I-Chromite iyinto ebalulekile yokuncibilikisa ama-ferroalloys, insimbi engagqwali nama-alloys ayigugu.Imboni ye-metallurgical isebenzisa cishe u-60% we-chromium, esetshenziselwa ikakhulukazi ukukhiqiza insimbi ye-alloy, ikakhulukazi insimbi engagqwali.Ngasikhathi sinye, i-chromite isetshenziswa kabanzi embonini ye-refractory, imboni yamakhemikhali kanye nemboni yokukhanya.
Izakhiwo ze-Ore
Kunezinhlobo ezingaphezu kwamashumi amahlanu zamaminerali aqukethe i-chromium atholakala emvelweni, kodwa okuwukuphela kwamaminerali aqukethe i-chromium anenani lemboni i-chromite, okuyi-spinel (MgO, Al2O3), i-magnesia chromite (MgO, Cr2O3), ne-magnetite.(FeO, Fe2O3) nezinye izixazululo eziqinile.Ngokombono, ifomula yamakhemikhali ye-chromite ithi FeO, Cr2O3, equkethe u-68% Cr2O3, 32% FeO, uzibuthe omaphakathi, ukuminyana okungu-4.1~4.7g/cm3, ubulukhuni be-Mohs 5.5~6.5, kanye nokubukeka kwangaphezulu kusuka kokumnyama kuya kokunsundu ngokumnyama.Amaminerali e-Gangue ikakhulukazi afaka i-olivine, i-serpentine ne-pyroxene, ngezinye izikhathi ehambisana nenani elincane le-vanadium, i-nickel, i-cobalt kanye nezakhi zeqembu le-molybdenum.
Ukucubungula Ubuchwepheshe
Imithombo ye-chromite yaseChina impofu kakhulu, ikakhulukazi e-Tibet, e-Xinjiang, e-Inner Mongolia, e-Gansu nakwezinye izifundazwe.Izinsiza ze-chromite zangaphandle zisatshalaliswa kakhulu eNingizimu Afrika, eRussia, eBrazil, e-United States nakwamanye amazwe.I-Chromite inezici zokuminyana okuphezulu, uzibuthe ophakathi nendawo kanye nezinhlayiya zekristalu emahhadla.Ngokuvamile, ihlelwa ngokuwashwa kwe-ore, ukuhlukaniswa okubuthakathaka kazibuthe, ukuhlukana okunamandla kazibuthe, ukuhlukaniswa kwamandla adonsela phansi, ukuntanta nezinye izinqubo.
Indlela yokugeza
Ilungele insimbi ye-chromite eqinile enezinga eliphezulu le-ore eluhlaza futhi ikakhulukazi udaka oluhle olunjengobumba njengokungcola.Imikhiqizo ye-coarse concentrate efanelekayo ingakhethwa ngokuwasha okulula.
Ukuhlukaniswa kwamagnetic
I-Chromite inezici kazibuthe eziphakathi nendawo futhi ingahlukaniswa ngokuhlukana kozibuthe okomile noma okumanzi.I-magnetite ehlotshaniswayo iqala ukuhlukaniswa nguzibuthe obuthakathaka, bese ihlukaniswa ngozibuthe yi-CXJ noma i-CFLJ, isihlukanisi sepuleti kazibuthe, isihlukanisi esime mpo se-gradient high gradient magnetic, njll. Izisetshenziswa zenza i-beneficiation eyomile nemanzi, futhi ingakhetha imikhiqizo yokugxilisa ingqondo efanelekayo.Indlela yokuhlukanisa kazibuthe inezinzuzo zomthamo omkhulu wokucubungula kanye nezinkomba ezizinzile.
Indawo yesicelo sechromite yaseNingizimu Afrika
Ukuhlunga imidiya esindayo
Amandla adonsela phansi athile e-chromite ngu-4.1~4.7g/cm3, futhi amandla adonsela phansi ahlobene ne-ganggue kanye namaminerali e-iron silicate ngokuvamile angu-2.7~3.2g/cm3.Ukusebenzisa umehluko wokuminyana phakathi kwamaminerali, i-spiral chute, i-jigging, itafula elinyakazayo, i-spiral beneficiation ingasetshenziswa Imishini, ama-centrifuge nezinye izinto ezisindayo zokuhlunga zokuhlunga.Le ndlela ifanele i-chromite enosayizi wokusanhlamvu we-crystal oqinile, futhi izinhlayiya ezinhle zilahleka kalula kuma-tailings.
Ukuntanta
I-Chromite ingasebenzisa i-fatty acid noma abaqoqi be-amine ukuze bakhethe ukugxilisa ingqondo okufanelekayo ngokusebenzisa izinqubo ezimahhadlahhadla nezishanelayo ngaphansi kwezimo ezifanele ze-pH.Ifaneleka kuma-chromites anezinhlamvu ezinhle futhi ezihlanjululwe kahle.
Ukuzuza kwamakhemikhali
Kwamanye ama-chrome ore okunzima ukusetshenzwa ngezindlela zokuhlomula ngomshini, kwamukelwa inqubo ehlanganisiwe ye-beneficiation-chemical noma indlela eyodwa yamakhemikhali.Izindlela zokusiza amakhemikhali zihlanganisa: ukukhishwa okukhethiwe, i-redox, ukuhlukaniswa kwe-fuse, i-sulfuric acid ne-chromic acid leaching, ukunciphisa kanye ne-sulfuric acid leaching, njll.
Isibonelo sokuhlomula
Izinga le-Cr2O3 eliqukethwe kumsila we-chromite ethile eNingizimu Afrika lingama-24.80%.Kuyindawo yokukhetha kabusha i-chute esendaweni.Usayizi wesampula ungu--40 mesh futhi usayizi wezinhlayiyana ufana ngokuqhathaniswa.I-chromite ikhona ezinhlayiyeni ezinhle kanye nemizimba ehlangene kanye nokufakiwe.Amaminerali e-ganggue ayinhloko I-olivine ne-pyroxene, enodaka oluncane oluncane.Ngokwemvelo yamasampula e-ore, inqubo yokuzuza isungulwa njengendandatho eyisicaba noma eqondile yesinyathelo esisodwa.
Ichromite ecwebile equkethwe kumsila wokuhlukaniswa kwamandla adonsela phansi e-chute esendaweni isebenzisa ipuleti eliyisicaba noma inqubo yokuhlukanisa indandatho eqondile enozibuthe eqinile, engakhetha imikhiqizo efanelekile yokugxilisa ingqondo.Amaminerali aqukethe i-chromium emsileni kazibuthe ayizinto ezihlanganisiwe ezinezinhlamvu ezinhle noma amanye amaminerali angabalulekile aqukethe i-chromium azuze izinkomba ezinhle zokuhlomula.
Isikhathi sokuthumela: Oct-12-2021