Isu tinoziva kuti Congo (Gold) Copper Mine ndiyo ine matura akawanda pasi rose.Ore yayo yemhangura inonyanya kuve cobalt yemhangura oxidized pamusoro.Panyaya yekudyara kwakawanda uye kwakawedzera, kubuda kwekunyorovesa kwemhangura kwakawedzera kuwedzera.
Kunyorova kwekugadzirwa kweCongo (Goridhe) Mhangura inowanzonzi "ore leaching- extraction- electrodeposition".Munguva yekunyudza mhangura, sulfur dioxide kana sodium sulfate inoshandiswa sechinhu chinoderedza kunyudza cobalt.Iyo sulfuric acid solution ine cobalt yemhangura inogadzira cathode mhangura mushure mekubviswa kwemhangura.
Nekuda kwekuti hwaro hwemaindasitiri hwemuno husina kusimba, kunze kweimwe sulfuric acid, zvese zvemaindasitiri zvekubatsira zvinhu zvinoda kutengwa kunze kwenyika.Kuti uchengetedze mutengo, mazhinji ezvigadzirwa zvecobalt zvinogadzirwa munharaunda yenzvimbo zvinonyanya kugadzirwa nemaitiro ari pamusoro.Iyo inonyanya kuzivikanwa crude cobalt makomisheni ndeye kushandiswa kwe sodium carbonate cobalt kugadzira cobalt carbonate.Zvisinei, iyo yakaderera cobalt mu rough cobalt carbonate yakaderera, yakawanda iyo inenge 25%, inowedzera mari yekufambisa uye mamwe mari, uye sodium carbonate cobalt ine yakawanda yemunyu munyu iyo yakaoma kubata nayo.Kuburitsa kwakananga kunokonzeresa kusvibiswa kwezvakatipoteredza, uye nepo kuchizokonzera kusvibiswa kwezvakatipoteredza.Kana ikashandiswa muhurongwa kwenguva yakareba, inokonzera huwandu hwakawanda hwe sodium ions mumushonga, izvo zvichakanganisa zvakanyanya kugadzirwa kwemhangura.Sezvo marongero ekuchengetedza kwezvakatipoteredza ari kuomarara zvishoma nezvishoma, akati wandei emakambani atanga kudzidza maitiro ekugadzira cobalt ane hupfumi uye ane hushamwari.Magnesium oxidekunyura cobalt tekinoroji ndeimwe yenzira.
Inotarisa kuCongo (Gold) mafekitori emunharaunda ekunyungudutsa, cobalt-ine mhangura inobudisa zvinwiwa mucobalt, uye kumashure ekubvisa zvinwiwa, mhedzisiro ye magnesium oxide uye cobalt pasi pemamiriro akasiyana yakadzidzwa.Muanenge maawa mana, iyo yekupedzisira pH kukosha ndeye 8.0, uye iyo cobalt inonyura mhedzisiro inoshandiswa ne magnesium oxide pulp.Iyo cobalt hydroxide chigadzirwa chakakwira kupfuura 36%, iyo cobalt kudzoreredza mwero inopfuura 99%, uye chiyero chekushandisa chemagnesium oxide chinogona kusvika 91%.
Kudzokorodza simbi dzecobalt kubva kucobalt sulfate solution system kazhinji kunotora kuwedzera magnesium oxide paste kugadzira cobalt hydroxide zvigadzirwa.Kunyangwe iyo magnesium oxide paste inochengetwa yakagadzikana.Kuwedzera kwehutsvina muzvigadzirwa, izvo zvinokanganisa kunaka kwechigadzirwa, uye iyo yakaderera magnesium oxide paste inokonzeresa kuderera kwecobalt kudzokorora.
Nguva yekutumira: Zvita-13-2022