Ko te mahi matua o te konutea pūkawa ngāwha i roto i te tukatuka kohuke he ki te whiriwhiri konutea ore me te ātete kohuke konutea-kei roto.I te nuinga o te waa, he pai ake te aukati i roto i te slurry alkaline.Ko te teitei ake o te uara pH o te slurry, ka tino kitea te parenga, he painga ki te tukatuka kohuke.He rauemi tukatuka kohuke hoki e whakamahia nuitia ana me te utu iti me te painga pai.He mea tino nui ki te tukatuka kohuke.
Tikanga o te mahi o te konutea pūkawa ngāwha: parakore konutea pūkawa ngāwha he karaihe ma, ngāwari wairewa i roto i te wai, me te he aukati o sphalerite.I te nuinga o te waa he aukati noa i roto i te slurry kawakore.Ko te teitei ake o te pH o te slurry, ka tino kitea tona paanga aukati..Ko te konutea pūkawa ngāwha ka puta te tauhohenga e whai ake nei i roto i te wai:
ZnSO4＝Zn2++SO42-
Zn2++2H20=Zn(OH)2+2H+
Ko te Zn(OH)2 he pūhui amphoteric ka memeha ki te waikawa hei hanga tote.
Zn(OH)2+H2S04＝ZnSO4+2H2O
I roto i te reo kawakore, ka whiwhi HZnO2- me ZnO22-.Ko ta ratou whakauru ki nga kohuke ka whakarei ake i te hydrophilicity o nga papa kohuke.
Zn(OH)2+NaOH=NaHZnO2+H2O
Zn(OH)2+2NaOH=Na2ZnO2+2H2O
Wā tuku: Tihema-14-2023
