Inkqubo ebangela ukuba i-crusts yenze ngaphakathi kwi-teapots inokunceda ukucoca ungcoliseko lwe-nickel olusuka kumanzi olwandle, ngokutsho kophononongo olutsha oluvela kwisiqithi saseSouth Pacific saseNew Caledonia.
       Nickelimigodi lelona shishini liphambili eNew Caledonia;isiqithi esincinci sesinye sezona zikhulu zentsimbi ezivelisa isinyithi ehlabathini.Kodwa indibaniselwano yemingxuma emikhulu evulekileyo kunye nemvula enkulu ibangele izixa ezikhulu zenickel, ilothe kunye nezinye iintsimbi eziphela emanzini ajikeleze iziqithi.Ungcoliseko lwe-nickel lunokuba yingozi kwimpilo yabantu njengoko ukugxila kwayo kwintlanzi kunye ne-shellfish kuyanda njengoko unyusa ikhonkco lokutya.
UMarc Jeannin, injineli yemekobume kwiYunivesithi yaseLa Rochelle eFransi, kunye noogxa bakhe kwiYunivesithi yaseNew Caledonia eNouméa babezibuza enoba babenokusebenzisa inkqubo yokukhusela i-cathodic, ubugcisa obusetyenziselwa ukulwa nokubola kwezakhiwo zentsimbi yaselwandle, ukuze bafumane okuthile. nickel emanzini.
Xa umbane obuthathaka usetyenziswa kwiintsimbi ezisemanzini olwandle, i-calcium carbonate kunye ne-magnesium hydroxide ziphuma emanzini kwaye zenze iidiphozithi zekalika kumphezulu wesinyithi.Le nkqubo ayizange ifundwe phambi kokungcola kwesinyithi njenge-nickel, kwaye abaphandi bazibuza ukuba ezinye iioni ze-nickel zingabanjwa kwi-precipitate.
Iqela lajula ucingo lwentsimbi kwi-emele enamanzi olwandle enziweyo netyuwa ye-NiCl2 egalelwe kulo kwaye laqhuba umsinga wombane ongephi ngalo kangangeentsuku ezisixhenxe.Emva kweli xesha lifutshane, bafumanise ukuba ukuya kuthi ga kwi-24 pesenti yenickel eyayikho ekuqaleni yayivaleleke kwisikali.
UJannen uthi inokuba yindlela engabizi kwaye kulula ukuyisusanickelungcoliso.“Asinakukuphelisa ngokupheleleyo ungcoliseko, kodwa leyo inokuba yenye yeendlela zokulunciphisa,” utshilo.
Iziphumo zazingacwangciswanga, njengoko ukupheliswa kongcoliseko kwakungeyiyo enye yeenjongo zenkqubo yophando lwangaphambili.Uphando oluphambili lukaJanine lugxile ekuphuhliseni iindlela zokulwa nokhukuliseko lonxweme: ufunda ukuba iidiphozithi zekalika ezingcwatywe kumnatha wocingo kumgangatho wolwandle zinokusebenza njengohlobo lwesamente yendalo, inceda ukuzinzisa iidipozithi phantsi kweedykes okanye kumanxweme anesanti.
UJannin waqala iprojekthi eNew Caledonia ukufumanisa ukuba uthungelwano lunokubamba ungcoliseko olwaneleyo lwentsimbi ukunceda ukufunda ngembali yesiza yongcoliseko lwenikeli.Ukhumbula oku: “Kodwa sathi sakufumanisa ukuba sinokubamba izixa ezikhulu zenickel, saqalisa ukucinga ngezinto esinokuzisebenzisa kwimizi-mveliso.
Indlela ayisusi i-nickel kuphela, kodwa intaphane yezinye isinyithi ngokunjalo, utshilo usokhemikhali wokusingqongileyo uChristine Orians weYunivesithi yaseBritish Columbia eVancouver.“Imvula edibeneyo ayikhethi kakhulu,” uxelele iChemistry World.Andazi ukuba iya kusebenza na ekususeni iintsimbi ezinetyhefu ngokwaneleyo ngaphandle kokususa iintsimbi ezinokuba luncedo njengentsimbi.
IJeanning, nangona kunjalo, ayinakukhathazeka ukuba inkqubo, ukuba isetyenziswe kwinqanaba elikhulu, iya kususa iiminerali ezibalulekileyo elwandle.Kwiimvavanyo ezisuse kuphela iipesenti ezi-3 ze-calcium kunye neepesenti ze-0.4 ze-magnesium emanzini, umxholo wesinyithi elwandle uphezulu ngokwaneleyo ukuba ungabi nefuthe elikhulu, wathi.
Ngokukodwa, uJeannin ucebise ukuba inkqubo enjalo ingafakwa kwiindawo ezilahlekileyo ze-nickel ezifana nechweba laseNoumea ukunceda ukunciphisa inani le-nickel.nickeliphelela elwandle.Ayifuni ulawulo oluninzi kwaye inokudityaniswa kwimithombo yamandla ehlaziyekayo efana neepaneli zelanga.I-Nickel kunye nezinye izingcolisi ezibanjiweyo kwisikali zinokufunyanwa kwaye zisetyenziswe kwakhona.
UJeanning uthe yena kunye noogxa bakhe basebenzisana neenkampani zaseFrance naseNew Caledonia ukuphuhlisa iprojekthi yokulinga ukunceda ukubona ukuba le nkqubo ingasetyenziswa na kumzi mveliso.
© Umbutho wasebukhosini weChemistry document.bhala(uMhla omtsha().getFullYear());Inombolo yobhaliso yesisa: 207890