhulu," utshele iChemistry World.“Angazi ukuthi kungasebenza kahle yini ekukhipheni izinsimbi ezinobuthi okwanele ngaphandle kokukhipha izinsimbi ezingaba wusizo njenge-ayoni.”
Nokho, uJeannine akanandaba nokuthi lolu hlelo, uma lusatshalaliswa ngezinga elikhulu, luzophuca izilwandle amaminerali abalulekile.U-3% kuphela we-calcium kanye no-0.4% we-magnesium akhishiwe emanzini ngesikhathi sokuhlolwa, futhi uthi okuqukethwe kwe-iron olwandle kuphezulu ngokwanele ukuthi kungaphazamisi kakhulu.
Ikakhulukazi, uJeannin wasikisela ukuthi isimiso esinjalo singatshalwa ezindaweni ezine-nickel ephezulu, njengechweba laseNouméa, ukuze kuncishiswe inani eliphelela olwandle.Idinga ukugadwa okuncane futhi ingaxhunywa emithonjeni yamandla avuselelekayo njengamaphaneli elanga.I-nickel nokunye ukungcola okuvaleleke esikalini kungatholwa futhi kusetshenziswe kabusha.
UJeannin uthe yena nozakwabo basebenzisana nezinkampani zaseFrance naseNew Caledonia ukuthuthukisa iphrojekthi yokuhlola ukusiza ukuthola ukuthi lolu hlelo lungasatshalaliswa yini ngokwentengiso.
I-molecule eshibhile inikeza ukusebenza okufanayo nokubizayo okukhonainsimbiama-catalysts, kodwa ibhekene nezinkinga ezinkulu mayelana nokuzinza kwayo.
Umnikelo oyizigidi ezingama- $210 ovela kusomabhizinisi waseModerna kanye nomtshali-zimali u-Tim Springer ukuze asekele ucwaningo oluqhubekayo
© I-Royal Society of Chemistry document.write(idethi entsha().getFullYear());Inombolo yomthetho: 207890