Chromite ni ikintu cyingenzi cyo gushonga ferroalloys, ibyuma bitagira umwanda hamwe nudukoresho twinshi.Inganda zikora metallurgical zikoresha hafi 60% ya chromium, ikoreshwa cyane mugukora ibyuma bivanze cyane cyane ibyuma bitagira umwanda.Muri icyo gihe, chromite nayo ikoreshwa cyane mu nganda zikora inganda, inganda zikora inganda n’inganda zoroheje.
Ibikoresho bya Ore
Hariho ubwoko burenga mirongo itanu bwa chromium irimo amabuye y'agaciro aboneka muri kamere, ariko amabuye ya chromium yonyine afite agaciro k'inganda ni chromite, ari spinel (MgO, Al2O3), chromite ya magnesia (MgO, Cr2O3), na magnetite.(FeO, Fe2O3) nibindi bisubizo bikomeye.Mubyukuri, formulaire yimiti ya chromite ni FeO, Cr2O3, irimo 68% Cr2O3, 32% FeO, magnetique yo hagati, ubucucike 4.1 ~ 4.7g / cm3, ubukana bwa Mohs 5.5 ~ 6.5, kandi isura igaragara kuva kumukara kugeza mwijimye.Amabuye y'agaciro ya Gangue arimo olivine, inzoka na pyroxene, rimwe na rimwe aherekejwe na vanadium, nikel, cobalt na molybdenum.
Ikoranabuhanga
Ubushinwa bwa chromite bukennye cyane, bwibanze muri Tibet, Sinayi, Mongoliya Imbere, Gansu nizindi ntara.Umutungo wa chromite w’amahanga ukwirakwizwa cyane muri Afrika yepfo, Uburusiya, Burezili, Amerika ndetse no mubindi bihugu.Chromite ifite ibiranga ubucucike bukabije, magnetisme yo hagati hamwe nuduce duto twa kirisiti.Mubisanzwe, itondekwa no gukaraba amabuye, gutandukanya imbaraga za magneti, gutandukanya imbaraga zikomeye za magnetique, gutandukanya imbaraga za rukuruzi, flotation nibindi bikorwa.
Uburyo bwo gukaraba
Irakwiriye kubutaka bwa chromite yuzuye kandi ifite urwego rwo hejuru rwamabuye mbisi kandi cyane cyane ibumba rimeze nkibumba ryiza nkumwanda.Ibicuruzwa byujuje ubuziranenge birashobora guhitamo gukaraba byoroshye.
Gutandukana kwa rukuruzi
Chromite ifite imiterere ya magnetique iringaniye kandi irashobora gutandukanywa no gutandukana kwumye cyangwa gutose.Magnetite ifitanye isano yabanje gutandukanywa na magnetique idakomeye, hanyuma itandukanijwe na magnetiki na CXJ cyangwa CFLJ, itandukanya magnetiki itandukanya, impeta ihagaritse impagarike ya magnetiki itandukanya, nibindi.Uburyo bwo gutandukanya magnetique bufite ibyiza byubushobozi bunini bwo gutunganya nibipimo bihamye.
Urubuga rusaba chromite yo muri Afrika yepfo
Gutondeka ibitangazamakuru biremereye
Uburemere bwihariye bwa chromite ni 4.1 ~ 4.7g / cm3, kandi uburemere bwihariye bwa gangue hamwe namabuye y'agaciro ya silikatike ni 2.7 ~ 3.2g / cm3.Kwifashisha itandukaniro riri hagati yubucucike bwamabuye y'agaciro, chute spiral, jigging, ameza ahinda umushyitsi, inyungu za spiral zirashobora gukoreshwa Imashini, centrifuges nibindi bikoresho biremereye byo gutondeka.Ubu buryo burakwiriye kuri chromite hamwe nubunini bwa kirisiti ya kirisiti, kandi uduce duto duto twabuze murizo.
Flotation
Chromite irashobora gukoresha aside irike cyangwa ikusanya amine kugirango ihitemo ibintu byujuje ubuziranenge binyuze muburyo bukomeye bwa pH.Birakwiriye kuri chromite nziza-nziza.
Kunguka imiti
Kubutare bwa chrome zimwe na zimwe zigoye gutunganywa nuburyo bukoreshwa muburyo bwa tekinike, inyungu-uburyo bwo guhuza imiti cyangwa uburyo bumwe bwimiti.Uburyo bwo kwifashisha imiti burimo: gutoranya guhitamo, redox, gutandukanya fuse, acide sulfurike na acide chromic, kugabanya no kugabanya aside aside, nibindi.
Akarorero
Urwego rwa Cr2O3 ruri muri chromite imwe murizo muri Afrika yepfo ni 24.80%.Numwanya wa chute re-guhitamo umurizo.Ingano yicyitegererezo ni -40 mesh kandi ingano yingirakamaro irasa.Chromite iboneka mubice byiza hamwe numubiri uhuza hamwe.Amabuye y'agaciro ya gangue Ni olivine na pyroxene, hamwe nibyondo bike.Ukurikije imiterere y'amabuye y'agaciro, inzira yo kugenerwa ishyirwaho nk'impeta iringaniye cyangwa ihagaritse intambwe imwe.
Chromite nziza cyane ikubiye mubirindiro bya site ya chute gravit itandukanya ifata isahani iringaniye cyangwa impeta ihagaritse imbaraga zikomeye zo gutandukanya magnetiki, zishobora guhitamo ibicuruzwa byujuje ubuziranenge.Chromium irimo imyunyu ngugu mu murizo wa magnetique ni intungamubiri nziza cyangwa izindi minisiteri idafite agaciro ya chromium irimo ibipimo byiza byunguka.
Igihe cyo kohereza: Ukwakira-12-2021